| 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 | #ifndef QMEDIAFRAMEINPUT_P_H |
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| 5 | #define QMEDIAFRAMEINPUT_P_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | // |
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| 17 | |
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| 18 | #include "qmediacapturesession.h" |
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| 19 | #include <QtCore/private/qobject_p.h> |
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| 20 | |
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| 21 | QT_BEGIN_NAMESPACE |
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| 22 | |
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| 23 | class QMediaFrameInputPrivate : public QObjectPrivate |
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| 24 | { |
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| 25 | public: |
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| 26 | void setCaptureSession(QMediaCaptureSession *session); |
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| 27 | |
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| 28 | QMediaCaptureSession *captureSession() const { return m_captureSession; } |
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| 29 | |
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| 30 | protected: |
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| 31 | template <typename Sender> |
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| 32 | bool sendMediaFrame(Sender &&sender) |
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| 33 | { |
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| 34 | if (!m_canSendMediaFrame) |
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| 35 | return false; |
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| 36 | |
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| 37 | sender(); |
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| 38 | postponeCheckReadyToSend(); |
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| 39 | return true; |
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| 40 | } |
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| 41 | |
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| 42 | template <typename Sender, typename Signal> |
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| 43 | void addUpdateSignal(Sender sender, Signal signal) |
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| 44 | { |
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| 45 | connect(sender, signal, this, &QMediaFrameInputPrivate::updateCanSendMediaFrame); |
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| 46 | } |
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| 47 | |
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| 48 | template <typename Sender, typename Signal> |
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| 49 | void removeUpdateSignal(Sender sender, Signal signal) |
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| 50 | { |
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| 51 | disconnect(sender, signal, this, &QMediaFrameInputPrivate::updateCanSendMediaFrame); |
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| 52 | } |
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| 53 | |
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| 54 | void updateCanSendMediaFrame(); |
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| 55 | |
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| 56 | private: |
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| 57 | void postponeCheckReadyToSend(); |
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| 58 | |
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| 59 | virtual bool checkIfCanSendMediaFrame() const = 0; |
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| 60 | |
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| 61 | virtual void emitReadyToSendMediaFrame() = 0; |
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| 62 | |
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| 63 | virtual void updateCaptureSessionConnections(QMediaCaptureSession *prevSession, |
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| 64 | QMediaCaptureSession *currentSession) = 0; |
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| 65 | |
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| 66 | private: |
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| 67 | QMediaCaptureSession *m_captureSession = nullptr; |
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| 68 | bool m_canSendMediaFrame = false; |
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| 69 | bool m_postponeReadyToSendCheckRun = false; |
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| 70 | }; |
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| 71 | |
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| 72 | QT_END_NAMESPACE |
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| 73 | |
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| 74 | #endif // QMEDIAFRAMEINPUT_P_H |
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| 75 | |
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