Re: [transcode-users] rc buffer underflow with ffmpeg

[achurch@xxxxxxxxxxx (Andrew Church)]

>> >      Obvious solution: lower vrc_maxrate.  Even the default only puts it
>> > at 9000 kbps, and raising it farther really won't gain you anything
>> > noticeable.  If you continue having problems, lower it even further.  See
>> > also http://www.transcoding.org/cgi-bin/transcode?FFmpeg_Vs._Mpeg2enc
>
>I've never seen a reason to use a value different than the default, so 
>just leave it alone.

     The reason is that 2-pass FFmpeg goes over the max bitrate, so you may
need to reduce it to stay within spec (as we've gone over several times
before...).

  --Andrew Church
    achurch@xxxxxxxxxxx
    http://achurch.org/