On Sun, 23 Oct 2005, John Gay wrote:
> Well, I've seen Steve go on about it enough, so I decided to try it, but I
Not quite the same thing - I've not done the png2yuv part. Scaling
yes ;)
> But if I use something like this:
> png2yuv -j xw_test%02d.png -f 25 -I p | y4mscaler -I sar 1:1 -O
> preset=DVD_WIDE
Worked for me when I processed a PNG that I happened to have handy:
png2yuv -j black.png -f 25 -I p | y4mscaler -I sar=1:1 -O preset=DVD_WIDE
worked ok.
> I know steve's explained this plenty of times, but I can't seem to find it in
> my mailbox?
y4mscaler will give the "streams only" message when one of its
arguments isn't exactly correct.
What happens if you try just one of the images like this:
png2yuv -j test01.png -f 25 -I p | head -n 1
that should give something
YUV4MPEG2 W720 H480 F25:1 Ip A0:0 C420jpeg
Next add y4mscaler to the command:
png2yuv -j black.png -f 25 -I p | y4mscaler -I sar=1:1 -O preset=DVD_WIDE |
head -n 1
I get:
YUV4MPEG2 W720 H576 F25:1 Ip A118:81 C420mpeg2
Then generalize and use the '%02d' form.
Off hand I can't see anything wrong with your command - and I can't
seem to reproduce the problem here.
> I've finally got a Dual Opteron box and wanted to see what it can do, and I
> can't get it to co-operate )-:
It can do plenty :)
Cheers,
Steven Schultz
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