Frame id carried into the AVI file

Discussion in 'Amateur Video Production' started by singerg, May 22, 2005.

  1. singerg

    singerg Guest

    Is the frame id (year,month, day, hour, minute, second, frame number)
    copied into the system when the video is captured? if so, how is it
    possible to view the information?
    I am using Ulead Media Studio 6.5

    Thanks
     
    singerg, May 22, 2005
    #1
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  2. Need more information than you provided to answer that question.
    What kind of device is the source? Camcorder? Tape format?
    What are you using to connect between the source and your
    computer? Firewire? Something else?
     
    Richard Crowley, May 23, 2005
    #2
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  3. If you are working with DV the hour-minute-frame is noted when you capture
    as it appears on the LCD screen. This does not remain the same when placed
    on the timeline. No matter what area you captured the video from on the tape
    (in regard to whether it was 2 minutes, 10 seconds and 12 frames) that
    changes according to where you place it on the timeline. If you place this
    clip at 00:00:00 on the timeline the first frame is 00:00:01, and the same
    hold true for any clips, captured from any region of the tape when place
    before or after any clip on the timeline. It adheres to the timecode as
    specified by the amount of video preceeding a particular clip.

    Certain forms of analog video have embedded timecode derived from SMPTE
    timecode generators either attached to, or integrated within the video
    recorder used to record the video. Even at that timecode goes until it is
    reset in one form or another. In professional productions an electronic
    clapper board showing timecode is use to mark the beginning of a particular
    video segment. You've seen them used in some of the behind the scenes shows
    for Hollywood productions.

    On DV timecode will reset itself to 00:00:00 if gaps are left between
    recorded segments on a single tape. For instance, if you record a few
    minutes of video and then fast forward the tape in fear of recording over
    something, the timecode for the first segment will go up to the minutes,
    seconds and frames for that particular segment. When the playback heads see
    the blank area there is no continuous timecode to read, so when it reaches
    the next recorded segment the first frame is 00:00:01. On home analog
    machines the counter will register the time recorded in a segment, find a
    blank space and then a recorded area where it will continue to count the
    amount of actual recorded area, regardless of the gaps in actual recorded
    video.

    As for the year, month, day, etc. the only way you will have this
    information on the video is if you had the time/date stamp enabled and it is
    shown in the lower corner of the video proper - whether analog or DV.
    --
    Larry Johnson
    Digital Video Solutions

    http://www.digitalvideosolutions.com
    877-227-6281 Toll Free Sales Assistance
    386-672-1941 Customer Service
    386-672-1907 Technical Support
    386-676-1515 Fax
     
    Digital Video Solutions, May 23, 2005
    #3
  4. That depends on the software you use. The better programs can have a
    timecode set for a tape, so if you can work out the timecode for a
    specific frame on tape, you can set the same at the computer, and have
    the timecode on the computer in-synch with the one on tape. So, if you
    edit, and turn out an EDL, you could recapture the material on another
    machine (but the timecode on mini-DV is not frame-accurate, so you
    might be a frame off).

    cheers

    -martin-
     
    Martin Heffels, May 23, 2005
    #4
  5. singerg

    singerg Guest

    What I am trying to get is the original frame id (date and time and
    frame number ) AFTER the video was captured, so as to know when (day
    and time ) a particular scene was taped.
     
    singerg, May 23, 2005
    #5
  6. singerg

    singerg Guest

    DV Camcorder (Sony DCR TRV17) transferred by Firewire, into Media
    Studio 6.5
     
    singerg, May 23, 2005
    #6
  7. singerg

    singerg Guest

    It's interesting. I enabled the date time, and it shows on the screen
    on playback (VCR setting). But when I capture, it does not show on the
    monitor, and when I play back it does not show either. Perhaps my
    camcorder/software does not allow this...? It seems that that
    information is not passed to the computer.
     
    singerg, May 24, 2005
    #7
  8. I think you'll find that the information is in fact part of the digital
    data on the tape, which is copied verbatim to the DV-AVI file on the
    computer when you "capture" (really transfer) video over firewire.

    Try this scientific experiment: capture some DV video as DV AVI, or use
    a captured DV AVI you already have on the hard drive, and send it back
    to a fresh tape on the camcorder via firewire.

    View and compare the time codes on the two tapes. This is much easier
    if you have access to two camcorders :)

    HTH,
    Gino
     
    Gene E. Bloch, May 24, 2005
    #8
  9. singerg

    singerg Guest

    That was a good idea, Gino. I viewed a tape that I had edited and sent
    back to MiniDV, and it contains the original date and time when it was
    taped. So the info is kept with the AVI file.
    But, how to view it on the computer? Perhaps my application does not
    show that...
    Does anyone know of an application that allows displaying the original
    frame id from the the AVI file?
     
    singerg, May 24, 2005
    #9
  10. Glad to have been of some help.

    I do wish I could help you with your actual problem, though. It does
    get discussed from time to time in this and other video-related
    newsgroups, but I have never been concerned directly about this, so I
    don't recall the useful answers :-(

    I think I recall that there is S/W out there that would create titles -
    or even subtitles - with the frame data. Subtitles would be perfect -
    you could display it or leave it invisible at will.

    Good luck,
    Gino
     
    Gene E. Bloch, May 24, 2005
    #10
  11. singerg

    Mike Kujbida Guest


    Yes. Check out Visual DV Time Stamp at http://dts8888.com/
    It's cheap ($25 with support) and it'll do what you're looking for.
    Trial download is available.

    Mike
     
    Mike Kujbida, May 25, 2005
    #11
  12. singerg

    singerg Guest

    Fantastic ! That is EXACTLY what I was looking for.

    Thanks, Mike. And thanks to all who gave me suggestions.

    George
     
    singerg, May 26, 2005
    #12
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