[FFmpeg-user] Extracting opus frames from webm/mkv

Michael Castellon castellonmichael at gmail.com
Mon Aug 19 19:31:45 EEST 2019

ffmpeg -i video.mp4 -vn -acodec libopus audio.opus

On Sun, Aug 18, 2019 at 3:12 PM Dziku <synmotopompy at gmail.com> wrote:

> Hello,
> I have webm files with only opus encoded audio track that I'm streaming
> through a voice chat that requires opus encoded packets as input. So far
> I've been using ffmpeg to convert the webms with opus audio to ogg
> containers and then use my own code to extract opus packets from ogg, which
> is obviously inefficient, because webms already contain the very same opus
> packets.
> I would like to extract opus encoded packets so that I can directly serve
> them to the voice chat. Is it possible to achieve with ffmpeg cli or any of
> its C libraries?
> Best regards,
> Adam Nowak
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