[MEncoder-users] Extracting DVD-audio?

[Jay W. Summet]

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I used vobcopy and only got 4 VOB's (around 6gb) which appeared to have
all of the (TV) episodes in them, but none of the special features, FBI
warning, menu videos, etc. I also didn't see/hear any of the audio
program, so I don't think it was included in the VOB's. (each VOB has
mpeg2 video, a52 audio (2 channels, english and spanish).

I found a workaround (not involving mencoder) that I'm going to use. I
play the dvd using xine, and use audacity to record from my "vol" or
soundcard directly. This has the obvious downsides that it only works in
realtime, can't be easily automated, and prevents me from doing anything
else that uses audio at the same time, but it is easy to get to work,
and for 20 odd disks won't be too bad.

Jay



Hassel, Scott wrote:
| Well Jay, I'm thinking it may be title 9. The identify shows
| "ID_DVD_TITLE_9_CHAPTERS=52". 52 chapters is a substantial amount of
| chapters and I doubt if any of the episodes would require that many.
| Even if they put them all together and chapter skipped between them
| which based on your tests is not the case as you can access the episodes
| as titles 1-8. You have eliminated 1-8 and 10-18 as I doubt the episodes
| or extras are the correct length to match with the radio show. This
| leaves 9,19,20,21. Titles 19,20,21 are all 1/2 second in length based on
| the identify (ID_DVD_TITLE_20_LENGTH=0.500). This leaves title 9 which
| is 2 hrs. 39 mins. long, a substantial amount of data for no output to
| be produced.
|
| Which leaves your problem. Mplayer gets "stuck" as soon as you try to
| have mplayer access title 9. This would seem to indicate that title 9 is
| defined as a menu structure. My suspicion is that either a DVD player or
| xine is accessing the menu and playing the audio track by continuously
| looping through the menu video while decoding the audio. This might
| elicit the situation you are experiencing. My suggestion would be to use
| "vobcopy" to copy the raw vob's to your HD. You can then point mplayer
| at the individual vob's one at a time. With a little detective work
| utilizing -identify, persistence, and luck you should be able to figure
| out which vob file the audio is stored in. Then utilizing my second
| example ,substituting the filename for the DVD, you should be able to
| dump the audio out to a wav file.
|
| If you would like further collaboration in this, please let me know.
|
| -----Original Message-----
| From: Jay Summet [mailto:jay at summet.com]
| Sent: Wednesday, May 03, 2006 4:17 PM
| To: Hassel, Scott
| Cc: MEncoder usage discussions
| Subject: Re: [MEncoder-users] Extracting DVD-audio?
|
| I think my biggest problem is finding the right "track number".
| Attached to this email is the text output from the -identify command.
|
| I'm trying to find the right "track" for the audio of the "I Love Lucy"
| radio
| show on the DVD.  When I play it in Xine, no "movie" shows (it appears
| to stay
| in the menu system).
| It may be stored in 4 parts, as the menu system allows me to select the
| first
| half, the comercials in the middle, and the 2nd half, and then the show
| closing.
|
| Here are my results when I try "mplayer dvd://#"
|
| 1-8 - plays various episodes of I love lucy
| 9 - gets stuck right after "DVD successfully opened", have it hit Ctl-C,
| MPlayer
| interrupted by signal 2 in module: demux_open
|
| 10,11,12,13,14,15,16,17,18- sections of bonus material, intros, etc
|
| 19,20,21 - Black screen, then exits. Tried -vo null, no difference.
| Thanks for any help.
|
| Jay
|
| Hassel, Scott wrote:
|
|>>I'm wondering if your terminology (DVD-audio) isn't confusing people
|
| as
|
|>>this SHOULD be simple.
|>>
|>>As this is nothing more than a regular DVD and the AUDIO_TS directory
|
| is
|
|>>empty then the audio is probably stored as audio attached to a video
|>>piece on the DVD ( all this is supposition as I don't have the "I Love
|>>Lucy" DVD).
|>>
|>>Anyway, if you could, I would you suggest that you run:
|>>
|>>mplayer dvd://1 -frames 0 -identify
|>>
|>>If you post it here maybe we can help with selecting the right
|>>audio/video track. Once you have selected the correct information
|>>audio/video track you can use a command similar to this to extract to
|
| a
|
|>>wav file if you wish.
|>>
|>>mplayer dvd://# -aid # -vo null -ao pcm:file="filename"
|>>
|>>-aid selects the audio track you want to listen to and will be listed
|
| by
|
|>>the previous command. Default audio on most DVD titles is 128 and is
|>>usually increased by 1 for each alternate track (129,130,etc.). Please
|>>remember that you can have different audio sets for each dvd://#.
|>>-vo null does exactly what it sounds like "no video out"
|>>-ao tells mplayer to decode audio as straight pcm (wav file format)
|
| and
|
|>>save to file "filename"
|>>
|>>Well, I hope this helps.
|>>
|>>-----Original Message-----
|>>From: mencoder-users-bounces at mplayerhq.hu
|>>[mailto:mencoder-users-bounces at mplayerhq.hu] On Behalf Of Jay Summet
|>>Sent: Saturday, April 29, 2006 2:16 PM
|>>To: mencoder-users at mplayerhq.hu
|>>Subject: [MEncoder-users] Extracting DVD-audio?
|>>
|>>I have a friend who has a lot of "I Love Lucy" DVD's, which each have
|
| a
|
|>>DVD
|>>audio track of the I Love Lucy radio show on them.  I can play the
|
| radio
|
|>>show on
|>>my DVD player, and by using xine and navigating through the menu's,
|
| but
|
|>>I can't
|>>figure out how to play the audio using mplayer (or extract it to an
|
| MP3
|
|>>via
|>>mencoder).
|>>
|>>Can somebody give me an example command line to play DVD-audio on
|
| DVD's?
|
|>>(and
|>>explain to me how to find the audio in the first place? e.g. figure
|
| out
|
|>>what
|>>number to use to extract the audio?)
|>>
|>>
|>>I've tried things like "dvd://#" with lots of different numbers, but
|>>that just
|>>shows the videos on the DVD's.
|>>
|>>Thanks,
|>>Jay
|
|
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Blue Cross Blue Shield of Florida, Inc., and its subsidiary and
affiliate companies are not responsible for errors or omissions in this
e-mail message. Any personal comments made in this e-mail do not reflect
the views of Blue Cross Blue Shield of Florida, Inc.  The information
contained in this document may be confidential and intended solely for
the use of the individual or entity to whom it is addressed.  This
document may contain material that is privileged or protected from
disclosure under applicable law.  If you are not the intended recipient
or the individual responsible for delivering to the intended recipient,
please (1) be advised that any use, dissemination, forwarding, or
copying of this document IS STRICTLY PROHIBITED; and (2) notify sender
immediately by telephone and destroy the document. THANK YOU.


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