问题
I'm making a Facebook Live app. So.. I want to stream Facebook Live via my app. And I found this api (https://developers.facebook.com/docs/graph-api/reference/live-video/#Reading).
As you can see, Live Read API has "dash_preview_url". So.. This is my question. "Can I use "dash_preview_url(in Facebook Live API)" for live streaming to my app's users. (Not for broadcasters, for viewers.)" "When I use this, is it against Facebook's Terms of Service?"
回答1:
Not sure about dash_preview_url, but preview_url is not intended for a player's stream:
https://developers.facebook.com/docs/videos/live-video/production-broadcasts
After creating a live video in preview, you can query the live video node for the preview_url. This url can be used in a 3rd party RTMP player to verify video and audio content (see example below).
It's important to note that the preview_url can only be used for 4 hours and is limited to no more than 10 viewers.
来源：https://stackoverflow.com/questions/42616514/can-i-use-dash-preview-urlin-facebook-live-api-for-live-streaming-to-my-app