We still do not know what is his colorspace of input video, if it is
only yuv420p then conversion to prores_ks profile:v 1 (yuv422p10) will
be losy, not to mention that prores is itself losy, why not use native
yuv420p? If you really need change codec why not use utvideo it can
loseless yuv420,yuv422,yuv422p10,rgb,rgb10,etc.... or just use avisynth
scrypt and load direct to AME...
+full_chroma_int flag show that you doing conversion of colorspace
W dniu 2017-03-23 o 18:12, Erik Dobberkau pisze:
ffmpeg -y -i in.mxf -r 25 -vf settb=1/25 -flags +ilme+ildct -timecode
00:00:00:00 -acodec pcm_s16le -filter_complex
"[:1:a][:2:a]amerge=inputs=2[aout]"
-map "[aout]" -map 0:0 -qscale:v 6 -vcodec prores_ks -profile:v 1
-video_track_timescale 25 -copytb -1 out.mov
This will give you ProRes LT, I suppose this is intended? Do you also
generate the same format (i.e. resolution, scan, bitrate/profile) from AME?
MP4 Conversion:
ffmpeg -y -i in.mp4 -acodec pcm_s16le -vcodec prores_ks -profile:v 1 -vf
scale=interl=1 -sws_flags full_chroma_inp+full_chroma_int -copytb -1
out.mov
Same here, and did you test if removing the +full_chroma_int flag made a
difference?
Erik
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