Opened 13 months ago
Last modified 13 months ago
#10755 new defect
av_seek_frame on ogg with png stream abort()s
| Reported by: | doeme | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | avformat |
| Version: | 6.0 | Keywords: | ogg |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description (last modified by )
I have a (potentially corrupt?) ogg file which contains an audio stream (vorbis) and a single static cover image (png). "avformat_find_stream_info" finds two streams, 0 => vorbis, 1 => png, however, if I try to seek in this file with "av_seek_frame" with stream_index = 1 (the png stream) libav abort()s due to stream_index >= nstreams in oggdec.c (https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/46775e64f8b34f5e4d09df8458654f9f50626c4b:/libavformat/oggdec.c#l937).
How to reproduce:
Build the attached sample program, and run it on the sample.
gcc `pkg-config --cflags --libs libavformat libavcodec libavutil` ogg-png-stream.c -o ogg-png-stream ./ogg-png-stream bug-ogg-pngstream-avseek-abort.ogg
Essentially, this only verifies that the stream with index 1 exists, and then tries to av_seek_frame() with all possible streams as time base, where the png stream 1 causes an abort()
Attachments (2)
Change History (3)
by , 13 months ago
| Attachment: | ogg-png-stream.c added |
|---|
by , 13 months ago
| Attachment: | bug-ogg-pngstream-avseek-abort.ogg added |
|---|
The sample ogg file that causes the abort()
comment:1 by , 13 months ago
| Description: | modified (diff) |
|---|
The test program