[FFmpeg-trac] #6574(swscale:new): ffmpeg butchers video quality when downscaling
FFmpeg
trac at avcodec.org
Tue Aug 8 13:27:41 EEST 2017
#6574: ffmpeg butchers video quality when downscaling
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Reporter: birdie | Owner:
Type: defect | Status: new
Priority: critical | Component: swscale
Version: 3.2.4 | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by birdie):
Oops, I've forgotten to add the encoding string:
ffmpeg -i source.mkv -vf scale=768x342 -c:v libx264 -preset veryslow
-x264opts keyint=230:min-keyint=23:bframes=16 -crf 0 -tune film result.mkv
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Ticket URL: <https://trac.ffmpeg.org/ticket/6574#comment:1>
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