| 1 | // Copyright (C) 2021 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | #ifndef QFFMPEGDEMUXER_P_H |
| 4 | #define QFFMPEGDEMUXER_P_H |
| 5 | |
| 6 | // |
| 7 | // W A R N I N G |
| 8 | // ------------- |
| 9 | // |
| 10 | // This file is not part of the Qt API. It exists purely as an |
| 11 | // implementation detail. This header file may change from version to |
| 12 | // version without notice, or even be removed. |
| 13 | // |
| 14 | // We mean it. |
| 15 | // |
| 16 | |
| 17 | #include "playbackengine/qffmpegplaybackengineobject_p.h" |
| 18 | #include "private/qplatformmediaplayer_p.h" |
| 19 | #include "playbackengine/qffmpegpacket_p.h" |
| 20 | #include "playbackengine/qffmpegpositionwithoffset_p.h" |
| 21 | |
| 22 | #include <unordered_map> |
| 23 | |
| 24 | QT_BEGIN_NAMESPACE |
| 25 | |
| 26 | namespace QFFmpeg { |
| 27 | |
| 28 | class Demuxer : public PlaybackEngineObject |
| 29 | { |
| 30 | Q_OBJECT |
| 31 | public: |
| 32 | Demuxer(AVFormatContext *context, const PositionWithOffset &posWithOffset, |
| 33 | const StreamIndexes &streamIndexes, int loops); |
| 34 | |
| 35 | using RequestingSignal = void (Demuxer::*)(Packet); |
| 36 | static RequestingSignal signalByTrackType(QPlatformMediaPlayer::TrackType trackType); |
| 37 | |
| 38 | void setLoops(int loopsCount); |
| 39 | |
| 40 | public slots: |
| 41 | void onPacketProcessed(Packet); |
| 42 | |
| 43 | signals: |
| 44 | void requestProcessAudioPacket(Packet); |
| 45 | void requestProcessVideoPacket(Packet); |
| 46 | void requestProcessSubtitlePacket(Packet); |
| 47 | void firstPacketFound(TimePoint tp, qint64 trackPos); |
| 48 | void packetsBuffered(); |
| 49 | |
| 50 | private: |
| 51 | bool canDoNextStep() const override; |
| 52 | |
| 53 | void doNextStep() override; |
| 54 | |
| 55 | void ensureSeeked(); |
| 56 | |
| 57 | private: |
| 58 | struct StreamData |
| 59 | { |
| 60 | QPlatformMediaPlayer::TrackType trackType = QPlatformMediaPlayer::TrackType::NTrackTypes; |
| 61 | qint64 bufferedDuration = 0; |
| 62 | qint64 bufferedSize = 0; |
| 63 | |
| 64 | qint64 maxSentPacketsPos = 0; |
| 65 | qint64 maxProcessedPacketPos = 0; |
| 66 | |
| 67 | bool isDataLimitReached = false; |
| 68 | }; |
| 69 | |
| 70 | void updateStreamDataLimitFlag(StreamData &streamData); |
| 71 | |
| 72 | private: |
| 73 | AVFormatContext *m_context = nullptr; |
| 74 | bool m_seeked = false; |
| 75 | bool m_firstPacketFound = false; |
| 76 | std::unordered_map<int, StreamData> m_streams; |
| 77 | PositionWithOffset m_posWithOffset; |
| 78 | qint64 m_maxPacketsEndPos = 0; |
| 79 | QAtomicInt m_loops = QMediaPlayer::Once; |
| 80 | bool m_buffered = false; |
| 81 | }; |
| 82 | |
| 83 | } // namespace QFFmpeg |
| 84 | |
| 85 | QT_END_NAMESPACE // QFFMPEGDEMUXER_P_H |
| 86 | |
| 87 | #endif |
| 88 |