[FFmpeg-user] VP8 where is the variable Bitrate mode?

[David Wagner]

> Hi,
>
> I'm searching for variable bitrate mode when using libvpx with ffmpeg. 
> Only found qscale <1 - 31> but it makes no difference which value I 
> use. It seems always to use 200kb/s. Is there any vbr mode?
>
> Regards,
> David

I don't get it working properly.... I use this command :
ffmpeg.exe -i "C:\original.avi -c:v libvpx -quality good -crf 50  -qmin 
2 -qmax 63  -v:b 200 "C:\coded.webm"
It sets the bitrate all the time to 200...
Also if I change in my commnad line the crf to something lesser than 4 I 
get error that crf has to be smaller than qmin.

This some of the output I get in the beginning of the encoding process:

[libvpx @ 024afc00] rate control settings
   rc_dropframe_thresh:          0
   rc_resize_allowed:            0
   rc_resize_up_thresh:          60
   rc_resize_down_thresh:        30
   rc_end_usage:                 2
   rc_twopass_stats_in:          00000000(0)
   rc_target_bitrate:            200
[libvpx @ 024afc00] quantizer settings
   rc_min_quantizer:             4
   rc_max_quantizer:             63

Can some one please provide me with some working VBR command line in 
which I can set the quality?

Thank you,
David