https://bugs.kde.org/show_bug.cgi?id=501150
Bug ID: 501150
Summary: "Render full color range" setting works opposite to
what you expect
Classification: Applications
Product: kdenlive
Version: 24.12.2
Platform: Debian unstable
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Rendering & Export
Assignee: j...@kdenlive.org
Reporter: leo.argentino....@gmail.com
Target Milestone: ---
Created attachment 179181
--> https://bugs.kde.org/attachment.cgi?id=179181&action=edit
3 files inside .zip (test.mkv and 2 screen captures)
SUMMARY
The "Render full color range" setting works opposite to what you expect
When you check it, output file file looks with much brighter and washed colors.
STEPS TO REPRODUCE
1-create new "HD 1080p 60 fps" project
2-add test.mkv (attached file)
3-copy this clip to timeline
4-Project>Render...
--Output file= test.mp4
--Presets= Hardware Accelerated, NVENC H264 VBR
--Interpolation= Lanczos (best)
--Deinterlacer= BWDIF (best)
--"Render full color range" CHECKED
--Aspect Ratio= Horizontal(16:9)
--CustomQuality= 100%
--Encoder= 8 Threads
OBSERVED RESULT
The test.mp4 file looks with much brighter and washed colors.
But if you leave the box unchecked, the result is indistinguishable from the
original test.mkv.
This can be verified by opening the files with SMPlayes or importing the new
test.mp4 clip into kdenlive project (I have attached two images)
EXPECTED RESULT
The colors most faithful to the original video should be obtained by leaving
"Render full color range" CHECKED
SOFTWARE/OS VERSIONS
I'm using Cinnamon desktop environment and kdenlive-24.12.2-x86_64.AppImage
Kdenlive: 24.12.2
MLT: 7.30.0
FFmpeg
KDE Frameworks: 6.10.0
Qt: Using 6.8.1 and built against 6.8.1
Debian GNU/Linux trixie/sid (Xcb)
Build ABI: x86_64-little_endian-lp64
Kernel: linux 6.12.12-amd64
ADDITIONAL INFORMATION
Same results are obtained with debian package
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