Results 1 to 2 of 2

Thread: TY/TMF chunk offset change?

  1. #1
    Join Date
    Oct 2004
    Location
    Texas
    Posts
    135

    TY/TMF chunk offset change?

    I'm posting this in the dev forum 'cause I'm not really sure if it's an mfs_ftp issue or a new Tivo development. If it turns out to be a "support request", I'll be glad to move it

    Recently (this week) I've had odd results with the TY/TMF files downloaded with mfs_ftp. The first non-master chunk seems to start in the wrong place. It was my understanding that the chunks were always 0x20000 bytes long; or at least always that long as long as the header chunk said so, and it does:

    00000000 f5 46 7a bd 00 00 00 02 00 02 00 00 00 00 8e 04 |.Fz.............|

    But recently, the next chunk seems to be starting at 0x0001fff8. At first I thought it was just completely different, then I tried putting a TMF back on the Tivo (w/ tivoserver) and then downloading it again. Here are the results:

    Original
    *
    00020000 66 00 2a 80 86 82 0e 01 00 00 00 00 00 00 00 00 |f.*.............|
    00020010 00 00 00 00 8f 2e 5e 01 00 00 00 00 00 00 00 00 |......^.........|

    Inserted Then Downloaded Again
    *
    0001fff0 00 00 00 00 00 00 00 00 00 66 00 2a 80 86 82 0e |.........f.*....|
    00020000 01 00 00 00 00 00 00 00 00 00 00 00 00 8f 2e 5e |...............^|

    I was just beginning to sort-of understand the TY structure (adding TY support to tivoserver) when this hit. Is there really something wrong here, or am I misunderstanding something?


    EDIT

    So after hours of debugging, I realized that this was all b/c of not setting binary mode before downloading
    Last edited by wsewell; 08-12-2005 at 12:26 AM.

  2. #2
    Join Date
    Mar 2002
    Posts
    1,339
    Quote Originally Posted by wsewell
    EDIT

    So after hours of debugging, I realized that this was all b/c of not setting binary mode before downloading
    ouch, that has bit me in the butt a few times...

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •