Den 06.03.2023 21:30, skrev Andrew Randrianasulu:
пн, 6 мар. 2023 г., 23:00 Andrew Randrianasulu <randrianas...@gmail.com>:
пн, 6 мар. 2023 г., 22:51 Terje J. Hanssen <terjejhans...@gmail.com>:
Den 06.03.2023 15:02, skrev Andrew Randrianasulu:
I think you need another software like (q)dvdauthor or
dvdstyler to make DVD - they use *program* streams, not
transport streams as tsMuxer creates ...
I thought first to use mkisofs, but didnt really find out the
relevant syntax to make a video dvd iso from the ffmpeg
created dv28.mpg file with pcm audio.
Had a quick look in DVD styler, but for audio it seemed to
support only AC3 or MP2 audio.
I think because project still active you can look at their
support place and see if anyone made request for this already, or
if not - log your own.
https://sourceforge.net/p/dvdstyler/discussion/318795/thread/00ecc86f13/
=====
If you use Mplex for muxing then Mplex will abort with a message
that it cannot recognize the audio stream. This is an Mplex
issue. It is no problem for Mplex to mux an LPCM audio stream,
but the file must have the extension "lpcm". You can verify this
by renaming the audio file in the DVDStyler cache folder and give
it the "lpcm" extension. Then feed the video and this renamed
audio stream to Mplex for muxing, and you will get a perfect
MPEG2 file with PCM audio.
====
Also from mjpegtools mail list archive:
https://www.mail-archive.com/mjpeg-users@lists.sourceforge.net/msg06753.html
https://www.mail-archive.com/mjpeg-users@lists.sourceforge.net/msg06759.html
apparently you must use one big mpeg file in this case
=====
bn
<https://www.mail-archive.com/search?l=mjpeg-us...@lists.sourceforge.net&q=from:%22bn%22>
Fri, 05 May 2006 20:02:05 -0700
<https://www.mail-archive.com/search?l=mjpeg-us...@lists.sourceforge.net&q=date:20060505>
Well folks(?),
No responses but I appear to have made some headway, which I'll share
here in case someone's out there somewhere scratching their own head
over this.
The problem seems to have to do with dvdauthor's STC discontinuity at
the chapter points when it's fed one file per chapter; the initial
pts/dts values are reset, and this somehow throws things off during
playback, even if audio and video endpoints are perfectly aligned.
If the whole titleset is mplexed as one mpg and then dvdauthored with
chapter- point offsets, the gaps disappear. Also, if the chapter
points aren't aligned to GOP boundaries, dvdauthor will do it anyway
and shift them backwards.
Bahman
=====
I hope this workflow is not bitrotted. According to man page from
https://linux.die.net/man/1/mplex mplex accept lpcm params:
===
*L|--lpcm-params*
/samples_per_sec:channels:bits_per_sample/
[, /samples_per_sec:channels:bits_per_sample/ ...]
A comma-seperated list of paramter sets for the lpcm audio
streams (given in the order the lpcm streams appear on the
command line). Each parameter set comprises the sampling rate in
Hz, the number of channels, and the number of bits per sample
seperated by colons. For example, the default 48kHz two-channel
16-bit audio would be specified as 48000:2:16.
Note: these parameters are necessary because mplex expects raw LPCM
audio data without any headers. That is: for each sample point a
group of 16,20, or 24 bit amplitude values, one for each channel.
Amplitude values are signed with the constituent bytes in
big-endian (most significant bytes first) order. For 20 bit
samples I am not sure but what documentation I have suggests such
samples are padded at the lsb end so that they byte-align at the
most significant bits.
====
https://www.mail-archive.com/search?l=mjpeg-users%40lists.sourceforge.net&q=lpcm
<https://www.mail-archive.com/search?l=mjpeg-users%40lists.sourceforge.net&q=lpcm>
some more reading from 2005-6 era.
Not a direct respons, but I think I have come a step forward via a
five years old ffmpeg bug report:
https://trac.ffmpeg.org/ticket/6782
Doesn't produce MPEGPS-MPEG-2-LPCM compliant output (-target, -f
dvd, -f vob). Buffer underflow appear.
pcm_dvd added; mpegps -target removed
There is obviously a deticated "pcm_dvd" codec for ffmpeg,
correspondingly to the later "pcm_bluray".
So I verified this on my ffmpeg 5.1.2 built from Packman for
Tumbleweed and found:
ffmpeg -hide_banner -codecs | egrep "pcm_bluray|pcm_dvd"
DEAI.S pcm_bluray PCM signed 16|20|24-bit big-endian
for Blu-ray media
DEAI.S pcm_dvd PCM signed 20|24-bit big-endian
Transcoded input raw DV with PCM audio to MPEG-2 video pcm_dvd audio
in a VOB/MPG format:
ffmpeg -hide_banner -i dv01.dv -c:v mpeg2video -refs 1 -bf 2 -b:v
8M -maxrate 8M -minrate 8M -bufsize 20M -muxrate 11M -dc 10 -c:a
*pcm_dvd* -f vob -flags +ilme+ildct dv01.mpg
............ still a lot of
[vob @ 0x562a8c68f240] buffer underflow st=1 bufi=1392 size=2008
Last message repeated 6 times
[vob @ 0x562a8c68f240] buffer underflow st=1 bufi=1396 size=2008
frame=14912 fps=298 q=3.9 Lsize= 703652kB time=00:09:56.48
bitrate=9663.9kbits/s speed=11.9x
video:582644kB audio:112007kB subtitle:0kB other streams:0kB
global headers:0kB muxing overhead: 1.295818%
du -sh *.dv *.mpg
2,0G dv01.dv
688M dv01.mpg
Verified that the ffmpeg *dv01.mpg* output file contains *pcm_dvd*
ffprobe -hide_banner dv01.mpg
Input #0, mpeg, from 'dv01.mpg':
Duration: 00:09:56.48, start: 0.540000, bitrate: 9663 kb/s
Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv,
bottom first), 720x576 [SAR 16:15 DAR 4:3], 25 fps, 25 tbr, 90k tbn
Side data:
cpb: bitrate max/min/avg: 8000000/0/0 buffer size:
20004864 vbv_delay: N/A
Stream #0:1[0xa0]: Audio: *pcm_dvd*, 48000 Hz, stereo, s16,
1536 kb/s
The DVD structure and video files from DeVeDe is now being transcoded
from pcm_dvd to AC-3 audio:
tree ./dv01_tw_DVD -sh
[4.0K] ./dv01_tw_DVD
├── [500M] dv01_tw_DVD.iso
├── [4.0K] dvd_tree
│ ├── [4.0K] AUDIO_TS
│ └── [4.0K] VIDEO_TS
│ ├── [ 12K] VIDEO_TS.BUP
│ ├── [ 12K] VIDEO_TS.IFO
│ ├── [ 32K] VIDEO_TS.VOB
│ ├── [ 18K] VTS_01_0.BUP
│ ├── [ 18K] VTS_01_0.IFO
│ ├── [3.1M] VTS_01_0.VOB
│ ├── [ 32K] VTS_01_1.VOB
│ ├── [ 24K] VTS_02_0.BUP
│ ├── [ 24K] VTS_02_0.IFO
│ ├── [ 32K] VTS_02_0.VOB
│ └── [496M] VTS_02_1.VOB
├── [4.0K] menu
│ ├── [1.9K] menu_0_active_bg.png
│ ├── [ 61K] menu_0_bg.png
│ ├── [3.1M] menu_0B.mpg
│ ├── [3.1M] menu_0.mpg
│ ├── [1.9K] menu_0_selected_bg.png
│ ├── [1.7K] menu_0_unselected_bg.png
│ └── [ 451] menu_0.xml
├── [4.0K] movies
│ └── [496M] movie_0.mpg
└── [4.0K] xml_data
└── [1.7K] dvdauthor.xml
7 directories, 21 files
ffprobe -hide_banner dv01_tw_DVD/dvd_tree/VIDEO_TS/VTS_02_1.VOB
Input #0, mpeg, from 'dv01_tw_DVD/dvd_tree/VIDEO_TS/VTS_02_1.VOB':
Duration: 00:09:56.49, start: 0.534667, bitrate: 6970 kb/s
Stream #0:0[0x1bf]: Data: dvd_nav_packet
Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv,
progressive), 720x576 [SAR 16:15 DAR 4:3], 25 fps, 25 tbr, 90k tbn
Side data:
cpb: bitrate max/min/avg: 7500000/0/0 buffer size:
1835008 vbv_delay: N/A
Stream #0:2[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 224 kb/s
ffprobe -hide_banner dv01_tw_DVD/movies/movie_0.mpg
[mpeg @ 0x555ff4407ec0] start time for stream 0 is not set in
estimate_timings_from_pts
Input #0, mpeg, from 'movie_0.mpg':
Duration: 00:09:56.49, start: 0.534667, bitrate: 6970 kb/s
Stream #0:0[0x1bf]: Data: dvd_nav_packet
Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv,
progressive), 720x576 [SAR 16:15 DAR 4:3], 25 fps, 25 tbr, 90k tbn
Side data:
cpb: bitrate max/min/avg: 7500000/0/0 buffer size:
1835008 vbv_delay: N/A
Stream #0:2[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 224 kb/s
Unsupported codec with id 98312 for input stream 0
I looks like DeVeDeNG version 4.17 possibly doesn't support pcm_dvd
yet. To get this clarified I have written to the author to try to get
this clarified.
My first impression of this program is that I got taste for its
simplicity and straight forward use, yet relative comprehensive behind
the buttons.
https://gitlab.com/rastersoft/devedeng
https://www.rastersoft.com/programas/devede.html
https://www.xmodulo.com/create-video-dvd-linux-desktop.html
Documentation for the legacy DeVeDe 3.9 version
https://www.rafalinux.com/?page_id=248
