If you are looking for some special control over a specific Youtube video that you want to link to, you can add these parameters to the end of the youtube URL string to enable or disable functionality.
For instance. You can jump to a specific time in a video by adding the following to the end of the URL string. #t=1m24s
So this Rick Roll video can jump to 1 minute and 24 seconds into the video by changing this URL
http://www.youtube.com/watch?v=dQw4w9WgXcQ
to this
http://www.youtube.com/watch?v=dQw4w9WgXcQ#t=1m24s
Or you could make the video Autoplay by adding this to the end of the URL ?autoplay=1
So that URL for the Rick Roll will now be:
http://www.youtube.com/watch?v=dQw4w9WgXcQ#t=1m24s&autoplay=1
(You can see that i have added an & between parameters.)
So now we have a Rick Roll that will start at 1 minute 24 seconds and autoplay the video.
Here is a link to the list on the Google Youtube API page to get the full list and what each does.
Just added – Want to remove the Youtube branding from the player? add ?modestbranding=1 to the end of the URL.