#include <stdio.h>
#include <string.h>
-static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
+static int filter_get_image( mlt_frame frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
{
// Get the image
- mlt_filter filter = mlt_frame_pop_service( this );
+ mlt_filter filter = mlt_frame_pop_service( frame );
mlt_properties properties = MLT_FILTER_PROPERTIES( filter );
- mlt_properties props = MLT_FRAME_PROPERTIES( this );
+ mlt_properties props = MLT_FRAME_PROPERTIES( frame );
mlt_frame freeze_frame = NULL;;
int freeze_before = mlt_properties_get_int( properties, "freeze_before" );
int freeze_after = mlt_properties_get_int( properties, "freeze_after" );
- mlt_position pos = mlt_properties_get_position( properties, "frame" );
- mlt_position currentpos = mlt_properties_get_position( properties, "_seek_frame" );
+ mlt_position pos = mlt_properties_get_position( properties, "frame" ) + mlt_producer_get_in( mlt_frame_get_original_producer( frame ) );
+ mlt_position currentpos = mlt_filter_get_position( filter, frame );
int do_freeze = 0;
if (freeze_before == 0 && freeze_after == 0) {
}
if (do_freeze == 1) {
+ mlt_service_lock( MLT_FILTER_SERVICE( filter ) );
freeze_frame = mlt_properties_get_data( properties, "freeze_frame", NULL );
- if( freeze_frame == NULL || mlt_properties_get_position( properties, "_frame" ) != pos || mlt_properties_get_int( props , "width" ) != mlt_properties_get_int( MLT_FRAME_PROPERTIES( freeze_frame ), "width" ) || mlt_properties_get_int( props , "height" ) != mlt_properties_get_int( MLT_FRAME_PROPERTIES( freeze_frame ), "height" ) )
+ if ( !freeze_frame || mlt_properties_get_position( properties, "_frame" ) != pos )
{
// freeze_frame has not been fetched yet or is not useful, so fetch it and cache it.
- mlt_producer producer = mlt_frame_get_original_producer(this);
+ // get parent producer
+ mlt_producer producer = mlt_producer_cut_parent( mlt_frame_get_original_producer( frame ) );
mlt_producer_seek( producer, pos );
-
+
// Get the frame
mlt_service_get_frame( mlt_producer_service(producer), &freeze_frame, 0 );
mlt_properties freeze_properties = MLT_FRAME_PROPERTIES( freeze_frame );
- mlt_properties_set_double( freeze_properties, "consumer_aspect_ratio", mlt_properties_get_double( props, "consumer_aspect_ratio" ) );
mlt_properties_set( freeze_properties, "rescale.interp", mlt_properties_get( props, "rescale.interp" ) );
- mlt_properties_set_double( freeze_properties, "aspect_ratio", mlt_frame_get_aspect_ratio( this ) );
+ mlt_properties_set_double( freeze_properties, "aspect_ratio", mlt_frame_get_aspect_ratio( frame ) );
mlt_properties_set_int( freeze_properties, "progressive", mlt_properties_get_int( props, "progressive" ) );
mlt_properties_set_int( freeze_properties, "consumer_deinterlace", mlt_properties_get_int( props, "consumer_deinterlace" ) || mlt_properties_get_int( properties, "deinterlace" ) );
- mlt_properties_set_double( freeze_properties, "output_ratio", mlt_properties_get_double( props, "output_ratio" ) );
mlt_properties_set_data( properties, "freeze_frame", freeze_frame, 0, ( mlt_destructor )mlt_frame_close, NULL );
mlt_properties_set_position( properties, "_frame", pos );
}
+ mlt_service_unlock( MLT_FILTER_SERVICE( filter ) );
// Get frozen image
uint8_t *buffer = NULL;
int error = mlt_frame_get_image( freeze_frame, &buffer, format, width, height, 1 );
- int size = 0;
- switch ( *format )
- {
- case mlt_image_yuv420p:
- size = *width * 3 * ( *height + 1 ) / 2;
- break;
- case mlt_image_rgb24:
- size = *width * ( *height + 1 ) * 3;
- break;
- case mlt_image_rgb24a:
- case mlt_image_opengl:
- size = *width * ( *height + 1 ) * 4;
- break;
- default:
- *format = mlt_image_yuv422;
- size = *width * ( *height + 1 ) * 2;
- break;
- }
-
// Copy it to current frame
- uint8_t *image_copy = mlt_pool_alloc( size );
+ int size = mlt_image_format_size( *format, *width, *height, NULL );
+ uint8_t *image_copy = mlt_pool_alloc( size );
memcpy( image_copy, buffer, size );
*image = image_copy;
- mlt_properties_set_data( props, "image", *image, size, ( mlt_destructor ) mlt_pool_release, NULL );
+ mlt_frame_set_image( frame, *image, size, mlt_pool_release );
+
+ uint8_t *alpha_buffer = mlt_frame_get_alpha_mask( freeze_frame );
+ int alphasize = *width * *height;
+ uint8_t *alpha_copy = mlt_pool_alloc( alphasize );
+ memcpy( alpha_copy, alpha_buffer, alphasize );
+ mlt_frame_set_alpha( frame, alpha_copy, alphasize, mlt_pool_release );
+
return error;
}
- int error = mlt_frame_get_image( this, image, format, width, height, 1 );
+ int error = mlt_frame_get_image( frame, image, format, width, height, 1 );
return error;
}
/** Filter processing.
*/
-static mlt_frame filter_process( mlt_filter this, mlt_frame frame )
+static mlt_frame filter_process( mlt_filter filter, mlt_frame frame )
{
// Push the filter on to the stack
- mlt_frame_push_service( frame, this );
-
- // Determine the time position of this frame
- mlt_properties_set_position( MLT_FILTER_PROPERTIES( this ), "_seek_frame", mlt_frame_get_position( frame ) - mlt_filter_get_in( this ) );
+ mlt_frame_push_service( frame, filter );
// Push the frame filter
mlt_frame_push_get_image( frame, filter_get_image );
mlt_filter filter_freeze_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
{
- mlt_filter this = mlt_filter_new( );
- if ( this != NULL )
+ mlt_filter filter = mlt_filter_new( );
+ if ( filter != NULL )
{
- this->process = filter_process;
+ filter->process = filter_process;
// Set the frame which will be chosen for freeze
- mlt_properties_set( MLT_FILTER_PROPERTIES( this ), "frame", "0" );
+ mlt_properties_set( MLT_FILTER_PROPERTIES( filter ), "frame", "0" );
// If freeze_after = 1, only frames after the "frame" value will be frozen
- mlt_properties_set( MLT_FILTER_PROPERTIES( this ), "freeze_after", "0" );
+ mlt_properties_set( MLT_FILTER_PROPERTIES( filter ), "freeze_after", "0" );
- // If freeze_before = 1, only frames after the "frame" value will be frozen
- mlt_properties_set( MLT_FILTER_PROPERTIES( this ), "freeze_before", "0" );
+ // If freeze_before = 1, only frames before the "frame" value will be frozen
+ mlt_properties_set( MLT_FILTER_PROPERTIES( filter ), "freeze_before", "0" );
}
- return this;
+ return filter;
}
projects / mlt / blobdiff