A couple of problems with dvd::rip - Problems transcoding 6ch AC3
Brett Wyer <[email protected]> Sat, 14 Mar 2009 15:46:57 -0500
| Newsgroups | gmane.comp.video.dvdrip.user |
|---|---|
| Message-ID | <[email protected]> |
Thanks for building such a great tool!
Basically, I have tried transcoding two different DVD's with 6-channel
audio, with the end result being 2-channel no matter what I do. I've tried
a number of combinations of encoding schemes with no different results.
Here's the tcprobe info for my most recent attempt (The Matrix):
-bash-3.2# tcprobe -i /mnt
libdvdread: Using libdvdcss version 1.2.10 for DVD access
libdvdread: Attempting to use device /dev/loop0 mounted on /mnt for CSS
authentication
libdvdread: Using libdvdcss version 1.2.10 for DVD access
libdvdread: Attempting to use device /dev/loop0 mounted on /mnt for CSS
authentication
[dvd_reader.c] mpeg2 ntsc 16:9 only letterboxed U0 NTSC CC 1 720x480 video
[dvd_reader.c] ac3 en drc 48kHz 6Ch
[dvd_reader.c] ac3 en drc 48kHz 2Ch
[dvd_reader.c] ac3 en drc 48kHz 2Ch
[dvd_reader.c] DVD title 1/35: 38 chapter(s), 1 angle(s), title set 2
[dvd_reader.c] title playback time: 02:16:13.09 8174 sec
[tcprobe] DVD image/device
[tcprobe] summary for /mnt, (*) = not default, 0 = not detected
import frame size: -g 720x480 [720x576] (*)
aspect ratio: 16:9 (*)
frame rate: -f 23.976 [25.000] frc=1 (*)
audio track: -a 0 [0] -e 48000,16,2 [48000,16,2] -n 0x2000 [0x2000]
audio track: -a 1 [0] -e 48000,16,2 [48000,16,2] -n 0x2000 [0x2000]
audio track: -a 2 [0] -e 48000,16,2 [48000,16,2] -n 0x2000 [0x2000]
V: 195981 frames, 8174 sec @ 23.976 fps
A: 124.73 MB @ 128 kbps
USER CDSIZE: 650 MB | V: -124.7 MB @ -15999.9 kbps
USER CDSIZE: 700 MB | V: -124.7 MB @ -15999.9 kbps
USER CDSIZE: 1300 MB | V: -124.7 MB @ -15999.8 kbps
USER CDSIZE: 1400 MB | V: -124.7 MB @ -15999.8 kbps
As would be expected, the first audio channel is AC3, 6Ch.
Step-by-step, here's what I'm doing (the unencrypted ISO is mounted on
/mnt):
- I go to Rip Title and Read TOC
- I select title #1, audio track 1 (en ac3 48kHz 6Ch)
If I click on View Selected Title/Chapters, it seems a little wonky at this
point. When mplayer comes up, it reports the following:
Opening audio decoder: [liba52] AC3 decoding with liba52
Using SSE optimized IMDCT transform
Using MMX optimized resampler
AUDIO: 48000 Hz, 2 ch, s16le, 384.0 kbit/25.00% (ratio: 48000->192000)
Selected audio codec: [a52] afm: liba52 (AC3-liba52)
==========================================================================
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
This strikes me as odd - why would it be selecting 2ch, when this is a 6ch
track? I assume, though, because I'm in a default configuration, and this
machine doesn't have a sound card. Anyway, moving along:
- I rip selected titles/chapters and wait...
Here is where the first of my problems comes in. The rip process seems to
die in the middle - here is the log:
Sat Mar 14 09:51:57 2009 Start job 'Rip selected title(s) / chapter(s)'
Sat Mar 14 09:51:57 2009 Start job 'Process title #1'
Sat Mar 14 09:51:57 2009 Start job 'Rip - title #1'
Sat Mar 14 09:51:57 2009 Executing command: rm -f
/home/wyer/dvdrip-data/The_Matrix/vob/001//The_Matrix-???.vob && execflow -n
19 tccat -t dvd -T 1,-1,1 -i \/mnt | dvdrip-splitpipe -f
/home/wyer/dvdrip-data/The_Matrix/tmp/The_Matrix-001-nav.log 1024
/home/wyer/dvdrip-data/The_Matrix/vob/001//The_Matrix vob | tcextract -a 0
-x ac3 -t vob | tcdecode -x ac3 | tcscan -x pcm && echo EXECFLOW_OK
Sat Mar 14 09:52:45 2009 Rip - title #1: 10% done.
Sat Mar 14 09:53:36 2009 Rip - title #1: 20% done.
Sat Mar 14 09:54:34 2009 Rip - title #1: 30% done.
Sat Mar 14 09:55:27 2009 Rip - title #1: 40% done.
Sat Mar 14 09:56:29 2009 Rip - title #1: 50% done.
Sat Mar 14 09:57:43 2009 Rip - title #1: 60% done.
Sat Mar 14 09:58:59 2009 Rip - title #1: 70% done.
Sat Mar 14 10:00:11 2009 Executing command: execflow tcprobe -H 25 -i
/home/wyer/dvdrip-data/The_Matrix/vob/001/ && echo EXECFLOW_OK
Sat Mar 14 10:00:17 2009 Program stream units calculated
Sat Mar 14 10:00:17 2009 Enabled PSU core. Movie is NTSC and has more than
one PSU.
Sat Mar 14 10:00:17 2009 Job 'Process title #1' finished
Sat Mar 14 10:00:17 2009 Job 'Rip - title #1' finished
Not sure what's going on here, but it appears from the log that the rip
finished, even though the progress list only went to 70%. The only way to
proceed at this point is to exit dvd::rip. If I do so, the following error
is logged:
Gtk-CRITICAL **: gtk_text_layout_get_iter_location: assertion
`GTK_IS_TEXT_LAYOUT (layout)' failed at
/usr/local/lib/perl5/site_perl/5.10.0/Video/DVDRip/Logger.pm line 109.
I don't know if that has something to do with the rip process or not.
Moving along...
- I go to Clip and Zoom, grab a frame, and apply presets (autoadjust, big
frame, HQ)
- I skip subtitles, go to transcode and select AVI, ffmpeg with mpeg4 audio,
BPP by quality of .25, select track 1 (the 6ch track) and click the AC3 tab,
select use PSU core, then click transcode.
About an hour and 15 minutes later, I have an AVI file, which I check using
Mplayer, VLC Video player and my media server, and they all agree that there
are only 2 channels in the audio track.
I had similar results with Journey to the Center of the Earth. What's going
on here?
Below is the output from the Debug window. The man page for transcode says
that using the -A switch makes it use AC3 and passthru. That would seem to
imply that I would end up with a 6-channel AVI. What's going on here?
Probe Command:
==============
execflow tcprobe -H 10 -i /mnt -T 1 && echo EXECFLOW_OK; execflow dvdxchap
-t 1 /mnt 2>/dev/null
Rip Command:
============
rm -f /home/wyer/dvdrip-data/The_Matrix/vob/001//The_Matrix-???.vob &&
execflow -n 0 tccat -t dvd -T 1,-1,1 -i \/mnt | dvdrip-splitpipe -f
/home/wyer/dvdrip-data/The_Matrix/tmp/The_Matrix-001-nav.log 1024
/home/wyer/dvdrip-data/The_Matrix/vob/001//The_Matrix vob | tcextract -a 0
-x ac3 -t vob | tcdecode -x ac3 | tcscan -x pcm && echo EXECFLOW_OK
Grab Preview Image Command:
===========================
mkdir -m 0775 /home/wyer/dvdrip-data/The_Matrix/tmp/dvdrip27519.snap; cd
/home/wyer/dvdrip-data/The_Matrix/tmp/dvdrip27519.snap; execflow tccat -i
\/home\/wyer\/dvdrip\-data\/The_Matrix\/vob\/001\/ -t vob -S 1385619 -d 0 |
tcdemux -s 0x80 -x mpeg2 -S 9 -M 0 -d 0 -P /dev/null | tcextract -t vob -a 0
-x mpeg2 -d 0 | ffmpeg -r 29.970 -i - -an -r 1 -ss '0.367' -vframes 1
snapshot%03d.png && execflow convert -size 720x480
/home/wyer/dvdrip-data/The_Matrix/tmp/dvdrip27519.snap/snapshot*.png
/home/wyer/dvdrip-data/The_Matrix/tmp/The_Matrix-001-preview-orig.jpg &&
execflow convert -size 720x480
/home/wyer/dvdrip-data/The_Matrix/tmp/dvdrip27519.snap/snapshot*.png
gray:/home/wyer/dvdrip-data/The_Matrix/tmp/The_Matrix-001-preview-orig.raw
&& rm -r /home/wyer/dvdrip-data/The_Matrix/tmp/dvdrip27519.snap && echo
EXECFLOW_OK
Transcode Command:
==================
mkdir -m 0775 -p '/home/wyer/dvdrip-data/The_Matrix/tmp' && cd
/home/wyer/dvdrip-data/The_Matrix/tmp && mkdir -p
/home/wyer/dvdrip-data/The_Matrix/avi/001 && execflow -n 0 transcode -H 10
-a 0 -x vob -i \/home\/wyer\/dvdrip\-data\/The_Matrix\/vob\/001\/ -w 1841,50
-F mpeg4 -A -N 0x2000 -f 30,4 -M 2 -Y 56,0,56,0 -Z 768x432 -R 1 -y
ffmpeg,null -o /dev/null --progress_meter 2 --progress_rate 25 && echo
EXECFLOW_OK
mkdir -m 0775 -p '/home/wyer/dvdrip-data/The_Matrix/tmp' && cd
/home/wyer/dvdrip-data/The_Matrix/tmp && mkdir -p
/home/wyer/dvdrip-data/The_Matrix/avi/001 && execflow -n 0 transcode -H 10
-a 0 -x vob -i \/home\/wyer\/dvdrip\-data\/The_Matrix\/vob\/001\/ -w 1841,50
-F mpeg4 -A -N 0x2000 -f 30,4 -M 2 -Y 56,0,56,0 -Z 768x432 -R 2 -y ffmpeg -o
/home/wyer/dvdrip-data/The_Matrix/avi/001/The_Matrix-001.avi
--progress_meter 2 --progress_rate 25 && echo EXECFLOW_OK
View DVD Command:
=================
mplayer dvd://1 -aid 128 -chapter 1 -dvdangle 1 -dvd-device \/mnt
View Files Command:
===================
mplayer movie.avi
CD image creation command:
========================
No files for image creation selected.
CD burning command:
==================
No files for burning selected.
WAV creation command:
====================
mkdir -p /home/wyer/dvdrip-data/The_Matrix/avi/001 && execflow -n 0
transcode -a 0 --progress_meter 2 --progress_rate 200 -y null,wav -u 100 -o
/home/wyer/dvdrip-data/The_Matrix/avi/001/The_Matrix-001-00.wav -x null -i
\/home\/wyer\/dvdrip\-data\/The_Matrix\/vob\/001\/ && echo EXECFLOW_OK
Here are the versions of software I'm runnig:
Program Version
-------------------------------
dvd::rip 0.98.10
transcode 1.1.1
ImageMagick 6.4.0
ffmpeg SVN-r16671,
xvid4conf 1.12
subtitle2pgm not installed
lsdvd 0.16
rar 3.80
mplayer cvs
ogmtools not installed
dvdxchap not installed
mjpegtools 1.9.0
xine 0.99.5
fping 2.4
hal 0.5.12
-------------------------------
Linux-wise, I'm running a 64-bit instance of Fedora Core 10 -
2.6.27.5-117.fc10.x86_64.
Thanks,
Brett