@@ -27,7 +27,7 @@

 static int ac3_eac3_probe(AVProbeData *p, enum AVCodecID expected_codec_id)

 {

     int max_frames, first_frames = 0, frames;

-    uint8_t *buf, *buf2, *end;

+    const uint8_t *buf, *buf2, *end;

     AC3HeaderInfo hdr;

     GetBitContext gbc;

     enum AVCodecID codec_id = AV_CODEC_ID_AC3;