[MEncoder-users] x264 questions

Rich Felker dalias at aerifal.cx
Tue Nov 6 04:22:28 CET 2007


On Mon, Nov 05, 2007 at 08:37:32PM -0600, James Hastings-Trew wrote:
> Two separate questions regarding x264 encoding in mencoder:
> 
> 1) does setting frameref to something other than 1 make a difference if 
> there are no bframes? I've read the relevant section in the manuals and 
> am still unclear.
> 
> 2) This message has been a very long standing feature of Mencoder:
> > ** MUXER_LAVF 
> > *****************************************************************
> > REMEMBER: MEncoder's libavformat muxing is presently broken and can 
> > generate
> > INCORRECT files in the presence of B frames. Moreover, due to bugs MPlayer
> > will play these INCORRECT files as if nothing were wrong!
> > *******************************************************************************
> Is this going to be resolved? - i.e. will Mencoder ever be able to mux 
> to an .mp4 container with a video stream that contains b-frames?

Basically no one is working on mencoder and it's so broken that few of
us are interested in it unless it's greatly overhauled. I would
recommend just using it to do the video stream if you need the
powerful filtering it provides, then using the ffmpeg program for the
muxing and anything else.

Rich



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