[FFmpeg-trac] #2452(undetermined:closed): decoding yuv420p to rgb shifts luminance down
FFmpeg
trac at avcodec.org
Wed Dec 24 20:13:34 CET 2014
#2452: decoding yuv420p to rgb shifts luminance down
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Reporter: burek | Owner:
Type: defect | Status: closed
Priority: normal | Component:
Version: git-master | undetermined
Keywords: | Resolution:
Blocking: | needs_more_info
Analyzed by developer: 0 | Blocked By:
| Reproduced by developer: 1
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Comment (by glopes):
Replying to [comment:17 michael]:
> The input file is correctly decoded, the fault is in what / how created
the input file. I would guess that the wrong pixel format was used mixing
jpeg and mpeg luma ranges
Well, in regards to "what" created the input file, it was FFmpeg itself,
so if there is anything wrong in the encoder it is a bug in FFmpeg as
well.
Also, ffmpeg version N-51639-g7775992 was correctly decoding the file, so
clearly something changed, would at least be helpful to know what.
Did anyone try the patch in comment:11?
I'll try encoding/decoding grayscale in the latest ffmpeg and report what
I find there.
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Ticket URL: <https://trac.ffmpeg.org/ticket/2452#comment:18>
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