This commit changes many aspect of our cmake build system
- shared libraries are compiled by default:
* this modifies RPATH of unix executables;
* this will prevent a lot of linking issues, esp. from pascal world;
* the old behaviour (static libs) is still available with -DBUILD_SHARED_LIBS=off;
* of course in this case you have to provide the full list of dependencies with FPFLAGS and CMAKE_C_FLAGS;
- pascal is now fully integrated with cmake, meaning you can just do add_sources and use CMAKE_Pascal_FLAGS:
* some of the language features are only partially implemented, for example .inc files will not get rebuilt if you modify them;
* target_link_libraries for pascal targets is just dummy as linking is determined within pascal files;
* universal builds for osx are not available any more;
- bundled libraries and system libraries are addressed using the target name:
* this avoids depedency tracking;
* this allows to name output as we wish.
/********************************************************************
* *
* THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE. *
* *
* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
* *
* THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002 *
* BY THE Xiph.Org FOUNDATION http://www.xiph.org/ *
* *
********************************************************************
function: basic shared codebook operations
********************************************************************/
#ifndef _V_CODEBOOK_H_
#define _V_CODEBOOK_H_
#include "ogg.h"
/* This structure encapsulates huffman and VQ style encoding books; it
doesn't do anything specific to either.
valuelist/quantlist are nonNULL (and q_* significant) only if
there's entry->value mapping to be done.
If encode-side mapping must be done (and thus the entry needs to be
hunted), the auxiliary encode pointer will point to a decision
tree. This is true of both VQ and huffman, but is mostly useful
with VQ.
*/
typedef struct static_codebook{
long dim; /* codebook dimensions (elements per vector) */
long entries; /* codebook entries */
long *lengthlist; /* codeword lengths in bits */
/* mapping ***************************************************************/
int maptype; /* 0=none
1=implicitly populated values from map column
2=listed arbitrary values */
/* The below does a linear, single monotonic sequence mapping. */
long q_min; /* packed 32 bit float; quant value 0 maps to minval */
long q_delta; /* packed 32 bit float; val 1 - val 0 == delta */
int q_quant; /* bits: 0 < quant <= 16 */
int q_sequencep; /* bitflag */
long *quantlist; /* map == 1: (int)(entries^(1/dim)) element column map
map == 2: list of dim*entries quantized entry vals
*/
} static_codebook;
typedef struct codebook{
long dim; /* codebook dimensions (elements per vector) */
long entries; /* codebook entries */
long used_entries; /* populated codebook entries */
/* the below are ordered by bitreversed codeword and only used
entries are populated */
int binarypoint;
ogg_int32_t *valuelist; /* list of dim*entries actual entry values */
ogg_uint32_t *codelist; /* list of bitstream codewords for each entry */
int *dec_index;
char *dec_codelengths;
ogg_uint32_t *dec_firsttable;
int dec_firsttablen;
int dec_maxlength;
long q_min; /* packed 32 bit float; quant value 0 maps to minval */
long q_delta; /* packed 32 bit float; val 1 - val 0 == delta */
} codebook;
extern void vorbis_staticbook_clear(static_codebook *b);
extern void vorbis_staticbook_destroy(static_codebook *b);
extern int vorbis_book_init_decode(codebook *dest,const static_codebook *source);
extern void vorbis_book_clear(codebook *b);
extern long _book_maptype1_quantvals(const static_codebook *b);
extern int vorbis_staticbook_unpack(oggpack_buffer *b,static_codebook *c);
extern long vorbis_book_decode(codebook *book, oggpack_buffer *b);
extern long vorbis_book_decodevs_add(codebook *book, ogg_int32_t *a,
oggpack_buffer *b,int n,int point);
extern long vorbis_book_decodev_set(codebook *book, ogg_int32_t *a,
oggpack_buffer *b,int n,int point);
extern long vorbis_book_decodev_add(codebook *book, ogg_int32_t *a,
oggpack_buffer *b,int n,int point);
extern long vorbis_book_decodevv_add(codebook *book, ogg_int32_t **a,
long off,int ch,
oggpack_buffer *b,int n,int point);
extern int _ilog(unsigned int v);
#endif