[Cin] Testing HDV on a Blu-ray Disc Without Re-encoding
Terje J. Hanssen
terjejhanssen at gmail.com
Wed Nov 24 02:52:35 CET 2021
I pick up again and continue another thread on this topic started a year
ago:
https://www.mail-archive.com/cin@lists.cinelerra-gg.org/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)?
=========
> 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)
=========
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)
=========
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 at 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
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