Den 06.06.2023 17:54, skrev Andrew Randrianasulu:
[snip]
Here were a lot to sort out:
The dvd-wide-ffmpeg+mpeg2enc.m2v from here is also scaled or
streched too high in vertical direction.
may be add "expand" filter after crop, so image dimensions will be
back to dvd standard?
VLC deinterlaced on playback (keyboard D) on interlaced m2v gives
better quality.
In comparision the ffmpeg command line I have used is:
ffmpeg -i dv01.dv -f dvd -target pal-dvd -aspect 16:9
-vb 8000k -mbd rd -trellis 1 -cmp 0 -subcmp 2 -vf
crop=iw-0-0:ih-106-65:0:
which results in progressive and DAR 16:9, but still not
so good edge quality
May be "progressive" here is error, and ffmpeg still encodes
interlaced-as-progressive, so VLC for example does not enable
deinterlacer at playback automatically?
VLC Deinterlaced ON playback of Progressive dvd-wide-dv01.mpg
results in more coarced jagged or saw-toothed round edges
Have you tried to add interlaced flags manually to ffmpeg's
command line?
-flags +ilme+ildct gives interlaced bff
Yeah, I just suspect ffmpeg was defaulting to progressive flags in
stream and progressive setting for mpeg2 encoder WITHOUT
automatically inserting deinterlacer, so result was plainly wrong.
Metadata copy by default was apparently fixed in 4.4, yet interlace
may remain corner case ...
[snip]
I hope this sum up of the 4 variants I get from Cin DVD creating, using
the current unpatched version:
Input file: PAL DV interlaced 4:3
Output DVD cropped to 16x9
The dvd folder file names below are else descriptive
Deinterlaced checked (di):
1) mediainfo ./dvd_wide_cin_di-ffmpeg_20230608-184940/dvd.mpg | grep Scan
Scan type : Progressive
2) mediainfo ./dvd_wide_cin_di_mpeg2enc_20230608-201519/dvd.mpg | grep Scan
Scan type : Interlaced
Scan order : Top Field First
Non deinterlaced (unchecked):
3) mediainfo ./dvd_wide_cin_ffmpeg_20230608-203740/dvd.mpg | grep Scan
Scan type : Progressive
4) mediainfo ./dvd_wide_cin_mpeg2enc_20230608-191936/dvd.mpg | grep Scan
Scan type : Interlaced
Scan order : Top Field First
Obviously 2) and 3) are wrong
Are they fixed in the patched version?
5) Which de-interlace filters are used in CinGG with mpeg2enc and ffmpeg?
I.e some users claims that Bwdif is better than Yadif for ffmpeg.
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