Make src const.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@11813 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libpostproc/postprocess_internal.h

@@ -166,7 +166,7 @@ typedef struct PPContext{
 } PPContext;
 
 
-static inline void linecpy(void *dest, void *src, int lines, int stride)
+static inline void linecpy(void *dest, const void *src, int lines, int stride)
 {
         if (stride > 0) {
                 memcpy(dest, src, lines*stride);