[FFmpeg-trac] #4614(undetermined:new): sws_dither arguments aren't affecting output in colorspace conversion
FFmpeg
trac at avcodec.org
Fri Jun 12 17:52:49 CEST 2015
#4614: sws_dither arguments aren't affecting output in colorspace conversion
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Reporter: surfdog2020 | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: 2.6.3 | undetermined
Keywords: sws_dither | Resolution:
dithering | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by surfdog2020):
I'm looking to be able to specify the dithering algorithm used. I tried:
./ffmpeg -v debug -sws_flags +accurate_rnd+full_chroma_inp+full_chroma_int
-y -i /mnt/storage/ProRes_10bit_422.mov -t 30 -pix_fmt yuv420p -an
-threads 36 -vf scale=1920:-1:sws_dither='''a_dither'''
mnt/storage/raw_8bit_420_adither.yuv
./ffmpeg -v debug -sws_flags +accurate_rnd+full_chroma_inp+full_chroma_int
-y -i /mnt/storage/ProRes_10bit_422.mov -t 30 -pix_fmt yuv420p -an
-threads 36 -vf scale=1920:-1:sws_dither='''bayer'''
mnt/storage/raw_8bit_420_bayer.yuv
Both output files are still equal to each other, have the same md5 value.
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Ticket URL: <https://trac.ffmpeg.org/ticket/4614#comment:7>
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