| 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 | // |
| 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 <QtFFmpegMediaPluginImpl/private/qffmpegencoderthread_p.h> |
| 18 | #include <QtFFmpegMediaPluginImpl/private/qffmpeg_p.h> |
| 19 | #include <QtFFmpegMediaPluginImpl/private/qffmpegvideoframeencoder_p.h> |
| 20 | #include <qvideoframe.h> |
| 21 | #include <queue> |
| 22 | |
| 23 | QT_BEGIN_NAMESPACE |
| 24 | |
| 25 | class QVideoFrameFormat; |
| 26 | class QMediaEncoderSettings; |
| 27 | |
| 28 | namespace QFFmpeg { |
| 29 | class VideoFrameEncoder; |
| 30 | |
| 31 | class VideoEncoder : public EncoderThread |
| 32 | { |
| 33 | public: |
| 34 | VideoEncoder(RecordingEngine &recordingEngine, const QMediaEncoderSettings &settings, |
| 35 | const QVideoFrameFormat &format, std::optional<AVPixelFormat> hwFormat); |
| 36 | ~VideoEncoder() override; |
| 37 | |
| 38 | void addFrame(const QVideoFrame &frame); |
| 39 | |
| 40 | protected: |
| 41 | bool checkIfCanPushFrame() const override; |
| 42 | |
| 43 | private: |
| 44 | struct FrameInfo |
| 45 | { |
| 46 | QVideoFrame frame; |
| 47 | bool shouldAdjustTimeBase = false; |
| 48 | }; |
| 49 | |
| 50 | FrameInfo takeFrame(); |
| 51 | void retrievePackets(); |
| 52 | |
| 53 | bool init() override; |
| 54 | void cleanup() override; |
| 55 | bool hasData() const override; |
| 56 | void processOne() override; |
| 57 | |
| 58 | std::pair<qint64, qint64> frameTimeStamps(const QVideoFrame &frame) const; |
| 59 | |
| 60 | private: |
| 61 | QMediaEncoderSettings m_settings; |
| 62 | VideoFrameEncoder::SourceParams m_sourceParams; |
| 63 | std::queue<FrameInfo> m_videoFrameQueue; |
| 64 | const size_t m_maxQueueSize = 10; // Arbitrarily chosen to limit memory usage (332 MB @ 4K) |
| 65 | |
| 66 | VideoFrameEncoderUPtr m_frameEncoder; |
| 67 | qint64 m_baseTime = 0; |
| 68 | bool m_shouldAdjustTimeBaseForNextFrame = true; |
| 69 | qint64 m_lastFrameTime = 0; |
| 70 | }; |
| 71 | |
| 72 | } // namespace QFFmpeg |
| 73 | |
| 74 | QT_END_NAMESPACE |
| 75 | |
| 76 | #endif |
| 77 |