:FAQ about URL signing for live streaming

Can I modify the expiration timestamp for a signed URL?

You can modify the expiration timestamp for a signed URL. However, if you modify the expiration timestamp for a signed URL, the signed URL changes to a new one. The original signed URL remains valid before the original timestamp. To apply the new expiration timestamp immediately, replace the original signed URL with the new one.

Can I share a live stream to others by using a QR code?

You can share the playback URL of a live stream by using a QR code. However, you must set a long validity period for the playback URL. You can also disable URL signing. Generally, users scan the QR code in WeChat and play the live stream by using the H5 player in WeChat. The H5 player does not support all video formats. For example, the H5 player does not support the FLV format. We recommend that you use the M3U8 format.

Can I set a signed URL for multiple streaming domains?

Does ApsaraVideo Live provide an API operation for signing URLs for live streaming?

ApsaraVideo Live provides an algorithm instead of an operation to implement URL signing. You can construct a streaming URL and write code to calculate the signed streaming URL. To calculate a signed URL, construct a function based on the URL signing algorithm. Then, use the function to calculate the signed URL of a streaming URL or an ingest URL as needed. For more information, see URL signing demos.