| 1 | // Copyright (C) 2016 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 | |
| 4 | |
| 5 | #ifndef QGSTREAMERENCODERCONTROL_H |
| 6 | #define QGSTREAMERENCODERCONTROL_H |
| 7 | |
| 8 | // |
| 9 | // W A R N I N G |
| 10 | // ------------- |
| 11 | // |
| 12 | // This file is not part of the Qt API. It exists purely as an |
| 13 | // implementation detail. This header file may change from version to |
| 14 | // version without notice, or even be removed. |
| 15 | // |
| 16 | // We mean it. |
| 17 | // |
| 18 | |
| 19 | #include <private/qplatformmediarecorder_p.h> |
| 20 | #include "qgstreamermediacapture_p.h" |
| 21 | #include "qgstreamermetadata_p.h" |
| 22 | |
| 23 | #include <QtCore/qurl.h> |
| 24 | #include <QtCore/qdir.h> |
| 25 | #include <qelapsedtimer.h> |
| 26 | #include <qtimer.h> |
| 27 | |
| 28 | QT_BEGIN_NAMESPACE |
| 29 | |
| 30 | class QMediaMetaData; |
| 31 | class QGstreamerMessage; |
| 32 | |
| 33 | class QGstreamerMediaEncoder : public QPlatformMediaRecorder, QGstreamerBusMessageFilter |
| 34 | { |
| 35 | public: |
| 36 | QGstreamerMediaEncoder(QMediaRecorder *parent); |
| 37 | virtual ~QGstreamerMediaEncoder(); |
| 38 | |
| 39 | bool isLocationWritable(const QUrl &sink) const override; |
| 40 | |
| 41 | qint64 duration() const override; |
| 42 | |
| 43 | void record(QMediaEncoderSettings &settings) override; |
| 44 | void pause() override; |
| 45 | void resume() override; |
| 46 | void stop() override; |
| 47 | |
| 48 | void setMetaData(const QMediaMetaData &) override; |
| 49 | QMediaMetaData metaData() const override; |
| 50 | |
| 51 | void setCaptureSession(QPlatformMediaCaptureSession *session); |
| 52 | |
| 53 | QGstElement getEncoder() { return gstEncoder; } |
| 54 | private: |
| 55 | bool processBusMessage(const QGstreamerMessage& message) override; |
| 56 | |
| 57 | private: |
| 58 | struct PauseControl { |
| 59 | PauseControl(QPlatformMediaRecorder &encoder) : encoder(encoder) {} |
| 60 | |
| 61 | GstPadProbeReturn processBuffer(QGstPad pad, GstPadProbeInfo *info); |
| 62 | void installOn(QGstPad pad); |
| 63 | void reset(); |
| 64 | |
| 65 | QPlatformMediaRecorder &encoder; |
| 66 | GstClockTime pauseOffsetPts = 0; |
| 67 | std::optional<GstClockTime> pauseStartPts; |
| 68 | std::optional<GstClockTime> firstBufferPts; |
| 69 | qint64 duration = 0; |
| 70 | }; |
| 71 | |
| 72 | PauseControl audioPauseControl; |
| 73 | PauseControl videoPauseControl; |
| 74 | |
| 75 | void handleSessionError(QMediaRecorder::Error code, const QString &description); |
| 76 | void finalize(); |
| 77 | |
| 78 | QGstreamerMediaCapture *m_session = nullptr; |
| 79 | QGstreamerMetaData m_metaData; |
| 80 | QTimer signalDurationChangedTimer; |
| 81 | |
| 82 | QGstPipeline gstPipeline; |
| 83 | QGstBin gstEncoder; |
| 84 | QGstElement gstFileSink; |
| 85 | |
| 86 | bool m_finalizing = false; |
| 87 | }; |
| 88 | |
| 89 | QT_END_NAMESPACE |
| 90 | |
| 91 | #endif // QGSTREAMERENCODERCONTROL_H |
| 92 |