embedding content on facebook page

When I share YouTube v开发者_如何学Cideo link on Facebook, facebook renders video in page.

Is that because YouTube supports something like oembed or facebook is doing something very custom for YouTube or combination of both?

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Facebook will allow you to embed video as long as it is in SWF format, like youtube embeds. Use these open graph tags on your page:

<meta property="og:video" content="http://example.com/awesome.swf" />
<!-- these 3 are optional -->
<meta property="og:video:height" content="640" />
<meta property="og:video:width" content="385" />
<meta property="og:video:type" content="application/x-shockwave-flash" />