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Code Issues Releases Activity

Support invalid mpeg created by vdr

Browse Source 
(http://www.lucke.in-berlin.de/test_streams/last_played_fine_with_r7852_001.vdr).
fixes issue434

Originally committed as revision 13014 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-04-29 00:12:49 +00:00
parent 60711e9599
commit b22d0c04d7
1 changed files with 4 additions and 3 deletions
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7
libavformat/mpeg.c
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@ -341,12 +341,13 @@ static int mpegps_read_pes_header(AVFormatContext *s,
if (flags & 0x01) { /* PES extension */ if (flags & 0x01) { /* PES extension */
pes_ext = get_byte(s->pb); pes_ext = get_byte(s->pb);
header_len--; header_len--;
if (pes_ext & 0x40) { /* pack header - should be zero in PS */
goto error_redo;
}
/* Skip PES private data, program packet sequence counter and P-STD buffer */ /* Skip PES private data, program packet sequence counter and P-STD buffer */
skip = (pes_ext >> 4) & 0xb; skip = (pes_ext >> 4) & 0xb;
skip += skip & 0x9; skip += skip & 0x9;
if (pes_ext & 0x40 || skip > header_len){
av_log(s, AV_LOG_WARNING, "pes_ext %X is invalid\n", pes_ext);
pes_ext=skip=0;
}
url_fskip(s->pb, skip); url_fskip(s->pb, skip);
header_len -= skip; header_len -= skip;