[FFmpeg-user] FFMPEG constant bitrate with libvpx on FreeBSD 9

Carl Eugen Hoyos cehoyos at ag.or.at
Tue Feb 4 11:00:33 CET 2014

Manas Bhatnagar <b.manas.88 <at> gmail.com> writes:

> I am running ffmpeg version 2.1.1.

This is old, if you are a user, please test current 
git head before reporting problems here.

> I am trying to convert a h264,ac3 .mkv to a vp8,ogg 
> .webm file with constant bitrate. the command I am using
> is "ffmpeg -i video.mkv -c:v libvpx -b:v 450k -minrate 450k 
> -maxrate 450k -c:a libvorbis -b:a 48k -ac 2 video.webm". 

Complete, uncut console output missing.

> the output video file that is produced always has a very 
> high bitrate (1000+kbps).

Did you test if this is reproducible with the vpx executable 
(without using FFmpeg)?

Carl Eugen

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