#include <stdlib.h>
#include <ctype.h>
#include <string.h>
+#include <math.h>
/** Geometry struct.
*/
// Search in for position
struct geometry_s *out = in->next;
+ if ( position >= 1.0 )
+ {
+ int section = floor( position );
+ position -= section;
+ if ( section % 2 == 1 )
+ position = 1.0 - position;
+ }
+
while ( out->next != NULL )
{
if ( position >= in->position && position < out->position )
output->w = in->w + ( out->w - in->w ) * position;
output->h = in->h + ( out->h - in->h ) * position;
output->mix = in->mix + ( out->mix - in->mix ) * position;
+ output->sw = output->w;
+ output->sh = output->h;
output->distort = in->distort;
}
+void transition_destroy_keys( void *arg )
+{
+ struct geometry_s *ptr = arg;
+ struct geometry_s *next = NULL;
+
+ while ( ptr != NULL )
+ {
+ next = ptr->next;
+ free( ptr );
+ ptr = next;
+ }
+}
+
+static struct geometry_s *transition_parse_keys( mlt_transition this, int normalised_width, int normalised_height )
+{
+ // Loop variable for property interrogation
+ int i = 0;
+
+ // Get the properties of the transition
+ mlt_properties properties = mlt_transition_properties( this );
+
+ // Get the in and out position
+ mlt_position in = mlt_transition_get_in( this );
+ mlt_position out = mlt_transition_get_out( this );
+
+ // Create the start
+ struct geometry_s *start = calloc( 1, sizeof( struct geometry_s ) );
+
+ // Create the end (we always need two entries)
+ struct geometry_s *end = calloc( 1, sizeof( struct geometry_s ) );
+
+ // Pointer
+ struct geometry_s *ptr = start;
+
+ // Parse the start property
+ geometry_parse( start, NULL, mlt_properties_get( properties, "start" ), normalised_width, normalised_height );
+
+ // Parse the keys in between
+ for ( i = 0; i < mlt_properties_count( properties ); i ++ )
+ {
+ // Get the name of the property
+ char *name = mlt_properties_get_name( properties, i );
+
+ // Check that it's valid
+ if ( !strncmp( name, "key[", 4 ) )
+ {
+ // Get the value of the property
+ char *value = mlt_properties_get_value( properties, i );
+
+ // Determine the frame number
+ int frame = atoi( name + 4 );
+
+ // Determine the position
+ float position = 0;
+
+ if ( frame >= 0 && frame < ( out - in ) )
+ position = ( float )frame / ( float )( out - in + 1 );
+ else if ( frame < 0 && - frame < ( out - in ) )
+ position = ( float )( out - in + frame ) / ( float )( out - in + 1 );
+
+ // For now, we'll exclude all keys received out of order
+ if ( position > ptr->position )
+ {
+ // Create a new geometry
+ struct geometry_s *temp = calloc( 1, sizeof( struct geometry_s ) );
+
+ // Parse and add to the list
+ geometry_parse( temp, ptr, value, normalised_width, normalised_height );
+
+ // Assign the position
+ temp->position = position;
+
+ // Allow the next to be appended after this one
+ ptr = temp;
+ }
+ else
+ {
+ fprintf( stderr, "Key out of order - skipping %s\n", name );
+ }
+ }
+ }
+
+ // Parse the end
+ geometry_parse( end, ptr, mlt_properties_get( properties, "end" ), normalised_width, normalised_height );
+ if ( out > 0 )
+ end->position = ( float )( out - in ) / ( float )( out - in + 1 );
+ else
+ end->position = 1;
+
+ // Assign to properties to ensure we get destroyed
+ mlt_properties_set_data( properties, "geometries", start, 0, transition_destroy_keys, NULL );
+
+ return start;
+}
+
/** Parse the alignment properties into the geometry.
*/
int ret = 0;
mlt_image_format format = mlt_image_yuv422;
- // Initialise the scaled dimensions from the computed
- geometry->sw = geometry->w;
- geometry->sh = geometry->h;
-
- // Compute the dimensioning rectangle
+ // Get the properties objects
mlt_properties b_props = mlt_frame_properties( b_frame );
mlt_properties properties = mlt_transition_properties( this );
int normalised_height = geometry->h;
int real_width = get_value( b_props, "real_width", "width" );
int real_height = get_value( b_props, "real_height", "height" );
+ double input_ar = mlt_frame_get_aspect_ratio( b_frame );
+ double output_ar = mlt_properties_get_double( b_props, "consumer_aspect_ratio" );
int scaled_width = real_width;
int scaled_height = real_height;
+ double output_sar = ( double ) geometry->nw / geometry->nh / output_ar;
+ // If the output is fat pixels (NTSC) then stretch our input horizontally
+ // derived from: output_sar / input_sar * real_width
+ scaled_width = output_sar * real_height * input_ar;
+
// Now ensure that our images fit in the normalised frame
if ( scaled_width > normalised_width )
{
scaled_height = normalised_height;
}
- // Now we need to align to the geometry
- if ( scaled_width <= geometry->w && scaled_height <= geometry->h )
+ // Now apply the fill
+ // TODO: Should combine fill/distort in one property
+ if ( mlt_properties_get( properties, "fill" ) != NULL )
{
- // Save the new scaled dimensions
- geometry->sw = scaled_width;
- geometry->sh = scaled_height;
+ scaled_width = ( geometry->w / scaled_width ) * scaled_width;
+ scaled_height = ( geometry->h / scaled_height ) * scaled_height;
}
+
+ // Save the new scaled dimensions
+ geometry->sw = scaled_width;
+ geometry->sh = scaled_height;
}
// We want to ensure that we bypass resize now...
return mlt_properties_get_data( properties, "alpha", NULL );
}
-void transition_destroy_keys( void *arg )
-{
- struct geometry_s *ptr = arg;
- struct geometry_s *next = NULL;
-
- while ( ptr != NULL )
- {
- next = ptr->next;
- free( ptr );
- ptr = next;
- }
-}
-
-static struct geometry_s *transition_parse_keys( mlt_transition this, int normalised_width, int normalised_height )
-{
- // Loop variable for property interrogation
- int i = 0;
-
- // Get the properties of the transition
- mlt_properties properties = mlt_transition_properties( this );
-
- // Get the in and out position
- mlt_position in = mlt_transition_get_in( this );
- mlt_position out = mlt_transition_get_out( this );
-
- // Create the start
- struct geometry_s *start = calloc( 1, sizeof( struct geometry_s ) );
-
- // Create the end (we always need two entries)
- struct geometry_s *end = calloc( 1, sizeof( struct geometry_s ) );
-
- // Pointer
- struct geometry_s *ptr = start;
-
- // Parse the start property
- geometry_parse( start, NULL, mlt_properties_get( properties, "start" ), normalised_width, normalised_height );
-
- // Parse the keys in between
- for ( i = 0; i < mlt_properties_count( properties ); i ++ )
- {
- // Get the name of the property
- char *name = mlt_properties_get_name( properties, i );
-
- // Check that it's valid
- if ( !strncmp( name, "key[", 4 ) )
- {
- // Get the value of the property
- char *value = mlt_properties_get_value( properties, i );
-
- // Determine the frame number
- int frame = atoi( name + 4 );
-
- // Determine the position
- float position = 0;
-
- if ( frame >= 0 && frame < ( out - in ) )
- position = ( float )frame / ( float )( out - in + 1 );
- else if ( frame < 0 && - frame < ( out - in ) )
- position = ( float )( out - in + frame ) / ( float )( out - in + 1 );
-
- // For now, we'll exclude all keys received out of order
- if ( position > ptr->position )
- {
- // Create a new geometry
- struct geometry_s *temp = calloc( 1, sizeof( struct geometry_s ) );
-
- // Parse and add to the list
- geometry_parse( temp, ptr, value, normalised_width, normalised_height );
-
- // Assign the position
- temp->position = position;
-
- // Allow the next to be appended after this one
- ptr = temp;
- }
- else
- {
- fprintf( stderr, "Key out of order - skipping %s\n", name );
- }
- }
- }
-
- // Parse the end
- geometry_parse( end, ptr, mlt_properties_get( properties, "end" ), normalised_width, normalised_height );
- end->position = ( float )( out - in ) / ( float )( out - in + 1 );
-
- // Assign to properties to ensure we get destroyed
- mlt_properties_set_data( properties, "geometries", start, 0, transition_destroy_keys, NULL );
-
- return start;
-}
-
/** Get the image.
*/
result.valign = alignment_parse( mlt_properties_get( properties, "valign" ) );
// Get the image from the b frame
- uint8_t *image_b;
+ uint8_t *image_b = NULL;
int width_b = *width;
int height_b = *height;
projects / melted / blobdiff