+ Correction for rounding errors

git-svn-id: https://mlt.svn.sourceforge.net/svnroot/mlt/trunk/mlt@779 d19143bc-622f-0410-bfdd-b5b2a6649095

diff --git a/src/modules/core/filter_resize.c b/src/modules/core/filter_resize.c
index bd8841b..8ad0210 100644 (file)
--- a/src/modules/core/filter_resize.c
+++ b/src/modules/core/filter_resize.c
@@ -75,14 +75,14 @@ static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format *
                //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