On Sun, Nov 02, 2008 at 10:41:02PM +0100, Martina wrote:
> Hallo there. 
> 
> Here is the promised command line. 
> I use it for grabbing my DVD's into the computer. 
> i hope this message does go to all of the users. If not, i'm afraid I don't 
> know how to do it. 
> 
> # transcode -x dvd -i /dev/dvd -T1,-1 -j 0,8,0,8 -a 1 -M 0 -A --export_par 3 
> -y ffmpeg,raw -F mpeg4,ac3 -N 0x2000 -o ~/dvd.avi 
> 
> or 
> 
> # transcode -x dvd -i /dev/dvd -T1,-1 -a 1 -A --export_par 4 -y ffmpeg,raw -F 
> mpeg4,ac3 -N 0x2000 -o ~/dvd.avi 

Thanks for above.

At a glance, yours and my commands look somewhat similar, although with some 
possibly significant differences.

What catches my attention the most in the above is the "-A" option.  My own 
command works without the "-A", but fails *with* the "-A" option, producing the 
error message: " critical: Oops, this version of transcode only supports PCM 
data for audio transformation"

(And since the man pages state that "-A" means "use AC3 as internal audio 
codec", I am assuming this option is a must for my objective)

I have looked in the source ./configure file, but did not identify anything 
option/flag that looks like it will turn on "AC3 as internal audio codec". If 
anyone knows how to compile transcode with the option turned on, please help!

> You surely will figure out what parameter is for what and discard all which 
> are no use. (I'd have to think too much about it and that hurts at this hour 
> ;) ) 

I will tinker with it when i get the chance, asap.
I will also look into the solution offered by Maik Holtkamp (combination of 
transcode and mencoder)

> I think it works, but it could be "placebo" effect as well :). 
> By the way what do you use for watching movies with 5+1 sound? 

I have used both Xine and mplayer thus far, to hear what seemed to be the 
correct 5.1 separation.

(mplayer, i believe, needs the explicit "-channels 6" option, particularly for 
AC3. mp3surround may be a different story. I think it gets complicated here. I 
physically connected (just!) my rear analog to a surround sound amp's dvd-in, 
and all of the 5.1 channels seemed to be there, separately, in each speaker. 
Playing through mplayer, IIRC. I was mystified (but gratified))

>I managed only in XINE but it has centre/bass and Lrear/Rrear channels swapped 
>somehow... 

Fascinating. I have not noticed any such problem. I'll listen for the swap next 
time, to be sure. Although, i assume, the problem should be VERY obvious? 
(Little or no bass, distortion from the center speaker?)

( My xine is: xine-ui-0.99.5 and xine-lib-1.1.8 -- both locally compiled )

andrew


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