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Re: DU Updates: A couple of weird bits from Japan
08/23/12 09:22 PM
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> It makes more sense than mame's current ld format btw. So why are they still doing > that one again? I mean if you are worried about the quality, change the jpg to a > lossless compressed png and you are good to go.
That's pretty much what the current CHD format does. Video fields are stored as individual images with lossless compression. It's not PNG -- Aaron used his own compression algorithm for it, which beats huffyuv for total file size.
The formats share some similarities, but I guess you could say CHD is optimized for quality, and .ldimg is optimized for performance.
> > I think loading that many jpgs in rapid succession could get a bit hairy, but > otherwise I'm loving that format!
It is intensive, but workable. The MJPEG video codec has done something similar for ages -- JPEG-like compression of individual fields or frames -- but with fairly poor quality vs. size.
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