[MPlayer-users] Produce 422 format pixels with mencoder for mpeg4-encoding
Carl Eugen Hoyos
cehoyos at ag.or.at
Tue Dec 17 01:42:31 CET 2013
James Board <jpboard2 <at> yahoo.com> writes:
> > > Yes it was serious. The whole point of the thread
> > > was how to generate mpeg4 files with 422 pixels using
> > Please stop (immediately) using "mpeg4" for H.264.
> > This is just misleading. (for you!)
> See, I don't quite understand this. MPEG-4 is the name of
> the codec.
As said, MPEG-4 is the name of a collection of specifications.
Since it contains audio, video and container specifications,
its usage always leads to confusion. Since "ASP" isn't very
catchy, it is ok to use mpeg4 for asp.
> There's MPEG-4 AVC and there's MPEG-4 ASP. Are you saying I
> should use "H.264." for MPEG-4 AVC
Yes. (I believe I wrote this before in this thread. Am I wrong?)
> and then use "MPEG-4" for MPEG-4 ASP?
Yes, see above.
> > > mencoder. If I can coerce ffmpeg to do it, and the quality
> > > and performance are acceptable, then I will use ffmpeg.
> > > But I don't know how. The sample commands that I found
> > > online didn't work.
> > Did you report this?
> Yes. See the post where I stated this:
> "The sample commands that I found online didn't work."
I (and Google) failed to find it.
> > > > > I still have problems with 'blue' pixels when
> > > > > converting from ffhuff-compressed AVI files with
> > > > > yuv422 pixels to non-compressed AVI files with
> > > > > yuv422 pixels. I never saw a response to that issue.
> > >
> > > > You had not reported it in a way that allowed me to
> > > > reproduce this problem.
> > > I didn't see a request for more information,
I of course assumed you meant that you did not see a
request for more information in the last three weeks,
I did not ask for more information when I answered
> > http://thread.gmane.org/gmane.comp.video.mplayer.user/70333/focus=70367
> Yes. That was the previous thread. That's 3 weeks old.
Yes, that was the time I waited for an explanation.
> Over the weekend I posted the full ffmpeg command and
> the full output.
But you did not explain what shows you the "blue tint".
> I know you saw it. Because you answered me. See the post
> titled 'ffvhuff -> rawvideo: all pixels have blue tint.'.
As said, this wasn't the point.
You still owe me the explanation how you still see the
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