qtmobility/plugins/multimedia/gstreamer/mediacapture/qgstreamercaptureservice.cpp
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#include "qgstreamercaptureservice.h"
#include "qgstreamercapturesession.h"
#include "qgstreamerrecordercontrol.h"
#include "qgstreamermediacontainercontrol.h"
#include "qgstreameraudioencode.h"
#include "qgstreamervideoencode.h"
#include "qgstreamerimageencode.h"
#include "qgstreamerbushelper.h"
#include "qgstreamercameracontrol.h"
#include "qgstreamercapturemetadatacontrol.h"
#include "qgstreamervideooutputcontrol.h"
#include "qgstreameraudioinputendpointselector.h"
#include "qgstreamervideoinputdevicecontrol.h"
#include "qgstreamerimagecapturecontrol.h"
#include "qgstreamervideooverlay.h"
#include "qgstreamervideorenderer.h"
#include "qgstreamervideowidget.h"
#include <qmediaserviceprovider.h>
class QGstreamerVideoRendererWrapper : public QGstreamerElementFactory
{
public:
QGstreamerVideoRendererWrapper(QGstreamerVideoRendererInterface *videoRenderer)
:m_videoRenderer(videoRenderer),
m_bin(0),
m_element(0),
m_colorspace(0)
{
}
virtual ~QGstreamerVideoRendererWrapper()
{
if (m_bin)
gst_object_unref(GST_OBJECT(m_bin));
}
GstElement *buildElement()
{
if (m_bin == NULL) {
GstBin * bin = GST_BIN(gst_bin_new(NULL));
m_colorspace = gst_element_factory_make("ffmpegcolorspace", NULL);
m_element = m_videoRenderer->videoSink();
gst_bin_add(bin, m_colorspace);
gst_bin_add(bin, m_element);
gst_element_link(m_colorspace, m_element);
// add ghostpads
GstPad *pad = gst_element_get_static_pad(m_colorspace, "sink");
gst_element_add_pad(GST_ELEMENT(bin), gst_ghost_pad_new("sink", pad));
gst_object_unref(GST_OBJECT(pad));
m_bin = GST_ELEMENT(bin);
}
m_videoRenderer->precessNewStream();
gst_object_ref(GST_OBJECT(m_bin));
return m_bin;
}
void prepareWinId()
{
m_videoRenderer->precessNewStream();
}
private:
QGstreamerVideoRendererInterface *m_videoRenderer;
GstElement *m_bin;
GstElement *m_element;
GstElement *m_colorspace;
};
QGstreamerCaptureService::QGstreamerCaptureService(const QString &service, QObject *parent):
QMediaService(parent)
{
static bool initialized = false;
if (!initialized) {
initialized = true;
gst_init(NULL, NULL);
}
m_captureSession = 0;
m_cameraControl = 0;
m_metaDataControl = 0;
m_audioInputEndpointSelector = 0;
m_videoInputDevice = 0;
m_videoOutput = 0;
m_videoRenderer = 0;
m_videoRendererFactory = 0;
m_videoWindow = 0;
m_videoWindowFactory = 0;
m_videoWidgetControl = 0;
m_videoWidgetFactory = 0;
m_imageCaptureControl = 0;
if (service == Q_MEDIASERVICE_AUDIOSOURCE) {
m_captureSession = new QGstreamerCaptureSession(QGstreamerCaptureSession::Audio, this);
}
if (service == Q_MEDIASERVICE_CAMERA) {
m_captureSession = new QGstreamerCaptureSession(QGstreamerCaptureSession::AudioAndVideo, this);
m_cameraControl = new QGstreamerCameraControl(m_captureSession);
m_captureSession->setVideoInput(m_cameraControl);
m_videoInputDevice = new QGstreamerVideoInputDeviceControl(m_captureSession);
m_imageCaptureControl = new QGstreamerImageCaptureControl(m_captureSession);
connect(m_videoInputDevice, SIGNAL(selectedDeviceChanged(QString)),
m_cameraControl, SLOT(setDevice(QString)));
if (m_videoInputDevice->deviceCount())
m_cameraControl->setDevice(m_videoInputDevice->deviceName(m_videoInputDevice->selectedDevice()));
m_videoOutput = new QGstreamerVideoOutputControl(this);
connect(m_videoOutput, SIGNAL(outputChanged(QVideoOutputControl::Output)),
this, SLOT(videoOutputChanged(QVideoOutputControl::Output)));
m_videoRenderer = new QGstreamerVideoRenderer(this);
m_videoRendererFactory = new QGstreamerVideoRendererWrapper(m_videoRenderer);
m_videoWindow = new QGstreamerVideoOverlay(this);
m_videoWindowFactory = new QGstreamerVideoRendererWrapper(m_videoWindow);
m_videoWidgetControl = new QGstreamerVideoWidgetControl(this);
m_videoWidgetFactory = new QGstreamerVideoRendererWrapper(m_videoWidgetControl);
m_videoOutput->setAvailableOutputs(QList<QVideoOutputControl::Output>()
<< QVideoOutputControl::RendererOutput
<< QVideoOutputControl::WindowOutput
<< QVideoOutputControl::WidgetOutput);
}
m_audioInputEndpointSelector = new QGstreamerAudioInputEndpointSelector(this);
connect(m_audioInputEndpointSelector, SIGNAL(activeEndpointChanged(QString)), m_captureSession, SLOT(setCaptureDevice(QString)));
if (m_captureSession && m_audioInputEndpointSelector->availableEndpoints().size() > 0)
m_captureSession->setCaptureDevice(m_audioInputEndpointSelector->defaultEndpoint());
m_metaDataControl = new QGstreamerCaptureMetaDataControl(this);
connect(m_metaDataControl, SIGNAL(metaDataChanged(QMap<QByteArray,QVariant>)),
m_captureSession, SLOT(setMetaData(QMap<QByteArray,QVariant>)));
}
QGstreamerCaptureService::~QGstreamerCaptureService()
{
}
QMediaControl *QGstreamerCaptureService::control(const char *name) const
{
if (qstrcmp(name, QVideoOutputControl_iid) == 0)
return m_videoOutput;
if (qstrcmp(name, QVideoRendererControl_iid) == 0)
return m_videoRenderer;
if (qstrcmp(name, QVideoWindowControl_iid) == 0)
return m_videoWindow;
if (qstrcmp(name, QVideoWidgetControl_iid) == 0)
return m_videoWidgetControl;
if (qstrcmp(name,QAudioEndpointSelector_iid) == 0)
return m_audioInputEndpointSelector;
if (qstrcmp(name,QVideoDeviceControl_iid) == 0)
return m_videoInputDevice;
if (qstrcmp(name,QMediaRecorderControl_iid) == 0)
return m_captureSession->recorderControl();
if (qstrcmp(name,QAudioEncoderControl_iid) == 0)
return m_captureSession->audioEncodeControl();
if (qstrcmp(name,QVideoEncoderControl_iid) == 0)
return m_captureSession->videoEncodeControl();
if (qstrcmp(name,QImageEncoderControl_iid) == 0)
return m_captureSession->imageEncodeControl();
if (qstrcmp(name,QMediaContainerControl_iid) == 0)
return m_captureSession->mediaContainerControl();
if (qstrcmp(name,QCameraControl_iid) == 0)
return m_cameraControl;
if (qstrcmp(name,QMetaDataControl_iid) == 0)
return m_metaDataControl;
if (qstrcmp(name, QImageCaptureControl_iid) == 0)
return m_imageCaptureControl;
return 0;
}
void QGstreamerCaptureService::videoOutputChanged(QVideoOutputControl::Output output)
{
switch (output) {
case QVideoOutputControl::NoOutput:
m_captureSession->setVideoPreview(0);
break;
case QVideoOutputControl::RendererOutput:
m_captureSession->setVideoPreview(m_videoRendererFactory);
break;
case QVideoOutputControl::WindowOutput:
m_captureSession->setVideoPreview(m_videoWindowFactory);
break;
case QVideoOutputControl::WidgetOutput:
m_captureSession->setVideoPreview(m_videoWidgetFactory);
break;
default:
qWarning("Invalid video output selection");
m_captureSession->setVideoPreview(0);
break;
}
}