[Cin] dvdcreate and filempeg patches

[Phyllis Smith]

Andrew, testing with this latest patch in seems OK.  In 1 case, it looked
like "use ffmpeg / do not interlace" looked worse on the dvd/TV player than
without the mod in, but a second dvd creation showed no worse.  So it was
probably just the dvd media itself which is a re-writable dvd that I use
over and over and over.

I will check this mod in next time I reboot the desktop.
Not sure why "use ffmpeg" is even an option because it looked quite a bit
worse than using mpeg2enc.C!

On Fri, Jun 9, 2023 at 7:08 PM Andrew Randrianasulu via Cin <
cin at lists.cinelerra-gg.org> wrote:

> new patch on top of already applied, for me with "use ffmpeg" and
> deinterlacer it sets correctly main session to progressive and renders from
> it (exact location is important, I was getting same tff result if I put
> those lines under ffmpeg branch, much after resample/rechanelling.)
>
> I hope setting full session to progressive is ok in this case because we
> add deinterlacer over whole vid track ... Should study deinterlacer's
> setting so they also can be set according to session params ... before I
> overwrite them ...
>
> пт, 9 июн. 2023 г., 19:44 Andrew Randrianasulu <randrianasulu at gmail.com>:
>
>>
>>
>> пт, 9 июн. 2023 г., 18:59 Terje J. Hanssen <terjejhanssen at gmail.com>:
>>
>>>
>>> [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?
>>>
>>
>> 2) should be fixed, 3) is something I'll try to investigate.
>>
>>>
>>>
>>> 5) Which de-interlace filters are used in CinGG with mpeg2enc and ffmpeg?
>>>
>>
>> If you check "deinterlace" box in DVD  creation window - internal
>> cinelerra's deinterlacer (you can configure it just before confirming batch
>> render in second window).
>>
>> In general I think you can try other types of deinterlacers manually.
>>
>>
>>> I.e some users claims that Bwdif is better than Yadif for ffmpeg.
>>>
>>>
>>>
>>>
>>> --
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> Cin at lists.cinelerra-gg.org
> https://lists.cinelerra-gg.org/mailman/listinfo/cin
>
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