[MPlayer-users] Create an AVI with DD5.1 out of a DVD ?

[Tilo Renkl]

> > Got another strange output when replaying a dvd with:
> > 
> > mplayer dvd://1 -ac hwac3 -aid 128
> > 
> > -------------snip-------------
> > 
> > a52: CRC check failed!  0.792 ct: -0.106   28/ 28   0% 12%  
> 0.3% 0 0 0%
> > a52: CRC check failed!  0.884 ct: -0.106   29/ 29   0% 12%  
> 0.3% 0 0 0%
> > a52: CRC check failed!  0.880 ct: -0.110   29/ 29   0% 12%  
> 0.3% 0 0 0%
> > hwac3: switched to DTS, 768000 bps, 48000 Hz1/ 31   0% 12%  
> 0.3% 0 0 0%
> > hwac3: switched to AC3, 448000 bps, 48000 Hz
> > a52: CRC check failed!  
> > hwac3: switched to DTS, 768000 bps, 48000 Hz1/ 31   0% 12%  
> 0.3% 0 0 0%
> > hwac3: switched to AC3, 448000 bps, 48000 Hz
> > a52: CRC check failed!  
> > hwac3: switched to DTS, 768000 bps, 48000 Hz3/ 33   0% 12%  
> 0.3% 0 0 0%
> > hwac3: switched to AC3, 192000 bps, 48000 Hz
> > a52: CRC check failed!  0.956 ct: -0.130   34/ 34   0% 12%  
> 0.3% 0 0 0%
> > a52: CRC check failed!  0.996 ct: -0.134   35/ 35   0% 13%  
> 0.3% 0 0 0%
> > a52: CRC check failed!  1.128 ct: -0.138   37/ 37   0% 13%  
> 0.3% 0 0 0%
> > a52: CRC check failed!  1.156 ct: -0.146   39/ 39   0% 13%  
> 0.3% 0 0 0%
> > 
> > -------------snap-----------------
> > 
> > Maybe that's why that encoding fails ?! But what does that mean ?
> > And more important: How can I get rid of that ?
> > 
> > Tilo
> > 
> 
> The CRC check messages mean mplayer can't read the AC3 data properly
> from the DVD - usually an indication of a dirty/scratched disk, though
> in cases where it's really bad the video gets messed up too so I'm not
> sure if that's the problem you have. Try cleaning the surface of the
> DVD carefully and see if you can get any better results.
> 
> I think the messages from hwac3 indicate that it's getting unexpected
> (seriously messed up) data, and switching to DTS mode until the AC3
> stream returns to a recognizable state. That's just my guess, though.
> 
>  >
>  > ps.: When playing the encoded movie with "mplayer movie.avi",
>  > so that mplayer transcodes the ac3 to pcm the sound is also
>  > destroyed.
>  >
> 
> That supports my idea that your disk is dirty; however, you should be
> able to reproduce the same "destroyed" effect by simply 
> playing the DVD,
> if that is the case. What happens if you do so?
> 

Happens with all DVD's. All DVD's play absulutely correct in my DVD-Player.

Is it possible that I have a messedup libdvdread, or libdvdnav, liba52 ??

Tilo