X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fmodules%2Fcore%2Ffilter_rescale.c;h=25ca5fcff7d38ce347e7101ef7ba51f9c13bd184;hb=f4963a6aa07644399b273b5d2b1f9299c9047414;hp=1992cd44b41f42e64922ca5c9a4495e919040fac;hpb=b5929c56cc81c995d43121ad695c91b249684167;p=melted

diff --git a/src/modules/core/filter_rescale.c b/src/modules/core/filter_rescale.c
index 1992cd4..25ca5fc 100644
--- a/src/modules/core/filter_rescale.c
+++ b/src/modules/core/filter_rescale.c
@@ -18,8 +18,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-#include "filter_rescale.h"
-
+#include <framework/mlt_filter.h>
 #include <framework/mlt_frame.h>
 
 #include <stdio.h>
@@ -29,6 +28,8 @@
 
 typedef int ( *image_scaler )( mlt_frame this, uint8_t **image, mlt_image_format iformat, mlt_image_format oformat, int iwidth, int iheight, int owidth, int oheight );
 
+static void scale_alpha( mlt_frame this, int iwidth, int iheight, int owidth, int oheight );
+
 static int filter_scale( mlt_frame this, uint8_t **image, mlt_image_format iformat, mlt_image_format oformat, int iwidth, int iheight, int owidth, int oheight )
 {
 	// Get the properties
@@ -45,6 +46,12 @@ static int filter_scale( mlt_frame this, uint8_t **image, mlt_image_format iform
 		
 		// Return the output
 		*image = mlt_properties_get_data( properties, "image", NULL );
+
+		// Scale the alpha channel only if exists and not correct size
+		int alpha_size = 0;
+		mlt_properties_get_data( properties, "alpha", &alpha_size );
+		if ( alpha_size > 0 && alpha_size != ( owidth * oheight ) )
+			scale_alpha( this, iwidth, iheight, owidth, oheight );
 	}
 	else if ( iformat == mlt_image_rgb24 || iformat == mlt_image_rgb24a )
 	{
@@ -65,6 +72,8 @@ static int filter_scale( mlt_frame this, uint8_t **image, mlt_image_format iform
 				mlt_convert_rgb24a_to_yuv422( *image, iwidth, iheight, iwidth * 4, output, alpha );
 
 				mlt_properties_set_data( properties, "alpha", alpha, iwidth * ( iheight + 1 ), ( mlt_destructor )mlt_pool_release, NULL );
+
+				scale_alpha( this, iwidth, iheight, owidth, oheight );
 			}
 			else
 			{
@@ -90,6 +99,8 @@ static int filter_scale( mlt_frame this, uint8_t **image, mlt_image_format iform
 				mlt_convert_rgb24a_to_yuv422( *image, owidth, oheight, owidth * 4, output, alpha );
 
 				mlt_properties_set_data( properties, "alpha", alpha, owidth * ( oheight + 1 ), ( mlt_destructor )mlt_pool_release, NULL );
+
+				scale_alpha( this, iwidth, iheight, owidth, oheight );
 			}
 			else
 			{
@@ -106,6 +117,11 @@ static int filter_scale( mlt_frame this, uint8_t **image, mlt_image_format iform
 		*image = output;
 	}
 
+	return 0;
+}
+
+static void scale_alpha( mlt_frame this, int iwidth, int iheight, int owidth, int oheight )
+{
 	// Scale the alpha
 	uint8_t *output = NULL;
 	uint8_t *input = mlt_frame_get_alpha_mask( this );
@@ -128,8 +144,6 @@ static int filter_scale( mlt_frame this, uint8_t **image, mlt_image_format iform
 		// Set it back on the frame
 		mlt_properties_set_data( MLT_FRAME_PROPERTIES( this ), "alpha", output, owidth * oheight, mlt_pool_release, NULL );
 	}
-
-	return 0;
 }
 
 /** Do it :-).
@@ -192,7 +206,12 @@ static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format *
 			mlt_properties_set_int( properties, "rescale_width", iwidth );
 			mlt_properties_set_int( properties, "rescale_height", iheight );
 		}
-	
+
+		// Deinterlace if height is changing to prevent fields mixing on interpolation
+		// One exception: non-interpolated, integral scaling
+		if ( iheight != oheight && ( strcmp( interps, "nearest" ) || ( iheight % oheight != 0 ) ) )
+			mlt_properties_set_int( properties, "consumer_deinterlace", 1 );
+
 		// Get the image as requested
 		mlt_frame_get_image( this, image, format, &iwidth, &iheight, writable );
 
@@ -280,7 +299,7 @@ static mlt_frame filter_process( mlt_filter this, mlt_frame frame )
 /** Constructor for the filter.
 */
 
-mlt_filter filter_rescale_init( char *arg )
+mlt_filter filter_rescale_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
 {
 	// Create a new scaler
 	mlt_filter this = mlt_filter_new( );