Loading an Edited Video Back onto Canon S1IS for use as a playback device

Discussion in 'Amateur Video Production' started by Martin, Sep 13, 2006.

  1. Martin

    Martin Guest

    I have a Canon S1IS digital camera, which takes some pretty nice video
    (for a still camera).

    I would like to be able to upload a short edited video, which may
    contain stills as well as motion video from several sources other than
    this camera, back to the S1IS and play it back on the camera's display
    (and through the camera's analog outputs).

    The purpose of doing this is to use the camera as a handy "demo device"
    by hooking it to a big-screen TV at a bar, and playing a short (5-10
    minutes) video made in Windows Movie Maker. Failing this, I will have
    to buy a portable DVD player and make DVDs of the videos.

    The question is - what format does the video need to be in, so that it
    can be put back onto a compactflash card and played in the S1IS camera,
    and where can I download a software utility to convert to this format?
    Is this offered in some of the Canon utilities packages?

    If I look at the files generated by the S1IS, they use the generic
    extension .AVI. Gspot lists them as being of the form "MJPEG" (motion
    jpeg?), and I've heard some refer to the S1IS format as "MPEG-4".

    thanks,

    Martin
     
    Martin, Sep 13, 2006
    #1
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  2. Martin

    Ray S Guest


    www.videohelp.com for a comprehensive list of links to apps and tutorials.

    Virtualdub is a good, free, program that should let you do the cutting
    and joining you want.
     
    Ray S, Sep 14, 2006
    #2
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  3. Martin

    Martin Guest

    Ray,

    I don't need anything else to do the editing to create my content.
    What I'm looking for is a way to put the video back onto the camera for
    playback.

    Martin
     
    Martin, Sep 14, 2006
    #3
  4. Martin

    Martin Guest

    John,

    Any idea why it didn't work on your S2IS? What format did you put the
    movie into for the experiment?

    Martin
     
    Martin, Sep 14, 2006
    #4
  5. Martin

    EDM Guest

    The problem isn't the video format. Canon (like every other
    camera manufacturer) has their own file indexing system. Even
    if an edited MJPEG is in the proper format, the camera won't
    see or display it unless it's indexed properly.

    I believe you can get the particulars of Canon's indexing system
    with their SDK, but it's probably far more hassle than it's worth.
    Just get a low-end portable DVD player and be done with it.
     
    EDM, Sep 14, 2006
    #5
  6. Martin

    Ray S Guest

    Putting it onto the flash card is not the problem. You can write to a
    flashcard with any $20 flashcard reader/writer. Your problem is that you
    have to put BACK onto the flashcard, video in a format that your camera
    will read. Gspot says that it is Mjpeg so thats the format it needs to
    stay in.
     
    Ray S, Sep 14, 2006
    #6
  7. Martin

    Martin Guest

    Actually, I believe the format is the key issue. It's not hard to
    replicate the file index, just use one from an already-stored clip that
    you delete. I've put edited JPG photos back onto the flash memory of
    several cameras, and they displayed just fine. With the edited video,
    Moviemaker can't output in the original MJPEG or MPEG-4 or whatever
    format, it can only output in WMV or one specific embodiment of AVI
    (which has it's own problems that I've documented in other threads).

    I'm looking for someone who has successfully recoded a video back to
    the original Canon-used format. Accomplishing that, I believe file
    names and indexing will be a minor issue.

    Of course, I already know how to make DVDs, but I'm interested in the
    elegant solution that would prevent me from having to pack around an
    additional piece of hardware that would have only one purpose (playback
    of a 5-minute video clip), when my camera is always with me and can
    perform the same function.

    best regards,

    Martin
     
    Martin, Sep 15, 2006
    #7
  8. Martin

    Martin Guest

    My understanding is that "AVI" is not a specfic format, only a generic
    "wrapper" that can actually contain many different things. For
    example, uncompressed DV and DivX may both use the .AVI file extension,
    but they are very different. Canon's .AVI is something else, and I'm
    hoping to find someone who can identify and transcode to it.

    best regards,

    Martin
     
    Martin, Sep 15, 2006
    #8
  9. Martin

    Martin Guest

    Correct. Now you're back on track with my original question - how to
    recode a Windows Moviemaker output to the specific data type used by
    Canon.

    best regards,

    Martin
     
    Martin, Sep 15, 2006
    #9
  10. Martin

    Ray S Guest

    But that WAS what I answered, suggesting that you could use Virtualdub
    rather than windows moviemaker.

    Still, I see from some other poster that the Canon expects some specific
    indexing that only it does when writing to the card, so, taking a file
    from moviemaker, converting it to a mp4 (mjpeg it sounds like from your
    intital post and then just copying it to the card might not be expected
    to work.

    Reviews of the camera suggest you can do crude editing of the file right
    on the camera, which, at the end of the day, could be less hassle than
    capturing it to moviemaker, exporting whatever format moviemaker
    supports, finding an app with codec to covert that back to mjpeg,
    getting it back onto the card, hoping the camera sees the file on the
    card and reads it.
     
    Ray S, Sep 15, 2006
    #10
  11. Martin

    Ray S Guest


    If it is mjpeg as you suspect, then get a demo version of this codec and
    see if you can take what you export out of moviemaker (as I don't know
    anything about moviemaker, I don't have any idea if third party codecs
    are supported), and re-encode it to mjpeg and go from there.

    At this point, I think your on trial and error, trying and eliminating
    solutions.
     
    Ray S, Sep 15, 2006
    #11
  12. Martin

    Ray S Guest


    Ooops the link would be helpful.

    http://www.morgan-multimedia.com/technicalsV3.htm
     
    Ray S, Sep 15, 2006
    #12
  13. Martin

    Ray S Guest

    Total Video Converter could be the 'easy button' solution.
     
    Ray S, Sep 15, 2006
    #13
  14. Martin

    Martin Guest

    Unfortunately, as I noted in the original post, the finished video
    consists of material from several sources, so crude editing on the
    camera isn't an option. It will have to be recoded from whatever is
    output from the editing software. For Movie Maker, this means recoding
    from WMA or AVI. DV-NTSC (in Moviemaker) is a high bitrate AVI bastard
    that is compatible with some, but not all, transcoding routines. Auto
    Gordian Knot and Nero 6 both have problems with it.

    I followed your link from another part of this thread, pointing to the
    trial version utility, and will give that a shot. It's the best (or
    only) potentially-compatible suggestion I've seen.

    Thanks!

    Martin
     
    Martin, Sep 15, 2006
    #14
  15. Martin

    EDM Guest

    Please let us know if you discover a way to do this. My
    understanding is that Canon's indexing is not just a set of
    filename pointers. It contains more info, such as thumbnail
    and splice pointers, etc which is not stored in the movie files,
    and while most of this info conforms to the DCF, some of it
    is Canon-specific.
     
    EDM, Sep 15, 2006
    #15
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