author | Wuzzy <almikes@aol.com> |
Sat, 15 Apr 2017 06:52:14 +0200 | |
changeset 12256 | 789277d46784 |
parent 7813 | 7ac83d79b897 |
permissions | -rw-r--r-- |
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/* |
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* copyright (c) 2001 Fabrice Bellard |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVFORMAT_AVFORMAT_H |
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#define AVFORMAT_AVFORMAT_H |
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/** |
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* @file |
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* @ingroup libavf |
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* Main libavformat public API header |
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*/ |
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/** |
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* @defgroup libavf I/O and Muxing/Demuxing Library |
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* @{ |
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* |
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* Libavformat (lavf) is a library for dealing with various media container |
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* formats. Its main two purposes are demuxing - i.e. splitting a media file |
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* into component streams, and the reverse process of muxing - writing supplied |
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* data in a specified container format. It also has an @ref lavf_io |
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* "I/O module" which supports a number of protocols for accessing the data (e.g. |
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* file, tcp, http and others). Before using lavf, you need to call |
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* av_register_all() to register all compiled muxers, demuxers and protocols. |
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* Unless you are absolutely sure you won't use libavformat's network |
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* capabilities, you should also call avformat_network_init(). |
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* |
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* A supported input format is described by an AVInputFormat struct, conversely |
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* an output format is described by AVOutputFormat. You can iterate over all |
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* registered input/output formats using the av_iformat_next() / |
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* av_oformat_next() functions. The protocols layer is not part of the public |
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* API, so you can only get the names of supported protocols with the |
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* avio_enum_protocols() function. |
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* |
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* Main lavf structure used for both muxing and demuxing is AVFormatContext, |
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* which exports all information about the file being read or written. As with |
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* most Libav structures, its size is not part of public ABI, so it cannot be |
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* allocated on stack or directly with av_malloc(). To create an |
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* AVFormatContext, use avformat_alloc_context() (some functions, like |
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* avformat_open_input() might do that for you). |
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* |
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* Most importantly an AVFormatContext contains: |
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* @li the @ref AVFormatContext.iformat "input" or @ref AVFormatContext.oformat |
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* "output" format. It is either autodetected or set by user for input; |
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* always set by user for output. |
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* @li an @ref AVFormatContext.streams "array" of AVStreams, which describe all |
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* elementary streams stored in the file. AVStreams are typically referred to |
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* using their index in this array. |
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* @li an @ref AVFormatContext.pb "I/O context". It is either opened by lavf or |
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* set by user for input, always set by user for output (unless you are dealing |
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* with an AVFMT_NOFILE format). |
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* |
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* @section lavf_options Passing options to (de)muxers |
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* Lavf allows to configure muxers and demuxers using the @ref avoptions |
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* mechanism. Generic (format-independent) libavformat options are provided by |
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* AVFormatContext, they can be examined from a user program by calling |
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* av_opt_next() / av_opt_find() on an allocated AVFormatContext (or its AVClass |
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* from avformat_get_class()). Private (format-specific) options are provided by |
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* AVFormatContext.priv_data if and only if AVInputFormat.priv_class / |
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* AVOutputFormat.priv_class of the corresponding format struct is non-NULL. |
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* Further options may be provided by the @ref AVFormatContext.pb "I/O context", |
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* if its AVClass is non-NULL, and the protocols layer. See the discussion on |
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* nesting in @ref avoptions documentation to learn how to access those. |
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* |
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* @defgroup lavf_decoding Demuxing |
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* @{ |
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* Demuxers read a media file and split it into chunks of data (@em packets). A |
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* @ref AVPacket "packet" contains one or more encoded frames which belongs to a |
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* single elementary stream. In the lavf API this process is represented by the |
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* avformat_open_input() function for opening a file, av_read_frame() for |
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* reading a single packet and finally avformat_close_input(), which does the |
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* cleanup. |
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* |
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* @section lavf_decoding_open Opening a media file |
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* The minimum information required to open a file is its URL or filename, which |
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* is passed to avformat_open_input(), as in the following code: |
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* @code |
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* const char *url = "in.mp3"; |
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* AVFormatContext *s = NULL; |
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* int ret = avformat_open_input(&s, url, NULL, NULL); |
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* if (ret < 0) |
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* abort(); |
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* @endcode |
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* The above code attempts to allocate an AVFormatContext, open the |
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* specified file (autodetecting the format) and read the header, exporting the |
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* information stored there into s. Some formats do not have a header or do not |
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* store enough information there, so it is recommended that you call the |
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* avformat_find_stream_info() function which tries to read and decode a few |
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* frames to find missing information. |
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* |
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* In some cases you might want to preallocate an AVFormatContext yourself with |
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* avformat_alloc_context() and do some tweaking on it before passing it to |
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* avformat_open_input(). One such case is when you want to use custom functions |
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* for reading input data instead of lavf internal I/O layer. |
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* To do that, create your own AVIOContext with avio_alloc_context(), passing |
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* your reading callbacks to it. Then set the @em pb field of your |
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* AVFormatContext to newly created AVIOContext. |
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* |
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* Since the format of the opened file is in general not known until after |
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* avformat_open_input() has returned, it is not possible to set demuxer private |
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* options on a preallocated context. Instead, the options should be passed to |
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* avformat_open_input() wrapped in an AVDictionary: |
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* @code |
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* AVDictionary *options = NULL; |
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* av_dict_set(&options, "video_size", "640x480", 0); |
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* av_dict_set(&options, "pixel_format", "rgb24", 0); |
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* |
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* if (avformat_open_input(&s, url, NULL, &options) < 0) |
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* abort(); |
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* av_dict_free(&options); |
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* @endcode |
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* This code passes the private options 'video_size' and 'pixel_format' to the |
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* demuxer. They would be necessary for e.g. the rawvideo demuxer, since it |
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* cannot know how to interpret raw video data otherwise. If the format turns |
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* out to be something different than raw video, those options will not be |
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* recognized by the demuxer and therefore will not be applied. Such unrecognized |
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* options are then returned in the options dictionary (recognized options are |
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* consumed). The calling program can handle such unrecognized options as it |
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* wishes, e.g. |
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* @code |
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* AVDictionaryEntry *e; |
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* if (e = av_dict_get(options, "", NULL, AV_DICT_IGNORE_SUFFIX)) { |
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* fprintf(stderr, "Option %s not recognized by the demuxer.\n", e->key); |
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* abort(); |
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* } |
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* @endcode |
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* |
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* After you have finished reading the file, you must close it with |
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* avformat_close_input(). It will free everything associated with the file. |
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* |
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* @section lavf_decoding_read Reading from an opened file |
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* Reading data from an opened AVFormatContext is done by repeatedly calling |
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* av_read_frame() on it. Each call, if successful, will return an AVPacket |
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* containing encoded data for one AVStream, identified by |
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* AVPacket.stream_index. This packet may be passed straight into the libavcodec |
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* decoding functions avcodec_decode_video2(), avcodec_decode_audio4() or |
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* avcodec_decode_subtitle2() if the caller wishes to decode the data. |
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* |
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* AVPacket.pts, AVPacket.dts and AVPacket.duration timing information will be |
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* set if known. They may also be unset (i.e. AV_NOPTS_VALUE for |
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* pts/dts, 0 for duration) if the stream does not provide them. The timing |
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* information will be in AVStream.time_base units, i.e. it has to be |
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* multiplied by the timebase to convert them to seconds. |
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* |
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* The packet data belongs to the demuxer and is invalid after the next call to |
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* av_read_frame(). The user must free the packet with av_free_packet() before |
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* calling av_read_frame() again or closing the file. |
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* |
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* @section lavf_decoding_seek Seeking |
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* @} |
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* |
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* @defgroup lavf_encoding Muxing |
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* @{ |
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* @} |
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* |
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* @defgroup lavf_io I/O Read/Write |
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* @{ |
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* @} |
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* |
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* @defgroup lavf_codec Demuxers |
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* @{ |
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* @defgroup lavf_codec_native Native Demuxers |
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* @{ |
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* @} |
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* @defgroup lavf_codec_wrappers External library wrappers |
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* @{ |
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* @} |
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* @} |
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* @defgroup lavf_protos I/O Protocols |
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* @{ |
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* @} |
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* @defgroup lavf_internal Internal |
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* @{ |
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* @} |
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* @} |
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* |
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*/ |
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|
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#include <time.h> |
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#include <stdio.h> /* FILE */ |
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#include "libavcodec/avcodec.h" |
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#include "libavutil/dict.h" |
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#include "libavutil/log.h" |
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|
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#include "avio.h" |
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#include "libavformat/version.h" |
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|
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#if FF_API_AV_GETTIME |
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#include "libavutil/time.h" |
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#endif |
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|
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struct AVFormatContext; |
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|
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|
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/** |
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* @defgroup metadata_api Public Metadata API |
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* @{ |
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* @ingroup libavf |
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* The metadata API allows libavformat to export metadata tags to a client |
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* application when demuxing. Conversely it allows a client application to |
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* set metadata when muxing. |
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* |
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* Metadata is exported or set as pairs of key/value strings in the 'metadata' |
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* fields of the AVFormatContext, AVStream, AVChapter and AVProgram structs |
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* using the @ref lavu_dict "AVDictionary" API. Like all strings in Libav, |
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* metadata is assumed to be UTF-8 encoded Unicode. Note that metadata |
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* exported by demuxers isn't checked to be valid UTF-8 in most cases. |
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* |
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* Important concepts to keep in mind: |
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* - Keys are unique; there can never be 2 tags with the same key. This is |
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* also meant semantically, i.e., a demuxer should not knowingly produce |
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* several keys that are literally different but semantically identical. |
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* E.g., key=Author5, key=Author6. In this example, all authors must be |
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* placed in the same tag. |
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* - Metadata is flat, not hierarchical; there are no subtags. If you |
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* want to store, e.g., the email address of the child of producer Alice |
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* and actor Bob, that could have key=alice_and_bobs_childs_email_address. |
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* - Several modifiers can be applied to the tag name. This is done by |
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* appending a dash character ('-') and the modifier name in the order |
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* they appear in the list below -- e.g. foo-eng-sort, not foo-sort-eng. |
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* - language -- a tag whose value is localized for a particular language |
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* is appended with the ISO 639-2/B 3-letter language code. |
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* For example: Author-ger=Michael, Author-eng=Mike |
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* The original/default language is in the unqualified "Author" tag. |
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* A demuxer should set a default if it sets any translated tag. |
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* - sorting -- a modified version of a tag that should be used for |
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* sorting will have '-sort' appended. E.g. artist="The Beatles", |
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* artist-sort="Beatles, The". |
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* |
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* - Demuxers attempt to export metadata in a generic format, however tags |
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* with no generic equivalents are left as they are stored in the container. |
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248 |
* Follows a list of generic tag names: |
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249 |
* |
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250 |
@verbatim |
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251 |
album -- name of the set this work belongs to |
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album_artist -- main creator of the set/album, if different from artist. |
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e.g. "Various Artists" for compilation albums. |
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artist -- main creator of the work |
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comment -- any additional description of the file. |
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256 |
composer -- who composed the work, if different from artist. |
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257 |
copyright -- name of copyright holder. |
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creation_time-- date when the file was created, preferably in ISO 8601. |
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date -- date when the work was created, preferably in ISO 8601. |
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disc -- number of a subset, e.g. disc in a multi-disc collection. |
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261 |
encoder -- name/settings of the software/hardware that produced the file. |
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encoded_by -- person/group who created the file. |
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263 |
filename -- original name of the file. |
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264 |
genre -- <self-evident>. |
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265 |
language -- main language in which the work is performed, preferably |
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266 |
in ISO 639-2 format. Multiple languages can be specified by |
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separating them with commas. |
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performer -- artist who performed the work, if different from artist. |
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E.g for "Also sprach Zarathustra", artist would be "Richard |
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Strauss" and performer "London Philharmonic Orchestra". |
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publisher -- name of the label/publisher. |
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service_name -- name of the service in broadcasting (channel name). |
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service_provider -- name of the service provider in broadcasting. |
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title -- name of the work. |
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track -- number of this work in the set, can be in form current/total. |
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variant_bitrate -- the total bitrate of the bitrate variant that the current stream is part of |
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@endverbatim |
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278 |
* |
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* Look in the examples section for an application example how to use the Metadata API. |
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280 |
* |
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281 |
* @} |
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282 |
*/ |
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283 |
|
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/* packet functions */ |
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285 |
|
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286 |
|
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/** |
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288 |
* Allocate and read the payload of a packet and initialize its |
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289 |
* fields with default values. |
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* |
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* @param pkt packet |
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* @param size desired payload size |
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* @return >0 (read size) if OK, AVERROR_xxx otherwise |
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*/ |
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int av_get_packet(AVIOContext *s, AVPacket *pkt, int size); |
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|
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|
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/** |
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* Read data and append it to the current content of the AVPacket. |
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* If pkt->size is 0 this is identical to av_get_packet. |
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* Note that this uses av_grow_packet and thus involves a realloc |
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* which is inefficient. Thus this function should only be used |
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* when there is no reasonable way to know (an upper bound of) |
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* the final size. |
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* |
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* @param pkt packet |
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* @param size amount of data to read |
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* @return >0 (read size) if OK, AVERROR_xxx otherwise, previous data |
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* will not be lost even if an error occurs. |
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*/ |
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int av_append_packet(AVIOContext *s, AVPacket *pkt, int size); |
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|
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/*************************************************/ |
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/* fractional numbers for exact pts handling */ |
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|
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/** |
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* The exact value of the fractional number is: 'val + num / den'. |
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* num is assumed to be 0 <= num < den. |
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*/ |
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typedef struct AVFrac { |
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int64_t val, num, den; |
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} AVFrac; |
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|
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/*************************************************/ |
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/* input/output formats */ |
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|
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struct AVCodecTag; |
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|
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329 |
/** |
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* This structure contains the data a format has to probe a file. |
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331 |
*/ |
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typedef struct AVProbeData { |
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const char *filename; |
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unsigned char *buf; /**< Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero. */ |
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int buf_size; /**< Size of buf except extra allocated bytes */ |
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} AVProbeData; |
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337 |
|
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#define AVPROBE_SCORE_MAX 100 ///< maximum score, half of that is used for file-extension-based detection |
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#define AVPROBE_PADDING_SIZE 32 ///< extra allocated bytes at the end of the probe buffer |
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340 |
|
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/// Demuxer will use avio_open, no opened file should be provided by the caller. |
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#define AVFMT_NOFILE 0x0001 |
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#define AVFMT_NEEDNUMBER 0x0002 /**< Needs '%d' in filename. */ |
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#define AVFMT_SHOW_IDS 0x0008 /**< Show format stream IDs numbers. */ |
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#define AVFMT_RAWPICTURE 0x0020 /**< Format wants AVPicture structure for |
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346 |
raw picture data. */ |
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347 |
#define AVFMT_GLOBALHEADER 0x0040 /**< Format wants global header. */ |
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#define AVFMT_NOTIMESTAMPS 0x0080 /**< Format does not need / have any timestamps. */ |
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#define AVFMT_GENERIC_INDEX 0x0100 /**< Use generic index building code. */ |
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350 |
#define AVFMT_TS_DISCONT 0x0200 /**< Format allows timestamp discontinuities. Note, muxers always require valid (monotone) timestamps */ |
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#define AVFMT_VARIABLE_FPS 0x0400 /**< Format allows variable fps. */ |
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#define AVFMT_NODIMENSIONS 0x0800 /**< Format does not need width/height */ |
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#define AVFMT_NOSTREAMS 0x1000 /**< Format does not require any streams */ |
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354 |
#define AVFMT_NOBINSEARCH 0x2000 /**< Format does not allow to fallback to binary search via read_timestamp */ |
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355 |
#define AVFMT_NOGENSEARCH 0x4000 /**< Format does not allow to fallback to generic search */ |
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#define AVFMT_NO_BYTE_SEEK 0x8000 /**< Format does not allow seeking by bytes */ |
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357 |
#define AVFMT_ALLOW_FLUSH 0x10000 /**< Format allows flushing. If not set, the muxer will not receive a NULL packet in the write_packet function. */ |
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#define AVFMT_TS_NONSTRICT 0x20000 /**< Format does not require strictly |
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|
359 |
increasing timestamps, but they must |
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|
360 |
still be monotonic */ |
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|
361 |
|
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|
362 |
/** |
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|
363 |
* @addtogroup lavf_encoding |
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|
364 |
* @{ |
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|
365 |
*/ |
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|
366 |
typedef struct AVOutputFormat { |
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|
367 |
const char *name; |
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|
368 |
/** |
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|
369 |
* Descriptive name for the format, meant to be more human-readable |
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|
370 |
* than name. You should use the NULL_IF_CONFIG_SMALL() macro |
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|
371 |
* to define it. |
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|
372 |
*/ |
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|
373 |
const char *long_name; |
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|
374 |
const char *mime_type; |
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|
375 |
const char *extensions; /**< comma-separated filename extensions */ |
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|
376 |
/* output support */ |
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|
377 |
enum AVCodecID audio_codec; /**< default audio codec */ |
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|
378 |
enum AVCodecID video_codec; /**< default video codec */ |
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|
379 |
enum AVCodecID subtitle_codec; /**< default subtitle codec */ |
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|
380 |
/** |
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|
381 |
* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_RAWPICTURE, |
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|
382 |
* AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS, AVFMT_VARIABLE_FPS, |
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|
383 |
* AVFMT_NODIMENSIONS, AVFMT_NOSTREAMS, AVFMT_ALLOW_FLUSH, |
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|
384 |
* AVFMT_TS_NONSTRICT |
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|
385 |
*/ |
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|
386 |
int flags; |
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|
387 |
|
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|
388 |
/** |
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|
389 |
* List of supported codec_id-codec_tag pairs, ordered by "better |
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|
390 |
* choice first". The arrays are all terminated by AV_CODEC_ID_NONE. |
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|
391 |
*/ |
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|
392 |
const struct AVCodecTag * const *codec_tag; |
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|
393 |
|
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|
394 |
|
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|
395 |
const AVClass *priv_class; ///< AVClass for the private context |
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|
396 |
|
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|
397 |
/***************************************************************** |
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|
398 |
* No fields below this line are part of the public API. They |
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|
399 |
* may not be used outside of libavformat and can be changed and |
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|
400 |
* removed at will. |
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|
401 |
* New public fields should be added right above. |
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|
402 |
***************************************************************** |
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|
403 |
*/ |
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|
404 |
struct AVOutputFormat *next; |
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|
405 |
/** |
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|
406 |
* size of private data so that it can be allocated in the wrapper |
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|
407 |
*/ |
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|
408 |
int priv_data_size; |
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|
409 |
|
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|
410 |
int (*write_header)(struct AVFormatContext *); |
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|
411 |
/** |
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|
412 |
* Write a packet. If AVFMT_ALLOW_FLUSH is set in flags, |
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|
413 |
* pkt can be NULL in order to flush data buffered in the muxer. |
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|
414 |
* When flushing, return 0 if there still is more data to flush, |
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|
415 |
* or 1 if everything was flushed and there is no more buffered |
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|
416 |
* data. |
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|
417 |
*/ |
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|
418 |
int (*write_packet)(struct AVFormatContext *, AVPacket *pkt); |
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|
419 |
int (*write_trailer)(struct AVFormatContext *); |
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|
420 |
/** |
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|
421 |
* Currently only used to set pixel format if not YUV420P. |
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|
422 |
*/ |
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|
423 |
int (*interleave_packet)(struct AVFormatContext *, AVPacket *out, |
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|
424 |
AVPacket *in, int flush); |
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|
425 |
/** |
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|
426 |
* Test if the given codec can be stored in this container. |
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|
427 |
* |
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|
428 |
* @return 1 if the codec is supported, 0 if it is not. |
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|
429 |
* A negative number if unknown. |
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|
430 |
*/ |
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|
431 |
int (*query_codec)(enum AVCodecID id, int std_compliance); |
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|
432 |
} AVOutputFormat; |
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|
433 |
/** |
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|
434 |
* @} |
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|
435 |
*/ |
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|
436 |
|
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|
437 |
/** |
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|
438 |
* @addtogroup lavf_decoding |
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|
439 |
* @{ |
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|
440 |
*/ |
7ac83d79b897
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|
441 |
typedef struct AVInputFormat { |
7ac83d79b897
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koda
parents:
diff
changeset
|
442 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
443 |
* A comma separated list of short names for the format. New names |
7ac83d79b897
support video recording on windows with automation and headers
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parents:
diff
changeset
|
444 |
* may be appended with a minor bump. |
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parents:
diff
changeset
|
445 |
*/ |
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diff
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|
446 |
const char *name; |
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parents:
diff
changeset
|
447 |
|
7ac83d79b897
support video recording on windows with automation and headers
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parents:
diff
changeset
|
448 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
449 |
* Descriptive name for the format, meant to be more human-readable |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
450 |
* than name. You should use the NULL_IF_CONFIG_SMALL() macro |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
451 |
* to define it. |
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support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
452 |
*/ |
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support video recording on windows with automation and headers
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parents:
diff
changeset
|
453 |
const char *long_name; |
7ac83d79b897
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parents:
diff
changeset
|
454 |
|
7ac83d79b897
support video recording on windows with automation and headers
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diff
changeset
|
455 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
456 |
* Can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_SHOW_IDS, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
457 |
* AVFMT_GENERIC_INDEX, AVFMT_TS_DISCONT, AVFMT_NOBINSEARCH, |
7ac83d79b897
support video recording on windows with automation and headers
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parents:
diff
changeset
|
458 |
* AVFMT_NOGENSEARCH, AVFMT_NO_BYTE_SEEK. |
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koda
parents:
diff
changeset
|
459 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
460 |
int flags; |
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support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
461 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
462 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
463 |
* If extensions are defined, then no probe is done. You should |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
464 |
* usually not use extension format guessing because it is not |
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support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
465 |
* reliable enough |
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parents:
diff
changeset
|
466 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
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|
467 |
const char *extensions; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
468 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
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|
469 |
const struct AVCodecTag * const *codec_tag; |
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support video recording on windows with automation and headers
koda
parents:
diff
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|
470 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
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|
471 |
const AVClass *priv_class; ///< AVClass for the private context |
7ac83d79b897
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koda
parents:
diff
changeset
|
472 |
|
7ac83d79b897
support video recording on windows with automation and headers
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parents:
diff
changeset
|
473 |
/***************************************************************** |
7ac83d79b897
support video recording on windows with automation and headers
koda
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|
474 |
* No fields below this line are part of the public API. They |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
475 |
* may not be used outside of libavformat and can be changed and |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
476 |
* removed at will. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
477 |
* New public fields should be added right above. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
478 |
***************************************************************** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
479 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
480 |
struct AVInputFormat *next; |
7ac83d79b897
support video recording on windows with automation and headers
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parents:
diff
changeset
|
481 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
482 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
483 |
* Raw demuxers store their codec ID here. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
484 |
*/ |
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support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
485 |
int raw_codec_id; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
486 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
487 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
488 |
* Size of private data so that it can be allocated in the wrapper. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
489 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
490 |
int priv_data_size; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
491 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
492 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
493 |
* Tell if a given file has a chance of being parsed as this format. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
494 |
* The buffer provided is guaranteed to be AVPROBE_PADDING_SIZE bytes |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
495 |
* big so you do not have to check for that unless you need more. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
496 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
497 |
int (*read_probe)(AVProbeData *); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
498 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
499 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
500 |
* Read the format header and initialize the AVFormatContext |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
501 |
* structure. Return 0 if OK. Only used in raw format right |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
502 |
* now. 'avformat_new_stream' should be called to create new streams. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
503 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
504 |
int (*read_header)(struct AVFormatContext *); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
505 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
506 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
507 |
* Read one packet and put it in 'pkt'. pts and flags are also |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
508 |
* set. 'avformat_new_stream' can be called only if the flag |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
509 |
* AVFMTCTX_NOHEADER is used and only in the calling thread (not in a |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
510 |
* background thread). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
511 |
* @return 0 on success, < 0 on error. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
512 |
* When returning an error, pkt must not have been allocated |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
513 |
* or must be freed before returning |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
514 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
515 |
int (*read_packet)(struct AVFormatContext *, AVPacket *pkt); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
516 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
517 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
518 |
* Close the stream. The AVFormatContext and AVStreams are not |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
519 |
* freed by this function |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
520 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
521 |
int (*read_close)(struct AVFormatContext *); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
522 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
523 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
524 |
* Seek to a given timestamp relative to the frames in |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
525 |
* stream component stream_index. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
526 |
* @param stream_index Must not be -1. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
527 |
* @param flags Selects which direction should be preferred if no exact |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
528 |
* match is available. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
529 |
* @return >= 0 on success (but not necessarily the new offset) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
530 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
531 |
int (*read_seek)(struct AVFormatContext *, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
532 |
int stream_index, int64_t timestamp, int flags); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
533 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
534 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
535 |
* Get the next timestamp in stream[stream_index].time_base units. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
536 |
* @return the timestamp or AV_NOPTS_VALUE if an error occurred |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
537 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
538 |
int64_t (*read_timestamp)(struct AVFormatContext *s, int stream_index, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
539 |
int64_t *pos, int64_t pos_limit); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
540 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
541 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
542 |
* Start/resume playing - only meaningful if using a network-based format |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
543 |
* (RTSP). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
544 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
545 |
int (*read_play)(struct AVFormatContext *); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
546 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
547 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
548 |
* Pause playing - only meaningful if using a network-based format |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
549 |
* (RTSP). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
550 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
551 |
int (*read_pause)(struct AVFormatContext *); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
552 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
553 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
554 |
* Seek to timestamp ts. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
555 |
* Seeking will be done so that the point from which all active streams |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
556 |
* can be presented successfully will be closest to ts and within min/max_ts. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
557 |
* Active streams are all streams that have AVStream.discard < AVDISCARD_ALL. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
558 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
559 |
int (*read_seek2)(struct AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
560 |
} AVInputFormat; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
561 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
562 |
* @} |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
563 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
564 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
565 |
enum AVStreamParseType { |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
566 |
AVSTREAM_PARSE_NONE, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
567 |
AVSTREAM_PARSE_FULL, /**< full parsing and repack */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
568 |
AVSTREAM_PARSE_HEADERS, /**< Only parse headers, do not repack. */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
569 |
AVSTREAM_PARSE_TIMESTAMPS, /**< full parsing and interpolation of timestamps for frames not starting on a packet boundary */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
570 |
AVSTREAM_PARSE_FULL_ONCE, /**< full parsing and repack of the first frame only, only implemented for H.264 currently */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
571 |
}; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
572 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
573 |
typedef struct AVIndexEntry { |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
574 |
int64_t pos; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
575 |
int64_t timestamp; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
576 |
#define AVINDEX_KEYFRAME 0x0001 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
577 |
int flags:2; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
578 |
int size:30; //Yeah, trying to keep the size of this small to reduce memory requirements (it is 24 vs. 32 bytes due to possible 8-byte alignment). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
579 |
int min_distance; /**< Minimum distance between this and the previous keyframe, used to avoid unneeded searching. */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
580 |
} AVIndexEntry; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
581 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
582 |
#define AV_DISPOSITION_DEFAULT 0x0001 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
583 |
#define AV_DISPOSITION_DUB 0x0002 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
584 |
#define AV_DISPOSITION_ORIGINAL 0x0004 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
585 |
#define AV_DISPOSITION_COMMENT 0x0008 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
586 |
#define AV_DISPOSITION_LYRICS 0x0010 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
587 |
#define AV_DISPOSITION_KARAOKE 0x0020 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
588 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
589 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
590 |
* Track should be used during playback by default. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
591 |
* Useful for subtitle track that should be displayed |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
592 |
* even when user did not explicitly ask for subtitles. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
593 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
594 |
#define AV_DISPOSITION_FORCED 0x0040 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
595 |
#define AV_DISPOSITION_HEARING_IMPAIRED 0x0080 /**< stream for hearing impaired audiences */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
596 |
#define AV_DISPOSITION_VISUAL_IMPAIRED 0x0100 /**< stream for visual impaired audiences */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
597 |
#define AV_DISPOSITION_CLEAN_EFFECTS 0x0200 /**< stream without voice */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
598 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
599 |
* The stream is stored in the file as an attached picture/"cover art" (e.g. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
600 |
* APIC frame in ID3v2). The single packet associated with it will be returned |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
601 |
* among the first few packets read from the file unless seeking takes place. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
602 |
* It can also be accessed at any time in AVStream.attached_pic. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
603 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
604 |
#define AV_DISPOSITION_ATTACHED_PIC 0x0400 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
605 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
606 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
607 |
* Stream structure. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
608 |
* New fields can be added to the end with minor version bumps. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
609 |
* Removal, reordering and changes to existing fields require a major |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
610 |
* version bump. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
611 |
* sizeof(AVStream) must not be used outside libav*. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
612 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
613 |
typedef struct AVStream { |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
614 |
int index; /**< stream index in AVFormatContext */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
615 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
616 |
* Format-specific stream ID. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
617 |
* decoding: set by libavformat |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
618 |
* encoding: set by the user |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
619 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
620 |
int id; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
621 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
622 |
* Codec context associated with this stream. Allocated and freed by |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
623 |
* libavformat. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
624 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
625 |
* - decoding: The demuxer exports codec information stored in the headers |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
626 |
* here. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
627 |
* - encoding: The user sets codec information, the muxer writes it to the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
628 |
* output. Mandatory fields as specified in AVCodecContext |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
629 |
* documentation must be set even if this AVCodecContext is |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
630 |
* not actually used for encoding. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
631 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
632 |
AVCodecContext *codec; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
633 |
#if FF_API_R_FRAME_RATE |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
634 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
635 |
* Real base framerate of the stream. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
636 |
* This is the lowest framerate with which all timestamps can be |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
637 |
* represented accurately (it is the least common multiple of all |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
638 |
* framerates in the stream). Note, this value is just a guess! |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
639 |
* For example, if the time base is 1/90000 and all frames have either |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
640 |
* approximately 3600 or 1800 timer ticks, then r_frame_rate will be 50/1. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
641 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
642 |
AVRational r_frame_rate; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
643 |
#endif |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
644 |
void *priv_data; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
645 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
646 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
647 |
* encoding: pts generation when outputting stream |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
648 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
649 |
struct AVFrac pts; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
650 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
651 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
652 |
* This is the fundamental unit of time (in seconds) in terms |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
653 |
* of which frame timestamps are represented. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
654 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
655 |
* decoding: set by libavformat |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
656 |
* encoding: set by libavformat in avformat_write_header. The muxer may use the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
657 |
* user-provided value of @ref AVCodecContext.time_base "codec->time_base" |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
658 |
* as a hint. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
659 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
660 |
AVRational time_base; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
661 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
662 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
663 |
* Decoding: pts of the first frame of the stream, in stream time base. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
664 |
* Only set this if you are absolutely 100% sure that the value you set |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
665 |
* it to really is the pts of the first frame. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
666 |
* This may be undefined (AV_NOPTS_VALUE). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
667 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
668 |
int64_t start_time; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
669 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
670 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
671 |
* Decoding: duration of the stream, in stream time base. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
672 |
* If a source file does not specify a duration, but does specify |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
673 |
* a bitrate, this value will be estimated from bitrate and file size. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
674 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
675 |
int64_t duration; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
676 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
677 |
int64_t nb_frames; ///< number of frames in this stream if known or 0 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
678 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
679 |
int disposition; /**< AV_DISPOSITION_* bit field */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
680 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
681 |
enum AVDiscard discard; ///< Selects which packets can be discarded at will and do not need to be demuxed. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
682 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
683 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
684 |
* sample aspect ratio (0 if unknown) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
685 |
* - encoding: Set by user. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
686 |
* - decoding: Set by libavformat. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
687 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
688 |
AVRational sample_aspect_ratio; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
689 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
690 |
AVDictionary *metadata; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
691 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
692 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
693 |
* Average framerate |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
694 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
695 |
AVRational avg_frame_rate; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
696 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
697 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
698 |
* For streams with AV_DISPOSITION_ATTACHED_PIC disposition, this packet |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
699 |
* will contain the attached picture. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
700 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
701 |
* decoding: set by libavformat, must not be modified by the caller. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
702 |
* encoding: unused |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
703 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
704 |
AVPacket attached_pic; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
705 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
706 |
/***************************************************************** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
707 |
* All fields below this line are not part of the public API. They |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
708 |
* may not be used outside of libavformat and can be changed and |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
709 |
* removed at will. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
710 |
* New public fields should be added right above. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
711 |
***************************************************************** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
712 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
713 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
714 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
715 |
* Stream information used internally by av_find_stream_info() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
716 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
717 |
#define MAX_STD_TIMEBASES (60*12+5) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
718 |
struct { |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
719 |
#if FF_API_R_FRAME_RATE |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
720 |
int64_t last_dts; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
721 |
int64_t duration_gcd; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
722 |
int duration_count; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
723 |
double duration_error[MAX_STD_TIMEBASES]; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
724 |
#endif |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
725 |
int nb_decoded_frames; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
726 |
int found_decoder; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
727 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
728 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
729 |
* Those are used for average framerate estimation. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
730 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
731 |
int64_t fps_first_dts; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
732 |
int fps_first_dts_idx; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
733 |
int64_t fps_last_dts; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
734 |
int fps_last_dts_idx; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
735 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
736 |
} *info; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
737 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
738 |
int pts_wrap_bits; /**< number of bits in pts (used for wrapping control) */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
739 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
740 |
// Timestamp generation support: |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
741 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
742 |
* Timestamp corresponding to the last dts sync point. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
743 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
744 |
* Initialized when AVCodecParserContext.dts_sync_point >= 0 and |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
745 |
* a DTS is received from the underlying container. Otherwise set to |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
746 |
* AV_NOPTS_VALUE by default. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
747 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
748 |
int64_t reference_dts; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
749 |
int64_t first_dts; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
750 |
int64_t cur_dts; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
751 |
int64_t last_IP_pts; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
752 |
int last_IP_duration; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
753 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
754 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
755 |
* Number of packets to buffer for codec probing |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
756 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
757 |
#define MAX_PROBE_PACKETS 2500 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
758 |
int probe_packets; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
759 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
760 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
761 |
* Number of frames that have been demuxed during av_find_stream_info() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
762 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
763 |
int codec_info_nb_frames; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
764 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
765 |
/* av_read_frame() support */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
766 |
enum AVStreamParseType need_parsing; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
767 |
struct AVCodecParserContext *parser; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
768 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
769 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
770 |
* last packet in packet_buffer for this stream when muxing. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
771 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
772 |
struct AVPacketList *last_in_packet_buffer; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
773 |
AVProbeData probe_data; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
774 |
#define MAX_REORDER_DELAY 16 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
775 |
int64_t pts_buffer[MAX_REORDER_DELAY+1]; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
776 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
777 |
AVIndexEntry *index_entries; /**< Only used if the format does not |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
778 |
support seeking natively. */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
779 |
int nb_index_entries; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
780 |
unsigned int index_entries_allocated_size; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
781 |
} AVStream; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
782 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
783 |
#define AV_PROGRAM_RUNNING 1 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
784 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
785 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
786 |
* New fields can be added to the end with minor version bumps. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
787 |
* Removal, reordering and changes to existing fields require a major |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
788 |
* version bump. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
789 |
* sizeof(AVProgram) must not be used outside libav*. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
790 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
791 |
typedef struct AVProgram { |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
792 |
int id; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
793 |
int flags; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
794 |
enum AVDiscard discard; ///< selects which program to discard and which to feed to the caller |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
795 |
unsigned int *stream_index; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
796 |
unsigned int nb_stream_indexes; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
797 |
AVDictionary *metadata; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
798 |
} AVProgram; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
799 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
800 |
#define AVFMTCTX_NOHEADER 0x0001 /**< signal that no header is present |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
801 |
(streams are added dynamically) */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
802 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
803 |
typedef struct AVChapter { |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
804 |
int id; ///< unique ID to identify the chapter |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
805 |
AVRational time_base; ///< time base in which the start/end timestamps are specified |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
806 |
int64_t start, end; ///< chapter start/end time in time_base units |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
807 |
AVDictionary *metadata; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
808 |
} AVChapter; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
809 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
810 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
811 |
* Format I/O context. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
812 |
* New fields can be added to the end with minor version bumps. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
813 |
* Removal, reordering and changes to existing fields require a major |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
814 |
* version bump. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
815 |
* sizeof(AVFormatContext) must not be used outside libav*, use |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
816 |
* avformat_alloc_context() to create an AVFormatContext. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
817 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
818 |
typedef struct AVFormatContext { |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
819 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
820 |
* A class for logging and AVOptions. Set by avformat_alloc_context(). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
821 |
* Exports (de)muxer private options if they exist. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
822 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
823 |
const AVClass *av_class; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
824 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
825 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
826 |
* Can only be iformat or oformat, not both at the same time. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
827 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
828 |
* decoding: set by avformat_open_input(). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
829 |
* encoding: set by the user. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
830 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
831 |
struct AVInputFormat *iformat; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
832 |
struct AVOutputFormat *oformat; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
833 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
834 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
835 |
* Format private data. This is an AVOptions-enabled struct |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
836 |
* if and only if iformat/oformat.priv_class is not NULL. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
837 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
838 |
void *priv_data; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
839 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
840 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
841 |
* I/O context. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
842 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
843 |
* decoding: either set by the user before avformat_open_input() (then |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
844 |
* the user must close it manually) or set by avformat_open_input(). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
845 |
* encoding: set by the user. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
846 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
847 |
* Do NOT set this field if AVFMT_NOFILE flag is set in |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
848 |
* iformat/oformat.flags. In such a case, the (de)muxer will handle |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
849 |
* I/O in some other way and this field will be NULL. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
850 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
851 |
AVIOContext *pb; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
852 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
853 |
/* stream info */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
854 |
int ctx_flags; /**< Format-specific flags, see AVFMTCTX_xx */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
855 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
856 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
857 |
* A list of all streams in the file. New streams are created with |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
858 |
* avformat_new_stream(). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
859 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
860 |
* decoding: streams are created by libavformat in avformat_open_input(). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
861 |
* If AVFMTCTX_NOHEADER is set in ctx_flags, then new streams may also |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
862 |
* appear in av_read_frame(). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
863 |
* encoding: streams are created by the user before avformat_write_header(). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
864 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
865 |
unsigned int nb_streams; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
866 |
AVStream **streams; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
867 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
868 |
char filename[1024]; /**< input or output filename */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
869 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
870 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
871 |
* Decoding: position of the first frame of the component, in |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
872 |
* AV_TIME_BASE fractional seconds. NEVER set this value directly: |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
873 |
* It is deduced from the AVStream values. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
874 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
875 |
int64_t start_time; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
876 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
877 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
878 |
* Decoding: duration of the stream, in AV_TIME_BASE fractional |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
879 |
* seconds. Only set this value if you know none of the individual stream |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
880 |
* durations and also do not set any of them. This is deduced from the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
881 |
* AVStream values if not set. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
882 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
883 |
int64_t duration; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
884 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
885 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
886 |
* Decoding: total stream bitrate in bit/s, 0 if not |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
887 |
* available. Never set it directly if the file_size and the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
888 |
* duration are known as Libav can compute it automatically. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
889 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
890 |
int bit_rate; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
891 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
892 |
unsigned int packet_size; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
893 |
int max_delay; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
894 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
895 |
int flags; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
896 |
#define AVFMT_FLAG_GENPTS 0x0001 ///< Generate missing pts even if it requires parsing future frames. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
897 |
#define AVFMT_FLAG_IGNIDX 0x0002 ///< Ignore index. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
898 |
#define AVFMT_FLAG_NONBLOCK 0x0004 ///< Do not block when reading packets from input. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
899 |
#define AVFMT_FLAG_IGNDTS 0x0008 ///< Ignore DTS on frames that contain both DTS & PTS |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
900 |
#define AVFMT_FLAG_NOFILLIN 0x0010 ///< Do not infer any values from other values, just return what is stored in the container |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
901 |
#define AVFMT_FLAG_NOPARSE 0x0020 ///< Do not use AVParsers, you also must set AVFMT_FLAG_NOFILLIN as the fillin code works on frames and no parsing -> no frames. Also seeking to frames can not work if parsing to find frame boundaries has been disabled |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
902 |
#define AVFMT_FLAG_NOBUFFER 0x0040 ///< Do not buffer frames when possible |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
903 |
#define AVFMT_FLAG_CUSTOM_IO 0x0080 ///< The caller has supplied a custom AVIOContext, don't avio_close() it. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
904 |
#define AVFMT_FLAG_DISCARD_CORRUPT 0x0100 ///< Discard frames marked corrupted |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
905 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
906 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
907 |
* decoding: size of data to probe; encoding: unused. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
908 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
909 |
unsigned int probesize; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
910 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
911 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
912 |
* decoding: maximum time (in AV_TIME_BASE units) during which the input should |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
913 |
* be analyzed in avformat_find_stream_info(). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
914 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
915 |
int max_analyze_duration; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
916 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
917 |
const uint8_t *key; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
918 |
int keylen; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
919 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
920 |
unsigned int nb_programs; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
921 |
AVProgram **programs; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
922 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
923 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
924 |
* Forced video codec_id. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
925 |
* Demuxing: Set by user. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
926 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
927 |
enum AVCodecID video_codec_id; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
928 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
929 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
930 |
* Forced audio codec_id. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
931 |
* Demuxing: Set by user. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
932 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
933 |
enum AVCodecID audio_codec_id; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
934 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
935 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
936 |
* Forced subtitle codec_id. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
937 |
* Demuxing: Set by user. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
938 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
939 |
enum AVCodecID subtitle_codec_id; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
940 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
941 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
942 |
* Maximum amount of memory in bytes to use for the index of each stream. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
943 |
* If the index exceeds this size, entries will be discarded as |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
944 |
* needed to maintain a smaller size. This can lead to slower or less |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
945 |
* accurate seeking (depends on demuxer). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
946 |
* Demuxers for which a full in-memory index is mandatory will ignore |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
947 |
* this. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
948 |
* muxing : unused |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
949 |
* demuxing: set by user |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
950 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
951 |
unsigned int max_index_size; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
952 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
953 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
954 |
* Maximum amount of memory in bytes to use for buffering frames |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
955 |
* obtained from realtime capture devices. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
956 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
957 |
unsigned int max_picture_buffer; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
958 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
959 |
unsigned int nb_chapters; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
960 |
AVChapter **chapters; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
961 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
962 |
AVDictionary *metadata; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
963 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
964 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
965 |
* Start time of the stream in real world time, in microseconds |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
966 |
* since the unix epoch (00:00 1st January 1970). That is, pts=0 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
967 |
* in the stream was captured at this real world time. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
968 |
* - encoding: Set by user. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
969 |
* - decoding: Unused. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
970 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
971 |
int64_t start_time_realtime; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
972 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
973 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
974 |
* decoding: number of frames used to probe fps |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
975 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
976 |
int fps_probe_size; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
977 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
978 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
979 |
* Error recognition; higher values will detect more errors but may |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
980 |
* misdetect some more or less valid parts as errors. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
981 |
* - encoding: unused |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
982 |
* - decoding: Set by user. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
983 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
984 |
int error_recognition; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
985 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
986 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
987 |
* Custom interrupt callbacks for the I/O layer. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
988 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
989 |
* decoding: set by the user before avformat_open_input(). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
990 |
* encoding: set by the user before avformat_write_header() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
991 |
* (mainly useful for AVFMT_NOFILE formats). The callback |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
992 |
* should also be passed to avio_open2() if it's used to |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
993 |
* open the file. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
994 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
995 |
AVIOInterruptCB interrupt_callback; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
996 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
997 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
998 |
* Flags to enable debugging. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
999 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1000 |
int debug; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1001 |
#define FF_FDEBUG_TS 0x0001 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1002 |
/***************************************************************** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1003 |
* All fields below this line are not part of the public API. They |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1004 |
* may not be used outside of libavformat and can be changed and |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1005 |
* removed at will. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1006 |
* New public fields should be added right above. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1007 |
***************************************************************** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1008 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1009 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1010 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1011 |
* This buffer is only needed when packets were already buffered but |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1012 |
* not decoded, for example to get the codec parameters in MPEG |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1013 |
* streams. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1014 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1015 |
struct AVPacketList *packet_buffer; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1016 |
struct AVPacketList *packet_buffer_end; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1017 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1018 |
/* av_seek_frame() support */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1019 |
int64_t data_offset; /**< offset of the first packet */ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1020 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1021 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1022 |
* Raw packets from the demuxer, prior to parsing and decoding. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1023 |
* This buffer is used for buffering packets until the codec can |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1024 |
* be identified, as parsing cannot be done without knowing the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1025 |
* codec. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1026 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1027 |
struct AVPacketList *raw_packet_buffer; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1028 |
struct AVPacketList *raw_packet_buffer_end; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1029 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1030 |
* Packets split by the parser get queued here. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1031 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1032 |
struct AVPacketList *parse_queue; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1033 |
struct AVPacketList *parse_queue_end; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1034 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1035 |
* Remaining size available for raw_packet_buffer, in bytes. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1036 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1037 |
#define RAW_PACKET_BUFFER_SIZE 2500000 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1038 |
int raw_packet_buffer_remaining_size; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1039 |
} AVFormatContext; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1040 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1041 |
typedef struct AVPacketList { |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1042 |
AVPacket pkt; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1043 |
struct AVPacketList *next; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1044 |
} AVPacketList; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1045 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1046 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1047 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1048 |
* @defgroup lavf_core Core functions |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1049 |
* @ingroup libavf |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1050 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1051 |
* Functions for querying libavformat capabilities, allocating core structures, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1052 |
* etc. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1053 |
* @{ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1054 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1055 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1056 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1057 |
* Return the LIBAVFORMAT_VERSION_INT constant. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1058 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1059 |
unsigned avformat_version(void); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1060 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1061 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1062 |
* Return the libavformat build-time configuration. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1063 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1064 |
const char *avformat_configuration(void); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1065 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1066 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1067 |
* Return the libavformat license. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1068 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1069 |
const char *avformat_license(void); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1070 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1071 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1072 |
* Initialize libavformat and register all the muxers, demuxers and |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1073 |
* protocols. If you do not call this function, then you can select |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1074 |
* exactly which formats you want to support. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1075 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1076 |
* @see av_register_input_format() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1077 |
* @see av_register_output_format() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1078 |
* @see av_register_protocol() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1079 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1080 |
void av_register_all(void); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1081 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1082 |
void av_register_input_format(AVInputFormat *format); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1083 |
void av_register_output_format(AVOutputFormat *format); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1084 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1085 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1086 |
* Do global initialization of network components. This is optional, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1087 |
* but recommended, since it avoids the overhead of implicitly |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1088 |
* doing the setup for each session. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1089 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1090 |
* Calling this function will become mandatory if using network |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1091 |
* protocols at some major version bump. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1092 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1093 |
int avformat_network_init(void); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1094 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1095 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1096 |
* Undo the initialization done by avformat_network_init. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1097 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1098 |
int avformat_network_deinit(void); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1099 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1100 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1101 |
* If f is NULL, returns the first registered input format, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1102 |
* if f is non-NULL, returns the next registered input format after f |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1103 |
* or NULL if f is the last one. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1104 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1105 |
AVInputFormat *av_iformat_next(AVInputFormat *f); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1106 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1107 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1108 |
* If f is NULL, returns the first registered output format, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1109 |
* if f is non-NULL, returns the next registered output format after f |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1110 |
* or NULL if f is the last one. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1111 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1112 |
AVOutputFormat *av_oformat_next(AVOutputFormat *f); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1113 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1114 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1115 |
* Allocate an AVFormatContext. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1116 |
* avformat_free_context() can be used to free the context and everything |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1117 |
* allocated by the framework within it. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1118 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1119 |
AVFormatContext *avformat_alloc_context(void); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1120 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1121 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1122 |
* Free an AVFormatContext and all its streams. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1123 |
* @param s context to free |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1124 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1125 |
void avformat_free_context(AVFormatContext *s); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1126 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1127 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1128 |
* Get the AVClass for AVFormatContext. It can be used in combination with |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1129 |
* AV_OPT_SEARCH_FAKE_OBJ for examining options. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1130 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1131 |
* @see av_opt_find(). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1132 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1133 |
const AVClass *avformat_get_class(void); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1134 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1135 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1136 |
* Add a new stream to a media file. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1137 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1138 |
* When demuxing, it is called by the demuxer in read_header(). If the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1139 |
* flag AVFMTCTX_NOHEADER is set in s.ctx_flags, then it may also |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1140 |
* be called in read_packet(). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1141 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1142 |
* When muxing, should be called by the user before avformat_write_header(). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1143 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1144 |
* @param c If non-NULL, the AVCodecContext corresponding to the new stream |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1145 |
* will be initialized to use this codec. This is needed for e.g. codec-specific |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1146 |
* defaults to be set, so codec should be provided if it is known. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1147 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1148 |
* @return newly created stream or NULL on error. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1149 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1150 |
AVStream *avformat_new_stream(AVFormatContext *s, AVCodec *c); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1151 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1152 |
AVProgram *av_new_program(AVFormatContext *s, int id); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1153 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1154 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1155 |
* @} |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1156 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1157 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1158 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1159 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1160 |
* @addtogroup lavf_decoding |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1161 |
* @{ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1162 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1163 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1164 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1165 |
* Find AVInputFormat based on the short name of the input format. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1166 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1167 |
AVInputFormat *av_find_input_format(const char *short_name); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1168 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1169 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1170 |
* Guess the file format. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1171 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1172 |
* @param is_opened Whether the file is already opened; determines whether |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1173 |
* demuxers with or without AVFMT_NOFILE are probed. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1174 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1175 |
AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1176 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1177 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1178 |
* Guess the file format. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1179 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1180 |
* @param is_opened Whether the file is already opened; determines whether |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1181 |
* demuxers with or without AVFMT_NOFILE are probed. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1182 |
* @param score_max A probe score larger that this is required to accept a |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1183 |
* detection, the variable is set to the actual detection |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1184 |
* score afterwards. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1185 |
* If the score is <= AVPROBE_SCORE_MAX / 4 it is recommended |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1186 |
* to retry with a larger probe buffer. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1187 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1188 |
AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1189 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1190 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1191 |
* Probe a bytestream to determine the input format. Each time a probe returns |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1192 |
* with a score that is too low, the probe buffer size is increased and another |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1193 |
* attempt is made. When the maximum probe size is reached, the input format |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1194 |
* with the highest score is returned. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1195 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1196 |
* @param pb the bytestream to probe |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1197 |
* @param fmt the input format is put here |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1198 |
* @param filename the filename of the stream |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1199 |
* @param logctx the log context |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1200 |
* @param offset the offset within the bytestream to probe from |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1201 |
* @param max_probe_size the maximum probe buffer size (zero for default) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1202 |
* @return 0 in case of success, a negative value corresponding to an |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1203 |
* AVERROR code otherwise |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1204 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1205 |
int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1206 |
const char *filename, void *logctx, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1207 |
unsigned int offset, unsigned int max_probe_size); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1208 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1209 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1210 |
* Open an input stream and read the header. The codecs are not opened. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1211 |
* The stream must be closed with av_close_input_file(). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1212 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1213 |
* @param ps Pointer to user-supplied AVFormatContext (allocated by avformat_alloc_context). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1214 |
* May be a pointer to NULL, in which case an AVFormatContext is allocated by this |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1215 |
* function and written into ps. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1216 |
* Note that a user-supplied AVFormatContext will be freed on failure. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1217 |
* @param filename Name of the stream to open. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1218 |
* @param fmt If non-NULL, this parameter forces a specific input format. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1219 |
* Otherwise the format is autodetected. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1220 |
* @param options A dictionary filled with AVFormatContext and demuxer-private options. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1221 |
* On return this parameter will be destroyed and replaced with a dict containing |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1222 |
* options that were not found. May be NULL. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1223 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1224 |
* @return 0 on success, a negative AVERROR on failure. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1225 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1226 |
* @note If you want to use custom IO, preallocate the format context and set its pb field. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1227 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1228 |
int avformat_open_input(AVFormatContext **ps, const char *filename, AVInputFormat *fmt, AVDictionary **options); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1229 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1230 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1231 |
* Read packets of a media file to get stream information. This |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1232 |
* is useful for file formats with no headers such as MPEG. This |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1233 |
* function also computes the real framerate in case of MPEG-2 repeat |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1234 |
* frame mode. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1235 |
* The logical file position is not changed by this function; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1236 |
* examined packets may be buffered for later processing. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1237 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1238 |
* @param ic media file handle |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1239 |
* @param options If non-NULL, an ic.nb_streams long array of pointers to |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1240 |
* dictionaries, where i-th member contains options for |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1241 |
* codec corresponding to i-th stream. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1242 |
* On return each dictionary will be filled with options that were not found. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1243 |
* @return >=0 if OK, AVERROR_xxx on error |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1244 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1245 |
* @note this function isn't guaranteed to open all the codecs, so |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1246 |
* options being non-empty at return is a perfectly normal behavior. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1247 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1248 |
* @todo Let the user decide somehow what information is needed so that |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1249 |
* we do not waste time getting stuff the user does not need. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1250 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1251 |
int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1252 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1253 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1254 |
* Find the "best" stream in the file. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1255 |
* The best stream is determined according to various heuristics as the most |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1256 |
* likely to be what the user expects. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1257 |
* If the decoder parameter is non-NULL, av_find_best_stream will find the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1258 |
* default decoder for the stream's codec; streams for which no decoder can |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1259 |
* be found are ignored. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1260 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1261 |
* @param ic media file handle |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1262 |
* @param type stream type: video, audio, subtitles, etc. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1263 |
* @param wanted_stream_nb user-requested stream number, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1264 |
* or -1 for automatic selection |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1265 |
* @param related_stream try to find a stream related (eg. in the same |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1266 |
* program) to this one, or -1 if none |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1267 |
* @param decoder_ret if non-NULL, returns the decoder for the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1268 |
* selected stream |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1269 |
* @param flags flags; none are currently defined |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1270 |
* @return the non-negative stream number in case of success, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1271 |
* AVERROR_STREAM_NOT_FOUND if no stream with the requested type |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1272 |
* could be found, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1273 |
* AVERROR_DECODER_NOT_FOUND if streams were found but no decoder |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1274 |
* @note If av_find_best_stream returns successfully and decoder_ret is not |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1275 |
* NULL, then *decoder_ret is guaranteed to be set to a valid AVCodec. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1276 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1277 |
int av_find_best_stream(AVFormatContext *ic, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1278 |
enum AVMediaType type, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1279 |
int wanted_stream_nb, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1280 |
int related_stream, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1281 |
AVCodec **decoder_ret, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1282 |
int flags); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1283 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1284 |
#if FF_API_READ_PACKET |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1285 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1286 |
* @deprecated use AVFMT_FLAG_NOFILLIN | AVFMT_FLAG_NOPARSE to read raw |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1287 |
* unprocessed packets |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1288 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1289 |
* Read a transport packet from a media file. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1290 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1291 |
* This function is obsolete and should never be used. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1292 |
* Use av_read_frame() instead. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1293 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1294 |
* @param s media file handle |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1295 |
* @param pkt is filled |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1296 |
* @return 0 if OK, AVERROR_xxx on error |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1297 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1298 |
attribute_deprecated |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1299 |
int av_read_packet(AVFormatContext *s, AVPacket *pkt); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1300 |
#endif |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1301 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1302 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1303 |
* Return the next frame of a stream. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1304 |
* This function returns what is stored in the file, and does not validate |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1305 |
* that what is there are valid frames for the decoder. It will split what is |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1306 |
* stored in the file into frames and return one for each call. It will not |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1307 |
* omit invalid data between valid frames so as to give the decoder the maximum |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1308 |
* information possible for decoding. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1309 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1310 |
* The returned packet is valid |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1311 |
* until the next av_read_frame() or until av_close_input_file() and |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1312 |
* must be freed with av_free_packet. For video, the packet contains |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1313 |
* exactly one frame. For audio, it contains an integer number of |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1314 |
* frames if each frame has a known fixed size (e.g. PCM or ADPCM |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1315 |
* data). If the audio frames have a variable size (e.g. MPEG audio), |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1316 |
* then it contains one frame. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1317 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1318 |
* pkt->pts, pkt->dts and pkt->duration are always set to correct |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1319 |
* values in AVStream.time_base units (and guessed if the format cannot |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1320 |
* provide them). pkt->pts can be AV_NOPTS_VALUE if the video format |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1321 |
* has B-frames, so it is better to rely on pkt->dts if you do not |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1322 |
* decompress the payload. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1323 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1324 |
* @return 0 if OK, < 0 on error or end of file |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1325 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1326 |
int av_read_frame(AVFormatContext *s, AVPacket *pkt); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1327 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1328 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1329 |
* Seek to the keyframe at timestamp. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1330 |
* 'timestamp' in 'stream_index'. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1331 |
* @param stream_index If stream_index is (-1), a default |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1332 |
* stream is selected, and timestamp is automatically converted |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1333 |
* from AV_TIME_BASE units to the stream specific time_base. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1334 |
* @param timestamp Timestamp in AVStream.time_base units |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1335 |
* or, if no stream is specified, in AV_TIME_BASE units. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1336 |
* @param flags flags which select direction and seeking mode |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1337 |
* @return >= 0 on success |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1338 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1339 |
int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1340 |
int flags); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1341 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1342 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1343 |
* Seek to timestamp ts. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1344 |
* Seeking will be done so that the point from which all active streams |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1345 |
* can be presented successfully will be closest to ts and within min/max_ts. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1346 |
* Active streams are all streams that have AVStream.discard < AVDISCARD_ALL. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1347 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1348 |
* If flags contain AVSEEK_FLAG_BYTE, then all timestamps are in bytes and |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1349 |
* are the file position (this may not be supported by all demuxers). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1350 |
* If flags contain AVSEEK_FLAG_FRAME, then all timestamps are in frames |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1351 |
* in the stream with stream_index (this may not be supported by all demuxers). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1352 |
* Otherwise all timestamps are in units of the stream selected by stream_index |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1353 |
* or if stream_index is -1, in AV_TIME_BASE units. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1354 |
* If flags contain AVSEEK_FLAG_ANY, then non-keyframes are treated as |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1355 |
* keyframes (this may not be supported by all demuxers). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1356 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1357 |
* @param stream_index index of the stream which is used as time base reference |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1358 |
* @param min_ts smallest acceptable timestamp |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1359 |
* @param ts target timestamp |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1360 |
* @param max_ts largest acceptable timestamp |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1361 |
* @param flags flags |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1362 |
* @return >=0 on success, error code otherwise |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1363 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1364 |
* @note This is part of the new seek API which is still under construction. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1365 |
* Thus do not use this yet. It may change at any time, do not expect |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1366 |
* ABI compatibility yet! |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1367 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1368 |
int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1369 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1370 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1371 |
* Start playing a network-based stream (e.g. RTSP stream) at the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1372 |
* current position. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1373 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1374 |
int av_read_play(AVFormatContext *s); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1375 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1376 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1377 |
* Pause a network-based stream (e.g. RTSP stream). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1378 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1379 |
* Use av_read_play() to resume it. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1380 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1381 |
int av_read_pause(AVFormatContext *s); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1382 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1383 |
#if FF_API_CLOSE_INPUT_FILE |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1384 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1385 |
* @deprecated use avformat_close_input() |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1386 |
* Close a media file (but not its codecs). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1387 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1388 |
* @param s media file handle |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1389 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1390 |
attribute_deprecated |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1391 |
void av_close_input_file(AVFormatContext *s); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1392 |
#endif |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1393 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1394 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1395 |
* Close an opened input AVFormatContext. Free it and all its contents |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1396 |
* and set *s to NULL. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1397 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1398 |
void avformat_close_input(AVFormatContext **s); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1399 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1400 |
* @} |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1401 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1402 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1403 |
#define AVSEEK_FLAG_BACKWARD 1 ///< seek backward |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1404 |
#define AVSEEK_FLAG_BYTE 2 ///< seeking based on position in bytes |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1405 |
#define AVSEEK_FLAG_ANY 4 ///< seek to any frame, even non-keyframes |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1406 |
#define AVSEEK_FLAG_FRAME 8 ///< seeking based on frame number |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1407 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1408 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1409 |
* @addtogroup lavf_encoding |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1410 |
* @{ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1411 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1412 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1413 |
* Allocate the stream private data and write the stream header to |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1414 |
* an output media file. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1415 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1416 |
* @param s Media file handle, must be allocated with avformat_alloc_context(). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1417 |
* Its oformat field must be set to the desired output format; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1418 |
* Its pb field must be set to an already openened AVIOContext. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1419 |
* @param options An AVDictionary filled with AVFormatContext and muxer-private options. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1420 |
* On return this parameter will be destroyed and replaced with a dict containing |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1421 |
* options that were not found. May be NULL. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1422 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1423 |
* @return 0 on success, negative AVERROR on failure. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1424 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1425 |
* @see av_opt_find, av_dict_set, avio_open, av_oformat_next. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1426 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1427 |
int avformat_write_header(AVFormatContext *s, AVDictionary **options); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1428 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1429 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1430 |
* Write a packet to an output media file. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1431 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1432 |
* The packet shall contain one audio or video frame. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1433 |
* The packet must be correctly interleaved according to the container |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1434 |
* specification, if not then av_interleaved_write_frame must be used. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1435 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1436 |
* @param s media file handle |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1437 |
* @param pkt The packet, which contains the stream_index, buf/buf_size, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1438 |
* dts/pts, ... |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1439 |
* This can be NULL (at any time, not just at the end), in |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1440 |
* order to immediately flush data buffered within the muxer, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1441 |
* for muxers that buffer up data internally before writing it |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1442 |
* to the output. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1443 |
* @return < 0 on error, = 0 if OK, 1 if flushed and there is no more data to flush |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1444 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1445 |
int av_write_frame(AVFormatContext *s, AVPacket *pkt); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1446 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1447 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1448 |
* Write a packet to an output media file ensuring correct interleaving. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1449 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1450 |
* The packet must contain one audio or video frame. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1451 |
* If the packets are already correctly interleaved, the application should |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1452 |
* call av_write_frame() instead as it is slightly faster. It is also important |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1453 |
* to keep in mind that completely non-interleaved input will need huge amounts |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1454 |
* of memory to interleave with this, so it is preferable to interleave at the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1455 |
* demuxer level. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1456 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1457 |
* @param s media file handle |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1458 |
* @param pkt The packet containing the data to be written. Libavformat takes |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1459 |
* ownership of the data and will free it when it sees fit using the packet's |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1460 |
* This can be NULL (at any time, not just at the end), to flush the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1461 |
* interleaving queues. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1462 |
* @ref AVPacket.destruct "destruct" field. The caller must not access the data |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1463 |
* after this function returns, as it may already be freed. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1464 |
* Packet's @ref AVPacket.stream_index "stream_index" field must be set to the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1465 |
* index of the corresponding stream in @ref AVFormatContext.streams |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1466 |
* "s.streams". |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1467 |
* It is very strongly recommended that timing information (@ref AVPacket.pts |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1468 |
* "pts", @ref AVPacket.dts "dts" @ref AVPacket.duration "duration") is set to |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1469 |
* correct values. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1470 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1471 |
* @return 0 on success, a negative AVERROR on error. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1472 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1473 |
int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1474 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1475 |
#if FF_API_INTERLEAVE_PACKET |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1476 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1477 |
* @deprecated this function was never meant to be called by the user |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1478 |
* programs. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1479 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1480 |
attribute_deprecated |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1481 |
int av_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1482 |
AVPacket *pkt, int flush); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1483 |
#endif |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1484 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1485 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1486 |
* Write the stream trailer to an output media file and free the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1487 |
* file private data. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1488 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1489 |
* May only be called after a successful call to avformat_write_header. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1490 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1491 |
* @param s media file handle |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1492 |
* @return 0 if OK, AVERROR_xxx on error |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1493 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1494 |
int av_write_trailer(AVFormatContext *s); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1495 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1496 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1497 |
* Return the output format in the list of registered output formats |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1498 |
* which best matches the provided parameters, or return NULL if |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1499 |
* there is no match. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1500 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1501 |
* @param short_name if non-NULL checks if short_name matches with the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1502 |
* names of the registered formats |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1503 |
* @param filename if non-NULL checks if filename terminates with the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1504 |
* extensions of the registered formats |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1505 |
* @param mime_type if non-NULL checks if mime_type matches with the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1506 |
* MIME type of the registered formats |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1507 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1508 |
AVOutputFormat *av_guess_format(const char *short_name, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1509 |
const char *filename, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1510 |
const char *mime_type); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1511 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1512 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1513 |
* Guess the codec ID based upon muxer and filename. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1514 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1515 |
enum AVCodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1516 |
const char *filename, const char *mime_type, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1517 |
enum AVMediaType type); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1518 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1519 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1520 |
* @} |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1521 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1522 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1523 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1524 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1525 |
* @defgroup lavf_misc Utility functions |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1526 |
* @ingroup libavf |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1527 |
* @{ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1528 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1529 |
* Miscelaneous utility functions related to both muxing and demuxing |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1530 |
* (or neither). |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1531 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1532 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1533 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1534 |
* Send a nice hexadecimal dump of a buffer to the specified file stream. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1535 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1536 |
* @param f The file stream pointer where the dump should be sent to. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1537 |
* @param buf buffer |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1538 |
* @param size buffer size |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1539 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1540 |
* @see av_hex_dump_log, av_pkt_dump2, av_pkt_dump_log2 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1541 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1542 |
void av_hex_dump(FILE *f, const uint8_t *buf, int size); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1543 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1544 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1545 |
* Send a nice hexadecimal dump of a buffer to the log. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1546 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1547 |
* @param avcl A pointer to an arbitrary struct of which the first field is a |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1548 |
* pointer to an AVClass struct. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1549 |
* @param level The importance level of the message, lower values signifying |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1550 |
* higher importance. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1551 |
* @param buf buffer |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1552 |
* @param size buffer size |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1553 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1554 |
* @see av_hex_dump, av_pkt_dump2, av_pkt_dump_log2 |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1555 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1556 |
void av_hex_dump_log(void *avcl, int level, const uint8_t *buf, int size); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1557 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1558 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1559 |
* Send a nice dump of a packet to the specified file stream. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1560 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1561 |
* @param f The file stream pointer where the dump should be sent to. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1562 |
* @param pkt packet to dump |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1563 |
* @param dump_payload True if the payload must be displayed, too. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1564 |
* @param st AVStream that the packet belongs to |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1565 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1566 |
void av_pkt_dump2(FILE *f, AVPacket *pkt, int dump_payload, AVStream *st); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1567 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1568 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1569 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1570 |
* Send a nice dump of a packet to the log. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1571 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1572 |
* @param avcl A pointer to an arbitrary struct of which the first field is a |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1573 |
* pointer to an AVClass struct. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1574 |
* @param level The importance level of the message, lower values signifying |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1575 |
* higher importance. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1576 |
* @param pkt packet to dump |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1577 |
* @param dump_payload True if the payload must be displayed, too. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1578 |
* @param st AVStream that the packet belongs to |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1579 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1580 |
void av_pkt_dump_log2(void *avcl, int level, AVPacket *pkt, int dump_payload, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1581 |
AVStream *st); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1582 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1583 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1584 |
* Get the AVCodecID for the given codec tag tag. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1585 |
* If no codec id is found returns AV_CODEC_ID_NONE. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1586 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1587 |
* @param tags list of supported codec_id-codec_tag pairs, as stored |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1588 |
* in AVInputFormat.codec_tag and AVOutputFormat.codec_tag |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1589 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1590 |
enum AVCodecID av_codec_get_id(const struct AVCodecTag * const *tags, unsigned int tag); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1591 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1592 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1593 |
* Get the codec tag for the given codec id id. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1594 |
* If no codec tag is found returns 0. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1595 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1596 |
* @param tags list of supported codec_id-codec_tag pairs, as stored |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1597 |
* in AVInputFormat.codec_tag and AVOutputFormat.codec_tag |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1598 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1599 |
unsigned int av_codec_get_tag(const struct AVCodecTag * const *tags, enum AVCodecID id); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1600 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1601 |
int av_find_default_stream_index(AVFormatContext *s); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1602 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1603 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1604 |
* Get the index for a specific timestamp. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1605 |
* @param flags if AVSEEK_FLAG_BACKWARD then the returned index will correspond |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1606 |
* to the timestamp which is <= the requested one, if backward |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1607 |
* is 0, then it will be >= |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1608 |
* if AVSEEK_FLAG_ANY seek to any frame, only keyframes otherwise |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1609 |
* @return < 0 if no such timestamp could be found |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1610 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1611 |
int av_index_search_timestamp(AVStream *st, int64_t timestamp, int flags); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1612 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1613 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1614 |
* Add an index entry into a sorted list. Update the entry if the list |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1615 |
* already contains it. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1616 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1617 |
* @param timestamp timestamp in the time base of the given stream |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1618 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1619 |
int av_add_index_entry(AVStream *st, int64_t pos, int64_t timestamp, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1620 |
int size, int distance, int flags); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1621 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1622 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1623 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1624 |
* Split a URL string into components. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1625 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1626 |
* The pointers to buffers for storing individual components may be null, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1627 |
* in order to ignore that component. Buffers for components not found are |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1628 |
* set to empty strings. If the port is not found, it is set to a negative |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1629 |
* value. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1630 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1631 |
* @param proto the buffer for the protocol |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1632 |
* @param proto_size the size of the proto buffer |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1633 |
* @param authorization the buffer for the authorization |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1634 |
* @param authorization_size the size of the authorization buffer |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1635 |
* @param hostname the buffer for the host name |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1636 |
* @param hostname_size the size of the hostname buffer |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1637 |
* @param port_ptr a pointer to store the port number in |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1638 |
* @param path the buffer for the path |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1639 |
* @param path_size the size of the path buffer |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1640 |
* @param url the URL to split |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1641 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1642 |
void av_url_split(char *proto, int proto_size, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1643 |
char *authorization, int authorization_size, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1644 |
char *hostname, int hostname_size, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1645 |
int *port_ptr, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1646 |
char *path, int path_size, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1647 |
const char *url); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1648 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1649 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1650 |
void av_dump_format(AVFormatContext *ic, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1651 |
int index, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1652 |
const char *url, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1653 |
int is_output); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1654 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1655 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1656 |
* Return in 'buf' the path with '%d' replaced by a number. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1657 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1658 |
* Also handles the '%0nd' format where 'n' is the total number |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1659 |
* of digits and '%%'. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1660 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1661 |
* @param buf destination buffer |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1662 |
* @param buf_size destination buffer size |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1663 |
* @param path numbered sequence string |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1664 |
* @param number frame number |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1665 |
* @return 0 if OK, -1 on format error |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1666 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1667 |
int av_get_frame_filename(char *buf, int buf_size, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1668 |
const char *path, int number); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1669 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1670 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1671 |
* Check whether filename actually is a numbered sequence generator. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1672 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1673 |
* @param filename possible numbered sequence string |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1674 |
* @return 1 if a valid numbered sequence string, 0 otherwise |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1675 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1676 |
int av_filename_number_test(const char *filename); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1677 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1678 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1679 |
* Generate an SDP for an RTP session. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1680 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1681 |
* @param ac array of AVFormatContexts describing the RTP streams. If the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1682 |
* array is composed by only one context, such context can contain |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1683 |
* multiple AVStreams (one AVStream per RTP stream). Otherwise, |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1684 |
* all the contexts in the array (an AVCodecContext per RTP stream) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1685 |
* must contain only one AVStream. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1686 |
* @param n_files number of AVCodecContexts contained in ac |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1687 |
* @param buf buffer where the SDP will be stored (must be allocated by |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1688 |
* the caller) |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1689 |
* @param size the size of the buffer |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1690 |
* @return 0 if OK, AVERROR_xxx on error |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1691 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1692 |
int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1693 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1694 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1695 |
* Return a positive value if the given filename has one of the given |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1696 |
* extensions, 0 otherwise. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1697 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1698 |
* @param extensions a comma-separated list of filename extensions |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1699 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1700 |
int av_match_ext(const char *filename, const char *extensions); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1701 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1702 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1703 |
* Test if the given container can store a codec. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1704 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1705 |
* @param std_compliance standards compliance level, one of FF_COMPLIANCE_* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1706 |
* |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1707 |
* @return 1 if codec with ID codec_id can be stored in ofmt, 0 if it cannot. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1708 |
* A negative number if this information is not available. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1709 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1710 |
int avformat_query_codec(AVOutputFormat *ofmt, enum AVCodecID codec_id, int std_compliance); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1711 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1712 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1713 |
* @defgroup riff_fourcc RIFF FourCCs |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1714 |
* @{ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1715 |
* Get the tables mapping RIFF FourCCs to libavcodec AVCodecIDs. The tables are |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1716 |
* meant to be passed to av_codec_get_id()/av_codec_get_tag() as in the |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1717 |
* following code: |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1718 |
* @code |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1719 |
* uint32_t tag = MKTAG('H', '2', '6', '4'); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1720 |
* const struct AVCodecTag *table[] = { avformat_get_riff_video_tags(), 0 }; |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1721 |
* enum AVCodecID id = av_codec_get_id(table, tag); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1722 |
* @endcode |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1723 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1724 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1725 |
* @return the table mapping RIFF FourCCs for video to libavcodec AVCodecID. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1726 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1727 |
const struct AVCodecTag *avformat_get_riff_video_tags(void); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1728 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1729 |
* @return the table mapping RIFF FourCCs for audio to AVCodecID. |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1730 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1731 |
const struct AVCodecTag *avformat_get_riff_audio_tags(void); |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1732 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1733 |
* @} |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1734 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1735 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1736 |
/** |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1737 |
* @} |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1738 |
*/ |
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1739 |
|
7ac83d79b897
support video recording on windows with automation and headers
koda
parents:
diff
changeset
|
1740 |
#endif /* AVFORMAT_AVFORMAT_H */ |