[FFmpeg-trac] #979(undetermined:new): Unexpected Color Conversion (bgr->yuv vs rgb->yuv)
FFmpeg
trac at avcodec.org
Sun Feb 5 06:26:56 CET 2012
#979: Unexpected Color Conversion (bgr->yuv vs rgb->yuv)
-------------------------------------+-------------------------------------
Reporter: natt | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by natt):
Replying to [comment:1 richardpl]:
> Whatever issue you are reporting I can not reproduce it.
> rgb24(->bgr24)->yuv is fine here
The two conversions should be identical, right? Since rgb24<->bgr24 is
lossless, bgr->rgb->yuv should produce the same output as bgr->yuv. If it
doesn't, it's not working right.
ffmpeg -f rawvideo -video_size 256x256 -pix_fmt bgr24 -i testin.raw
-sws_flags lanczos -f rawvideo -pix_fmt yuv420p md5:
0ba2a7494930baaa64869462d54b85cc
ffmpeg -f rawvideo -video_size 256x256 -pix_fmt bgr24 -i testin.raw
-filter format=rgb24 -sws_flags lanczos -f rawvideo -pix_fmt yuv420p md5:
d5bd2d94675b67d23eb2661ca462966d
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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/979#comment:2>
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