The European Court of Justice (ECJ) ruled that embedding a copyrighted video that is publicly available on another website is not a copyright violation
On 21 October 2014, ECJ ruled that embedding a copyrighted video does not constitute a copyright violation.
"The embedding in a website of a protected work which is publicly accessible on another website by means of a link using the framing technology … does not by itself constitute communication to the public within the meaning of [the EU Copyright directive] to the extent that the relevant work is neither communicated to a new public nor by using a specific technical means different from that used for the original communication.
The key here is the use of using inline frames causing the material to disappear from the web page on which it is embedded if it is taken down at the source.