Beispiel #1
0
static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable ){
	
	mlt_frame b_frame = mlt_frame_pop_frame( a_frame );
	mlt_transition transition = mlt_frame_pop_service( a_frame );
	mlt_properties properties = MLT_TRANSITION_PROPERTIES( transition );
	mlt_properties a_props = MLT_FRAME_PROPERTIES( a_frame );
	mlt_properties b_props = MLT_FRAME_PROPERTIES( b_frame );

	int invert = mlt_properties_get_int( properties, "invert" );

	uint8_t *images[]={NULL,NULL,NULL};

	*format = mlt_image_rgb24a;
	mlt_frame_get_image( a_frame, &images[0], format, width, height, 0 );
	mlt_frame_get_image( b_frame, &images[1], format, width, height, 0 );
	
	double position = mlt_transition_get_position( transition, a_frame );
	mlt_profile profile = mlt_service_profile( MLT_TRANSITION_SERVICE( transition ) );
	double time = position / mlt_profile_fps( profile );
	process_frei0r_item( MLT_TRANSITION_SERVICE(transition), position, time, properties, !invert ? a_frame : b_frame, images, width, height );
	
	*width = mlt_properties_get_int( !invert ? a_props : b_props, "width" );
        *height = mlt_properties_get_int( !invert ? a_props : b_props, "height" );
	*image = mlt_properties_get_data( !invert ? a_props : b_props , "image", NULL );
	return 0;
}
Beispiel #2
0
static int producer_get_image( mlt_frame frame, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable )
{
	
	// Obtain properties of frame
	mlt_properties properties = MLT_FRAME_PROPERTIES( frame );

	// Obtain the producer for this frame
	mlt_producer producer = mlt_properties_get_data( properties, "producer_frei0r", NULL );

	// Obtain properties of producer
	mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );

	// Allocate the image
	int size = *width * ( *height + 1 ) * 2;

	// Allocate the image
	*buffer = mlt_pool_alloc( size );

	// Update the frame
	mlt_properties_set_data( properties, "image", *buffer, size, mlt_pool_release, NULL );
	mlt_properties_set_int( properties, "width", *width );
	mlt_properties_set_int( properties, "height", *height );

	*format = mlt_image_yuv422;
	if ( *buffer != NULL )
	{
		mlt_position in = mlt_producer_get_in( producer );
		mlt_position out = mlt_producer_get_out( producer );
		mlt_position time = mlt_frame_get_position( frame );
		double position = ( double )( time - in ) / ( double )( out - in + 1 );
		process_frei0r_item( producer_type , position, producer_props, frame , buffer, format , width , height , writable );
	}

    return 0;
}
Beispiel #3
0
static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable ){
	
	if (*format!=mlt_image_yuv422 ){
		return -1;
	}
	
	mlt_frame b_frame = mlt_frame_pop_frame( a_frame );
	mlt_transition transition = mlt_frame_pop_service( a_frame );
	mlt_properties properties = MLT_TRANSITION_PROPERTIES( transition );
	mlt_properties a_props = MLT_FRAME_PROPERTIES( a_frame );
	mlt_properties b_props = MLT_FRAME_PROPERTIES( b_frame );

	int invert = mlt_properties_get_int( properties, "invert" );

	if ( mlt_properties_get( a_props, "rescale.interp" ) == NULL || !strcmp( mlt_properties_get( a_props, "rescale.interp" ), "none" ) )
		mlt_properties_set( a_props, "rescale.interp", "nearest" );

	// set consumer_aspect_ratio for a and b frame
	if ( mlt_properties_get_double( a_props, "aspect_ratio" ) == 0.0 )
		mlt_properties_set_double( a_props, "aspect_ratio", mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) );
	if ( mlt_properties_get_double( b_props, "aspect_ratio" ) == 0.0 )
		mlt_properties_set_double( b_props, "aspect_ratio", mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) );
	mlt_properties_set_double( b_props, "consumer_aspect_ratio", mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) );

	if ( mlt_properties_get( b_props, "rescale.interp" ) == NULL || !strcmp( mlt_properties_get( b_props, "rescale.interp" ), "none" ) )
                mlt_properties_set( b_props, "rescale.interp", "nearest" );
	
	uint8_t *images[]={NULL,NULL,NULL};

	mlt_frame_get_image( a_frame, &images[0], format, width, height, 1 );
	mlt_frame_get_image( b_frame, &images[1], format, width, height, 1 );
	
	mlt_position in = mlt_transition_get_in( transition );
	mlt_position out = mlt_transition_get_out( transition );

	// Get the position of the frame
	char *name = mlt_properties_get( MLT_TRANSITION_PROPERTIES( transition ), "_unique_id" );
	mlt_position position = mlt_properties_get_position( MLT_FRAME_PROPERTIES( a_frame ), name );

	float pos=( float )( position - in ) / ( float )( out - in + 1 );
	
	process_frei0r_item( transition_type , pos , properties, !invert ? a_frame : b_frame , images , format, width,height, writable );
	
	*width = mlt_properties_get_int( !invert ? a_props : b_props, "width" );
        *height = mlt_properties_get_int( !invert ? a_props : b_props, "height" );
	*image = mlt_properties_get_data( !invert ? a_props : b_props , "image", NULL );
	return 0;
}
Beispiel #4
0
static int filter_get_image( mlt_frame frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
{

	mlt_filter filter = mlt_frame_pop_service( frame );
	*format = mlt_image_rgb24a;
	mlt_log_debug( MLT_FILTER_SERVICE( filter ), "frei0r %dx%d\n", *width, *height );
	int error = mlt_frame_get_image( frame, image, format, width, height, 0 );

	if ( error == 0 && *image )
	{
		double position = mlt_filter_get_position( filter, frame );
		mlt_profile profile = mlt_service_profile( MLT_FILTER_SERVICE( filter ) );
		double time = position / mlt_profile_fps( profile );
		int length = mlt_filter_get_length2( filter, frame );
		process_frei0r_item( MLT_FILTER_SERVICE(filter), position, time, length, frame, image, width, height );
	}

	return error;
}
Beispiel #5
0
static int producer_get_image( mlt_frame frame, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable )
{
	
	// Obtain properties of frame
	mlt_properties properties = MLT_FRAME_PROPERTIES( frame );

	// Obtain the producer for this frame
	mlt_producer producer = mlt_properties_get_data( properties, "producer_frei0r", NULL );

	// Obtain properties of producer
	mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );

	// Choose suitable out values if nothing specific requested
	if ( *width <= 0 )
		*width = mlt_service_profile( MLT_PRODUCER_SERVICE(producer) )->width;
	if ( *height <= 0 )
		*height = mlt_service_profile( MLT_PRODUCER_SERVICE(producer) )->height;

	// Allocate the image
	int size = *width * ( *height + 1 ) * 4;

	// Allocate the image
	*buffer = mlt_pool_alloc( size );

	// Update the frame
	mlt_frame_set_image( frame, *buffer, size, mlt_pool_release );

	*format = mlt_image_rgb24a;
	if ( *buffer != NULL )
	{
		double position = mlt_frame_get_position( frame );
		mlt_profile profile = mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) );
		double time = position / mlt_profile_fps( profile );
		process_frei0r_item( MLT_PRODUCER_SERVICE(producer), position, time, producer_props, frame, buffer, width, height );
	}

    return 0;
}