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Thread: Playing back several videos at the same time

  1. #1

    Default Playing back several videos at the same time

    Greetings from Venezuela.

    Where I work we sometimes have to play back synchronized videos on several screens (things like fonts jumping from screen to screen and the like), but we're having troubles keeping the different videos synchronized.

    What we usually do is to have several DVDs of the same model together, and use one single control to play back, but anytime they loop seems they're a few frames apart, so after a few repeats we have to start them again (using the "back" key on the control) to make them sync up again. Of course that is annoying since it requires someone to do it manually from time to time.

    We're basically looking for a way to do that (we've done up to 4 videos but there is something in the horizon that might make us need and keep them synced without having someone to look after it. Maybe a software that could be used on networked PCs to make it play videos at the same time (each one locally stored in one computer) or something like that... any ideas would be welcome.

  2. #2
    Join Date
    Oct 2008
    Location
    ENGLAND!
    Posts
    774

    Lightbulb

    if the videos are the same then use a video splitter.

    if they're all different videos but from they all sync together (e.g. multi camera shoot) then decide how many you need playing. if it 4 then you can get a motherboard with 2 pci-express x16 slots and this will give you four. or get a motherboard with 3 pci express slots and this will give you 6. most computers come with only one pci-express x16 slot so you can also use pci graphic cards.

    on windows xp, once you've got you cards installed, install the drivers.

    now right click windows desktop and goto properties

    click the "settings" tab and you should see a shadded box for each of the monitors supported. click each one and tick the box that says expand my desktop onto this monitor.
    now download and install media player classic (MPC). opne up media player classic and goto View / Options and in the middle you will see Open Options, currently it will be on Use the same player for each media file, also change repeat to unlimited. click apply and now navigate to the folder withh all of the video files you want to play simultaniously. highlight them all and click enter. drag each window onto its own screen and one at a time double click the video. it should go full screen.

    Change this to the one below it which is Open a new player for each media file
    Good Examples of hardware

    pci-express x16 graphics card
    2 x http://www.novatech.co.uk/novatech/specpage.html?SAP-4350


    pci graphics card
    4 x http://www.novatech.co.uk/novatech/specpage.html?SAP-9250PC


    Esentials - motherboard + cpu + ram + hard drive + power supply
    motherboard - http://www.novatech.co.uk/novatech/specpage.html?GIG-EP43S3
    Processor - http://www.novatech.co.uk/novatech/specpage.html?IL-E5200 (may need to upgrade)
    Ram - 2 x http://www.novatech.co.uk/novatech/specpage.html?RAM-80/1GB
    Hard Drive - http://www.novatech.co.uk/novatech/specpage.html?MAX-DM250S
    Power Suppply - http://www.novatech.co.uk/novatech/specpage.html?OCZ-F700

    Nice but not needed - Case
    Case - http://www.novatech.co.uk/novatech/specpage.html?AER-VTOUCH

    total price = 550 plus shipping.
    total price in Venezuela Bolivares Fuertes = 1,738.62 VEF plus shipping

    capacity = 16 monitors

    post back to tell me thats not what you need

  3. #3

    Default

    This way looks promising, my main concern was about CPU speed being fast enough for multiple videos playing, but I did a quick test on my computer and seemed to work ok. I'll try again tomorrow, probably leave several copies of the same video but with different filenames running when I leave for work, to see if they're still synced up when I come back.

    Any other idea would be appreciated too, since this solves one of the uses we though for this (several looped videos on different screens interacting with each other), but I'd also like a way to do it where I can control when all the videos start playing, mainly for presentations when someone presents the videos before they start.

    Another thing I was thinking was to find someone to modify MPC or Videolan (or something simmilar) to do what I want, either by making one set of controls apply to all open videos, or maybe something like control video playback on several networked computers, but it just occurred to me today so still no idea if it's feasible or if anyone nearby can do it (I can probably coax my boss into paying someone to do it, but because of the stupid venezuelan currency exchange laws we wouldn't be able to pay anyone abroad)

  4. #4
    Join Date
    Oct 2008
    Location
    ENGLAND!
    Posts
    774

    Default

    Quote Originally Posted by LocoMan View Post
    This way looks promising, my main concern was about CPU speed being fast enough for multiple videos playing, but I did a quick test on my computer and seemed to work ok. I'll try again tomorrow, probably leave several copies of the same video but with different filenames running when I leave for work, to see if they're still synced up when I come back.

    Any other idea would be appreciated too, since this solves one of the uses we though for this (several looped videos on different screens interacting with each other), but I'd also like a way to do it where I can control when all the videos start playing, mainly for presentations when someone presents the videos before they start.

    Another thing I was thinking was to find someone to modify MPC or Videolan (or something simmilar) to do what I want, either by making one set of controls apply to all open videos, or maybe something like control video playback on several networked computers, but it just occurred to me today so still no idea if it's feasible or if anyone nearby can do it (I can probably coax my boss into paying someone to do it, but because of the stupid venezuelan currency exchange laws we wouldn't be able to pay anyone abroad)
    You could use mpc's web interface. and modify that, that would be much easier

    and a correction to my other post, you would be able to do 12 screens...it was late at night where i was.

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