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Code Issues Releases Activity

avcodec/dvbsubdec: Fix 8bit non_mod case

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Untested, i failed to find a sample which triggers this case

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-07-31 13:25:43 +02:00
parent 2813dabdd4
commit e0c36f5825
1 changed files with 7 additions and 5 deletions
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4
libavcodec/dvbsubdec.c
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@ -741,15 +741,17 @@ static int dvbsub_read_8bit_string(uint8_t *destbuf, int dbuf_len,
if (non_mod == 1 && bits == 1) if (non_mod == 1 && bits == 1)
pixels_read += run_length; pixels_read += run_length;
else {
if (map_table) if (map_table)
bits = map_table[bits]; bits = map_table[bits];
else while (run_length-- > 0 && pixels_read < dbuf_len) { while (run_length-- > 0 && pixels_read < dbuf_len) {
*destbuf++ = bits; *destbuf++ = bits;
pixels_read++; pixels_read++;
} }
} }
} }
} }
}
if (*(*srcbuf)++) if (*(*srcbuf)++)
av_log(0, AV_LOG_ERROR, "DVBSub error: line overflow\n"); av_log(0, AV_LOG_ERROR, "DVBSub error: line overflow\n");