The buffer passed into the decoder should be const.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@11704 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/avcodec.h

@@ -2200,7 +2200,7 @@ typedef struct AVCodec {
     int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
     int (*close)(AVCodecContext *);
     int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
-                  uint8_t *buf, int buf_size);
+                  const uint8_t *buf, int buf_size);
     int capabilities;
     struct AVCodec *next;
     void (*flush)(AVCodecContext *);