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| cyberbeat |
| Posted: Jan 19 2003, 09:31 PM |
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I have a video (compress with huffyuv, dark colors), I saved it first (with huffyuv) in Full-Processing-Mode, with no filter active and no other changes to the video-data, but the quality was worse and colors changed. No such problems in "Recompress"-Modes. With a lossless codec like huffyuv, can this be? |
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| Morsa |
| Posted: Jan 19 2003, 10:43 PM |
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Moderator of the Vdub support board
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Joined: 9-September 02
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Are you using Huffy in RGB mode or in YUV??
If you use YUV remember the clors will be degraded each time you recompress. |
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| cyberbeat |
| Posted: Jan 20 2003, 02:30 PM |
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if this would be the reason, then in "recompressing"-mode the problem would appear, too |
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| ChristianHJW |
| Posted: Jan 20 2003, 03:20 PM |
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Advanced Member
Group: Moderators
Posts: 1768
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Interesting .. you turn here for help and then go tell us how Virtualdub works .... lol.
FYI : in 'Full processing mode' Vdub only accepts RGB input, as all Vdub filter work in RGB colour space only. This means HuffYuvs internal colour conversion routines have to change YUV to RGB, and back again after running through the filter chains. It doesnt matter at all if you actually have a filter inserted or not !!
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| cyberbeat |
| Posted: Jan 23 2003, 11:05 AM |
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ah, thanks, I think I understand..
it's all right with virtual dub ;-)
whats a solution? the "internal color-conversion-routines" in huffyuv seem to be really bad (in my case)
is it not possible to apply filters now on the (with huffyuv-yuv-compressed) video without big quality-loss? |
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