Initial copy of QtMultimediaKit.
Comes from original repo, with SHA1: 2c82d5611655e5967f5c5095af50c0991c4378b2
This commit is contained in:
Michael Goddard
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src/plugins/gstreamer/mediacapture/qgstreamercapturesession.h
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211
src/plugins/gstreamer/mediacapture/qgstreamercapturesession.h
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Mobility Components.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QGSTREAMERCAPTURESESSION_H
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#define QGSTREAMERCAPTURESESSION_H
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#include <qmediarecordercontrol.h>
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#include <qmediarecorder.h>
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#include <QtCore/qurl.h>
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#include <gst/gst.h>
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#include "qgstreamerbushelper.h"
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QT_USE_NAMESPACE
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class QGstreamerMessage;
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class QGstreamerBusHelper;
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class QGstreamerAudioEncode;
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class QGstreamerVideoEncode;
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class QGstreamerImageEncode;
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class QGstreamerRecorderControl;
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class QGstreamerMediaContainerControl;
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class QGstreamerVideoRendererInterface;
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class QGstreamerElementFactory
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{
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public:
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virtual GstElement *buildElement() = 0;
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virtual void prepareWinId() {}
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};
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class QGstreamerVideoInput : public QGstreamerElementFactory
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{
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public:
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virtual QList<qreal> supportedFrameRates(const QSize &frameSize = QSize()) const = 0;
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virtual QList<QSize> supportedResolutions(qreal frameRate = -1) const = 0;
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};
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class QGstreamerCaptureSession : public QObject, public QGstreamerSyncEventFilter
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{
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Q_OBJECT
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Q_PROPERTY(qint64 duration READ duration NOTIFY durationChanged)
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Q_ENUMS(State)
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Q_ENUMS(CaptureMode)
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public:
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enum CaptureMode { Audio = 1, Video = 2, Image=4, AudioAndVideo = Audio | Video };
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enum State { StoppedState, PreviewState, PausedState, RecordingState };
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QGstreamerCaptureSession(CaptureMode captureMode, QObject *parent);
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~QGstreamerCaptureSession();
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CaptureMode captureMode() const { return m_captureMode; }
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void setCaptureMode(CaptureMode);
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QUrl outputLocation() const;
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bool setOutputLocation(const QUrl& sink);
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QGstreamerAudioEncode *audioEncodeControl() const { return m_audioEncodeControl; }
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QGstreamerVideoEncode *videoEncodeControl() const { return m_videoEncodeControl; }
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QGstreamerImageEncode *imageEncodeControl() const { return m_imageEncodeControl; }
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QGstreamerRecorderControl *recorderControl() const { return m_recorderControl; }
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QGstreamerMediaContainerControl *mediaContainerControl() const { return m_mediaContainerControl; }
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QGstreamerElementFactory *audioInput() const { return m_audioInputFactory; }
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void setAudioInput(QGstreamerElementFactory *audioInput);
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QGstreamerElementFactory *audioPreview() const { return m_audioPreviewFactory; }
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void setAudioPreview(QGstreamerElementFactory *audioPreview);
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QGstreamerVideoInput *videoInput() const { return m_videoInputFactory; }
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void setVideoInput(QGstreamerVideoInput *videoInput);
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QObject *videoPreview() const { return m_viewfinder; }
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void setVideoPreview(QObject *viewfinder);
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void captureImage(int requestId, const QString &fileName);
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State state() const;
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qint64 duration() const;
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bool isMuted() const { return m_muted; }
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bool isReady() const;
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bool processSyncMessage(const QGstreamerMessage &message);
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signals:
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void stateChanged(QGstreamerCaptureSession::State state);
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void durationChanged(qint64 duration);
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void error(int error, const QString &errorString);
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void imageExposed(int requestId);
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void imageCaptured(int requestId, const QImage &img);
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void imageSaved(int requestId, const QString &path);
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void mutedChanged(bool);
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void readyChanged(bool);
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void viewfinderChanged();
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public slots:
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void setState(QGstreamerCaptureSession::State);
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void setCaptureDevice(const QString &deviceName);
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void dumpGraph(const QString &fileName);
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void setMetaData(const QMap<QByteArray, QVariant>&);
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void setMuted(bool);
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private slots:
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void busMessage(const QGstreamerMessage &message);
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private:
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enum PipelineMode { EmptyPipeline, PreviewPipeline, RecordingPipeline, PreviewAndRecordingPipeline };
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GstElement *buildEncodeBin();
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GstElement *buildAudioSrc();
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GstElement *buildAudioPreview();
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GstElement *buildVideoSrc();
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GstElement *buildVideoPreview();
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GstElement *buildImageCapture();
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void waitForStopped();
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bool rebuildGraph(QGstreamerCaptureSession::PipelineMode newMode);
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QUrl m_sink;
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QString m_captureDevice;
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State m_state;
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State m_pendingState;
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bool m_waitingForEos;
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PipelineMode m_pipelineMode;
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QGstreamerCaptureSession::CaptureMode m_captureMode;
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QMap<QByteArray, QVariant> m_metaData;
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QGstreamerElementFactory *m_audioInputFactory;
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QGstreamerElementFactory *m_audioPreviewFactory;
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QGstreamerVideoInput *m_videoInputFactory;
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QObject *m_viewfinder;
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QGstreamerVideoRendererInterface *m_viewfinderInterface;
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QGstreamerAudioEncode *m_audioEncodeControl;
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QGstreamerVideoEncode *m_videoEncodeControl;
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QGstreamerImageEncode *m_imageEncodeControl;
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QGstreamerRecorderControl *m_recorderControl;
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QGstreamerMediaContainerControl *m_mediaContainerControl;
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QGstreamerBusHelper *m_busHelper;
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GstBus* m_bus;
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GstElement *m_pipeline;
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GstElement *m_audioSrc;
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GstElement *m_audioTee;
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GstElement *m_audioPreviewQueue;
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GstElement *m_audioPreview;
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GstElement *m_audioVolume;
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bool m_muted;
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GstElement *m_videoSrc;
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GstElement *m_videoTee;
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GstElement *m_videoPreviewQueue;
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GstElement *m_videoPreview;
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GstElement *m_imageCaptureBin;
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GstElement *m_encodeBin;
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public:
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bool m_passImage;
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bool m_passPrerollImage;
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QString m_imageFileName;
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int m_imageRequestId;
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};
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#endif // QGSTREAMERCAPTURESESSION_H
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