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Do not fail DVB sub decoding because of a few padding bytes 

Instead of returning an error when bytes are left over, just return
the number of actually used bytes as other decoders do.
Instead add a special case so an error will be returned when none
of the data looks valid to avoid making debugging a pain.

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
This commit is contained in:
Reimar Döffinger 2011-02-09 19:32:07 +01:00 committed by Janne Grunau
parent dda3f0ef48
commit 4a72765a1c
1 changed files with 2 additions and 7 deletions
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9
libavcodec/dvbsubdec.c
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@ -1423,7 +1423,7 @@ static int dvbsub_decode(AVCodecContext *avctx,
#endif
if (buf_size <= 2)
if (buf_size <= 2 || *buf != 0x0f)
return -1;
p = buf;
@ -1467,12 +1467,7 @@ static int dvbsub_decode(AVCodecContext *avctx,
p += segment_length;
}
if (p != p_end) {
av_dlog(avctx, "Junk at end of packet\n");
return -1;
}
return buf_size;
return p - buf;
}