[Cin] HDV manual section need some work

[Andrew Randrianasulu]

чт, 3 нояб. 2022 г., 21:28 Terje J. Hanssen <terjejhanssen at gmail.com>:

>
>
> Den 03.11.2022 16:17, skrev Andrew Randrianasulu:
>
>
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> чт, 3 нояб. 2022 г., 17:52 Terje J. Hanssen <terjejhanssen at gmail.com>:
>
>>
>>
>> Den 03.11.2022 01:42, skrev Andrew Randrianasulu via Cin:
>>
>>
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>> чт, 3 нояб. 2022 г., 03:34 Andrew Randrianasulu <randrianasulu at gmail.com
>> >:
>>
>>>
>>>
>>> чт, 3 нояб. 2022 г., 03:14 Andrew Randrianasulu <randrianasulu at gmail.com
>>> >:
>>>
>>>> I think we can add some clarification
>>>>
>>>> ---
>>>> HDV on a Blu-ray Disc Without Re-encoding
>>>>
>>>> An MTS file is a video file saved in the high-definition (HD) MPEG
>>>> Transport Stream video format, commonly called AVCHD. It contains HD video
>>>> compatible with Blu-ray disc format and is based on the MPEG-2 transport
>>>> stream. MTS files are often used by Sony, Panasonic, Canon and other HD
>>>> camcorders. Legal input for Video – MPEG1VIDEO, MPEG2VIDEO, H264; Audio –
>>>> MP1, MP2, AC3, AC3PLUS, DTS, TRUHD.
>>>>
>>>> Note, mp2 and mp1 audio codecs are valid for transport stream itself
>>>> but not as on-disk format for Blu-Rays.
>>>>
>>>> In this case you still can save original video by using ffmpeg's
>>>> switches
>>>>
>>>>  -c:v copy -c:a ac3 , while outputting into another temporal ts
>>>> container.
>>>>
>>>> {waiting for Terje's results on pcm_bluray case}
>>>>
>>>>
>>>> ---
>>>>
>>>>
>>>> I think all m2ts files you used for testing were h264/aac (or ac3), not
>>>> from-camcoder HDVs with mpeg2 video/mp2 audio.
>>>>
>>>> you can try HDV-in-mov from this folder as ffmpeg test file, I think
>>>>
>>>> http://samples.mplayerhq.hu/mov/FCP/
>>>>
>>>
>>> oh, this is not mp2 audio but pcm audio. And ..not exactly kind of pcm
>>> used on blurays!
>>>
>>> so this line work, note mpegts_m2ts_mode switch for enabling more bluray
>>> like output, without it ffmpeg will mux audio into private stream -  good
>>> luck getting it back!
>>>
>>> ffmpeg -i  HDV_1080i50.mov -c:v copy -c:a pcm_bluray  -mpegts_m2ts_mode
>>> 1 hdv.mts
>>>
>>> then tsmuxer recognizes mts file as below:
>>>
>>> ~/tsMuxer $ tsmuxer hdv.mts
>>> tsMuxeR version 2.6.16-dev. github.com/justdan96/tsMuxer
>>> Track ID:    4113
>>>  Stream type: MPEG-2
>>> Stream ID:   V_MPEG-2
>>> Stream info: Profile: Main at 6. Resolution: 1440:1080i. Frame rate: 25
>>> Stream lang:
>>>
>>> Track ID:    4352
>>> Stream type: LPCM
>>> Stream ID:   A_LPCM
>>> Stream info: Bitrate: 1536Kbps  Sample Rate: 48KHz  Channels: 2  Bits
>>> per sample: 16bit
>>> Stream lang: eng
>>>
>>> Duration: 00:00:08.000
>>>
>>> ====
>>>
>>> I wonder if you can cp this file few times and then cat them back
>>> together for simulating longer video ) ?
>>>
>>>
>> https://github.com/OpenShot/openshot-qt/issues/3428#top
>>
>> this one contain real very short hdv sample with mp2 sound
>>
>> http://twenkid.com/os/3.m2t
>>
>>
>>
>> I can try to dig and test further into this matter later this month - or
>> possibly more realistic next month.
>> Currently I spend some holiday weeks on Gran Canaria 😎
>>
>
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> have good times (even without camcoder!)
>
>
>
>> Some thoughts in advance:
>>
>> Would it possibly be better/clear to differ/split between the formats,
>> HDV video on tape (M2T container) and the successor H264/AVC(HD) video on
>> disk?
>> https://en.wikipedia.org/wiki/HDV
>>
>
> sure, right now it confusing.
>
>
>
>>
>> Possibly you still have the probably little longer HDV 1080i sample file,
>> "20081103140154.m2t" we used for the HDV format patch here
>> https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg02048.html
>>
>
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> yeah, will call my friend 'find' )
>
> thanks!
>
>
>
>>
>> And if  Phyllis has access to a Blu-ray disc burner and BD hw player,
>> testing could possibly start sooner(?)
>>
>>
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>>>
>>>
>>>
>>>>
>>>> ----
>>>>
>>>> For creating a blu-ray disc, if you have HDV MPEG-2 media that is in
>>>> blu-ray format, you can save the original quality of your work, rather than
>>>> rendering it to another format.
>>>>
>>>>
>>>> {I hope Terje will let us know if bdwrite still works with bluray pcm
>>>> audio as produced by ffmpeg 5.1+}
>>>>
>>>
> I forgot one question:
> Will it be possible and how to access and use ffmpeg-5.x included with
> Cin-GG in a terminal as usual?
>



if you compile your own cinelerra ffmpeg binary will be in
thirdparty/ffmpeg-5.1/ffmpeg


we do not install this binary because cin does all work via library
interface.

So I think you can do single-user build and then play with compiled binary
and may be even use it in shell scripting as described in

https://cinelerra-gg.org/download/CinelerraGG_Manual/Menu_Bar_Shell_Commands.html



> The latest openSUSE Leap 15.4 distro I use, has so far no official
> ffmpeg-5.x package or codec enabled from Packman.
> I have add-installed ffmpeg-5.1.2 from OBS (Open Build Service), but don't
> know if it works.
>
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