int FormatContext::avioInterruptCb(void *opaque)
{
if (!opaque)
return 0;
FormatContext *ctx = static_cast<FormatContext*>(opaque);
return ctx->avioInterruptCb();
}
void FFDemux::addFormatContext(QString url, const QString ¶m)
{
FormatContext *fmtCtx = new FormatContext(reconnectStreamed);
{
QMutexLocker mL(&mutex);
formatContexts.append(fmtCtx);
}
if (!url.contains("://"))
url.prepend("file://");
if (fmtCtx->open(url, param))
streams_info.append(fmtCtx->streamsInfo);
else
{
{
QMutexLocker mL(&mutex);
formatContexts.erase(formatContexts.end() - 1);
}
delete fmtCtx;
}
}
FileProperties::FileProperties( const FormatContext& formatContext )
: _formatContext( &formatContext.getAVFormatContext() )
, _videoStreams()
, _audioStreams()
, _dataStreams()
, _subtitleStreams()
, _attachementStreams()
, _unknownStreams()
{
if( _formatContext )
detail::fillMetadataDictionnary( _formatContext->metadata, _metadatas );
}
FileProperties::FileProperties(const FormatContext& formatContext)
: _formatContext(&formatContext)
, _avFormatContext(&formatContext.getAVFormatContext())
, _videoStreams()
, _audioStreams()
, _dataStreams()
, _subtitleStreams()
, _attachementStreams()
, _unknownStreams()
{
if(_avFormatContext)
detail::fillMetadataDictionnary(_avFormatContext->metadata, _metadatas);
NoDisplayProgress progress;
extractStreamProperties(progress, eAnalyseLevelHeader);
}
int main(int argc, char **argv)
{
if (argc < 3)
return 1;
av::init();
av::setFFmpegLoggingLevel(AV_LOG_DEBUG);
string uri {argv[1]};
string out {argv[2]};
error_code ec;
//
// INPUT
//
FormatContext ictx;
ssize_t videoStream = -1;
VideoDecoderContext vdec;
Stream vst;
int count = 0;
ictx.openInput(uri, ec);
if (ec) {
cerr << "Can't open input\n";
return 1;
}
ictx.findStreamInfo(ec);
if (ec) {
cerr << "Can't find streams: " << ec << ", " << ec.message() << endl;
return 1;
}
for (size_t i = 0; i < ictx.streamsCount(); ++i) {
auto st = ictx.stream(i);
if (st.mediaType() == AVMEDIA_TYPE_VIDEO) {
videoStream = i;
vst = st;
break;
}
}
if (vst.isNull()) {
cerr << "Video stream not found\n";
return 1;
}
if (vst.isValid()) {
vdec = VideoDecoderContext(vst);
vdec.setRefCountedFrames(true);
cerr << "PTR: " << (void*)vdec.raw()->codec << endl;
vdec.open(Codec(), ec);
if (ec) {
cerr << "Can't open decoder\n";
return 1;
}
}
//
// OUTPUT
//
OutputFormat ofrmt;
FormatContext octx;
ofrmt.setFormat("flv", out);
octx.setFormat(ofrmt);
Codec ocodec = findEncodingCodec(ofrmt);
Stream ost = octx.addStream(ocodec);
VideoEncoderContext encoder {ost};
// Settings
encoder.setWidth(vdec.width() * 2);
encoder.setHeight(vdec.height() * 2);
encoder.setPixelFormat(vdec.pixelFormat());
encoder.setTimeBase(Rational{1, 1000});
encoder.setBitRate(vdec.bitRate());
encoder.addFlags(octx.outputFormat().isFlags(AVFMT_GLOBALHEADER) ? CODEC_FLAG_GLOBAL_HEADER : 0);
ost.setFrameRate(vst.frameRate());
ost.setTimeBase(encoder.timeBase());
octx.openOutput(out, ec);
if (ec) {
cerr << "Can't open output\n";
return 1;
}
encoder.open(ec);
if (ec) {
cerr << "Can't opent encoder\n";
return 1;
}
octx.dump();
octx.writeHeader();
octx.flush();
//
// RESCALER
//
VideoRescaler rescaler; // Rescaler will be inited on demaind
//
// PROCESS
//
while (true) {
// READING
Packet pkt = ictx.readPacket(ec);
if (ec)
{
clog << "Packet reading error: " << ec << ", " << ec.message() << endl;
break;
}
// EOF
if (!pkt)
{
break;
}
if (pkt.streamIndex() != videoStream) {
continue;
}
clog << "Read packet: pts=" << pkt.pts() << ", dts=" << pkt.dts() << " / " << pkt.pts().seconds() << " / " << pkt.timeBase() << " / st: " << pkt.streamIndex() << endl;
// DECODING
auto inpFrame = vdec.decode(pkt, ec);
count++;
if (count > 200)
break;
if (ec) {
cerr << "Decoding error: " << ec << endl;
return 1;
} else if (!inpFrame) {
cerr << "Empty frame\n";
continue;
}
clog << "inpFrame: pts=" << inpFrame.pts() << " / " << inpFrame.pts().seconds() << " / " << inpFrame.timeBase() << ", " << inpFrame.width() << "x" << inpFrame.height() << ", size=" << inpFrame.size() << ", ref=" << inpFrame.isReferenced() << ":" << inpFrame.refCount() << " / type: " << inpFrame.pictureType() << endl;
// Change timebase
inpFrame.setTimeBase(encoder.timeBase());
inpFrame.setStreamIndex(0);
inpFrame.setPictureType();
clog << "inpFrame: pts=" << inpFrame.pts() << " / " << inpFrame.pts().seconds() << " / " << inpFrame.timeBase() << ", " << inpFrame.width() << "x" << inpFrame.height() << ", size=" << inpFrame.size() << ", ref=" << inpFrame.isReferenced() << ":" << inpFrame.refCount() << " / type: " << inpFrame.pictureType() << endl;
// SCALE
//VideoFrame outFrame {encoder.pixelFormat(), encoder.width(), encoder.height()};
//rescaler.rescale(outFrame, inpFrame, ec);
auto outFrame = rescaler.rescale(inpFrame, ec);
if (ec) {
cerr << "Can't rescale frame: " << ec << ", " << ec.message() << endl;
return 1;
}
clog << "outFrame: pts=" << outFrame.pts()
<< " / " << outFrame.pts().seconds()
<< " / " << outFrame.timeBase()
<< ", " << outFrame.width() << "x" << outFrame.height()
<< ", size=" << outFrame.size()
<< ", ref=" << outFrame.isReferenced() << ":" << outFrame.refCount()
<< " / type: " << outFrame.pictureType() << endl;
// ENCODE
Packet opkt = encoder.encode(outFrame, ec);
if (ec) {
cerr << "Encoding error: " << ec << endl;
return 1;
} else if (!opkt) {
cerr << "Empty packet\n";
continue;
}
// Only one output stream
opkt.setStreamIndex(0);
clog << "Write packet: pts=" << opkt.pts() << ", dts=" << opkt.dts() << " / " << opkt.pts().seconds() << " / " << opkt.timeBase() << " / st: " << opkt.streamIndex() << endl;
octx.writePacket(opkt, ec);
if (ec) {
cerr << "Error write packet: " << ec << ", " << ec.message() << endl;
return 1;
}
}
octx.writeTrailer();
ictx.close();
}
int main(int argc, char **argv)
{
if (argc < 3)
return 1;
av::init();
av::setFFmpegLoggingLevel(AV_LOG_TRACE);
string uri (argv[1]);
string out (argv[2]);
ssize_t audioStream = -1;
AudioDecoderContext adec;
Stream ast;
error_code ec;
int count = 0;
{
//
// INPUT
//
FormatContext ictx;
ictx.openInput(uri, ec);
if (ec) {
cerr << "Can't open input\n";
return 1;
}
ictx.findStreamInfo();
for (size_t i = 0; i < ictx.streamsCount(); ++i) {
auto st = ictx.stream(i);
if (st.isAudio()) {
audioStream = i;
ast = st;
break;
}
}
cerr << audioStream << endl;
if (ast.isNull()) {
cerr << "Audio stream not found\n";
return 1;
}
if (ast.isValid()) {
adec = AudioDecoderContext(ast);
//Codec codec = findDecodingCodec(adec.raw()->codec_id);
//adec.setCodec(codec);
//adec.setRefCountedFrames(true);
adec.open(ec);
if (ec) {
cerr << "Can't open codec\n";
return 1;
}
}
//
// OUTPUT
//
OutputFormat ofmt;
FormatContext octx;
ofmt = av::guessOutputFormat(out, out);
clog << "Output format: " << ofmt.name() << " / " << ofmt.longName() << '\n';
octx.setFormat(ofmt);
Codec ocodec = av::findEncodingCodec(ofmt, false);
Stream ost = octx.addStream(ocodec);
AudioEncoderContext enc (ost);
clog << ocodec.name() << " / " << ocodec.longName() << ", audio: " << (ocodec.type()==AVMEDIA_TYPE_AUDIO) << '\n';
auto sampleFmts = ocodec.supportedSampleFormats();
auto sampleRates = ocodec.supportedSamplerates();
auto layouts = ocodec.supportedChannelLayouts();
clog << "Supported sample formats:\n";
for (const auto &fmt : sampleFmts) {
clog << " " << av_get_sample_fmt_name(fmt) << '\n';
}
clog << "Supported sample rates:\n";
for (const auto &rate : sampleRates) {
clog << " " << rate << '\n';
}
clog << "Supported sample layouts:\n";
for (const auto &lay : layouts) {
char buf[128] = {0};
av_get_channel_layout_string(buf,
sizeof(buf),
av_get_channel_layout_nb_channels(lay),
lay);
clog << " " << buf << '\n';
}
//return 0;
// Settings
#if 1
enc.setSampleRate(48000);
enc.setSampleFormat(sampleFmts[0]);
// Layout
//enc.setChannelLayout(adec.channelLayout());
enc.setChannelLayout(AV_CH_LAYOUT_STEREO);
//enc.setChannelLayout(AV_CH_LAYOUT_MONO);
enc.setTimeBase(Rational(1, enc.sampleRate()));
enc.setBitRate(adec.bitRate());
#else
enc.setSampleRate(adec.sampleRate());
enc.setSampleFormat(adec.sampleFormat());
enc.setChannelLayout(adec.channelLayout());
enc.setTimeBase(adec.timeBase());
enc.setBitRate(adec.bitRate());
#endif
octx.openOutput(out, ec);
if (ec) {
cerr << "Can't open output\n";
return 1;
}
enc.open(ec);
if (ec) {
cerr << "Can't open encoder\n";
return 1;
}
clog << "Encoder frame size: " << enc.frameSize() << '\n';
octx.dump();
octx.writeHeader();
octx.flush();
//
// RESAMPLER
//
AudioResampler resampler(enc.channelLayout(), enc.sampleRate(), enc.sampleFormat(),
adec.channelLayout(), adec.sampleRate(), adec.sampleFormat());
//
// PROCESS
//
while (true) {
Packet pkt = ictx.readPacket(ec);
if (ec)
{
clog << "Packet reading error: " << ec << ", " << ec.message() << endl;
break;
}
if (pkt.streamIndex() != audioStream) {
continue;
}
clog << "Read packet: isNull=" << (bool)!pkt << ", " << pkt.pts() << "(nopts:" << pkt.pts().isNoPts() << ")" << " / " << pkt.pts().seconds() << " / " << pkt.timeBase() << " / st: " << pkt.streamIndex() << endl;
#if 0
if (pkt.pts() == av::NoPts && pkt.timeBase() == Rational())
{
clog << "Skip invalid timestamp packet: data=" << (void*)pkt.data()
<< ", size=" << pkt.size()
<< ", flags=" << pkt.flags() << " (corrupt:" << (pkt.flags() & AV_PKT_FLAG_CORRUPT) << ";key:" << (pkt.flags() & AV_PKT_FLAG_KEY) << ")"
<< ", side_data=" << (void*)pkt.raw()->side_data
<< ", side_data_count=" << pkt.raw()->side_data_elems
<< endl;
//continue;
}
#endif
auto samples = adec.decode(pkt, ec);
count++;
//if (count > 200)
// break;
if (ec) {
cerr << "Decode error: " << ec << ", " << ec.message() << endl;
return 1;
} else if (!samples) {
cerr << "Empty samples set\n";
//if (!pkt) // decoder flushed here
// break;
//continue;
}
clog << " Samples [in]: " << samples.samplesCount()
<< ", ch: " << samples.channelsCount()
<< ", freq: " << samples.sampleRate()
<< ", name: " << samples.channelsLayoutString()
<< ", pts: " << samples.pts().seconds()
<< ", ref=" << samples.isReferenced() << ":" << samples.refCount()
<< endl;
// Empty samples set should not be pushed to the resampler, but it is valid case for the
// end of reading: during samples empty, some cached data can be stored at the resampler
// internal buffer, so we should consume it.
if (samples)
{
resampler.push(samples, ec);
if (ec) {
clog << "Resampler push error: " << ec << ", text: " << ec.message() << endl;
continue;
}
}
// Pop resampler data
bool getAll = !samples;
while (true) {
AudioSamples ouSamples(enc.sampleFormat(),
enc.frameSize(),
enc.channelLayout(),
enc.sampleRate());
// Resample:
bool hasFrame = resampler.pop(ouSamples, getAll, ec);
if (ec) {
clog << "Resampling status: " << ec << ", text: " << ec.message() << endl;
break;
} else if (!hasFrame) {
break;
} else
clog << " Samples [ou]: " << ouSamples.samplesCount()
<< ", ch: " << ouSamples.channelsCount()
<< ", freq: " << ouSamples.sampleRate()
<< ", name: " << ouSamples.channelsLayoutString()
<< ", pts: " << ouSamples.pts().seconds()
<< ", ref=" << ouSamples.isReferenced() << ":" << ouSamples.refCount()
<< endl;
// ENCODE
ouSamples.setStreamIndex(0);
ouSamples.setTimeBase(enc.timeBase());
Packet opkt = enc.encode(ouSamples, ec);
if (ec) {
cerr << "Encoding error: " << ec << ", " << ec.message() << endl;
return 1;
} else if (!opkt) {
//cerr << "Empty packet\n";
continue;
}
opkt.setStreamIndex(0);
clog << "Write packet: pts=" << opkt.pts() << ", dts=" << opkt.dts() << " / " << opkt.pts().seconds() << " / " << opkt.timeBase() << " / st: " << opkt.streamIndex() << endl;
octx.writePacket(opkt, ec);
if (ec) {
cerr << "Error write packet: " << ec << ", " << ec.message() << endl;
return 1;
}
}
// For the first packets samples can be empty: decoder caching
if (!pkt && !samples)
break;
}
//
// Is resampler flushed?
//
cerr << "Delay: " << resampler.delay() << endl;
//
// Flush encoder queue
//
clog << "Flush encoder:\n";
while (true) {
AudioSamples null(nullptr);
Packet opkt = enc.encode(null, ec);
if (ec || !opkt)
break;
opkt.setStreamIndex(0);
clog << "Write packet: pts=" << opkt.pts() << ", dts=" << opkt.dts() << " / " << opkt.pts().seconds() << " / " << opkt.timeBase() << " / st: " << opkt.streamIndex() << endl;
octx.writePacket(opkt, ec);
if (ec) {
cerr << "Error write packet: " << ec << ", " << ec.message() << endl;
return 1;
}
}
octx.flush();
octx.writeTrailer();
}
}
Playlist::Entries FFDemux::fetchTracks(const QString &url, bool &ok)
{
if (url.contains("://{") || !url.startsWith("file://"))
return {};
const auto createFmtCtx = [&] {
FormatContext *fmtCtx = new FormatContext;
{
QMutexLocker mL(&mutex);
formatContexts.append(fmtCtx);
}
return fmtCtx;
};
const auto destroyFmtCtx = [&](FormatContext *fmtCtx) {
{
QMutexLocker mL(&mutex);
const int idx = formatContexts.indexOf(fmtCtx);
if (idx > -1)
formatContexts.remove(idx);
}
delete fmtCtx;
};
if (url.endsWith(".cue", Qt::CaseInsensitive))
{
QFile cue(url.mid(7));
if (cue.size() <= 0xFFFF && cue.open(QFile::ReadOnly | QFile::Text))
{
QList<QByteArray> data = Functions::textWithFallbackEncoding(cue.readAll()).split('\n');
QString title, performer, audioUrl;
double index0 = -1.0, index1 = -1.0;
QHash<int, QPair<double, double>> indexes;
Playlist::Entries entries;
Playlist::Entry entry;
int track = -1;
const auto maybeFlushTrack = [&](int prevTrack) {
if (track <= 0)
return;
const auto cutFromQuotation = [](QString &str) {
const int idx1 = str.indexOf('"');
const int idx2 = str.lastIndexOf('"');
if (idx1 > -1 && idx2 > idx1)
str = str.mid(idx1 + 1, idx2 - idx1 - 1);
else
str.clear();
};
cutFromQuotation(title);
cutFromQuotation(performer);
if (!title.isEmpty() && !performer.isEmpty())
entry.name = performer + " - " + title;
else if (title.isEmpty() && !performer.isEmpty())
entry.name = performer;
else if (!title.isEmpty() && performer.isEmpty())
entry.name = title;
if (entry.name.isEmpty())
{
if (entry.parent == 1)
entry.name = tr("Track") + " " + QString::number(prevTrack);
else
entry.name = Functions::fileName(entry.url, false);
}
title.clear();
performer.clear();
if (prevTrack > 0)
{
if (index0 <= 0.0)
index0 = index1; // "INDEX 00" doesn't exist, use "INDEX 01"
indexes[prevTrack].first = index0;
indexes[prevTrack].second = index1;
if (entries.count() <= prevTrack)
entries.resize(prevTrack + 1);
entries[prevTrack] = entry;
}
else
{
entries.prepend(entry);
}
entry = Playlist::Entry();
entry.parent = 1;
entry.url = audioUrl;
index0 = index1 = -1.0;
};
const auto parseTime = [](const QByteArray &time) {
int m = 0, s = 0, f = 0;
if (sscanf(time.constData(), "%2d:%2d:%2d", &m, &s, &f) == 3)
return m * 60.0 + s + f / 75.0;
return -1.0;
};
entry.url = url;
entry.GID = 1;
for (QByteArray &line : data)
{
line = line.trimmed();
if (track < 0)
{
if (line.startsWith("TITLE "))
title = line;
else if (line.startsWith("PERFORMER "))
performer = line;
else if (line.startsWith("FILE "))
{
const int idx = line.lastIndexOf('"');
if (idx > -1)
{
audioUrl = line.mid(6, idx - 6);
if (!audioUrl.isEmpty())
audioUrl.prepend(Functions::filePath(url));
}
}
}
else if (line.startsWith("FILE "))
{
// QMPlay2 supports CUE files which uses only single audio file
return {};
}
if (line.startsWith("TRACK "))
{
if (entries.isEmpty() && audioUrl.isEmpty())
break;
if (line.endsWith(" AUDIO"))
{
const int prevTrack = track;
track = line.mid(6, 2).toInt();
if (track < 99)
maybeFlushTrack(prevTrack);
else
track = 0;
}
else
{
track = 0;
}
}
else if (track > 0)
{
if (line.startsWith("TITLE "))
title = line;
else if (line.startsWith("PERFORMER "))
performer = line;
else if (line.startsWith("INDEX 00 "))
index0 = parseTime(line.mid(9));
else if (line.startsWith("INDEX 01 "))
index1 = parseTime(line.mid(9));
}
}
maybeFlushTrack(track);
for (int i = entries.count() - 1; i >= 1; --i)
{
Playlist::Entry &entry = entries[i];
const bool lastItem = (i == entries.count() - 1);
const double start = indexes.value(i).second;
const double end = indexes.value(i + 1, {-1.0, -1.0}).first;
if (entry.url.isEmpty() || start < 0.0 || (end <= 0.0 && !lastItem))
{
entries.removeAt(i);
continue;
}
const QString param = QString("CUE:%1:%2").arg(start).arg(end);
if (lastItem && end < 0.0) // Last entry doesn't have specified length in CUE file
{
FormatContext *fmtCtx = createFmtCtx();
if (fmtCtx->open(entry.url, param))
entry.length = fmtCtx->length();
destroyFmtCtx(fmtCtx);
if (abortFetchTracks)
{
ok = false;
return {};
}
}
else
{
entry.length = end - start;
}
entry.url = QString("%1://{%2}%3").arg(DemuxerName, entry.url, param);
}
if (!entries.isEmpty())
return entries;
}
}
OggHelper oggHelper(url.mid(7), abortFetchTracks);
if (oggHelper.io)
{
Playlist::Entries entries;
int i = 0;
for (const OggHelper::Chain &chains : oggHelper.getOggChains(ok))
{
const QString param = QString("OGG:%1:%2:%3").arg(++i).arg(chains.first).arg(chains.second);
FormatContext *fmtCtx = createFmtCtx();
if (fmtCtx->open(url, param))
{
Playlist::Entry entry;
entry.url = QString("%1://{%2}%3").arg(DemuxerName, url, param);
entry.name = fmtCtx->title();
entry.length = fmtCtx->length();
entries.append(entry);
}
destroyFmtCtx(fmtCtx);
if (abortFetchTracks)
{
ok = false;
return {};
}
}
if (ok && !entries.isEmpty())
{
for (int i = 0; i < entries.count(); ++i)
entries[i].parent = 1;
Playlist::Entry entry;
entry.name = Functions::fileName(url, false);
entry.url = url;
entry.GID = 1;
entries.prepend(entry);
return entries;
}
}
return {};
}
