android_external_ffmpeg/tests/ref/vsynth/vsynth_lena-mjpeg-trell-huffman at android-16.0_r3-8.0 - lineage-rockchip/android_external_ffmpeg - Forgejo: Beyond coding. We Forge.

lineage-rockchip/android_external_ffmpeg

Ramiro Polla 4bee010844 swscale/range_convert: fix truncation bias in range conversion

384fe39623 introduced a regression in the
range conversion offset calculation, resulting in a slight green tint
in full-range RGB to YUV conversions of grayscale values.

The offset being calculated was not taking into consideration a bias
needed for correctly rounding the result from the multiplication stage,
leading to a truncated value.

Fixes issue #11646.

2025-11-06 20:36:08 +00:00

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 e56231428f6904268b3e556c0a40bfa *tests/data/fate/vsynth_lena-mjpeg-trell-huffman.avi
 tests/data/fate/vsynth_lena-mjpeg-trell-huffman.avi
 d70cf97198aeb53f5a0bc056369ada6d *tests/data/fate/vsynth_lena-mjpeg-trell-huffman.out.rawvideo
 stddev:    4.51 PSNR: 35.04 MAXDIFF:   60 bytes:  7603200/  7603200