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Diffstat (limited to 'src/plugins/gstreamer/mediacapture/qgstreamercapturesession.h')
| -rw-r--r-- | src/plugins/gstreamer/mediacapture/qgstreamercapturesession.h | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/src/plugins/gstreamer/mediacapture/qgstreamercapturesession.h b/src/plugins/gstreamer/mediacapture/qgstreamercapturesession.h new file mode 100644 index 000000000..f04a49be2 --- /dev/null +++ b/src/plugins/gstreamer/mediacapture/qgstreamercapturesession.h @@ -0,0 +1,211 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QGSTREAMERCAPTURESESSION_H +#define QGSTREAMERCAPTURESESSION_H + +#include <qmediarecordercontrol.h> +#include <qmediarecorder.h> + +#include <QtCore/qurl.h> + +#include <gst/gst.h> + +#include "qgstreamerbushelper.h" + +QT_USE_NAMESPACE + +class QGstreamerMessage; +class QGstreamerBusHelper; +class QGstreamerAudioEncode; +class QGstreamerVideoEncode; +class QGstreamerImageEncode; +class QGstreamerRecorderControl; +class QGstreamerMediaContainerControl; +class QGstreamerVideoRendererInterface; + +class QGstreamerElementFactory +{ +public: + virtual GstElement *buildElement() = 0; + virtual void prepareWinId() {} +}; + +class QGstreamerVideoInput : public QGstreamerElementFactory +{ +public: + virtual QList<qreal> supportedFrameRates(const QSize &frameSize = QSize()) const = 0; + virtual QList<QSize> supportedResolutions(qreal frameRate = -1) const = 0; +}; + +class QGstreamerCaptureSession : public QObject, public QGstreamerSyncEventFilter +{ + Q_OBJECT + Q_PROPERTY(qint64 duration READ duration NOTIFY durationChanged) + Q_ENUMS(State) + Q_ENUMS(CaptureMode) +public: + enum CaptureMode { Audio = 1, Video = 2, Image=4, AudioAndVideo = Audio | Video }; + enum State { StoppedState, PreviewState, PausedState, RecordingState }; + + QGstreamerCaptureSession(CaptureMode captureMode, QObject *parent); + ~QGstreamerCaptureSession(); + + CaptureMode captureMode() const { return m_captureMode; } + void setCaptureMode(CaptureMode); + + QUrl outputLocation() const; + bool setOutputLocation(const QUrl& sink); + + QGstreamerAudioEncode *audioEncodeControl() const { return m_audioEncodeControl; } + QGstreamerVideoEncode *videoEncodeControl() const { return m_videoEncodeControl; } + QGstreamerImageEncode *imageEncodeControl() const { return m_imageEncodeControl; } + + QGstreamerRecorderControl *recorderControl() const { return m_recorderControl; } + QGstreamerMediaContainerControl *mediaContainerControl() const { return m_mediaContainerControl; } + + QGstreamerElementFactory *audioInput() const { return m_audioInputFactory; } + void setAudioInput(QGstreamerElementFactory *audioInput); + + QGstreamerElementFactory *audioPreview() const { return m_audioPreviewFactory; } + void setAudioPreview(QGstreamerElementFactory *audioPreview); + + QGstreamerVideoInput *videoInput() const { return m_videoInputFactory; } + void setVideoInput(QGstreamerVideoInput *videoInput); + + QObject *videoPreview() const { return m_viewfinder; } + void setVideoPreview(QObject *viewfinder); + + void captureImage(int requestId, const QString &fileName); + + State state() const; + qint64 duration() const; + bool isMuted() const { return m_muted; } + + bool isReady() const; + + bool processSyncMessage(const QGstreamerMessage &message); + +signals: + void stateChanged(QGstreamerCaptureSession::State state); + void durationChanged(qint64 duration); + void error(int error, const QString &errorString); + void imageExposed(int requestId); + void imageCaptured(int requestId, const QImage &img); + void imageSaved(int requestId, const QString &path); + void mutedChanged(bool); + void readyChanged(bool); + void viewfinderChanged(); + +public slots: + void setState(QGstreamerCaptureSession::State); + void setCaptureDevice(const QString &deviceName); + + void dumpGraph(const QString &fileName); + + void setMetaData(const QMap<QByteArray, QVariant>&); + void setMuted(bool); + +private slots: + void busMessage(const QGstreamerMessage &message); + +private: + enum PipelineMode { EmptyPipeline, PreviewPipeline, RecordingPipeline, PreviewAndRecordingPipeline }; + + GstElement *buildEncodeBin(); + GstElement *buildAudioSrc(); + GstElement *buildAudioPreview(); + GstElement *buildVideoSrc(); + GstElement *buildVideoPreview(); + GstElement *buildImageCapture(); + + void waitForStopped(); + bool rebuildGraph(QGstreamerCaptureSession::PipelineMode newMode); + + QUrl m_sink; + QString m_captureDevice; + State m_state; + State m_pendingState; + bool m_waitingForEos; + PipelineMode m_pipelineMode; + QGstreamerCaptureSession::CaptureMode m_captureMode; + QMap<QByteArray, QVariant> m_metaData; + + QGstreamerElementFactory *m_audioInputFactory; + QGstreamerElementFactory *m_audioPreviewFactory; + QGstreamerVideoInput *m_videoInputFactory; + QObject *m_viewfinder; + QGstreamerVideoRendererInterface *m_viewfinderInterface; + + QGstreamerAudioEncode *m_audioEncodeControl; + QGstreamerVideoEncode *m_videoEncodeControl; + QGstreamerImageEncode *m_imageEncodeControl; + QGstreamerRecorderControl *m_recorderControl; + QGstreamerMediaContainerControl *m_mediaContainerControl; + + QGstreamerBusHelper *m_busHelper; + GstBus* m_bus; + GstElement *m_pipeline; + + GstElement *m_audioSrc; + GstElement *m_audioTee; + GstElement *m_audioPreviewQueue; + GstElement *m_audioPreview; + GstElement *m_audioVolume; + bool m_muted; + + GstElement *m_videoSrc; + GstElement *m_videoTee; + GstElement *m_videoPreviewQueue; + GstElement *m_videoPreview; + + GstElement *m_imageCaptureBin; + + GstElement *m_encodeBin; + +public: + bool m_passImage; + bool m_passPrerollImage; + QString m_imageFileName; + int m_imageRequestId; +}; + +#endif // QGSTREAMERCAPTURESESSION_H |