Opened 3 months ago
#10879 new defect
Backporting "avformat/mov: Ignore duplicate ftyp" patch to 5.1.4
| Reported by: | alard | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | avformat |
| Version: | Keywords: | ||
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
ffmpeg 6.1.0 introduced the following change in avformat/mov:
https://patchwork.ffmpeg.org/project/ffmpeg/patch/20231108021244.8669-1-michael@niedermayer.cc/
As indicated in the discussion there, this strict checking caused issues with concatenated fragmented MP4 files. For this reason, the following patch was introduced in 6.1.1 to ignore duplicate ftyp instances:
https://patchwork.ffmpeg.org/project/ffmpeg/patch/20231201232603.31423-1-michael@niedermayer.cc/
All good so far.
The problem: the first patch was backported to 5.1.4, but the second was not. This means that the bug currently still occurs on systems running ffmpeg 5.1.x (which is, for example, the current version on Debian 12).
Would it be possible to apply the second patch also to the 5.1 branch?
Example file that currently fails on Debian 12, ffmpeg 5.1.4:
https://storage.googleapis.com/chromiumos-test-assets-public/Shaka-Dash/switch_1080p_720p.mp4
