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 )
+ 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(frame);
*image = image_copy;
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;
}
// If freeze_after = 1, only frames after the "frame" value will be frozen
mlt_properties_set( MLT_FILTER_PROPERTIES( filter ), "freeze_after", "0" );
- // If freeze_before = 1, only frames after the "frame" value will be frozen
+ // If freeze_before = 1, only frames before the "frame" value will be frozen
mlt_properties_set( MLT_FILTER_PROPERTIES( filter ), "freeze_before", "0" );
}
return filter;