// Calculate this frames geometry
output->nw = in->nw;
output->nh = in->nh;
- output->x = in->x + ( out->x - in->x ) * position + 0.5;
- output->y = in->y + ( out->y - in->y ) * position + 0.5;
+ output->x = in->x + ( out->x - in->x ) * position;
+ output->y = in->y + ( out->y - in->y ) * 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->distort = in->distort;
+
+ output->x = ( int )floor( output->x ) & 0xfffffffe;
+ output->w = ( int )floor( output->w ) & 0xfffffffe;
+ output->sw &= 0xfffffffe;
}
void transition_destroy_keys( void *arg )
static void alignment_calculate( struct geometry_s *geometry )
{
- geometry->x += ( geometry->w - geometry->sw ) * geometry->halign / 2 + 0.5;
- geometry->y += ( geometry->h - geometry->sh ) * geometry->valign / 2 + 0.5;
+ geometry->x += ( geometry->w - geometry->sw ) * geometry->halign / 2;
+ geometry->y += ( geometry->h - geometry->sh ) * geometry->valign / 2;
}
/** Calculate the position for this frame.
*/
-static inline float position_calculate( mlt_transition this, mlt_frame frame )
+static float position_calculate( mlt_transition this, mlt_frame frame )
{
// Get the in and out position
mlt_position in = mlt_transition_get_in( this );
int stride_dest = width_dest * bpp;
// Adjust to consumer scale
- int x = geometry.x * width_dest / geometry.nw + 0.5;
- int y = geometry.y * height_dest / geometry.nh + 0.5;
+ int x = geometry.x * width_dest / geometry.nw;
+ int y = geometry.y * height_dest / geometry.nh;
+
+ x &= 0xfffffffe;
+ width_src &= 0xfffffffe;
- if ( bpp == 2 )
- x -= x % 2;
-
// optimization points - no work to do
if ( width_src <= 0 || height_src <= 0 )
return ret;
mlt_properties b_props = mlt_frame_properties( b_frame );
mlt_properties properties = mlt_transition_properties( this );
- // ???: Not getting the logic of this...
- geometry->sw = geometry->w;
- geometry->sh = geometry->h;
-
if ( mlt_properties_get( properties, "distort" ) == NULL && geometry->distort == 0 )
{
// Adjust b_frame pixel aspect
geometry->sw = scaled_width;
geometry->sh = scaled_height;
}
+ else
+ {
+ geometry->sw = geometry->w;
+ geometry->sh = geometry->h;
+ }
// We want to ensure that we bypass resize now...
mlt_properties_set( b_props, "distort", "true" );
alignment_calculate( geometry );
// Adjust to consumer scale
- int x = geometry->x * *width / geometry->nw + 0.5;
- int y = geometry->y * *height / geometry->nh + 0.5;
+ int x = geometry->x * *width / geometry->nw;
+ int y = geometry->y * *height / geometry->nh;
*width = geometry->sw * *width / geometry->nw;
*height = geometry->sh * *height / geometry->nh;
}
-static uint8_t *transition_get_alpha_mask( mlt_frame this )
+struct geometry_s *composite_calculate( struct geometry_s *result, mlt_transition this, mlt_frame a_frame, float position )
{
- // Obtain properties of frame
- mlt_properties properties = mlt_frame_properties( this );
+ // Get the properties from the transition
+ mlt_properties properties = mlt_transition_properties( this );
+
+ // Get the properties from the frame
+ mlt_properties a_props = mlt_frame_properties( a_frame );
+
+ // Structures for geometry
+ struct geometry_s *start = mlt_properties_get_data( properties, "geometries", NULL );
+
+ // Now parse the geometries
+ if ( start == NULL )
+ {
+ // Obtain the normalised width and height from the a_frame
+ int normalised_width = mlt_properties_get_int( a_props, "normalised_width" );
+ int normalised_height = mlt_properties_get_int( a_props, "normalised_height" );
+
+ // Parse the transitions properties
+ start = transition_parse_keys( this, normalised_width, normalised_height );
+ }
- // Return the alpha mask
- return mlt_properties_get_data( properties, "alpha", NULL );
+ // Do the calculation
+ geometry_calculate( result, start, position );
+
+ // Now parse the alignment
+ result->halign = alignment_parse( mlt_properties_get( properties, "halign" ) );
+ result->valign = alignment_parse( mlt_properties_get( properties, "valign" ) );
+
+ return start;
+}
+
+mlt_frame composite_copy_region( mlt_transition this, mlt_frame a_frame )
+{
+ // Create a frame to return
+ mlt_frame b_frame = mlt_frame_init( );
+
+ // Get the properties of the a frame
+ mlt_properties a_props = mlt_frame_properties( a_frame );
+
+ // Get the properties of the b frame
+ mlt_properties b_props = mlt_frame_properties( b_frame );
+
+ // Get the position
+ float position = position_calculate( this, a_frame );
+
+ // Destination image
+ uint8_t *dest = NULL;
+
+ // Get the image and dimensions
+ uint8_t *image = mlt_properties_get_data( a_props, "image", NULL );
+ int width = mlt_properties_get_int( a_props, "width" );
+ int height = mlt_properties_get_int( a_props, "height" );
+
+ // Pointers for copy operation
+ uint8_t *p;
+ uint8_t *q;
+ uint8_t *r;
+
+ // Corrdinates
+ int w = 0;
+ int h = 0;
+ int x = 0;
+ int y = 0;
+
+ // Will need to know region to copy
+ struct geometry_s result;
+
+ // Calculate the region now
+ composite_calculate( &result, this, a_frame, position );
+
+ // Need to scale down to actual dimensions
+ x = result.x * width / result.nw ;
+ y = result.y * height / result.nh;
+ w = result.w * width / result.nw;
+ h = result.h * height / result.nh;
+
+ x &= 0xfffffffe;
+ w &= 0xfffffffe;
+
+ // Now we need to create a new destination image
+ dest = mlt_pool_alloc( w * h * 2 );
+
+ // Copy the region of the image
+ p = image + y * width * 2 + x * 2;
+ q = dest;
+ r = dest + w * h * 2;
+
+ while ( q < r )
+ {
+ memcpy( q, p, w * 2 );
+ q += w * 2;
+ p += width * 2;
+ }
+
+ // Assign to the new frame
+ mlt_properties_set_data( b_props, "image", dest, w * h * 2, mlt_pool_release, NULL );
+ mlt_properties_set_int( b_props, "width", w );
+ mlt_properties_set_int( b_props, "height", h );
+
+ // Return the frame
+ return b_frame;
}
/** Get the image.
// Get the b frame from the stack
mlt_frame b_frame = mlt_frame_pop_frame( a_frame );
- // This compositer is yuv422 only
- *format = mlt_image_yuv422;
-
// Get the transition from the a frame
mlt_transition this = mlt_frame_pop_service( a_frame );
+ // This compositer is yuv422 only
+ *format = mlt_image_yuv422;
+
// Get the image from the a frame
mlt_frame_get_image( a_frame, image, format, width, height, 1 );
// Structures for geometry
struct geometry_s result;
- struct geometry_s *start = mlt_properties_get_data( properties, "geometries", NULL );
// Calculate the position
float position = mlt_properties_get_double( b_props, "relative_position" );
float delta = delta_calculate( this, a_frame );
- // Now parse the geometries
- if ( start == NULL )
- {
- // Obtain the normalised width and height from the a_frame
- int normalised_width = mlt_properties_get_int( a_props, "normalised_width" );
- int normalised_height = mlt_properties_get_int( a_props, "normalised_height" );
-
- // Parse the transitions properties
- start = transition_parse_keys( this, normalised_width, normalised_height );
- }
+ // Do the calculation
+ struct geometry_s *start = composite_calculate( &result, this, a_frame, position );
// Since we are the consumer of the b_frame, we must pass along these
// consumer properties from the a_frame
mlt_properties_set_double( b_props, "consumer_aspect_ratio", mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) );
mlt_properties_set_double( b_props, "consumer_scale", mlt_properties_get_double( a_props, "consumer_scale" ) );
- // Do the calculation
- geometry_calculate( &result, start, position );
-
- // Now parse the alignment
- result.halign = alignment_parse( mlt_properties_get( properties, "halign" ) );
- result.valign = alignment_parse( mlt_properties_get( properties, "valign" ) );
-
// Get the image from the b frame
uint8_t *image_b = NULL;
int width_b = *width;
projects / melted / blobdiff