System and method for secure asynchronous event notification for adaptive streaming based on ISO base media file format

摘要

System and method embodiments are provided for asynchronous event notification and message handling in dynamic adaptive streaming over hypertext transfer protocol (DASH). The embodiments includes sending in a segment file, from a network server to a client, a message box that is configurable for encryption, for scheduling a callback from the client, and with one or more arguments according to a messaging scheme of the message box. The network server further sends a message handling descriptor to the client for reloading a media presentation description (MPD) for obtaining a DASH event. The client then configures a universal resource locator (URL) for the MPD using the message box and the message handling descriptor, and sends the URL back to the network server. After receiving the URL, the network server sends the MPD to the client, which then uses the MPD to request segments of an asynchronous event.

主权项

1. A method for event notification in dynamic adaptive streaming over hypertext transfer protocol (DASH), the method comprising:
sending in a segment file, from a network server to a client, a message box that is configurable for scheduling a callback from the client via a callback universal resource locator (URL) constructed according to a message handling descriptor; sending the message handling descriptor to the client for reloading a media presentation description (MPD) for obtaining a DASH event, wherein the message handling descriptor comprises a message handler element including one or more attributes comprising a first attribute that identifies a messaging scheme, a second attribute that indicates a template for a callback URL from the client, and a third attribute that indicates scheme-specific information; receiving from the client a URL for the MPD, wherein the URL is configured from the message box using the message handling descriptor; and sending the MPD to the client.