86 lines
2.1 KiB
C++
86 lines
2.1 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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#pragma once
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#include "media/media_audio_ffmpeg_loader.h"
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struct VideoSoundData {
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AVCodecContext *context = nullptr;
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int32 frequency = Media::Player::kDefaultFrequency;
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int64 length = 0;
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~VideoSoundData();
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};
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struct VideoSoundPart {
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AVPacket *packet = nullptr;
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AudioMsgId audio;
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uint32 playId = 0;
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};
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namespace FFMpeg {
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// AVPacket has a deprecated field, so when you copy an AVPacket
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// variable (e.g. inside QQueue), a compile warning is emited.
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// We wrap full AVPacket data in a new AVPacketDataWrap struct.
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// All other fields are copied from AVPacket without modifications.
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struct AVPacketDataWrap {
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char __data[sizeof(AVPacket)];
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};
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inline void packetFromDataWrap(AVPacket &packet, const AVPacketDataWrap &data) {
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memcpy(&packet, &data, sizeof(data));
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}
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inline AVPacketDataWrap dataWrapFromPacket(const AVPacket &packet) {
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AVPacketDataWrap data;
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memcpy(&data, &packet, sizeof(data));
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return data;
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}
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inline bool isNullPacket(const AVPacket &packet) {
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return packet.data == nullptr && packet.size == 0;
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}
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inline bool isNullPacket(const AVPacket *packet) {
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return isNullPacket(*packet);
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}
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inline void freePacket(AVPacket *packet) {
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if (!isNullPacket(packet)) {
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av_packet_unref(packet);
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}
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}
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} // namespace FFMpeg
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class ChildFFMpegLoader : public AbstractAudioFFMpegLoader {
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public:
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ChildFFMpegLoader(std::unique_ptr<VideoSoundData> &&data);
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bool open(TimeMs positionMs) override;
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bool check(const FileLocation &file, const QByteArray &data) override {
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return true;
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}
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ReadResult readMore(QByteArray &result, int64 &samplesAdded) override;
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void enqueuePackets(QQueue<FFMpeg::AVPacketDataWrap> &packets) override;
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bool eofReached() const {
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return _eofReached;
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}
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~ChildFFMpegLoader();
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private:
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std::unique_ptr<VideoSoundData> _parentData;
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QQueue<FFMpeg::AVPacketDataWrap> _queue;
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bool _eofReached = false;
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};
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