qgstreamermediacapture_p.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QGSTREAMERCAPTURESERVICE_H
#define QGSTREAMERCAPTURESERVICE_H
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
 
#include <private/qplatformmediacapture_p.h>
#include <private/qplatformmediaintegration_p.h>
 
#include <common/qgst_p.h>
#include <common/qgstpipeline_p.h>
 
#include <qtimer.h>
 
QT_BEGIN_NAMESPACE
 
class QGstreamerCamera;
class QGstreamerImageCapture;
class QGstreamerMediaEncoder;
class QGstreamerAudioInput;
class QGstreamerAudioOutput;
class QGstreamerVideoOutput;
class QGstreamerVideoSink;
 
class QGstreamerMediaCapture final : public QPlatformMediaCaptureSession
{
    Q_OBJECT
 
public:
    static QMaybe<QPlatformMediaCaptureSession *> create();
    virtual ~QGstreamerMediaCapture();
 
    QPlatformCamera *camera() override;
    void setCamera(QPlatformCamera *camera) override;
 
    QPlatformImageCapture *imageCapture() override;
    void setImageCapture(QPlatformImageCapture *imageCapture) override;
 
    QPlatformMediaRecorder *mediaRecorder() override;
    void setMediaRecorder(QPlatformMediaRecorder *recorder) override;
 
    void setAudioInput(QPlatformAudioInput *input) override;
    QGstreamerAudioInput *audioInput() { return gstAudioInput; }
 
    void setVideoPreview(QVideoSink *sink) override;
    void setAudioOutput(QPlatformAudioOutput *output) override;
 
    void linkEncoder(QGstPad audioSink, QGstPad videoSink);
    void unlinkEncoder();
 
    const QGstPipeline &pipeline() const { return capturePipeline; }
 
    QGstreamerVideoSink *gstreamerVideoSink() const;
 
    void *nativePipeline() override;
 
private:
    void setCameraActive(bool activate);
 
    explicit QGstreamerMediaCapture(QGstreamerVideoOutput *videoOutput);
 
    friend QGstreamerMediaEncoder;
    // Gst elements
    QGstPipeline capturePipeline;
 
    QGstreamerAudioInput *gstAudioInput = nullptr;
    QGstreamerCamera *gstCamera = nullptr;
    QMetaObject::Connection gstCameraActiveConnection;
 
    QGstElement gstAudioTee;
    QGstElement gstVideoTee;
    QGstElement encoderVideoCapsFilter;
    QGstElement encoderAudioCapsFilter;
 
    QGstPad encoderAudioSink;
    QGstPad encoderVideoSink;
    QGstPad imageCaptureSink;
 
    QGstreamerAudioOutput *gstAudioOutput = nullptr;
    QGstreamerVideoOutput *gstVideoOutput = nullptr;
 
    QGstreamerMediaEncoder *m_mediaEncoder = nullptr;
    QGstreamerImageCapture *m_imageCapture = nullptr;
};
 
QT_END_NAMESPACE
 
#endif // QGSTREAMERCAPTURESERVICE_H