From 7f852962dc6aa681a7c5107d17ad4da03c4fb2ce Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Fri, 1 Aug 2014 21:06:13 +0200
Subject: [PATCH] avcodec/mpeg12dec: print the amount of overread
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
libavcodec/mpeg12dec.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c
index fcc1d4c48b4..e78c54942b6 100644
--- a/libavcodec/mpeg12dec.c
+++ b/libavcodec/mpeg12dec.c
@@ -1949,8 +1949,10 @@ static int mpeg_decode_slice(MpegEncContext *s, int mb_y,
}
}
eos: // end of slice
- if (get_bits_left(&s->gb) < 0)
+ if (get_bits_left(&s->gb) < 0) {
+ av_log(s, AV_LOG_ERROR, "overread %d\n", -get_bits_left(&s->gb));
return AVERROR_INVALIDDATA;
+ }
*buf += (get_bits_count(&s->gb) - 1) / 8;
av_dlog(s, "y %d %d %d %d\n", s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y);
return 0;
--
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