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uploaded vid to youtube, why choppy?

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code777

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i edited a movie in iMovie and then did the "share" and created a .mov file in quicktime but when i upload it the movie is all choppy. but when i play it its fine. what gives? did i not do it correctly? thanks!
 
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Did you export the movie specifically for web streaming in iMovie? Otherwise you can end up with a very large file that would be too large for most people to download and watch at the same time.

Also... if you did set it to web streaming keep in mind it will drop the framerate to 12fps... which may look choppy to you. You can adjust this by going to the expert settings... but remember, the higher the fps the bigger the file.
 
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code777

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hmmm, so the file is too large? i think i had it set to "CD-ROM" actually but I also did it for "Web Streaming" and I think I got the same results. Its all choppy (one shot to another) but audio is perfect.
 
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Actually... I think you are talking about the slower framerate when you say "choppy"... A standard video framerate is 29.97fps (frames per second) ... So when you go to 12fps it's almost like cutting out 2 of each 3 frames. So you will end up with that studdered or choppy look. Go to expert settings and try increasing your framerate to 29.97 again. Just make sure to set your compression ratio higher so that you don't end up with a huge file.

Let me ask you this... When you play the exported video from your harddrive does it still look choppy to you? Or is it only after you upload it and view it on youtube.com?
 
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code777

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thanks sarahsboy for the advise.

but when i play it on my harddrive it looks normal. its only when i upload it to youtube or even google video it looks choppy. like frame by frame, weird. the audio is fine though... not sure why when i upload the file to either host they play like that?
 
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You may want to look at trying a different codec for the video... The default for web/web streaming in iMovie is h.264 which is still relativaly new... You can try going to the expert settings and encoding as mpeg-4 which has been around longer and is a more established/tested format.

I know youtube and google in theory support h.264... But I'm just trying to think of ways to troubleshoot the issue.
 
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code777

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i'll try to encode it by mpeg4 and see what happens. thanks so much for the help!
 

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