| 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 | |
| 4 | #ifndef QENCODINGINITIALIZER_P_H |
| 5 | #define QENCODINGINITIALIZER_P_H |
| 6 | |
| 7 | #include "qobject.h" |
| 8 | #include "private/qmediainputencoderinterface_p.h" |
| 9 | #include <unordered_set> |
| 10 | #include <vector> |
| 11 | |
| 12 | // |
| 13 | // W A R N I N G |
| 14 | // ------------- |
| 15 | // |
| 16 | // This file is not part of the Qt API. It exists purely as an |
| 17 | // implementation detail. This header file may change from version to |
| 18 | // version without notice, or even be removed. |
| 19 | // |
| 20 | // We mean it. |
| 21 | // |
| 22 | |
| 23 | QT_BEGIN_NAMESPACE |
| 24 | |
| 25 | class QFFmpegAudioInput; |
| 26 | class QPlatformVideoSource; |
| 27 | class QPlatformAudioBufferInput; |
| 28 | class QPlatformAudioBufferInputBase; |
| 29 | class QMediaInputEncoderInterface; |
| 30 | |
| 31 | namespace QFFmpeg { |
| 32 | |
| 33 | class RecordingEngine; |
| 34 | |
| 35 | // Initializes RecordingEngine with audio and video sources, potentially lazily |
| 36 | // upon first frame arrival if video frame format is not pre-determined. |
| 37 | class EncodingInitializer : public QObject, private QMediaInputEncoderInterface |
| 38 | { |
| 39 | public: |
| 40 | EncodingInitializer(RecordingEngine &engine); |
| 41 | |
| 42 | ~EncodingInitializer() override; |
| 43 | |
| 44 | void start(const std::vector<QPlatformAudioBufferInputBase *> &audioSources, |
| 45 | const std::vector<QPlatformVideoSource *> &videoSources); |
| 46 | |
| 47 | private: |
| 48 | void addAudioBufferInput(QPlatformAudioBufferInput *input); |
| 49 | |
| 50 | void addPendingAudioBufferInput(QPlatformAudioBufferInput *input); |
| 51 | |
| 52 | void addVideoSource(QPlatformVideoSource *source); |
| 53 | |
| 54 | void addPendingVideoSource(QPlatformVideoSource *source); |
| 55 | |
| 56 | void addPendingSource(QObject *source); |
| 57 | |
| 58 | void tryStartRecordingEngine(); |
| 59 | |
| 60 | private: |
| 61 | void emitStreamInitializationError(QString error); |
| 62 | |
| 63 | template <typename F> |
| 64 | void erasePendingSource(QObject *source, F &&functionOrError, bool destroyed = false); |
| 65 | |
| 66 | bool canPushFrame() const override; |
| 67 | |
| 68 | private: |
| 69 | RecordingEngine &m_recordingEngine; |
| 70 | std::unordered_set<QObject *> m_pendingSources; |
| 71 | }; |
| 72 | |
| 73 | } // namespace QFFmpeg |
| 74 | |
| 75 | QT_END_NAMESPACE |
| 76 | |
| 77 | #endif // QENCODINGINITIALIZER_P_H |
| 78 |