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| author | Peter Ross <pross@xvid.org> | 2013-12-23 21:04:45 +1100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-12-23 13:33:45 +0100 |
| commit | d08ea75a825a8091e995a8e0d7c415ccc4339ec9 (patch) | |
| tree | cc8a35c90e512b43c5ca7f4b8bdd64c5dc7332bb /libavformat/wtvdec.c | |
| parent | 5a1bfa7ed72dad746203d9f68fbe5773ddd9546e (diff) | |
| download | ffmpeg-d08ea75a825a8091e995a8e0d7c415ccc4339ec9.tar.gz | |
wtvenc: test avio_size() validity
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/wtvdec.c')
| -rw-r--r-- | libavformat/wtvdec.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavformat/wtvdec.c b/libavformat/wtvdec.c index 48f51ad913..ce767549a4 100644 --- a/libavformat/wtvdec.c +++ b/libavformat/wtvdec.c @@ -153,6 +153,7 @@ static AVIOContext * wtvfile_open_sector(int first_sector, uint64_t length, int AVIOContext *pb; WtvFile *wf; uint8_t *buffer; + int64_t size; if (seek_by_sector(s->pb, first_sector, 0) < 0) return NULL; @@ -205,7 +206,8 @@ static AVIOContext * wtvfile_open_sector(int first_sector, uint64_t length, int return NULL; } - if ((int64_t)wf->sectors[wf->nb_sectors - 1] << WTV_SECTOR_BITS > avio_size(s->pb)) + size = avio_size(s->pb); + if (size >= 0 && (int64_t)wf->sectors[wf->nb_sectors - 1] << WTV_SECTOR_BITS > size) av_log(s, AV_LOG_WARNING, "truncated file\n"); /* check length */ |