Bug#789254: This sample seems not to be processable by FFmpeg
pbelkner at snafu.de
Sun Jun 21 20:28:55 UTC 2015
What BS1770GAIN does is best approximated by the following FFmpeg
command (copying the video stream, transcoding the audio stream into
FLAC and muxing both into a MKV container):
$ ffmpeg -i sample/20030213-cvs.mpeg -vcodec copy -acodec flac -y ffmpeg/20030213-cvs.mkv
FFmpeg aborts with the following error message:
[matroska @ 02a9ae00] Can't write packet with unknown timestamp
av_interleaved_write_frame(): Invalid argument
Google for that error. You will see that it is known for a long time.
It's not the aim of BS1770GAIN to work around FFmpeg's bugs (it is
impossible anyway). We hope that some day the bugs in FFmpeg will be
fixed (a lot of them are meanwhile gone, some fixes I've provided myself.)
The best way for organizing your workflow is as a first step before
running BS1770gain is to remux all your files into a proper MKV using
In my opinion, choosing MKV as the intermediate container while working
with multimedia files is the best choice anyway.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the pkg-multimedia-maintainers