On Mon, 23 May 2005, Steven M. Schultz wrote:
Do you see anything like that 'Deprecated X-tag' message? If you're
using the cvs version of mjpegtools you should see that message.
Yes, I get them all the time :)
bash-2.05b$ smil2yuv test.dv | yuvscaler -I USE_576x512+0+0 -O DVD | head -n 1
YUV4MPEG2 W720 H576 F25:1 Ib A59:60 C420jpeg XYSCSS=420PALDV
What happens if you use y4mscaler?
y4mscaler works perfectly. I get:
bash-2.05b$ smil2yuv test.dv | y4mscaler -I active=576x384+0+0cc | head -n 1
YUV4MPEG2 W720 H576 F25:1 Ib A59:45 C420paldv
Because y4mscaler is not included in mjpegtools and not commonly found in
Linux distro's, I don't want my video processing scripts to have a
dependency on y4mscaler. Use of y4mscaler should be optional. So, my hopes
are that this is a bug in yuvscaler that can be fixed.
Does anything change or behave differently if you build the cvs version
of smilutils?
I will try that, will take some time.
Oh, you probably need to convert the 420PALDV to 420MPEG2 before
encoding - so you'll need to use 'y4mscaler -O chromass=420mpeg2' .
Might as well add the '-I active=...' and do everything in one step ;)
Well, I prefer yuvscaler because I don't want my scripts to have a
dependency on y4mscaler. Using y4mscaler is optional, and is currently
only used for high quality chroma scaling, when y4mscaler is available.
None of the MJPEG tools seem to have problems with the usual pipeline:
smil2yuv test.dv | ... | ... | mpeg2enc ...
so, use of y4mscaler seems unnecessary.
Cheers,
Dik
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