[FFmpeg-user] Slight blur on converted video

Dave dave at bit.st
Thu Mar 23 21:02:17 EET 2017


> On 24 Mar 2017, at 4:12 am, Erik Dobberkau <erik.dobberkau at gmail.com> wrote:
> 
>> 
>> 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?

The resolution, scan and bitrate/profile are all the same in 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?

Without +full_chroma_int the problem is still just as bad.

> 
> Erik
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