104 lines
2.8 KiB
C++
104 lines
2.8 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/media_child_ffmpeg_loader.h"
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#include "core/crash_reports.h"
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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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VideoSoundData::~VideoSoundData() {
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if (context) {
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avcodec_close(context);
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avcodec_free_context(&context);
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context = nullptr;
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}
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}
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ChildFFMpegLoader::ChildFFMpegLoader(std::unique_ptr<VideoSoundData> &&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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}
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bool ChildFFMpegLoader::open(TimeMs positionMs) {
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return initUsingContext(
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_parentData->context,
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_parentData->length,
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_parentData->frequency);
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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 readResult = readFromReadyContext(
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_parentData->context,
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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.isEmpty()) {
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return _eofReached ? ReadResult::EndOfFile : ReadResult::Wait;
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}
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AVPacket packet;
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FFMpeg::packetFromDataWrap(packet, _queue.dequeue());
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_eofReached = FFMpeg::isNullPacket(packet);
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if (_eofReached) {
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avcodec_send_packet(_parentData->context, nullptr); // drain
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return ReadResult::Ok;
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}
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auto res = avcodec_send_packet(_parentData->context, &packet);
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if (res < 0) {
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FFMpeg::freePacket(&packet);
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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', data size '%2', error %3, %4").arg(_file.name()).arg(_data.size()).arg(res).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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FFMpeg::freePacket(&packet);
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return ReadResult::Ok;
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}
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void ChildFFMpegLoader::enqueuePackets(QQueue<FFMpeg::AVPacketDataWrap> &packets) {
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_queue += std::move(packets);
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packets.clear();
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}
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ChildFFMpegLoader::~ChildFFMpegLoader() {
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for (auto &packetData : base::take(_queue)) {
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AVPacket packet;
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FFMpeg::packetFromDataWrap(packet, packetData);
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FFMpeg::freePacket(&packet);
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}
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}
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