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Originally Posted by karl_lillevold
So what I tried next was the following:
Video 1:
Rawsource("foremn_c.yuv",352,288,"I420").AssumeFPS(30.0).Crop(2,2,-2,-2)
resulting in 348x284 video. I saved 10 frames, using Direct Stream Copy. Then I added back borders:
AVISource("f_crop.avi").AddBorders(2,2,2,2)
Again saved using Direct Stream Copy.
Then I compared this with the original video, and the only pixels that differed, were the ones within the 2 pixel border around the edge.
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Did some tests got the same result here, too. The final video looks identical to the original source in VdubMod, so nothing gets changed on the encoding/decoding side. But when I fed it cropped source without restoring the borders to give it it's original width back, it still looked darker though, so i guess the presumed bug must be in the YV12->RGB conversion for preview section of VdubMod. Fast recompress or direct stream copy isn't affected, but according to my tests full processing is. Anyway, this is the wrong thread for this, i'm heading over to VdubMod.
