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Re: [dvd::rip] Using mplayer -dumpstream instead of tccat?

Subject: Re: [dvd::rip] Using mplayer -dumpstream instead of tccat?
From: "Allan N. Snider" <allansnider@xxxxxxxxx>
Date: Tue, 31 Jan 2006 08:24:03 -0500
Jörn:
    Both mplayer and tccat appear to be using the identical libdvdread (media-libs/libdvdread-0.9.4-r1).
                                                                                     Allan


Jörn Reder wrote:
"Allan N. Snider" wrote:

  
    I'm surprised nobody else has complained about this.  Frequently 
now, with newer DVD titles, I have to resort to mplayer to do the actual 
rip.  I just figured everybody else is running into the same problem and 
am patiently awaiting the next release that fixes the problem.  When the 
problem does occur, I usually have to skip the first 100 or so 2kB 
records for dvdrip to function properly, such as frame grabbing, 
transcoding frame ranges, and what not.  I run a script similar to this:

mplayer dvd://1 -dumpstream
dd if=stream.dump bs=2048 skip=100 | dvdrip-splitpipe -f 
/dvd/db/dvd/tmp/dvd-001-nav.log 1024 /dvd/db/dvd/vob/014/dvd vob >& 
/dev/null
    

Ok, looks you just replaced the "tccat..." by mplayer, looks Ok to me.

  
    This populates the vob directory, and I continue using dvdrip from 
there.  However, since I have started using v0.97.5, the subtitles are 
part of the rip process, and they have eliminated the "grab" button, so 
I can't rebuild them on the fly.  I haven't needed subtitles yet, but 
will have to look into it at some point.
    

Should be no big deal as well, since the subtitle extraction stuff 
itself just works on the grabbed VOB stream, no matter which process 
generates it. I'll take a look at this soon.

  
    Again, very odd more people haven't seen this.  When the problem 
occurs, dvdrip usually hangs (because I'm waiting on DVD read retries), 
and the system reports errors of the type:

end_request: I/O error, dev hdc, sector 2689952
Buffer I/O error on device hdc, logical block 336244
hdc: media error (bad sector): status=0x51 { DriveReady SeekComplete Error }
hdc: media error (bad sector): error=0x34 { AbortedCommand 
LastFailedSense=0x03 }
ide: failed opcode was: unknown

    So, it's getting pretty lost.  Again, mplayer has no problems.
    

Hmm. Can you check whether mplayer and tccat use the same version of 
libdvdread? I'm somewhat surprised about the differences between mplayer
and tccat since they should both just use libdvdread for the low-level 
stuff.

Anyway. Providing an alternative mplayer ripping backend should be 
doable, resp. if it has no disadvantages over tccat this could be the 
default ripping mode for future releases.

Thanks for your input and stay tuned... ;)

Regards,

Joern

  
 

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