135 lines
3.3 KiB
C++
135 lines
3.3 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "media/audio/media_child_ffmpeg_loader.h"
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#include "core/crash_reports.h"
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namespace Media {
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namespace {
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constexpr AVSampleFormat AudioToFormat = AV_SAMPLE_FMT_S16;
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constexpr int64_t AudioToChannelLayout = AV_CH_LAYOUT_STEREO;
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constexpr int32 AudioToChannels = 2;
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bool IsPlanarFormat(int format) {
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return (format == AV_SAMPLE_FMT_U8P)
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|| (format == AV_SAMPLE_FMT_S16P)
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|| (format == AV_SAMPLE_FMT_S32P)
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|| (format == AV_SAMPLE_FMT_FLTP)
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|| (format == AV_SAMPLE_FMT_DBLP)
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|| (format == AV_SAMPLE_FMT_S64P);
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}
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} // namespace
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ChildFFMpegLoader::ChildFFMpegLoader(
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std::unique_ptr<ExternalSoundData> &&data)
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: AbstractAudioFFMpegLoader(
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FileLocation(),
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QByteArray(),
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bytes::vector())
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, _parentData(std::move(data)) {
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Expects(_parentData->codec != nullptr);
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}
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bool ChildFFMpegLoader::open(crl::time positionMs) {
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return initUsingContext(
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_parentData->codec.get(),
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_parentData->length,
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_parentData->frequency);
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}
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AudioPlayerLoader::ReadResult ChildFFMpegLoader::readFromInitialFrame(
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QByteArray &result,
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int64 &samplesAdded) {
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if (!_parentData->frame) {
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return ReadResult::Wait;
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}
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return replaceFrameAndRead(
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base::take(_parentData->frame),
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result,
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samplesAdded);
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}
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AudioPlayerLoader::ReadResult ChildFFMpegLoader::readMore(
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QByteArray & result,
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int64 & samplesAdded) {
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const auto initialFrameResult = readFromInitialFrame(
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result,
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samplesAdded);
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if (initialFrameResult != ReadResult::Wait) {
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return initialFrameResult;
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}
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const auto readResult = readFromReadyContext(
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_parentData->codec.get(),
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result,
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samplesAdded);
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if (readResult != ReadResult::Wait) {
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return readResult;
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}
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if (_queue.empty()) {
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return _eofReached ? ReadResult::EndOfFile : ReadResult::Wait;
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}
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auto packet = std::move(_queue.front());
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_queue.pop_front();
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_eofReached = packet.empty();
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if (_eofReached) {
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avcodec_send_packet(_parentData->codec.get(), nullptr); // drain
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return ReadResult::Ok;
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}
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auto res = avcodec_send_packet(
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_parentData->codec.get(),
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&packet.fields());
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if (res < 0) {
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char err[AV_ERROR_MAX_STRING_SIZE] = { 0 };
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LOG(("Audio Error: Unable to avcodec_send_packet() file '%1', "
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"data size '%2', error %3, %4"
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).arg(_file.name()
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).arg(_data.size()
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).arg(res
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).arg(av_make_error_string(err, sizeof(err), res)));
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// There is a sample voice message where skipping such packet
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// results in a crash (read_access to nullptr) in swr_convert().
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if (res == AVERROR_INVALIDDATA) {
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return ReadResult::NotYet; // try to skip bad packet
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}
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return ReadResult::Error;
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}
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return ReadResult::Ok;
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}
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void ChildFFMpegLoader::enqueuePackets(
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std::deque<FFmpeg::Packet> &&packets) {
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if (_queue.empty()) {
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_queue = std::move(packets);
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} else {
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_queue.insert(
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end(_queue),
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std::make_move_iterator(packets.begin()),
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std::make_move_iterator(packets.end()));
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}
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packets.clear();
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}
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void ChildFFMpegLoader::setForceToBuffer(bool force) {
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_forceToBuffer = force;
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}
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bool ChildFFMpegLoader::forceToBuffer() const {
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return _forceToBuffer;
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}
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ChildFFMpegLoader::~ChildFFMpegLoader() = default;
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} // namespace Media
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