[Cin] dvdcreate and filempeg patches

[Andrew Randrianasulu]

сб, 10 июн. 2023 г., 21:53 Phyllis Smith <phylsmith2017 at gmail.com>:

> 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!
>

But it much faster! Also, I guess we can trade some of this speed with
quality settings ...

 from ffmpeg/video/mpeg2_hq.mpeg

sc_threshold=-30000
dc=10
bf=2
trellis=2
mbd=rd
cmp=2
subcmp=2


try to add those to raw.dvd profile?


> 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.
>>>>
>>>>
>>>>
>>>>
>>>> --
>> Cin mailing list
>> Cin at lists.cinelerra-gg.org
>> https://lists.cinelerra-gg.org/mailman/listinfo/cin
>>
>
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