How to do post-processing on YouTube videos for simple video effects?

Question

I'm trying to implement 'mirrored' playback (any right-handed person in a video will appear to be left-handed in a mirrored video) on any YouTube video, but I can't seem to find any resources for manipulating a video, once recorded and uploaded. I was hoping for a simple YouTube player API level access to basic post-processing, but after digging around all three provided APIs (iframe, JavaScript, ActionScript) it looks like I am out of luck.

I was looking into inspecting the network packets for the FLV object in hopes of manually reversing the images, but then I thought I might use that as a last resort. How might you go about doing simple post-processing like mirrored playback? Is there something in the API that I'm missing? Something outside of the APIs that I could try?

Any and all suggestions are welcome.

Answer 1

You can use https://www.youtube.com/editor

There is not an API for this yet but follow YouTube Developers blog and YouTube Dev G+ Page for announcements.

Answer 2

Can you use css to rotate the element along the y axis and turn it around 180 degrees?

<div id="controlDiv"><iframe id="yt" width="100%" height="100%"></iframe></div>

#controlDiv{
   transform: rotateY(180deg); 
   -webkit-transform: rotateY(180deg); 
   -moz-transform: rotateY(180deg); 
}