Weird pixel effect after compressing?

I've noticed that periodic effect on PBS stuff...Is it possibly a long GOP with the "masterframe" occuring at that interval?
What kind of camera and all that?
 
I'm going to assume you used h.264 or sorenson 3 as your codec in Quicktime.

You can't use these codecs out of Quicktime unless you want weird artifacts like that happening.

I cannot recommend Using Quicktime to compress anything that will be streaming on the web. You'll find better results using On2 VP6 and creating a flash application to stream. Most of this functionality can be used for free with free encoding software, and Wordpress to publish the videos on a page.

The problem that is happening is that the encoder is pushing more bits on the moving piece of footage, and on the background they just get less bits for the compression. This is how compression works.

Some algorithms are better than others. Quicktime's codecs have never impressed me for efficency and quality.

All you can do to fix this is to either use alot more bitrate in your codecs in quicktime, or try to find something else to distribute the video. Besides you don't want to be using quicktime files where someone could easily download your video and re-edit it into something else.

You're going to find that presenting video on the internet is a lot more than just Compressing a file, and linking it to someone. Alot of your compressibility depends on pre-processing, and the types of software your using to present the content.
 
So that's a Quicktime thingy? As I said earlier I see that pulsing effect on a lot of stuff on PBS. One would think that those productions use a fairly high bit rate.
 
Yes I am using the H.264 codec.

Im not really big into flash right now. I love the idea you said about how people can steal and re-edit, but that's something I'll look into when I get to become more professional. As of right now im just trying to get some shorts of action sports out there, but at the same time I want them to look nice and clear. I guess I'll just be having a huge file size until I work out a way.

Anyone else have any suggestions on what I can do with my problem?
 
I don't know if this effect is related to how you're making the file in Quicktime, but I can say that this is exactly the result I'd expect from trying to compress extremely difficult content into a too-small data stream. This is a long-GOP issue, and lots of tiny leaves and rushing water will give long-GOP fits. Try doubling your file size and it might look a lot better.
 
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