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wmsimmons · Joined: 27 Feb 2006 Posts: 314

I have the Sony HV-FX1 3 chip camera. Can anyone tell me how come motion comes out so jerky? I videoed a carousel but even though the clip before it was made into a QT movie was okay, when I compressed at highest possible quality, it looked horrible. Used photo jpeg which seems to work okay for other clips. Even Jpeg B was jerky.
However, a slow almost not moving iguana is beautiful. So do all my subjects have to stand still for a motion camera to get beautiful HD quality? Thanks!

digitalchaos · Joined: 31 Jan 2007 Posts: 268 Location: Toronto, Canada

Can you explain more on this "jerky" video. Does it play back fine on the tape, is it when you export your video?

wmsimmons · Joined: 27 Feb 2006 Posts: 314

Yes, it plays fine in the camera and looks beautiful. When I go to export it, the finished products skips and misses. The picture stops and goes, literally. Is help on the way? Thank you digitalchaos!

varius · Posted: Fri Apr 27, 2007 5:32 pm

Playing HD files in real time takes one heck of a lot of processor power and hard-disc speed. Probably your computer simply isn't fast enough?

When you have Quicktime files, try checking "display all frames" or whatever that option is called in English. That way you can check if all frames are there. It will still be a bit jerky (and way too slow), but it won't jump anymore.

wmsimmons · Joined: 27 Feb 2006 Posts: 314

Hi varius. I have a Macpro, dual core, the fastest mac there is. Does that mean that Shutterstock gets the full version or the version I see on my computer? Thanks.

varius · Posted: Fri Apr 27, 2007 5:58 pm

Sorry, but I don't understand that question. Why would there be different versions?

Anyway, a current high end MAC should be able to play back HD in real time. Strange...

wmsimmons · Joined: 27 Feb 2006 Posts: 314

Okay, I'm trying final cut pro HD instead of imovie HD. It's looking better but I don't know yet. God to know Macpro should work. I'll keep working on it. Thanks!
BTW, I also got the canon HV20. Haven't really been able to give it a fair chance yet. Hoping to use it inside my vehicle. I spend more on equipment than I'll ever get back but at least it's fun!

loren · Joined: 11 Apr 2005 Posts: 157 Location: Connecticut

I also get jerky-start/stop/start video after rendering HV20 HD clips with Vegas 7. There seems to be a direct relationship between amount/quality of information in each frame and the smoothness of viewing the clip. Lower resolution clips seem to run smoothly.

Therefore, I'm assuming that it's just my 2.6 ghz PC (and maybe not enough memory in the video card?) not able feed all the data to either VLC or Quicktime viewer and that the file itself is just fine.

So I'm going to start submitting clips and hope my logic is correct.

wmsimmons · Joined: 27 Feb 2006 Posts: 314

that's kinda what I meant in my post to Varius. I thought I remembered submitting a jerky type clip that was then accepted and maybe it is the QT viewer, not the clip. However, I'm not giving up on getting it right so I can see it before I submit. Thanks for your input.

despain · Joined: 28 May 2005 Posts: 155

I'm see this happen also with HV20 when converting from AVI to Quicktime. It only happens when there is fast motion such as a bird flapping it's wings. Then there is a "ghosting" of venetian blind effect on the wings. I've tried all different Quicktime formats and options. The AVI is clear and no issues. Might be some kind of Quicktime conversion problem.

varius · Posted: Sat Apr 28, 2007 9:40 am

digitalchaos · Joined: 31 Jan 2007 Posts: 268 Location: Toronto, Canada

If your clip has been submitted, watch the watermarked preview on SS. I can't play any of my HD .mov files on my computer, but after I upload them and they get accepted, they play perfect on the watermarked preview, letting me know my clip is fine - It's just my computer that can't handle the full sized version.

loren · Joined: 11 Apr 2005 Posts: 157 Location: Connecticut

That's exactly what I'm hoping the situation is here too.

I guess in some respect SS acceptance will be validation of that also.

But if my 1st clips are rejected, then I'll be back as square 1, unless the reviewer tells me precisely what was wrong or why he/she rejected them.

digitalchaos · Joined: 31 Jan 2007 Posts: 268 Location: Toronto, Canada

With the latest Mac Pro you shouldn't be having any of those troubles watching video's which is pretty odd to me.

wmsimmons · Joined: 27 Feb 2006 Posts: 314

I have a few things I'm gonna try- download the clip right into final cut HD.. okay that's the only thing I have in mind. It's probably a very technical answer but why does Photo jpeg work with compression on video? I'm waiting to see if my latest batch shows up (currently being processed now for about 6 hours- not a good sign) using photojpeg per your recommend. It has worked previously so one can only hope.