Re: [Mjpeg-users] mencvcd script

[Bernhard P. <sha...@ut...>]

Hallo


> I'm not sure if this is the proper channel to ask about the mencvcd script, so
> let me know in whatever appropriate manner ;-)
For a proper solution of the problem the guys that wrote the script
would be the once to correct the problem.

> First, I could not simply do:
> 
> mencvcd <name> -svcdout <file.avi>
> 
> because I got this error:
> 
> ++ WARN: [yuvscaler] Could not infer norm (PAL/SECAM or NTSC) from input data
> (frame size=576x432, frame rate=11988011:500000 fps)!!**ERROR: [yuvscaler] No
> norm specified, cannot determine VCD output size. Please use the -n
> option!**ERROR: [mpeg2enc] Could not read YUV4MPEG2 header: system error (failed
> read/write)!
The problem ist the framerate specifed: 11988011:500000, in combination
with you unusal framsize yuvscaler does not know what to do. The
framerate: 11988011:500000 is closte to 24000:1001, so you should add
yuvfps before yuvscaler into the queue and ony change the framerate
header to 24000:1001, lookes like that: ... | yuvfps -c -r 24000:1001 |
...

You might have to set the framerate in mpeg2enc too. 

> So I did some playing around, and tried this:
> 
> $mencvcd <name> -svcdout -vfr 4 -tvnorm n <file>.avi
> 
> and it successfully encoded, but the sound was way *behind* the video, by about
> 15- 20 seconds.
Than there is something else wrong. I guess the -tvnorm add some options
which are misinterpreded 30000:1001 FPS instead of the 24000:1001

> Before I try playing around again (this takes a loooong time), should I be going
> for a *higher* video framerate, or lower? I can't wrap this poor holiday-boozing
> noggin around it right now...
If you have encode some shorter streams first.

auf hoffentlich bald,

Berni the Chaos of Woodquarter

Email: sha...@ut...
www: http://www.lysator.liu.se/~gz/bernhard