C++ (Cpp) vaCreateSubpicture Examples

Example #1

File: VAApiWriter.cpp Project: JandunCN/QMPlay2

void VAApiWriter::draw( VASurfaceID _id, int _field )
{
	if ( _id != VA_INVALID_SURFACE && _field > -1 )
	{
		if ( id != _id || _field == field )
			vaSyncSurface( VADisp, _id );
		id = _id;
		field = _field;
	}
	if ( id == VA_INVALID_SURFACE )
		return;

	bool associated = false;

	osd_mutex.lock();
	if ( !osd_list.isEmpty() )
	{
		QRect bounds;
		const qreal scaleW = ( qreal )W / outW, scaleH = ( qreal )H / outH;
		bool mustRepaint = Functions::mustRepaintOSD( osd_list, osd_checksums, &scaleW, &scaleH, &bounds );
		if ( !mustRepaint )
			mustRepaint = vaImgSize != bounds.size();
		bool canAssociate = !mustRepaint;
		if ( mustRepaint )
		{
			if ( vaImgSize != bounds.size() )
			{
				clearRGBImage();
				vaImgSize = QSize();
				if ( vaCreateImage( VADisp, rgbImgFmt, bounds.width(), bounds.height(), &vaImg ) == VA_STATUS_SUCCESS )
				{
					if ( vaCreateSubpicture( VADisp, vaImg.image_id, &vaSubpicID ) == VA_STATUS_SUCCESS )
						vaImgSize = bounds.size();
					else
						clearRGBImage();
				}
			}
			if ( vaSubpicID )
			{
				quint8 *buff;
				if ( vaMapBuffer( VADisp, vaImg.buf, ( void ** )&buff ) == VA_STATUS_SUCCESS )
				{
					QImage osdImg( buff += vaImg.offsets[ 0 ], vaImg.pitches[ 0 ] >> 2, bounds.height(), QImage::Format_ARGB32 );
					osdImg.fill( 0 );
					QPainter p( &osdImg );
					p.translate( -bounds.topLeft() );
					Functions::paintOSD( osd_list, scaleW, scaleH, p, &osd_checksums );
					vaUnmapBuffer( VADisp, vaImg.buf );
					canAssociate = true;
				}
			}
		}

Example #2

File: gstvaapisubpicture.c Project: 01org/iotg-lin-gfx-gstreamer-vaapi

static gboolean
gst_vaapi_subpicture_create (GstVaapiSubpicture * subpicture,
    GstVaapiImage * image)
{
  GstVaapiDisplay *const display = GST_VAAPI_OBJECT_DISPLAY (subpicture);
  VASubpictureID subpicture_id;
  VAStatus status;

  GST_VAAPI_DISPLAY_LOCK (display);
  status = vaCreateSubpicture (GST_VAAPI_DISPLAY_VADISPLAY (display),
      GST_VAAPI_OBJECT_ID (image), &subpicture_id);
  GST_VAAPI_DISPLAY_UNLOCK (display);
  if (!vaapi_check_status (status, "vaCreateSubpicture()"))
    return FALSE;

  GST_DEBUG ("subpicture %" GST_VAAPI_ID_FORMAT,
      GST_VAAPI_ID_ARGS (subpicture_id));
  GST_VAAPI_OBJECT_ID (subpicture) = subpicture_id;
  subpicture->image = gst_vaapi_object_ref (image);
  return TRUE;
}