问题
I am uploading videos using the YouTube/Gdata API (in python).
After a video has been uploaded via the API, I receive the a response with data about the video (Youtube link, id, etc). However, the video is not publicly available while it is being encoded by YouTube (typically a few minutes).
Can I specify a callback url that YouTube can post to after it finishes processing the video?
回答1:
No.
You need to poll using the video id to and check the 'state' of the video to detect when 'processing' is no longer present.
回答2:
With Youtube's V3 API, you need to do something similar, but slightly different.
GET https://www.googleapis.com/youtube/v3/videos?part=processingDetails&id={VIDEO_ID}&key={YOUR_API_KEY}
Further details here: https://developers.google.com/youtube/v3/docs/videos/list
来源：https://stackoverflow.com/questions/7588239/youtube-api-how-to-specify-an-api-callback-after-an-uploaded-video-has-finished