[MPlayer-users] PSNR tests: mbd=2, mv0, trell, and cbp (and...

[D Richard Felker III]

On Wed, Oct 15, 2003 at 03:47:41AM -0700, rcooley wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> On Tue, 14 Oct 2003 19:53:45 -0400
> D Richard Felker III <dalias at aerifal.cx> wrote:
> 
> > 
> > I'm VERY skeptical of this advice... All I've ever seen MPEG1 do (at
> > bitrates where the MPEG4 looks subperfect) is spew out horrible
> > blocking artifacts...
> 
> That certainly hasn't been my experience at all.  With mpeg1video at
> high resolutions (and reasonable bitrates), it produces a rather good
> picture, but blurs the fine details. For TV, that's more or less what
> you want, since TV signals usually don't have fine details, unlike
> digital sources.
> 
> As for artifacts, I happen to like MPEG1 because it has much more
> plesant artifacts.  I never see blocking, stair-stepping
> lines, etc, when I've used it.

Try mpeg_quant lavc option with mpeg4. You should get the best of both
worlds.

Rich