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Thread: Tivoserver alpha-release thread

  1. #256
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    Jul 2004
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    594
    Look at the names bud.. Dvdshrink reduces size..Does DVD Decrypter do this I don't think so...

  2. #257
    Join Date
    May 2005
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    29
    Drez- thanks for the info on DVDDecrypter. I never bothered to look for the other modes just because I already had DVDShrink and knew it could do the job. I'll start using this method - I'm a fan of one-and-done processes. :-)

    Darrin75 - not sure if you were replying to me or Drez. I know that DVDShrink can reduce the size. I have it set to "no compression" so I don't lose any quality.

    Perhaps the VOB ripping process was obvious to everyone else, but most of the posts referenced AutoGK for ripping to AVI, etc. I just wanted to pull the main movie as a raw VOB file. I just wanted to share with the forum my process as it seems to be working well. Perhaps some lost soul will find it useful. :-) Everyone keep up the good work. I'll be happy to keep testing tivoserver with my VOBs.

  3. #258
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    Jul 2004
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    594
    i was replying to drez, but dvdshrink has some settings, deep analysis that can be applied, even though it takes longer to encode does a awesome job. I can reduce a main movie down to about 3.2g without any notice in dvdshrink...

  4. #259
    Join Date
    May 2005
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    29
    i was replying to drez, but dvdshrink has some settings, deep analysis that can be applied, even though it takes longer to encode does a awesome job. I can reduce a main movie down to about 3.2g without any notice in dvdshrink...
    Good to know. I'll have to try messing with the settings to see if I notice any loss in quality.

  5. #260
    Join Date
    Dec 2005
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    296
    Quote Originally Posted by darrin75
    Look at the names bud.. Dvdshrink reduces size..Does DVD Decrypter do this I don't think so...

    I had figured you were only using DVD Shrink to reauthor into one big vob.

    Quote Originally Posted by mk1277
    ...
    Up to this point, I had been simply using DVD Shrink to reauthor the main title to the hard drive as one big VOB. ...

  6. #261
    Join Date
    Dec 2005
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    296
    Quote Originally Posted by mk1277
    Drez- thanks for the info on DVDDecrypter. I never bothered to look for the other modes just because I already had DVDShrink and knew it could do the job. I'll start using this method - I'm a fan of one-and-done processes. :-)
    np,

    i forgot to mention you have to change this setting in dvd decrypter



    you only have to set that once.

  7. #262
    Join Date
    Aug 2004
    Posts
    75
    Folks-
    DVDshrink will of course eliminate bad durations, since it re-encodes the entire video, thus eliminating the mpeg editing discontinuities that CAUSE the bad durations.

    Other solutions have already been mentioned, such as running mpg/vobs through mpeg-vcr GOP corrector. Unfortunately we were never able to add code to search for timestamp discontinuities within tivoserver.

  8. #263
    Join Date
    May 2005
    Posts
    29
    Originally Posted by drez
    i forgot to mention you have to change this setting in dvd decrypter. . .
    Thanks, I figured that out after the first run. Knew there had to be a setting somewhere.

    Originally Posted by starmanj
    Other solutions have already been mentioned, such as running mpg/vobs through mpeg-vcr GOP corrector. Unfortunately we were never able to add code to search for timestamp discontinuities within tivoserver.
    Thanks for the info. I seem to have a working process here with a higher success rate than I previously had. Just as long as the tivoserver code continues to improve VOB support, I'll be happy.

  9. #264
    Join Date
    Aug 2001
    Location
    Raleigh, NC
    Posts
    349
    I get incorrect durations and negative bitrates even after using DVDShrink. Maybe it's because I use no compression in DVDShrink.
    -- gfb107

  10. #265
    Join Date
    May 2005
    Posts
    29
    Originally posted by gfb107
    I get incorrect durations and negative bitrates even after using DVDShrink. Maybe it's because I use no compression in DVDShrink.
    The no compression setting shouldn't matter. I've used it on all my DVDs and only a couple have come back with a negative bitrate.

  11. #266
    Join Date
    May 2005
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    913
    Turns out that the ffmpeg CVS that is used in -a3 and -a4 is MUCH slower than that used in -a2. Not sure if it's a bug or what. I've relinked the current tivoserver to the ffmpeg from -a2.

    I'm leaving on vacation in a few hours, so I don't have time to make a proper release, but for those who want, I'm hosting -a4.2... here's a link:
    http://tuckscandy.com/share/tivoserv....2(cygwin).rar

    p.s. not sure, but may require a newer cygwin1.dll
    Last edited by BTUxNine; 06-17-2006 at 09:34 AM.

  12. #267
    Join Date
    Dec 2004
    Posts
    73
    That works just great...no slow down at all on the transcode, no pause when streaming and watching...excellent!!!

    Anything that gives my wife one less thing to bitch about is a great thing!
    Many thanks!

  13. #268
    Join Date
    Jul 2003
    Posts
    32

    A4.2 & Vobs?

    Callindril,

    Have you had any problems with this new binary and transfering VOBS? A4 & A3 work just fine for me but A4.2 seems crash on trying to transfer VOBS (at least on my machine).

    Also - what kind of throughput are you getting on transcode? What type of codec (XviD?)?

    Flynmoose
    Last edited by flynmoose; 06-17-2006 at 07:16 PM.

  14. #269
    Join Date
    Dec 2004
    Posts
    73
    Have not played with VOBs at all...I rip em with DVD Shrink and convert em with AutoGK to XVids...

    If I get a chance, Ill see what it does with a VOB...

    As far as thruput, Im not sure...I know on a4 and a4.1, I would get horrible thruput, as the tivo would go into pause mode about every 10-15 seconds when trying to watch the stream....with a4.2, no issue with that at all...

  15. #270
    Join Date
    Jul 2003
    Posts
    32
    For a point of measure, I am getting the following performance with A4.2

    • Transfer a XviD movie - 0.4X realtime (150KB/S)
    • Transfer a TMF formerly extracted from my TIVO (720x420 w/AAC) - 3.0X+ (2800KB/S+)
    • Transfe a VOB (under A4) - 1.5X(~1000KB/S)

    This is an old K7-550Mhz machine that serves as my file server. Have been thinking about upgrading - Guess I just found my excuse (though it is probably cheaper to just buy hard drives and store movies as VOBS! )

    Just confirmed - A4.2 crashes when I try to transfer a VOB. Here is the tail of the log. This is a VOB that transfered just fine with A3 & A4.

    Code:
     -------->  Random Magic: '2078917053'NEW TRANSFER
    0x00016bb4
    0x00016bb2
    0x00000000
     Found Magic number: '2078917053'
    Found Show By ID: 0
    AVI2!
    	newh= 480, Padding= 0, ar= 1.33333, br= 6300
    AVI2 stats: 720x480, dur=38:51, BR=6300, Pixel-AR=0.89
    	nchunks: 14342, nparts: 9
    -- copying audio stream #1
    -- copying video stream #0
    Stream mapping:
      Stream #0.1 -> #0.0
      Stream #0.0 -> #1.0
    Could not write header for output file #0 (incorrect codec parameters ?)
    Closed Audio Buffer
    Closed Video Buffer
    FFMPEG FINISHED

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