[MEncoder-users] divx v's x264

Alex Samad alex at samad.com.au
Thu Jun 5 02:56:46 CEST 2008


On Wed, Jun 04, 2008 at 10:34:10PM +0000, J. M. wrote:
> Alex Samad <alex <at> samad.com.au> writes:
> 
> > > FMP4 isn't Divx, it's MPEG-4 (ASP, Part-2, etc.)
> > 
> > hmm, I thought I was doing divx (i am a newbie at this)
> > from man mencoder 
> > 
> > mpeg4 MPEG-4 (DivX 4/5)
> 
> It is intentionally confusing. :-) What it actually means is that MPEG-4 is the 
> standard used also by the popular DivX codec which many people are familiar 
> with.
> 
> DivX is actually a company and a (trademarked) brand name of various products 
> made by this company. Like the DivX Pro Codec, which is a commercial software 
> product that encodes and decodes video in the MPEG-4 ASP format.

yep, i guess I am so used to call "MPEG-4 ASP" divx 

> 
> What you're using in MEncoder is FFmpeg (libavcodec) MPEG-4, which is a free 
> software product that encodes and decodes video in the MPEG-4 ASP format (that 
> is, it is the same format as with the DivX Pro Codec, Xvid and many others). 
> That is, video encoded with FFmpeg MPEG-4 (and DivX, Xvid etc.) is not "FFmpeg 
> video" (or "DivX video", "Xvid video" etc.), it is MPEG-4 ASP video. Which is 
> compatible with other MPEG-4 ASP decoders (for example, video encoded with 
> FFmpeg MPEG-4 can be decoded with DivX etc.).
> 
> The same also with x264 - there are no "x264 files" as you call them. x264 is a 
> software product that encodes video in the H.264 (MPEG-4 AVC) format. So video 
> encoded with x264 is not x264 video, it is H.264 (MPEG-4 AVC) video. Which is 
> compatible with other H.264-compliant products.

again the same thing I think, my whole confusion in this seems to be
bit rate and have the wrong idea of what it is meant to be

> 
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-- 
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	- George W. Bush
05/05/2006
Washington, DC
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