Before reporting a bug, please consider the following:
Once you have gathered this information, you can submit a report to the FFmpeg bug tracker.
Note, you must register there first before you can submit a report.
You should provide all information so that anyone can reproduce the bug.
Please do not report your problem on the developer mailing list:
Only send bug reports there if you also intend to provide a fix.
Submitting Sample Media
The developers may ask you to provide a sample media file illustrating your problem. In this case, please follow these steps:
- If the sample file is too large ( > 10 megabytes), cut it down to
size with the Unix 'dd' command:
dd if=sample-file of=small-sample-file bs=1024 count=10000and then upload small-sample-file rather than sample-file
- Please choose descriptive names like
block_artifacts_after_seeking.mkv. We already have plenty of
- Upload the sample to the FTP server. Note that our FTP server
is write-only. Even though you cannot see the files that you upload,
it will be there and the FFmpeg developers will have access.
- Log into upload.ffmpeg.org with an anonymous FTP login.
- cd -> incoming
- Upload a brief text file describing the sample and what is wrong. This is important! If you leave out the text file, your sample will most likely be deleted without further examination.
- Upload the sample.
- Email the ffmpeg mailing list and indicate the filename of the sample.
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