| 1 | // Copyright (C) 2024 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 QFFMPEGVIDEOENCODER_P_H |
| 4 | #define QFFMPEGVIDEOENCODER_P_H |
| 5 | |
| 6 | #include "qffmpegencoderthread_p.h" |
| 7 | #include "qffmpeg_p.h" |
| 8 | #include "qffmpegvideoframeencoder_p.h" |
| 9 | #include <qvideoframe.h> |
| 10 | #include <queue> |
| 11 | |
| 12 | QT_BEGIN_NAMESPACE |
| 13 | |
| 14 | class QVideoFrameFormat; |
| 15 | class QMediaEncoderSettings; |
| 16 | |
| 17 | namespace QFFmpeg { |
| 18 | class VideoFrameEncoder; |
| 19 | |
| 20 | class VideoEncoder : public EncoderThread |
| 21 | { |
| 22 | public: |
| 23 | VideoEncoder(RecordingEngine &recordingEngine, const QMediaEncoderSettings &settings, |
| 24 | const QVideoFrameFormat &format, std::optional<AVPixelFormat> hwFormat); |
| 25 | ~VideoEncoder() override; |
| 26 | |
| 27 | void addFrame(const QVideoFrame &frame); |
| 28 | |
| 29 | protected: |
| 30 | bool checkIfCanPushFrame() const override; |
| 31 | |
| 32 | private: |
| 33 | struct FrameInfo |
| 34 | { |
| 35 | QVideoFrame frame; |
| 36 | bool shouldAdjustTimeBase = false; |
| 37 | }; |
| 38 | |
| 39 | FrameInfo takeFrame(); |
| 40 | void retrievePackets(); |
| 41 | |
| 42 | bool init() override; |
| 43 | void cleanup() override; |
| 44 | bool hasData() const override; |
| 45 | void processOne() override; |
| 46 | |
| 47 | std::pair<qint64, qint64> frameTimeStamps(const QVideoFrame &frame) const; |
| 48 | |
| 49 | private: |
| 50 | QMediaEncoderSettings m_settings; |
| 51 | VideoFrameEncoder::SourceParams m_sourceParams; |
| 52 | std::queue<FrameInfo> m_videoFrameQueue; |
| 53 | const size_t m_maxQueueSize = 10; // Arbitrarily chosen to limit memory usage (332 MB @ 4K) |
| 54 | |
| 55 | VideoFrameEncoderUPtr m_frameEncoder; |
| 56 | qint64 m_baseTime = 0; |
| 57 | bool m_shouldAdjustTimeBaseForNextFrame = true; |
| 58 | qint64 m_lastFrameTime = 0; |
| 59 | }; |
| 60 | |
| 61 | } // namespace QFFmpeg |
| 62 | |
| 63 | QT_END_NAMESPACE |
| 64 | |
| 65 | #endif |
| 66 |