Merge commit '8191f960'

* commit '8191f960':
  examples/decode_video: constify the AVCodec instance
Merged-by: NClément Bœsch <u@pkh.me>

doc/examples/decode_video.c

@@ -79,7 +79,7 @@ static int decode_write_frame(const char *outfilename, AVCodecContext *avctx,
 int main(int argc, char **argv)
 {
     const char *filename, *outfilename;
-    AVCodec *codec;
+    const AVCodec *codec;
     AVCodecContext *c= NULL;
     int frame_count;
     FILE *f;