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18th October 2009, 23:07 | #1 | Link |
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Join Date: Mar 2005
Location: Amsterdam
Posts: 46
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Compression of black bars in AVC, does it take a lot of space?
I've been experimenting with different encode settings. The original goal was to see for myself the quality difference (if any) at medium bitrates. By mistake I have made one version of 'The Patriot' (2:55hours) with the black bars cropped (17Gigs) and one version without cropping (19Gigs).
I'm having a hell of a lot of trouble actually seeing any difference in both encodes, but that *may* be because the moving part of the movies have roughly the same bitrates while the black bars eat up those 2 extra gigs. I don't really know. What I'm actually asking you folks here is about the compressability of the black bars; Can anyone give me a reasonable conclusion of how cropping black bars affects movie quality when encoding at the same bitrate? (do they compress down to near nothing or are they hungry for bits?) Last edited by tijgert; 18th October 2009 at 23:10. |
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