ffmpeg has internal codecs for decoding these(and almost any other) formats, external libs requied only for high quality encoding. If i re-emerge ffmpeg with --nodeps USE='-opus -vorbis -vpx' and re-launch chromium these formats are still playnig fine. Reproducible: Always
Yes, flash is disabled, i'm sure its with html5.
pretty sure they are required for webrtc.
(In reply to Alex Xu (Hello71) from comment #2) > pretty sure they are required for webrtc. you'd probably need ffmpeg[encode] dep too then, otherwise you'd get only the decoders which won't be used by default with ffmpeg[-encode]
Created attachment 422018 [details] Bundled configure log I have attached a section from a build log of www-client/chromium-49.0.2587.3[system-ffmpeg]. It shows the configure command that is used for the bundled ffmpeg library. Maybe this will help with figure out what ffmpeg USE flags are actually needed.
(In reply to xpue from comment #0) > If i re-emerge ffmpeg with --nodeps USE='-opus -vorbis -vpx' and re-launch > chromium these formats are still playnig fine. What are your testing steps (starting from a fresh profile)? I'd like to make sure they're documented on this bug, that we can repeat them, and that they cover all needed scenarios. (In reply to Alex Xu (Hello71) from comment #2) > pretty sure they are required for webrtc. Could you provide evidence for above statement? FWIW I'm not aware of any webrtc-specific requirements.
>What are your testing steps I installed chromium-48.0.2564.23 normally with USE=system-ffmpeg re-built ffmpeg with --nodeps USE='-opus -vorbis -vpx' disabled flash in chromium settings opened these: http://opus-codec.org/examples http://vorbis.com/music http://webmfiles.org/demo-files http://youtube.com (it's vp9 by default) have not tested re-building chromium after disabling codecs in ffmpeg.
Forgot, of course i re-launched chromium after re-building ffmpeg.
Fixed. Thanks for the report and testing!
