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| author | Michael Niedermayer <michaelni@gmx.at> | 2015-04-20 23:59:53 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2015-04-25 15:06:53 +0200 |
| commit | 8c832e3cc05c4590054cf49630b2f026eec4c734 (patch) | |
| tree | 8daabd4a351317007e0bdb385ffdbadb6cdfe852 | |
| parent | 0014b243733d4860cc01c2f7e7943f4c171fae9c (diff) | |
| download | ffmpeg-8c832e3cc05c4590054cf49630b2f026eec4c734.tar.gz | |
avformat/img2dec: do not rewind custom io buffers
Fixes double free with some applications
Fixes vlc ticket14121
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit e6e8cc8ce9c2a398fbb51254a5067f4bd3c4fa8a)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavformat/img2dec.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libavformat/img2dec.c b/libavformat/img2dec.c index 6f10369b8a..1509f19426 100644 --- a/libavformat/img2dec.c +++ b/libavformat/img2dec.c @@ -339,7 +339,10 @@ int ff_img_read_header(AVFormatContext *s1) break; } } - ffio_rewind_with_probe_data(s1->pb, &probe_buffer, probe_buffer_size); + if (s1->flags & AVFMT_FLAG_CUSTOM_IO) { + avio_seek(s1->pb, 0, SEEK_SET); + } else + ffio_rewind_with_probe_data(s1->pb, &probe_buffer, probe_buffer_size); } if (st->codec->codec_id == AV_CODEC_ID_NONE) st->codec->codec_id = ff_guess_image2_codec(s->path); |