чт, 3 нояб. 2022 г., 21:28 Terje J. Hanssen <[email protected]>:
Den 03.11.2022 16:17, skrev Andrew Randrianasulu:
чт, 3 нояб. 2022 г., 17:52 Terje J. Hanssen <[email protected]>:
Den 03.11.2022 01:42, skrev Andrew Randrianasulu via Cin:
чт, 3 нояб. 2022 г., 03:34 Andrew Randrianasulu <[email protected]
:
чт, 3 нояб. 2022 г., 03:14 Andrew Randrianasulu <[email protected]
:
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
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@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
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 😎
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/[email protected]/msg02048.html
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(?)
----
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...
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.