X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fmodules%2Fcore%2Ffilter_resize.c;h=8ad0210f827d2775f666e8ccb40ebd8e370ddb54;hb=18deadc4f5b3c17c46055d16b78259c561772f29;hp=d245ed0d409b4f915f315f7446c5a82f1e74c27a;hpb=e48990e98a385144481adfb64405e2a9d07de3a2;p=melted diff --git a/src/modules/core/filter_resize.c b/src/modules/core/filter_resize.c index d245ed0..8ad0210 100644 --- a/src/modules/core/filter_resize.c +++ b/src/modules/core/filter_resize.c @@ -39,10 +39,20 @@ static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format * // Pop the top of stack now mlt_filter filter = mlt_frame_pop_service( this ); + // Retrieve the aspect ratio + double aspect_ratio = mlt_deque_pop_back_double( MLT_FRAME_IMAGE_STACK( this ) ); + // 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 = mlt_properties_get_double( properties, "consumer_aspect_ratio" ); + + // Reset the aspect ratio + mlt_properties_set_double( properties, "aspect_ratio", aspect_ratio ); + // Hmmm... char *rescale = mlt_properties_get( properties, "rescale.interp" ); if ( rescale != NULL && !strcmp( rescale, "none" ) ) @@ -59,22 +69,22 @@ static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format * real_width = mlt_properties_get_int( properties, "width" ); if ( real_height == 0 ) real_height = mlt_properties_get_int( properties, "height" ); - double input_ar = mlt_frame_get_aspect_ratio( this ) * real_width / real_height; + double input_ar = aspect_ratio * real_width / real_height; double output_ar = mlt_properties_get_double( properties, "consumer_aspect_ratio" ) * owidth / oheight; //fprintf( stderr, "normalised %dx%d output %dx%d %f %f\n", normalised_width, normalised_height, owidth, oheight, ( float )output_ar, ( float )mlt_properties_get_double( properties, "consumer_aspect_ratio" ) * owidth / oheight ); // Optimised for the input_ar > output_ar case (e.g. widescreen on standard) - int scaled_width = input_ar / output_ar * normalised_width + 0.5; + int scaled_width = ( input_ar * normalised_width ) / output_ar + 0.5; 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 = output_ar / input_ar * normalised_height + 0.5; + scaled_height = ( output_ar * normalised_height ) / input_ar + 0.5; } - + // Now calculate the actual image size that we want owidth = scaled_width * owidth / normalised_width; oheight = scaled_height * oheight / normalised_height; @@ -83,6 +93,8 @@ static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format * mlt_frame_set_aspect_ratio( this, mlt_properties_get_double( properties, "consumer_aspect_ratio" ) ); } + 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 ); @@ -143,6 +155,9 @@ static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format * static mlt_frame filter_process( mlt_filter this, mlt_frame frame ) { + // Store the aspect ratio reported by the source + mlt_deque_push_back_double( MLT_FRAME_IMAGE_STACK( frame ), mlt_frame_get_aspect_ratio( frame ) ); + // Push this on to the service stack mlt_frame_push_service( frame, this );