flash - (curiosity) Why does youtube show the loading icon even when it has loaded enough video to start playing? -


I mean YouTube or any other streaming video site, but I've seen it on YouTube. The loaded band shows that enough video is loaded more than the stream so that the player can play it, but it is suddenly loading and showing the loading icon?
I'm just curious but this is a question related to programming because it can help me understand flash video better.

AFAIK, streaming video does not load sequentially, although the protocol tries to do this It is possible that a part has not yet been fully downloaded, on average, most of the video is shutting down the moving download bar, it seems that nothing happens.

There is another possibility, but I do not know that the protocol is adequately adequate, that a special package is not fully received, but the application thinks it did. When trying to execute that part of the stream, the video stops, while it loads missing bits.


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