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-rw-r--r--libavcodec/dca.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/libavcodec/dca.c b/libavcodec/dca.c
index 70aaa4ef58..83f529ba1a 100644
--- a/libavcodec/dca.c
+++ b/libavcodec/dca.c
@@ -1352,12 +1352,18 @@ static int dca_decode_frame(AVCodecContext * avctx,
s->xch_present = 1;
break;
}
- case 0x1d95f262:
- av_log(avctx, AV_LOG_DEBUG, "Possible X96 extension found at %d bits\n", get_bits_count(&s->gb));
- av_log(avctx, AV_LOG_DEBUG, "FSIZE96 = %d bytes\n", get_bits(&s->gb, 12)+1);
+ case 0x1d95f262: {
+ int fsize96 = show_bits(&s->gb, 12) + 1;
+ if (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + fsize96)
+ continue;
+
+ av_log(avctx, AV_LOG_DEBUG, "X96 extension found at %d bits\n", get_bits_count(&s->gb));
+ skip_bits(&s->gb, 12);
+ av_log(avctx, AV_LOG_DEBUG, "FSIZE96 = %d bytes\n", fsize96);
av_log(avctx, AV_LOG_DEBUG, "REVNO = %d\n", get_bits(&s->gb, 4));
break;
}
+ }
skip_bits_long(&s->gb, (-get_bits_count(&s->gb)) & 31);
}