[FFmpeg-soc] [soc]: r2285 - eac3/ac3dec.c

[jbr]

Author: jbr
Date: Sat May 31 18:15:30 2008
New Revision: 2285

Log:
add a check for invalid channel mode when coupling is used.

Modified:
   eac3/ac3dec.c

Modified: eac3/ac3dec.c
==============================================================================
--- eac3/ac3dec.c	(original)
+++ eac3/ac3dec.c	Sat May 31 18:15:30 2008
@@ -793,6 +793,11 @@ static int decode_audio_block(AC3DecodeC
             /* coupling in use */
             int cpl_begin_freq, cpl_end_freq;
 
+            if (channel_mode < AC3_CHMODE_STEREO) {
+                av_log(s->avctx, AV_LOG_ERROR, "coupling not allowed in mono or dual-mono\n");
+                return -1;
+            }
+
             /* check for enhanced coupling */
             if (s->eac3 && get_bits1(gbc)) {
                 /* TODO: parse enhanced coupling strategy info */