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New program for 1 step TTG downloads, decryption, encoding - kmttg

Discussion in 'TiVo Home Media Features & TiVoToGo' started by moyekj, Mar 15, 2008.

  1. Apr 4, 2010 #2121 of 10413
    moyekj

    moyekj Well-Known Member

    11,148
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    Mission...
    Since you are using this with a Premiere unit note that TiVo Desktop currently pulls the shows in mpeg2 Program Stream (PS) format only while for kmttg v0p7j it pulls them in mpeg2 Transport Stream (TS) format by default. So most likely if you change kmttg setting to pull in PS format instead the same pulls that worked with TiVo Desktop should also work with kmttg. Sounds like perhaps there are still some bugs with pulling in TS format? To use PS format in kmttg:
    File->Configure...
    Program Options tab
    Disable "Download TiVo files in Transport Stream format"
    OK

    Let us know if that indeed is the problem as that would be an interesting tidbit and possibly another bug with Premiere units.
     
  2. Apr 4, 2010 #2122 of 10413
    bkdtv

    bkdtv New Member

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    DC Metro Area
    I have noticed that pulling in TS seems more sensitive to program stream errors. If there are a lot of errors in the stream, MPEG-PS may work while the faster MPEG-TS does not.

    Oddly, this seems to be an issue with the latest software. I have a few "bad" recordings that downloaded fine in TS format under 14.0, but all I get are partial downloads in TS format under 14.1. They download fine in PS format.
     
  3. Apr 4, 2010 #2123 of 10413
    orangeboy

    orangeboy yes, I AM orangeboy!

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    East Moline, IL
    Same experience here, too. Running a TS format through the kmttg processes (including push) results in macro-blocking and skips every few seconds for me.
     
  4. Apr 4, 2010 #2124 of 10413
    bkdtv

    bkdtv New Member

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    With the same TS recording as a source, I find that recordings decrypted (+QSfix) with VideoRedo fare much better than those with tivodecode.
     
  5. Apr 4, 2010 #2125 of 10413
    videojanitor

    videojanitor New Member

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    It seems you have correctly diagnosed this. The troubled shows transferred fine in PS mode. Of course it's slower, but at least that's a good workaround.
     
  6. Apr 4, 2010 #2126 of 10413
    SoBayJake

    SoBayJake New Member

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    Feb 6, 2002
    Los Angeles, CA
    I saw others were having pixelation problems with TS files. I was too, and a reboot of the TiVo corrected it. tivodecode was happy with the new files, no more pixelation. I don't know how long it will last.

    I think there's a gremlin in the TiVo code related to pulling things off the box. When it encrypts the TS, I think something goes awry.
     
  7. Apr 4, 2010 #2127 of 10413
    moyekj

    moyekj Well-Known Member

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    Jan 23, 2006
    Mission...
    Good feedback. Sounds like it's more reliable to keep in PS mode for now. Perhaps that's why TiVo hasn't bothered to update TiVo Desktop yet to support TS mode (even though obviously the TiVoDirectShowFilter dll does support TS).
     
  8. Apr 5, 2010 #2128 of 10413
    VideoGrabber

    VideoGrabber New Member

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    Sep 11, 2003
    Well, my experiences have been aggravating, and rather different than those reported here. Using a Premiere with v14.1a, along with kmttg-v0p7j.

    1) Anything I download in PS mode can be loaded and played fine in VRD. However, if it's something I MRV'd over from my S3 because it always truncates there, it truncates in the same spot on the Primo, in PS mode. So no improvement on that front.

    2) When I turn on TS mode for the download in kmttg, NOTHING is playable in VRD. It's all broken up and scrambled (and no sound). So it's not decoding properly. That's in VRD-Beta596. The earlier versions of VRD won't play them at all... just sit there forever in a Busy state, until I manually kill them.

    3) If I use TS mode for the transfers, but click "Decrypt with tivodecode" (latest version that v0p7j grabbed), they then play "fine" in VRD (any version), but have sporadic bursts of black squares (on average every 3 seconds, though some files have both closer and farther spaced bursts... ~1-5 seconds).

    4) using TS mode, I do get the full transfer for the files MRV'ed over from the S3. So it seems to solve the truncation issue. But with the problems from (2) and (3), it's not doing me much good. :(

    It was my understanding (I read it somewhere... probably here) that VRD would have no problem with files transferred in TS mode. Maybe that changed between 14.0 and 14.1.

    Also, the speeds that bkdtv reported in his benchmarks were fully born out. PS mode downloads, normally averaging 20 MBit/s on my S3 (with both tuners disabled), were 40 MBit/sec on the Primo. And in TS mode, that went to 60 MBit/s on average, though there were extended periods where I got 70-75 MBit/s! Pretty impressive speeds. Now if it only worked.

    - Tim

    P.S. Maybe rather than referring to my Premiere as "Primo", I should be calling it "Preemie".
     
  9. Apr 5, 2010 #2129 of 10413
    VideoGrabber

    VideoGrabber New Member

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    That seems peculiar, since transport streams should be more fault tolerant, not less.

    - Tim
     
  10. Apr 5, 2010 #2130 of 10413
    moyekj

    moyekj Well-Known Member

    11,148
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    Jan 23, 2006
    Mission...
    Sounds like tivodecode is not decrypting all video frames for that case.

    I think it has been well established that TS mode can be very unreliable for both downloading and decrypting. TS decryption is better handled by TiVoDirectShowFilter (used by VideoRedo) than tivodecode, but both can have problems.

    Bottom line. If you have any problems then turn off TS download mode. Since PS downloads are still much faster than THD/S3 units I think that would be my choice for reliability reasons.
     
  11. Apr 5, 2010 #2131 of 10413
    VideoGrabber

    VideoGrabber New Member

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    Sep 11, 2003
    I can't argue with that. It's fairly obvious that the current build of tivodecode, enhanced to add TS support, has problems at boundaries, as you described in another thread. So it's almost there, but not quite. Makes sense.

    But what I'm not understanding at the moment is why VRD is having problems with the TS mode downloads? I was pretty sure one of the Dan's indicated they were working fine. The same .TiVo files that tivodecode can "almost" handle, aren't accepted by VRD at all (and VRD would be my first choice, due to QSF). They're all there, or tivodecode would be having worse problems. But maybe that's a question better suited to the VRD forums.

    However, MY bottom line is that without working TS mode (some way, some how), the Premiere hasn't helped me one bit getting the truncating TTG transfers resolved. So I'm right back where I started.

    I appreciate your comments, how smoothly kmttg works, and the blazing speeds that TS/TTG transfers run at. If only...
     
  12. Apr 5, 2010 #2132 of 10413
    SoBayJake

    SoBayJake New Member

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    Los Angeles, CA
    Sorry if I missed this, or it's covered elsewhere, but shouldn't I be able to send .TiVo files back to my TiVo?

    When I download a .TiVo file in TS format, it will not go back, not with pyTivoX nor StreamBaby. With pyTivox, it says "Transferring prohibited by the copyright holder," and with StreamBaby it says "Incompatible video type."

    When I download a .TiVo file in PS format, it will attempt to download from pyTivoX, but the blue transfer light comes on for about 1 second. The file is listed in My Shows/Now Playing, but is zero length, 0 size, and immediately asks if I want to delete the show. StreamBaby can stream the file back without issues.

    Am I crazy?
     
  13. Apr 5, 2010 #2133 of 10413
    bkdtv

    bkdtv New Member

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    I can't recall whether I had that problem in VRD 596. I don't have it in 599. Give that a try.

    You can't "push" .TiVo files. You can only "pull" them from the NPL on the TiVo.

    I believe the latest versions of pyTiVo (which may not be in pyTiVoX) incorporate TiVo decode to decode the .TiVo into MPG for push, provided you enter your MAK and location of tivodecode.exe in the pyTiVo.conf configuration file.
     
  14. Apr 5, 2010 #2134 of 10413
    stujac

    stujac Member

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    So, my computer crashed yesterday and I had to end up doing a factory reset so I've lost everything. Unfortunately, I "didn't believe" in backing up data. What an idiot. In any event I'm recreating all programs and I downloaded and upzipped the latest version but when it opened up there was the jar file but it wouldn't open. What did I miss? I've had every version of the kmttg software and always just updated when you had a new release.
     
  15. Apr 5, 2010 #2135 of 10413
    ellinj

    ellinj Seems Very Friendly TCF Club

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    RI
    Did you reinstall java?
     
  16. Apr 5, 2010 #2136 of 10413
    stujac

    stujac Member

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    I thought it was there when I did the factory reset. If not, how do I re-install Java? Also, I thought one of the unzipped programs would be an .exe file but it is a "jar" file.
     
  17. Apr 5, 2010 #2137 of 10413
    wmcbrine

    wmcbrine Ziphead

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    Aug 2, 2003
    VideoReDo works like DirectShowDump -- it depends on TiVo Desktop. Do you have TD 2.8 installed?
     
  18. Apr 5, 2010 #2138 of 10413
    wmcbrine

    wmcbrine Ziphead

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    You should. They're problematic, though.

    pyTivo doesn't understand transport stream .TiVo files yet. And, don't expect full support until tivodecode can handle them, without the errors documented above.

    I can't account for that one. Maybe if I saw the log? But we should take that to another thread (or forum).
     
  19. Apr 5, 2010 #2139 of 10413
    jbernardis

    jbernardis New Member

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    Oct 21, 2003
    Princeton NJ
  20. Apr 5, 2010 #2140 of 10413
    stujac

    stujac Member

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    Jan 26, 2002
    Thanks. Will do so when home from work. I still thought the zip folder would contain an .exe file.
     

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