On Wednesday, November 24, 2021, Terje J. Hanssen via Cin < [email protected]> wrote:
> I pick up again and continue another thread on this topic started a year > ago: > https://www.mail-archive.com/[email protected]/msg02145.html > > > In this post I start carefully with three questions regarding manual > definitions and procedure in this section: > https://cinelerra-gg.org/download/CinelerraGG_Manual/HDV_on_ > Blu_ray_Disc_Without.html > > 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. >> > > ========== > > Q1. My HDV 1080i video file transfered from tape to HDD via Firewire, get > a file extension M2T, which then is recognized as format MPEG-TS by > Mediainfo. > AFAIK the next generation camcorders after HDV used H.264/AVC (AVCHD)? i think yes... > ========= > > Legal input for >> Video – MPEG1VIDEO, MPEG2VIDEO, H264; >> Audio – MP1, MP2, AC3, AC3PLUS, DTS, TRUHD. >> > > > To verify this with FFMpeg for the previous HDV test-file > "20081103140154.m2t" available on internet: > > ffmpeg -i 20081103140154.m2t 2>&1 >/dev/null | egrep "Audio|Video" > > Stream #0:0[0x810]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), > yuv420p(tv, bt709, top first), 1440x1080 [SAR 4:3 DAR 16:9], 25000 kb/s, 25 > fps, 25 tbr, 90k tbn, 50 tbc > Stream #0:1[0x814]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, > stereo, fltp, 384 kb/s > > > According to the manual, both the HDV MPEG2Video stream and MP2 audio > stream should be legal input to create a Blu-ray disc. > > However, MP2 isn't on Sony's list or other I have seen over audio and > video codecs supported on Blu-ray Disc media. > https://www.sony.com/electronics/support/articles/00029663 > > > Q2. Can someone clarify if MP2 rather should be transcoded to i.e AC3 > instead, possibly also remux to BDAV/M2TS if required (below)? > (On my first attempt with "MTS" format, Mediainfo reported this > FileExtension_Invalid: ts m2t m2s m4t m4s tmf ts tp trp ty) from http://blu-raydisc.com/assets/Downloadablefile/BD-ROM-AV-WhitePaper_110712.pdf p. 19 it seems mp2 is not allowed on Bd-rom disks (and ffmpeg's muxer had or even today have problems with muxing lpcm into bd-compatible m2ts?) so yeah, transcoding seems to be only way, manual need correction. I think while mp2 allowed in generic transport stream it is not allowed on bluray especially (at least by standart) > > ========= > > Q3. I also wonder if the manual command procedure creates a BDAV or a BDM > structure, and optional if a DVD-RW disc can be used to create and playback > this "Blu-ray disc" using a Blu-ray burner and a standalone UHD-Blu-ray > player device? (At the time I have no free BD-R/RE discs left) I tried to find anyone with player for doing experiment like this - no luck! of course you are encouraged to try, just lower bitrate to 8-9 mbit/s total > > ========= > > > Transcode to AC3 and remux to M2TS with FFMpeg if required: > > ffmpeg -i 20081103140154.m2t -acodec ac3 -vcodec copy 20081103140154.m2ts > > > ffmpeg -i 20081103140154_m2t-ac3.m2ts 2>&1 >/dev/null | egrep "Audio|Video" > ......... > Stream #0:0[0x1011]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), > yuv420p(tv, bt709, top first), 1440x1080 [SAR 4:3 DAR 16:9], 25000 kb/s, 25 > fps, 25 tbr, 90k tbn, 50 tbc > Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo, > fltp, 192 kb/s > > > mediainfo 20081103140154_m2t-ac3.m2ts > .......... > General > ID : 1 (0x1) > Complete name : 20081103140154_m2t-ac3.m2ts > Format : BDAV > Format/Info : Blu-ray Video > File size : 42.2 MiB > Duration : 13 s 360 ms > Overall bit rate mode : Variable > Overall bit rate : 26.4 Mb/s > > Video > ID : 4113 (0x1011) > Menu ID : 1 (0x1) > Format : MPEG Video > Commercial name : HDV 1080i > Format version : Version 2 > Format profile : Main@High 1440 > Format settings : CustomMatrix / BVOP > Format settings, BVOP : Yes > Format settings, Matrix : Custom > Format settings, GOP : M=3, N=12 > Format settings, picture structure : Frame > Codec ID : 2 > Duration : 13 s 440 ms > Bit rate mode : Constant > Bit rate : 25.0 Mb/s > Width : 1 440 pixels > Height : 1 080 pixels > Display aspect ratio : 16:9 > Frame rate : 25.000 FPS > Standard : Component > Color space : YUV > Chroma subsampling : 4:2:0 > Bit depth : 8 bits > Scan type : Interlaced > Scan order : Top Field First > Compression mode : Lossy > Bits/(Pixel*Frame) : 0.643 > Stream size : 40.3 MiB (95%) > Color primaries : BT.709 > Transfer characteristics : BT.709 > Matrix coefficients : BT.709 > > Audio > ID : 4352 (0x1100) > Menu ID : 1 (0x1) > Format : AC-3 > Format/Info : Audio Coding 3 > Commercial name : Dolby Digital > Codec ID : 129 > Duration : 13 s 440 ms > Bit rate mode : Constant > Bit rate : 192 kb/s > Channel(s) : 2 channels > Channel layout : L R > Sampling rate : 48.0 kHz > Frame rate : 31.250 FPS (1536 SPF) > Compression mode : Lossy > Delay relative to video : -5 ms > Stream size : 315 KiB (1%) > Service kind : Complete Main > > Menu > ID : 256 (0x100) > Menu ID : 1 (0x1) > Duration : 13 s 360 ms > List : 4113 (0x1011) (MPEG Video) / > 4352 (0x1100) (AC-3) > Service name : Service01 > Service provider : FFmpeg > Service type : digital television > > ============= > > Terje J. H > -- > Cin mailing list > [email protected] > https://lists.cinelerra-gg.org/mailman/listinfo/cin >
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