X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fmodules%2Fvmfx%2Ffilter_chroma.c;h=7616856c12ad2ac4f154ad0c97e1544d7e7a095f;hb=7ecd47eeebf87332a4892d167baff959f0f6a11a;hp=6d9384c5d05b179b6144c5d6bc3f8e12b531a6e6;hpb=66ee48cf0b9448e670cfa19dfbbdc06193288181;p=melted

diff --git a/src/modules/vmfx/filter_chroma.c b/src/modules/vmfx/filter_chroma.c
index 6d9384c..7616856 100644
--- a/src/modules/vmfx/filter_chroma.c
+++ b/src/modules/vmfx/filter_chroma.c
@@ -18,8 +18,9 @@
  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
-#include "filter_chroma.h"
+#include <framework/mlt_filter.h>
 #include <stdlib.h>
+#include <math.h>
 #include <framework/mlt_factory.h>
 #include <framework/mlt_frame.h>
 #include <framework/mlt_producer.h>
@@ -30,9 +31,12 @@ static inline int in_range( uint8_t v, uint8_t c, int var )
 	return ( ( int )v >= c - var ) && ( ( int )v <= c + var );
 }
 
-static inline uint8_t alpha_value( uint8_t a, uint8_t *p, uint8_t u, uint8_t v, int var )
+static inline uint8_t alpha_value( uint8_t a, uint8_t *p, uint8_t u, uint8_t v, int var, int odd )
 {
-	return ( in_range( *( p + 1 ), u, var ) && in_range( *( p + 3 ), v, var ) ) ? 0 : a;
+	if ( odd == 0 )
+		return ( in_range( *( p + 1 ), u, var ) && in_range( *( p + 3 ), v, var ) ) ? 0 : a;
+	else
+		return ( in_range( ( *( p + 1 ) + *( p + 5 ) ) / 2, u, var ) && in_range( ( *( p + 3 ) + *( p + 7 ) ) / 2, v, var ) ) ? 0 : a;
 }
 
 /** Get the images and map the chroma to the alpha of the frame.
@@ -58,12 +62,11 @@ static int filter_get_image( mlt_frame frame, uint8_t **image, mlt_image_format
 		int size = *width * *height / 2;
 		while ( size -- )
 		{
-			*alpha = alpha_value( *alpha, p, u, v, variance );
-			*alpha ++;
-			p += 2;
-			*alpha = alpha_value( *alpha, p, v, u, variance );
+			*alpha = alpha_value( *alpha, p, u, v, variance, 0 );
 			alpha ++;
-			p += 2;
+			*alpha = alpha_value( *alpha, p, u, v, variance, 1 );
+			alpha ++;
+			p += 4;
 		}
 	}
 
@@ -83,13 +86,13 @@ static mlt_frame filter_process( mlt_filter this, mlt_frame frame )
 /** Constructor for the filter.
 */
 
-mlt_filter filter_chroma_init( char *arg )
+mlt_filter filter_chroma_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
 {
 	mlt_filter this = mlt_filter_new( );
 	if ( this != NULL )
 	{
-		mlt_properties_set( MLT_FILTER_PROPERTIES( this ), "key", arg == NULL ? "0x00ff00" : arg );
-		mlt_properties_set_double( MLT_FILTER_PROPERTIES( this ), "variance", 0.3 );
+		mlt_properties_set( MLT_FILTER_PROPERTIES( this ), "key", arg == NULL ? "0x0000ff" : arg );
+		mlt_properties_set_double( MLT_FILTER_PROPERTIES( this ), "variance", 0.15 );
 		this->process = filter_process;
 	}
 	return this;