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mpeg-ts: fix handling of size=0 SL headers.

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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-03-03 07:43:32 +01:00
parent c6810d98a5
commit e732d0f608
1 changed files with 6 additions and 0 deletions
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6
libavformat/mpegts.c
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@ -710,6 +710,12 @@ static int read_sl_header(PESContext *pes, SLConfigDescr *sl, const uint8_t *buf
int padding_flag = 0, padding_bits = 0, inst_bitrate_flag = 0; int padding_flag = 0, padding_bits = 0, inst_bitrate_flag = 0;
int dts_flag = -1, cts_flag = -1; int dts_flag = -1, cts_flag = -1;
int64_t dts = AV_NOPTS_VALUE, cts = AV_NOPTS_VALUE; int64_t dts = AV_NOPTS_VALUE, cts = AV_NOPTS_VALUE;
if (buf_size<=0) {
av_log(0,AV_LOG_WARNING, "empty SL header\n");
return 0;
}
init_get_bits(&gb, buf, buf_size*8); init_get_bits(&gb, buf, buf_size*8);
if (sl->use_au_start) if (sl->use_au_start)