[FFmpeg-soc] [soc]: r3853 - dirac/libavcodec/diracdec.c

[conrad]

Author: conrad
Date: Wed Dec  3 22:28:58 2008
New Revision: 3853

Log:
Fail if picture prediction mode is not 0 as this will likely cause bitstream desync


Modified:
   dirac/libavcodec/diracdec.c

Modified: dirac/libavcodec/diracdec.c
==============================================================================
--- dirac/libavcodec/diracdec.c	(original)
+++ dirac/libavcodec/diracdec.c	Wed Dec  3 22:28:58 2008
@@ -327,9 +327,11 @@ static int dirac_unpack_prediction_param
         }
     }
 
-    /* Picture prediction mode.  Not used yet in the specification, so
-       just ignore it, it should and will be zero. */
-    svq3_get_ue_golomb(gb);
+    /* Picture prediction mode. May be used in the future. */
+    if (svq3_get_ue_golomb(gb) != 0) {
+        av_log(s->avctx, AV_LOG_ERROR, "Unknown picture prediction mode\n");
+        return -1;
+    }
 
     /* Default weights */
     s->decoding.picture_weight_precision = 1;