[FFmpeg-devel] Live streaming of VP8

[Marcos Mello]

James Zern <jzern <at> google.com> writes:

> 
> VBR is the default if you avoid setting min=max=bitrate.
> Quality and deadline are codec options, '-deadline 1' has the same
> meaning as '-quality realtime'.
> From code the easiest way to set these is probably av_set_opt [1].
>     av_opt_set_double(_codecContext->priv_data, "max-intra-rate", 90, 0);
>     av_opt_set(_codecContext->priv_data, "quality", "realtime", 0);
> 
<snip>
> 
> It was attached to the mail thread, but has been pulled into the main
> repository, so a git pull will include it.
> 
> > Is there support in FFMPEG to force a key frame as there is in libvpx?
> >
> 
> There's support generally yes via -force_key_frames. The attached adds
> support to libvpxenc. If you get into forcing other frames like
> golden, etc. you might be better served by using libvpx directly.
> 
> [1]
http://ffmpeg.org/doxygen/trunk/group__opt__set__funcs.html#g5fd4b92bdf4f392a2847f711676a7537
> 

Thanks for both patches James. Can you please document the new options in
doc/encoders.texi? It will help users (like me :-) a lot.

Regards,

Marcos