hi -
> From: Matto Marjanovic <[EMAIL PROTECTED]>
>
> I won't get around to packaging a version of y4mscaler which handles all
> this properly for another week or so. However, the preliminary testing
> I did last night showed a plainly visible improvement in NTSC DV material.
> I am pleased with myself.
I was all set to see what the difference looked like when I re-read
the paragraph above. Something to look forward to!
Now a y4mscaler question...
When should, if ever, the "-O chromass=420_MPEG2" be used?
From one y4mscaler run:
INFO: [y4mscaler] === SOURCE parameters: =================
INFO: [y4mscaler] < stream:
INFO: [y4mscaler] < 720x480, SAR 10:11, bottom-field-first
INFO: [y4mscaler] < chroma subsampling: 420_jpeg
INFO: [y4mscaler] < chroma ss ratio x 1:2 y 1:2
INFO: [y4mscaler] < active region:
INFO: [y4mscaler] < 720.000000x480.000000 at 0.000000,0.000000
INFO: [y4mscaler] < matte region:
INFO: [y4mscaler] < 720x480 at 0,0 (bg Y'CbCr: 16,128,128)
INFO: [y4mscaler] === SCALING parameters: ================
INFO: [y4mscaler] | Scaler: Matto's Generic Scaler
INFO: [y4mscaler] === TARGET parameters: =================
INFO: [y4mscaler] > stream:
INFO: [y4mscaler] > 720x480, SAR 10:11, bottom-field-first
INFO: [y4mscaler] < chroma subsampling: 420_jpeg
INFO: [y4mscaler] > active region:
INFO: [y4mscaler] > 720x480 at 0,0 (bg Y'CbCr: 16,128,128)
INFO: [y4mscaler] > X ratio: 1/1
INFO: [y4mscaler] > Y ratio: 1/1
Says the input is "420_jpeg" and that is being carried over to
the output. When encoding to MPEG-2 should "-O chromass=420_MPEG2"
be used?
Thanks!
Steven Schultz
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