[MPlayer-advusers] ID_DEMUXER=nuv + ID_VIDEO_FORMAT=RJPG --> no picture ?!

[tormen at gmx.net]

Hi.

Thnx a lot for the fast answer!!

As I am "between the chairs" (mplayer and mythtv) here I would like to 
be able as good as possible to understand the problem and to be able
to tell them what is the problem.

As I don't know what a "quantizer" is, I wanted to ask:

So there is missing some information normaly stored in (the header? of) 
a .nuv file here?

Are the missing quantizers part of the .nuv container format or part of 
the RJPG video compression?

And is this information that is missing just one number (a quantizer) or
many numbers?

And these quantizer were also not part of the nuvinfo output I appended 
to my first posting?
(like rtjpeg_quality:  170 or seektable_offset, height, width or 
aspect)

If you or someone could give me (short) answers on this questions
I would be hoping to have better chances to get this changed/fixed from 
the mythtv side.
I know that I can't expect anything here.


Greetings,

tormen.

---

On Sun, May 27, 2007 at 11:27:20PM +0200, Reimar Döffinger wrote:
> Hello,
> On Sun, May 27, 2007 at 10:21:21PM +0200, tormen at gmx.net wrote:
> > I have a .nuv file recorded with mythtv 0.20.1_p13344 which contains pcm 
> > uncompressed audio and RJPEG compressed video.
> > mythfrontend can play the video.

> > mplayer does not. It seems to detect the video-codec, but no picture 
> > appears.

> Well, that file does not contain the quantizers used to encode it. I
> guess mythfrontend uses some default values - MPlayer unfortunately uses
> 0 as default which results only in a black/green screen.

> Greetings,
> Reimar Döffinger
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