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 >>> >>> 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@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 😎 > 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+} >>> >> > >
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