HuffYUV on a mac?

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HuffYUV on a mac?

Postby gambitt » Tue Nov 19, 2002 11:15 am

Is there anything in Quicktime that has the same lossless/filesaving qualities as HuffYUV? Can macs read Huff anyway?
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Postby Quu » Tue Nov 19, 2002 11:44 am

considering that HuffYUV is open source... anybody with the Quicktime SDK should be able to port it to the mac...
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Postby trythil » Tue Nov 19, 2002 12:14 pm

There's no HuffYUV in Quicktime proper, but there are native formats available in Quicktime designed for transport of high-resolution, uncompressed video:


- "2VUY", also called "Component Y'CbCr 8-bit 4:2:2". All that means is that the format devotes 8 bits per luma and blue/red chroma channels, and that a 2:1 sampling ratio exists between the luma and chroma channels (i.e. for every red/blue chroma component (or "pixel") there exist two luma samples). This is generally a good thing to use if you ever have the need.

- "v410", also called "Component Y'CbCr 10-bit 4:4:4". Same as above, except that you devote 10 bits per channel, and have a 1:1 sampling ratio between luma and chroma. If you have the disk space, try this.

- "v408", also called "Component Y'CbCrA 8-bit 4:4:4:4", which is the same as above, except it uses 8 bits per channel, and adds an alpha channel. I've really only found this to be useful in producing intermediate editing files, but I'm no DV professional, and I'm sure that the alpha channel is used in clever ways by other pieces of hardware.

..and more. See http://developer.apple.com/quicktime/ic ... ch019.html for more information. Be forewarned -- it's very technical in nature.
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Postby AbsoluteDestiny » Tue Nov 19, 2002 5:20 pm

um... but aren't those uncompressed?
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Postby trythil » Tue Nov 19, 2002 5:40 pm

AbsoluteDestiny wrote:um... but aren't those uncompressed?


They are. However, given that most people use HuffYUV as a medium for storing footage to be edited at a later time, I thought it appropriate to point out a few similar facilities native to Quicktime, as it seemed to me that that's what gambitt was trying to do.

It's not impossible for HuffYUV to exist in a Quicktime container. However, I'm not aware of any such project that has done such a thing, or is attempting to do such a thing.
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