[MPlayer-users] V210 to

[András Bohó]

Command line:
mencoder infile -o outfile -ovc raw -nosound

So I intend to simply keep the format. As I see, ffv210 is being used so I'm
using FFmpeg.
I haven't found anything about "dformat". So can I instruct mencoder not to
rescale the video
2 times ending up with yuv444p?

Maybe I should pick another output format in codecs.conf for ffv210 but YV12
doesn't work,
then it says that it is incompatible output format. Is there anything I
could try here? Or other idea?


On Tue, Sep 28, 2010 at 3:16 PM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:

> András Bohó <andras.boho <at> gmail.com> writes:
>
> > I have v210 video and I would need to apply video filters on it.
> > The best solution would be to KEEP the original format uncompressed (in
> > v210) or if it is really necessary then trancoding can also be allowed
> but
> > not how mencoder does it at the moment. It says "[swscaler @
> > 00f12974]BICUBIC scaler, from yuv422p16le to yuv444p using MMX2" but
> yuv444p
> > is totally not compatible with the framework where I need this. I would
> need
> > YV12 or any more suitable format.
>
> 1. Your mencoder command line is missing.
>
> 2. Consider using FFmpeg, MEncoder is not actively maintained anymore. Atm,
> many
> of MPlayer's filters are ported to (FFmpeg's) libavfilter, if the
> particular
> filter you need is not ported yet, consider hiring somebody.
>
> 3. MPlayer (FFmpeg's) software scaler typically only supports YV12, and
> people
> usually complain that they are loosing precision (esp. if the input format
> is 10
> bit). Adding dformat=yv12 or similar will instruct the scaler not to output
> a
> better quality, please read the documentation for more details on scaler
> invocation.
>
> Carl Eugen
>
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