VideoHelp Forum




+ Reply to Thread
Results 1 to 9 of 9
  1. Member
    Join Date
    Oct 2008
    Location
    United States
    Search Comp PM
    Example: http://www.youtube.com/watch?v=z7z47rJIadQ Whenever there's movement involved in one of my youtube videos, these weird tear things show up. They don't show up after I render it in vegas, so I'm stumped. It only shows up on youtube, but I've seen people that have the same camera as I do, and it doesn't do it for their videos, so I'm sure it's not any sort of camera setting. How do I get rid of these tears? Help is greatly appreciated. Thank you.
    Quote Quote  
  2. It looks like a framerate mismatch. I see the tearing but only when the video is playing. It doesn't show up when paused. It reminds me of watching a 50Hz video in a window on a 60Hz display.
    John Miller
    Quote Quote  
  3. What resolution are you uploading to YouTube?
    It's best to use 1280x720p/30fps or 640x480p/30fps.
    http://www.google.com/support/youtube/bin/answer.py?hl=en&answer=165543
    http://www.google.com/support/youtube/bin/answer.py?hl=en&answer=132460
    Quote Quote  
  4. Member
    Join Date
    Oct 2008
    Location
    United States
    Search Comp PM
    I am uploading at 1280x720 at 29.970 fps. If it is a "framerate mismatch" would there be any way of fixing it?
    Quote Quote  
  5. Use MediaInfo on the source and what Vegas outputs, see if they match.
    Also make sure you output progressive, upload the source file to YouTube and see if you get the artifacts.
    Quote Quote  
  6. Member
    Join Date
    Oct 2008
    Location
    United States
    Search Comp PM
    Ok, the only difference is the mpbs, and the resolutions. The source file is 1920*1080 and is 16.1 MBPS, and the output file from Vegas is 1280*720 and is 197 KBPS. I already output to progressive. Should I try uploading it in 30 fps instead?
    Quote Quote  
  7. Member
    Join Date
    Oct 2008
    Location
    United States
    Search Comp PM
    I uploaded the video, it still had the tears. If you are able to upload videos without those tears, could you give me your Sony Vegas settings? I also uploaded the source file, same thing.
    Quote Quote  
  8. The tears aren't in your video or the files that Youtube created from it. The tears are a problem with the Flash player. It doesn't know when the graphics card is in vertical refresh. It just changes the frame buffer any old time. The tears appear when the frame buffer is updated while the screen is being drawn. There's nothing you can do about this. It happens with all online video sites that use Flash.
    Quote Quote  
  9. It's not the camera or settings or the way youtube re-encoded it, it's the way video is rendered through flash. If you check the video downloaded from youtube (check your temp internet folder) , there is no tearing (or at least not as much) in a normal video player like MPC, VLC , KMplayer , etc...

    Edit: Same posting time jagabo
    Quote Quote  



Similar Threads

Visit our sponsor! Try DVDFab and backup Blu-rays!