Hi -
> From: Matto Marjanovic <[EMAIL PROTECTED]>
>
> With the patch, if you specify "-i 2" to smil2yuv, then the output
> stream will be in the 4:1:1 subsampling mode native to NTSC DV ---
> which can then be converted properly to 4:2:0 by y4mscaler. (The
Uh, does this mean what I think it means? That all this time
smil2yuv has been producing the wrong output for NTSC folks which I/we
have been making SVCD/DVDs with?
The assumption has, obviously, been that the output of smil2yuv
was 4:2:0 suitable for induction into the mjpegtools chain.
Or is it the case that y4mscaler's 4:1:1 -> 4:2:0 conversion is
more accurate (better) than what is currently being done?
> subsampling mode is identified by an 'X' tag in the YUV4MPEG2 header.
> This patch also will identify PAL streams as the PAL-DV variant of
> 4:2:0, so that they can be processed appropriately by y4mscaler.)
Hmmm, anything outside of y4mscaler know about that 'X' tag yet? ;)
Cheers,
Steven Schultz
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