[FFmpeg-devel] [PATCH] G.729 initialization routine (skeleton)

[Pavel Pavlov]

> -----Original Message-----
> > > On Wed, Jun 10, 2009 at 12:27:35AM +0700, Vladimir 
> Voroshilov wrote:
> > Well...
> > First look give me (at least for 8k and 6k4. i'll finally 
> drop out 4k4 
> > in next patch since i've no method to test it):
> > avctx->sample_rate=8000
> > avctx->bit_rate = 8000 and 6400 respectively frame_size = 
> > avctx->avctx->sample_rate /100 (1 packet = 10ms)
...
> >> G.729 standard also describes 11.5k and 6.4k modes (and also 
> >> several non-standard modes exists, like above 4.4k).
> >> So what will be happend if such mode will be passed to decoder ?
> >
> > as the values you quote are bitrates and the check is testing the 
> > samplerate ...

I'm a bit surprised about 4k4. Also, it's not 11.5, but 11.8. Where did
you find that there is 4k4 in g729 and how could there be non standard
bitrates?
As far as I know, 8k is the main bitrate, and there were g729 annex e
and f that are 6.4 and 11.8kbit. Annex b has vad, so maybe when vad is
used and DTX is disabled it could be anything else other than 6.4/8/11.8