static int get_image_b( mlt_frame b_frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
{
mlt_transition self = mlt_frame_pop_service( b_frame );
mlt_frame a_frame = mlt_frame_pop_frame( b_frame );
mlt_properties a_props = MLT_FRAME_PROPERTIES( a_frame );
mlt_properties b_props = MLT_FRAME_PROPERTIES( b_frame );
// Set scaling from A frame if not already provided.
if ( !mlt_properties_get( b_props, "rescale.interp" ) )
{
const char *rescale = mlt_properties_get( a_props, "rescale.interp" );
if ( !rescale || !strcmp( rescale, "none" ) )
rescale = "nearest";
mlt_properties_set( b_props, "rescale.interp", rescale );
}
// Ensure sane aspect ratio
if ( mlt_frame_get_aspect_ratio( b_frame ) == 0.0 )
mlt_frame_set_aspect_ratio( b_frame, mlt_profile_sar( mlt_service_profile( MLT_TRANSITION_SERVICE(self) ) ) );
mlt_properties_pass_list( b_props, a_props,
"consumer_deinterlace, deinterlace_method, consumer_tff" );
return mlt_frame_get_image( b_frame, image, format, width, height, writable );
}
static int get_image_a( mlt_frame a_frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
{
mlt_transition self = mlt_frame_pop_service( a_frame );
mlt_properties a_props = MLT_FRAME_PROPERTIES( a_frame );
// All transitions get scaling
const char *rescale = mlt_properties_get( a_props, "rescale.interp" );
if ( !rescale || !strcmp( rescale, "none" ) )
mlt_properties_set( a_props, "rescale.interp", "nearest" );
// Ensure sane aspect ratio
if ( mlt_frame_get_aspect_ratio( a_frame ) == 0.0 )
mlt_frame_set_aspect_ratio( a_frame, mlt_profile_sar( mlt_service_profile( MLT_TRANSITION_SERVICE(self) ) ) );
return mlt_frame_get_image( a_frame, image, format, width, height, writable );
}
static int filter_get_image( mlt_frame frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
{
// Error we will return
int error = 0;
// Get the watermark filter object
mlt_filter this = mlt_frame_pop_service( frame );
// Get the properties of the filter
mlt_properties properties = MLT_FILTER_PROPERTIES( this );
mlt_service_lock( MLT_FILTER_SERVICE( this ) );
// Get the producer from the filter
mlt_producer producer = mlt_properties_get_data( properties, "producer", NULL );
// Get the composite from the filter
mlt_transition composite = mlt_properties_get_data( properties, "composite", NULL );
// Get the resource to use
char *resource = mlt_properties_get( properties, "resource" );
// Get the old resource
char *old_resource = mlt_properties_get( properties, "_old_resource" );
// Create a composite if we don't have one
if ( composite == NULL )
{
// Create composite via the factory
mlt_profile profile = mlt_service_profile( MLT_FILTER_SERVICE( this ) );
composite = mlt_factory_transition( profile, "composite", NULL );
// Register the composite for reuse/destruction
if ( composite != NULL )
mlt_properties_set_data( properties, "composite", composite, 0, ( mlt_destructor )mlt_transition_close, NULL );
}
// If we have one
if ( composite != NULL )
{
// Get the properties
mlt_properties composite_properties = MLT_TRANSITION_PROPERTIES( composite );
// Pass all the composite. properties on the filter down
mlt_properties_pass( composite_properties, properties, "composite." );
if ( mlt_properties_get( properties, "composite.out" ) == NULL )
mlt_properties_set_int( composite_properties, "out", mlt_properties_get_int( properties, "_out" ) );
// Force a refresh
mlt_properties_set_int( composite_properties, "refresh", 1 );
}
// Create a producer if don't have one
if ( producer == NULL || ( old_resource != NULL && strcmp( resource, old_resource ) ) )
{
// Get the factory producer service
char *factory = mlt_properties_get( properties, "factory" );
// Create the producer
mlt_profile profile = mlt_service_profile( MLT_FILTER_SERVICE( this ) );
producer = mlt_factory_producer( profile, factory, resource );
// If we have one
if ( producer != NULL )
{
// Register the producer for reuse/destruction
mlt_properties_set_data( properties, "producer", producer, 0, ( mlt_destructor )mlt_producer_close, NULL );
// Ensure that we loop
mlt_properties_set( MLT_PRODUCER_PROPERTIES( producer ), "eof", "loop" );
// Set the old resource
mlt_properties_set( properties, "_old_resource", resource );
}
}
if ( producer != NULL )
{
// Get the producer properties
mlt_properties producer_properties = MLT_PRODUCER_PROPERTIES( producer );
// Now pass all producer. properties on the filter down
mlt_properties_pass( producer_properties, properties, "producer." );
}
mlt_service_unlock( MLT_FILTER_SERVICE( this ) );
// Only continue if we have both producer and composite
if ( composite != NULL && producer != NULL )
{
// Get the service of the producer
mlt_service service = MLT_PRODUCER_SERVICE( producer );
// We will get the 'b frame' from the producer
mlt_frame b_frame = NULL;
// Get the original producer position
mlt_position position = mlt_filter_get_position( this, frame );
// Make sure the producer is in the correct position
mlt_producer_seek( producer, position );
// Resetting position to appease the composite transition
mlt_frame_set_position( frame, position );
// Get the b frame and process with composite if successful
if ( mlt_service_get_frame( service, &b_frame, 0 ) == 0 )
{
// Get the a and b frame properties
mlt_properties a_props = MLT_FRAME_PROPERTIES( frame );
mlt_properties b_props = MLT_FRAME_PROPERTIES( b_frame );
mlt_profile profile = mlt_service_profile( service );
// Set the b frame to be in the same position and have same consumer requirements
mlt_frame_set_position( b_frame, position );
mlt_properties_set_int( b_props, "consumer_deinterlace", mlt_properties_get_int( a_props, "consumer_deinterlace" ) || mlt_properties_get_int( properties, "deinterlace" ) );
// Check for the special case - no aspect ratio means no problem :-)
if ( mlt_frame_get_aspect_ratio( b_frame ) == 0 )
mlt_frame_set_aspect_ratio( b_frame, mlt_profile_sar( profile ) );
if ( mlt_frame_get_aspect_ratio( frame ) == 0 )
mlt_frame_set_aspect_ratio( frame, mlt_profile_sar( profile ) );
if ( mlt_properties_get_int( properties, "distort" ) )
{
mlt_properties_set_int( MLT_TRANSITION_PROPERTIES( composite ), "distort", 1 );
mlt_properties_set_int( a_props, "distort", 1 );
mlt_properties_set_int( b_props, "distort", 1 );
}
*format = mlt_image_yuv422;
if ( mlt_properties_get_int( properties, "reverse" ) == 0 )
{
// Apply all filters that are attached to this filter to the b frame
mlt_service_apply_filters( MLT_FILTER_SERVICE( this ), b_frame, 0 );
// Process the frame
mlt_transition_process( composite, frame, b_frame );
// Get the image
error = mlt_frame_get_image( frame, image, format, width, height, 1 );
}
else
{
char temp[ 132 ];
int count = 0;
uint8_t *alpha = NULL;
const char *rescale = mlt_properties_get( a_props, "rescale.interp" );
if ( rescale == NULL || !strcmp( rescale, "none" ) )
rescale = "hyper";
mlt_transition_process( composite, b_frame, frame );
mlt_properties_set_int( a_props, "consumer_deinterlace", 1 );
mlt_properties_set_int( b_props, "consumer_deinterlace", 1 );
mlt_properties_set( a_props, "rescale.interp", rescale );
mlt_properties_set( b_props, "rescale.interp", rescale );
mlt_service_apply_filters( MLT_FILTER_SERVICE( this ), b_frame, 0 );
error = mlt_frame_get_image( b_frame, image, format, width, height, 1 );
alpha = mlt_frame_get_alpha_mask( b_frame );
mlt_frame_set_image( frame, *image, *width * *height * 2, NULL );
mlt_frame_set_alpha( frame, alpha, *width * *height, NULL );
mlt_properties_set_int( a_props, "width", *width );
mlt_properties_set_int( a_props, "height", *height );
mlt_properties_set_int( a_props, "progressive", 1 );
mlt_properties_inc_ref( b_props );
strcpy( temp, "_b_frame" );
while( mlt_properties_get_data( a_props, temp, NULL ) != NULL )
sprintf( temp, "_b_frame%d", count ++ );
mlt_properties_set_data( a_props, temp, b_frame, 0, ( mlt_destructor )mlt_frame_close, NULL );
}
}
// Close the b frame
mlt_frame_close( b_frame );
}
else
{
// Get the image from the frame without running fx
error = mlt_frame_get_image( frame, image, format, width, height, 1 );
}
return error;
}
static int filter_get_image( mlt_frame frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
{
int error = 0;
// Get the properties from the frame
mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
// Pop the top of stack now
mlt_filter filter = mlt_frame_pop_service( frame );
mlt_profile profile = mlt_service_profile( MLT_FILTER_SERVICE( filter ) );
// Retrieve the aspect ratio
double aspect_ratio = mlt_deque_pop_back_double( MLT_FRAME_IMAGE_STACK( frame ) );
double consumer_aspect = mlt_profile_sar( mlt_service_profile( MLT_FILTER_SERVICE( filter ) ) );
// Correct Width/height if necessary
if ( *width == 0 || *height == 0 )
{
*width = profile->width;
*height = profile->height;
}
// Assign requested width/height from our subordinate
int owidth = *width;
int oheight = *height;
// Check for the special case - no aspect ratio means no problem :-)
if ( aspect_ratio == 0.0 )
aspect_ratio = consumer_aspect;
// Reset the aspect ratio
mlt_properties_set_double( properties, "aspect_ratio", aspect_ratio );
// XXX: This is a hack, but it forces the force_full_luma to apply by doing a RGB
// conversion because range scaling only occurs on YUV->RGB. And we do it here,
// after the deinterlace filter, which only operates in YUV to avoid a YUV->RGB->YUV->?.
// Instead, it will go YUV->RGB->?.
if ( mlt_properties_get_int( properties, "force_full_luma" ) )
*format = mlt_image_rgb24a;
// Hmmm...
char *rescale = mlt_properties_get( properties, "rescale.interp" );
if ( rescale != NULL && !strcmp( rescale, "none" ) )
return mlt_frame_get_image( frame, image, format, width, height, writable );
if ( mlt_properties_get_int( properties, "distort" ) == 0 )
{
// Normalise the input and out display aspect
int normalised_width = profile->width;
int normalised_height = profile->height;
int real_width = mlt_properties_get_int( properties, "meta.media.width" );
int real_height = mlt_properties_get_int( properties, "meta.media.height" );
if ( real_width == 0 )
real_width = mlt_properties_get_int( properties, "width" );
if ( real_height == 0 )
real_height = mlt_properties_get_int( properties, "height" );
double input_ar = aspect_ratio * real_width / real_height;
double output_ar = consumer_aspect * owidth / oheight;
// fprintf( stderr, "real %dx%d normalised %dx%d output %dx%d sar %f in-dar %f out-dar %f\n",
// real_width, real_height, normalised_width, normalised_height, owidth, oheight, aspect_ratio, input_ar, output_ar);
// Optimised for the input_ar > output_ar case (e.g. widescreen on standard)
int scaled_width = rint( ( input_ar * normalised_width ) / output_ar );
int scaled_height = normalised_height;
// Now ensure that our images fit in the output frame
if ( scaled_width > normalised_width )
{
scaled_width = normalised_width;
scaled_height = rint( ( output_ar * normalised_height ) / input_ar );
}
// Now calculate the actual image size that we want
owidth = rint( scaled_width * owidth / normalised_width );
oheight = rint( scaled_height * oheight / normalised_height );
// Tell frame we have conformed the aspect to the consumer
mlt_frame_set_aspect_ratio( frame, consumer_aspect );
}
mlt_properties_set_int( properties, "distort", 0 );
// Now pass on the calculations down the line
mlt_properties_set_int( properties, "resize_width", *width );
mlt_properties_set_int( properties, "resize_height", *height );
// If there will be padding, then we need packed image format.
if ( *format == mlt_image_yuv420p )
{
int iwidth = mlt_properties_get_int( properties, "width" );
int iheight = mlt_properties_get_int( properties, "height" );
if ( iwidth < owidth || iheight < oheight )
*format = mlt_image_yuv422;
}
// Now get the image
if ( *format == mlt_image_yuv422 )
owidth -= owidth % 2;
error = mlt_frame_get_image( frame, image, format, &owidth, &oheight, writable );
if ( error == 0 && *image )
{
int bpp;
mlt_image_format_size( *format, owidth, oheight, &bpp );
*image = frame_resize_image( frame, *width, *height, bpp );
}
return error;
}
static int filter_get_image( mlt_frame frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
{
// Get the filter
mlt_filter filter = mlt_frame_pop_service( frame );
// Get the properties
mlt_properties properties = MLT_FILTER_PROPERTIES( filter );
// Get the image
int error = 0;
*format = mlt_image_rgb24a;
// Only process if we have no error and a valid colour space
if ( error == 0 )
{
mlt_service_lock( MLT_FILTER_SERVICE( filter ) );
mlt_producer producer = mlt_properties_get_data( properties, "producer", NULL );
mlt_transition transition = mlt_properties_get_data( properties, "transition", NULL );
mlt_frame a_frame = NULL;
mlt_profile profile = mlt_service_profile( MLT_FILTER_SERVICE( filter ) );
if ( producer == NULL )
{
char *background = mlt_properties_get( properties, "background" );
producer = mlt_factory_producer( profile, NULL, background );
mlt_properties_set_data( properties, "producer", producer, 0, (mlt_destructor)mlt_producer_close, NULL );
}
if ( transition == NULL )
{
transition = mlt_factory_transition( profile, "qtblend", NULL );
mlt_properties_set_data( properties, "transition", transition, 0, (mlt_destructor)mlt_transition_close, NULL );
if ( transition )
mlt_properties_set_int( MLT_TRANSITION_PROPERTIES( transition ), "b_alpha", 1 );
}
if ( producer != NULL && transition != NULL )
{
mlt_position position = mlt_filter_get_position( filter, frame );
mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
mlt_position in = mlt_filter_get_in( filter );
mlt_position out = mlt_filter_get_out( filter );
double consumer_ar = mlt_profile_sar( profile );
mlt_transition_set_in_and_out( transition, in, out );
if ( out > 0 ) {
mlt_properties_set_position( MLT_PRODUCER_PROPERTIES( producer ), "length", out - in + 1 );
mlt_producer_set_in_and_out( producer, in, out );
}
mlt_producer_seek( producer, in + position );
mlt_frame_set_position( frame, position );
mlt_properties_pass( MLT_PRODUCER_PROPERTIES( producer ), properties, "producer." );
mlt_properties_pass( MLT_TRANSITION_PROPERTIES( transition ), properties, "transition." );
mlt_service_get_frame( MLT_PRODUCER_SERVICE( producer ), &a_frame, 0 );
mlt_frame_set_position( a_frame, in + position );
// Set the rescale interpolation to match the frame
mlt_properties_set( MLT_FRAME_PROPERTIES( a_frame ), "rescale.interp", mlt_properties_get( frame_properties, "rescale.interp" ) );
// Special case - aspect_ratio = 0
if ( mlt_frame_get_aspect_ratio( frame ) == 0 )
mlt_frame_set_aspect_ratio( frame, consumer_ar );
if ( mlt_frame_get_aspect_ratio( a_frame ) == 0 )
mlt_frame_set_aspect_ratio( a_frame, consumer_ar );
// Add the qtblend transition onto the frame stack
mlt_service_unlock( MLT_FILTER_SERVICE( filter ) );
mlt_transition_process( transition, a_frame, frame );
if ( mlt_properties_get_int( properties, "use_normalised" ) )
{
// Use the normalised width & height
mlt_profile profile = mlt_service_profile( MLT_FILTER_SERVICE( filter ) );
*width = profile->width;
*height = profile->height;
}
mlt_frame_get_image( a_frame, image, format, width, height, writable );
mlt_properties_set_data( frame_properties, "affine_frame", a_frame, 0, (mlt_destructor)mlt_frame_close, NULL );
mlt_frame_set_image( frame, *image, *width * *height * 4, NULL );
//mlt_frame_set_alpha( frame, mlt_frame_get_alpha_mask( a_frame ), *width * *height, NULL );
}
else
{
mlt_service_unlock( MLT_FILTER_SERVICE( filter ) );
}
}
return error;
}
