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On Thursday 15 December 2005 13:51, Iain Buchanan wrote: |
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> haha! I had to buy a usb hd enclosure, and I wanted a mp3 player, so I |
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> thought I'd mix them all together (plus throw in some more features)! |
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> It also copies from memory card to its hd without plugging into the |
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> computer - useful for when my camera memory card fills up. I have a |
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> trigger happy finger... but I digress! |
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Interesting.. |
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> 3. with a video file recorded from my digital still camera[1], I can't |
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> fast forward or re-wind (on the device). Is this a "feature" of AVI, or |
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> probably of the device? (Apparently mplayer can do it because it |
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> creates some sort of sudo-index?) |
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seeking is not what a video camera is made for. The type of compression |
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you're dealing with: |
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> $ file *AVI |
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> CIMG1957.AVI: RIFF (little-endian) data, AVI, 320 x 240, ~15 fps, video: |
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> Motion JPEG |
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|
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Is motion jpeg, a form where video is composed of individual jpeg frames[1], |
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v. other algorithms to speed up the process of video rendering. Those are |
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best converted, as the seeking in them takes a bit more power than |
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traditional mpegs. In fact, there are actually cards avaliable to help |
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leviate the render processing from your cpu. |
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|
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> -- |
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> Iain Buchanan <iaindb at netspace dot net dot au> |
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> |
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> I don't think it's worth washing hogs over. |
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> -- Larry Wall in <199710060253.TAA09723@××××.org> |
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Chris White |
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|
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[1] |
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http://www.siggraph.org/education/materials/HyperGraph/video/codecs/MJPEG.html |
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