diff options
Diffstat (limited to 'libavformat')
| -rw-r--r-- | libavformat/rmdec.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/libavformat/rmdec.c b/libavformat/rmdec.c index befec2aff7..a017418d66 100644 --- a/libavformat/rmdec.c +++ b/libavformat/rmdec.c @@ -440,7 +440,19 @@ static int sync(AVFormatContext *s, int64_t *timestamp, int *flags, int *stream_ state= (state<<8) + get_byte(pb); if(state == MKBETAG('I', 'N', 'D', 'X')){ - len = get_be16(pb) - 6; + int n_pkts, expected_len; + len = get_be32(pb); + url_fskip(pb, 2); + n_pkts = get_be32(pb); + expected_len = 20 + n_pkts * 14; + if (len == 20) + /* some files don't add index entries to chunk size... */ + len = expected_len; + else if (len != expected_len) + av_log(s, AV_LOG_WARNING, + "Index size %d (%d pkts) is wrong, should be %d.\n", + len, n_pkts, expected_len); + len -= 14; // we already read part of the index header if(len<0) continue; goto skip; |