QTfrontend/net/recorder.cpp
author Wuzzy <Wuzzy2@mail.ru>
Wed, 08 Aug 2018 18:36:12 +0200
changeset 13649 1b536e268519
parent 13497 c7df0d96da81
child 14604 b86e6e4f3c58
permissions -rw-r--r--
Fix frontend crash when rapidly aborting many active video encodings. Fixes bug #595
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/*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program 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
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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#include <QString>
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#include <QByteArray>
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#include "recorder.h"
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#include "gameuiconfig.h"
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#include "hwconsts.h"
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#include "game.h"
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#include "LibavInteraction.h"
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// Encoding is memory expensive process, so we need to limit maximum number
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// of simultaneous encoders.
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static const int maxRecorders = 3;
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static int numRecorders = 0;
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static QList<HWRecorder*> queue;
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HWRecorder::HWRecorder(GameUIConfig * config, const QString &prefix) :
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    TCPBase(false)
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{
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    this->config = config;
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    this->prefix = prefix;
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    item = 0;
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    finished = false;
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    aborted = false;
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    name = prefix + "." + LibavInteraction::instance().getExtension(config->AVFormat());
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}
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HWRecorder::~HWRecorder()
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{
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    emit encodingFinished(finished);
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    if (queue.empty())
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        numRecorders--;
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    else
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        queue.takeFirst()->Start(false);
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}
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void HWRecorder::onClientDisconnect()
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{
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}
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void HWRecorder::onClientRead()
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{
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    quint8 msglen;
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    quint32 bufsize;
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    while (!readbuffer.isEmpty() && ((bufsize = readbuffer.size()) > 0) &&
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            ((msglen = readbuffer.data()[0]) < bufsize))
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    {
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        QByteArray msg = readbuffer.left(msglen + 1);
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        readbuffer.remove(0, msglen + 1);
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        switch (msg.at(1))
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        {
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        case '?':
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            SendIPC("!");
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            break;
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        case 'p':
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            emit onProgress((quint8(msg.at(2))*256.0 + quint8(msg.at(3)))*0.0001);
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            break;
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        case 'v':
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            finished = true;
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            break;
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        }
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    }
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}
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void HWRecorder::EncodeVideo(const QByteArray & record)
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{
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    toSendBuf = record;
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    toSendBuf.replace(QByteArray("\x02TD"), QByteArray("\x02TV"));
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    toSendBuf.replace(QByteArray("\x02TL"), QByteArray("\x02TV"));
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    toSendBuf.replace(QByteArray("\x02TN"), QByteArray("\x02TV"));
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    toSendBuf.replace(QByteArray("\x02TS"), QByteArray("\x02TV"));
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    if (numRecorders < maxRecorders)
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    {
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        numRecorders++;
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        Start(false); // run engine
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    }
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    else
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        queue.push_back(this);
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}
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QStringList HWRecorder::getArguments()
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{
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    QStringList arguments;
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    QRect resolution = config->rec_Resolution();
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    QString nick = config->netNick().toUtf8().toBase64();
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    arguments << "--internal";
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    arguments << "--port";
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    arguments << QString("%1").arg(ipc_port);
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    arguments << "--prefix";
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    arguments << datadir->absolutePath();
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    arguments << "--user-prefix";
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    arguments << cfgdir->absolutePath();
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    arguments << "--locale";
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    arguments << HWGame::tr("en.txt");
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    arguments << "--frame-interval";
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    arguments << QString::number(config->timerInterval());
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    arguments << "--width";
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    arguments << QString::number(resolution.width());
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    arguments << "--height";
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    arguments << QString::number(resolution.height());
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    arguments << "--nosound";
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    arguments << "--raw-quality";
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    arguments << QString::number(config->translateQuality());
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    arguments << "--stereo";
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    arguments << QString::number(config->stereoMode());
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    arguments << "--nomusic";
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    arguments << "--volume";
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    arguments << "0";
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    if (config->isAltDamageEnabled())
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        arguments << "--altdmg";
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    if (!nick.isEmpty()) {
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        arguments << "--nick";
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        arguments << nick;
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    }
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    arguments << "--recorder";
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    arguments << QString::number(config->rec_Framerate()); //cVideoFramerateNum
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    arguments << "1"; //cVideoFramerateDen
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    arguments << prefix;
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    arguments << config->AVFormat();
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    arguments << config->videoCodec();
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// Could use a field to use quality instead. maybe quality could override bitrate - or just pass (and set) both.
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// The library does support using both at once after all.
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    arguments << QString::number(config->rec_Bitrate()*1024);
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    if (config->recordAudio() && (config->isSoundEnabled() || config->isMusicEnabled()))
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        arguments << config->audioCodec();
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    else
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        arguments << "no";
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    return arguments;
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}
9800
169fbb968bb3 No idea what this is doing, seems to allow recorder instance to not block further engine starts while it is doing its job.
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169fbb968bb3 No idea what this is doing, seems to allow recorder instance to not block further engine starts while it is doing its job.
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bool HWRecorder::simultaneousRun()
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{
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    return true;
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}
13649
1b536e268519 Fix frontend crash when rapidly aborting many active video encodings. Fixes bug 595
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void HWRecorder::abort()
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{
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    queue.removeOne(this);
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    aborted = true;
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    deleteLater();
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   162
}