From: lilo_booter <lilo_booter@d19143bc-622f-0410-bfdd-b5b2a6649095>
Date: Thu, 4 May 2006 20:06:48 +0000 (+0000)
Subject: + Big endian patch courtesy of Goncalo Carvalho (glslang at gmail dot com) - specific... 
X-Git-Url: http://research.m1stereo.tv/gitweb?a=commitdiff_plain;h=85847996a23da6ee205cf35a4d8230c1cc66c6a5;p=melted

+ Big endian patch courtesy of Goncalo Carvalho (glslang at gmail dot com) - specifically, corrects colour space conversions on the Intel Mac


git-svn-id: https://mlt.svn.sourceforge.net/svnroot/mlt/trunk/mlt@909 d19143bc-622f-0410-bfdd-b5b2a6649095
---

diff --git a/src/modules/avformat/filter_avcolour_space.c b/src/modules/avformat/filter_avcolour_space.c
index 53b6780..9ea2b8f 100644
--- a/src/modules/avformat/filter_avcolour_space.c
+++ b/src/modules/avformat/filter_avcolour_space.c
@@ -28,6 +28,14 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+static inline int is_big_endian( )
+{
+	union { int i; char c[ 4 ]; } big_endian_test;
+	big_endian_test.i = 1;
+
+	return big_endian_test.c[ 0 ] != 1;
+}
+
 static inline int convert_mlt_to_av_cs( mlt_image_format format )
 {
 	int value = 0;
@@ -96,10 +104,8 @@ static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format *
 			register uint8_t *bits = *image;
 			register int n = ( len + 7 ) / 8;
 
-			// TODO: Proper check for big endian systems
-			#ifndef __DARWIN__
-			bits += 3;
-			#endif
+			if( !is_big_endian( ) )
+				bits += 3;
 
 			// Extract alpha mask from the image using Duff's Device
 			switch( len % 8 )
@@ -134,11 +140,9 @@ static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format *
 				register uint8_t *bits = *image;
 				register int len = *width * *height;
 				register int n = ( len + 7 ) / 8;
-
-				// TODO: Proper check for big endian systems
-				#ifndef __DARWIN__
-				bits += 3;
-				#endif
+				
+				if( !is_big_endian( ) )
+					bits += 3;
 
 				// Merge the alpha mask into the RGB image using Duff's Device
 				switch( len % 8 )