| 1 | // Copyright (C) 2024 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #include "recordingengine/qffmpegrecordingengineutils_p.h" |
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| 5 | #include "recordingengine/qffmpegencoderthread_p.h" |
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| 6 | #include "private/qplatformaudiobufferinput_p.h" |
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| 7 | #include "private/qplatformvideoframeinput_p.h" |
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| 8 | |
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| 9 | QT_BEGIN_NAMESPACE |
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| 10 | |
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| 11 | namespace QFFmpeg { |
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| 12 | |
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| 13 | template <typename F> |
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| 14 | static void doWithMediaFrameInput(QObject *source, F &&f) |
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| 15 | { |
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| 16 | if (auto videoFrameInput = qobject_cast<QPlatformVideoFrameInput *>(object: source)) |
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| 17 | f(videoFrameInput); |
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| 18 | else if (auto audioBufferInput = qobject_cast<QPlatformAudioBufferInput *>(object: source)) |
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| 19 | f(audioBufferInput); |
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| 20 | } |
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| 21 | |
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| 22 | void setEncoderInterface(QObject *source, QMediaInputEncoderInterface *encoderInterface) |
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| 23 | { |
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| 24 | doWithMediaFrameInput(source, f: [&](auto source) { |
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| 25 | using Source = std::remove_pointer_t<decltype(source)>; |
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| 26 | |
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| 27 | source->setEncoderInterface(encoderInterface); |
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| 28 | if (encoderInterface) |
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| 29 | // Postpone emit 'encoderUpdated' as the encoding pipeline may be not |
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| 30 | // completely ready at the moment. The case is calling QMediaRecorder::stop |
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| 31 | // upon handling 'readyToSendFrame' |
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| 32 | QMetaObject::invokeMethod(source, &Source::encoderUpdated, Qt::QueuedConnection); |
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| 33 | else |
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| 34 | emit source->encoderUpdated(); |
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| 35 | }); |
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| 36 | } |
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| 37 | |
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| 38 | void setEncoderUpdateConnection(QObject *source, EncoderThread *encoder) |
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| 39 | { |
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| 40 | doWithMediaFrameInput(source, f: [&](auto source) { |
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| 41 | using Source = std::remove_pointer_t<decltype(source)>; |
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| 42 | QObject::connect(encoder, &EncoderThread::canPushFrameChanged, source, |
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| 43 | &Source::encoderUpdated); |
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| 44 | }); |
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| 45 | } |
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| 46 | |
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| 47 | void disconnectEncoderFromSource(EncoderThread *encoder) |
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| 48 | { |
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| 49 | QObject *source = encoder->source(); |
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| 50 | if (!source) |
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| 51 | return; |
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| 52 | |
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| 53 | // We should address the dependency AudioEncoder from QFFmpegAudioInput to |
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| 54 | // set null source here. |
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| 55 | // encoder->setSource(nullptr); |
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| 56 | |
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| 57 | QObject::disconnect(sender: source, signal: nullptr, receiver: encoder, member: nullptr); |
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| 58 | setEncoderInterface(source, encoderInterface: nullptr); |
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| 59 | } |
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| 60 | |
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| 61 | } // namespace QFFmpeg |
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| 62 | |
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| 63 | QT_END_NAMESPACE |
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| 64 | |
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