[Cin] Testing HDV on a Blu-ray Disc Without Re-encoding

[Terje J. Hanssen]

Den 24.11.2021 21:37, skrev Andrew Randrianasulu:
>
>
> On Wednesday, November 24, 2021, Terje J. Hanssen 
> <terjejhanssen at gmail.com <mailto:terjejhanssen at gmail.com>> wrote:
>
>     Finally preparing the source HDV.M2T MPEG-2 media in a blu-ray
>     M2TS format format with E-AC3 audio.
>
>
>     ffmpeg -i 20081103140154.m2t -c:a eac3 -c:v copy
>     20081103140154_m2t-eac3.m2ts
>
>     ffmpeg -i 20081103140154_m2t-eac3.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: eac3 (EAC3 / 0x33434145), 48000 Hz,
>     stereo, fltp, 192 kb/s
>
>     ===============
>
>     Trying to follow the manual's 7 procedure steps to create the
>     Blu-ray structure and burn it to a DVD+RW disc (with root access):
>     # My comments and questions included.
>
>
>     1. du -sb /yourHDVfile.MTS
>
>     cd /video/HDV-M2T
>
>     du -sb 20081103140154_m2t-eac3.m2ts
>     44261376    20081103140154_m2t-eac3.m2ts
>
>     ----------
>
>     2. blocks=((size-in-bytes/2048 + 4096))
>
>     blocks=((44261376/2042 + 4096)) = 25700
>
>     ----------
>
>     3. mkudffs /tmp/newfilename.udfs blocks
>
>     zypper in udftools
>
>     mkudffs /tmp/BD_HDV_20081103140154_m2t-eac3_m2ts.udfs 25700
>
>     filename=/tmp/BD_HDV_20081103140154_m2t-eac3_m2ts.udfs
>     label=LinuxUDF
>     uuid=619e6f69a6e71b03
>     blocksize=2048
>     blocks=25700
>     udfrev=201
>     start=0, blocks=16, type=RESERVED
>     start=16, blocks=3, type=VRS
>     start=19, blocks=237, type=USPACE
>     start=256, blocks=1, type=ANCHOR
>     start=257, blocks=16, type=PVDS
>     start=273, blocks=1, type=LVID
>     start=274, blocks=25169, type=PSPACE
>     start=25443, blocks=1, type=ANCHOR
>     start=25444, blocks=239, type=USPACE
>     start=25683, blocks=16, type=RVDS
>     start=25699, blocks=1, type=ANCHOR
>
>     -------------
>
>     4. mount -o loop /tmp/newfilename.udfs /mntX
>
>     mkdir /mntX
>
>     mount -o loop /tmp/BD_HDV_20081103140154_m2t-eac3_m2ts.udfs /mntX
>
>     -----------
>
>     5. /<cinelerra_installed_path>/bin/bdwrite /mntX /tmp/yourHDVfile.MTS
>
>     which bdwrite
>     /usr/bin/bdwrite
>
>     bdwrite /mntX /tmp/20081103140154_m2t-eac3.m2ts
>     cant scan media: /tmp/20081103140154_m2t-eac3.m2ts
>
>     # Something wrong here with the procedure or my command syntax? "
>     # I'm confused regarding "/mntX /tmp/yourHDVfile.MTS": my HDV.M2TS
>     file is in the current /video/HDV-M2T ?
>
>
> yeah, sounds like unclear manual assuming your video file also in 
> /tmp, try same steps but with next line you tried first (or delete 
> already written  stuff from /mntX before next try)
>
>

Just to add, I have several DVD and BD discs with video written earlier 
using various tools, CinGG/bdwrite, K3b and NeroLinux, but probably none 
using just this procedure for HDV:

I repeat and continue from step using a blank DVD+RW disc:

bdwrite /mntX 20081103140154_m2t-eac3.m2ts

tree -h /mntX
/mntX
├── [ 520]  BDMV
│   ├── [  40]  AUXDATA
│   ├── [ 332]  BACKUP
│   │   ├── [  40]  BDJO
│   │   ├── [  92]  CLIPINF
│   │   │   └── [ 480]  00000.clpi
│   │   ├── [  40]  JAR
│   │   ├── [ 110]  MovieObject.bdmv
│   │   ├── [  92]  PLAYLIST
│   │   │   └── [ 184]  00000.mpls
│   │   └── [ 124]  index.bdmv
│   ├── [  40]  BDJO
│   ├── [  92]  CLIPINF
│   │   └── [ 480]  00000.clpi
│   ├── [  40]  JAR
│   ├── [  40]  META
│   ├── [ 110]  MovieObject.bdmv
│   ├── [  92]  PLAYLIST
│   │   └── [ 184]  00000.mpls
│   ├── [  92]  STREAM
│   │   └── [ 42M]  00000.m2ts
│   └── [ 124]  index.bdmv
└── [ 272]  CERTIFICATE
     ├── [ 224]  BACKUP
     │   ├── [  40]  BDJO
     │   ├── [  40]  CLIPINF
     │   ├── [  40]  JAR
     │   └── [  40]  PLAYLIST
     ├── [  40]  BDJO
     ├── [  40]  CLIPINF
     ├── [  40]  JAR
     └── [  40]  PLAYLIST

23 directories, 9 files

umount /mntX

dd if=/tmp/BD_HDV_20081103140154_m2t-eac3_m2ts.udfs of=/dev/sr0 bs=2048000
dd: error writing '/dev/sr0': No space left on device
1+0 records in
0+0 records out
2048 bytes (2.0 kB, 2.0 KiB) copied, 0.0797526 s, 25.7 kB/s

# dd: error writing '/dev/sr0': No space left on device
# Is there  something in the dd command that prerequisite a BD size 
disc: bs=2048000
# If so, what should it be for a 4.7 GB DVD+RW?

# Is it possible to blank out the empty structures written to DVD+RW, in 
case it require a blank disc?

Terje J. H




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