Each YouTube video has four generated images. They are predictably formatted as follows:
https://img.youtube.com/vi/<insert-youtube-video-id-here>/0.jpg
https://img.youtube.com/vi/<insert-youtube-video-id-here>/1.jpg
https://img.youtube.com/vi/<insert-youtube-video-id-here>/2.jpg
https://img.youtube.com/vi/<insert-youtube-video-id-here>/3.jpg
The first one in the list is a full size image and others are thumbnail images. The default thumbnail image (i.e., one of 1.jpg
, 2.jpg
, 3.jpg
) is:
https://img.youtube.com/vi/<insert-youtube-video-id-here>/default.jpg
For the high quality version of the thumbnail use a URL similar to this:
https://img.youtube.com/vi/<insert-youtube-video-id-here>/hqdefault.jpg
There is also a medium quality version of the thumbnail, using a URL similar to the HQ:
https://img.youtube.com/vi/<insert-youtube-video-id-here>/mqdefault.jpg
For the standard definition version of the thumbnail, use a URL similar to this:
https://img.youtube.com/vi/<insert-youtube-video-id-here>/sddefault.jpg
For the maximum resolution version of the thumbnail use a URL similar to this:
https://img.youtube.com/vi/<insert-youtube-video-id-here>/maxresdefault.jpg
All of the above URLs are available over HTTP too. Additionally, the slightly shorter hostname i3.ytimg.com
works in place of img.youtube.com
in the example URLs above.
Alternatively, you can use the YouTube Data API (v3) to get thumbnail images.
It's possible. But you will have major problems if you're looking for cross browser support. What you can do is offer HTML5 video to the browsers supporting it and then offer QuickTime for browsers not supporting it.
<video src="stream.mp4">
<!-- Don't support <video> -->
<object>
<param name="src" value="video.mp4" />
<param name="autoplay" value="true" />
<param name="type" value="video/quicktime" height="256" width="320" />
<embed src="video.mp4" height="256" width="320" autoplay="true" type="video/quicktime" pluginspage="http://www.apple.com/quicktime/download/" />
</object>
</video>
Also see: Streaming via RTSP or RTP in HTML5
Best Answer
top of my head, VLC Media Player. It has the ability to stream Live Video from a given capture device. There is a how to guide here.
One shortcoming I noticed is the end user must have VLC installed as well. But I am sure there is a way around it with enough research.