Method and system for federated over-the-top content delivery
A method is provided for managing over-the-top delivery of content through a plurality of content delivery networks (CDN). The method provided works transparently with standard HTTP servers supporting an initial request for content from a client to a first preferred CDN. If the first CDN does not have the content, the method includes provisions for the first CDN to acquire the content from a second CDN, or for the client to request the content from a second CDN directly. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.
1. A method for distributing content to a diverse set of mobile client devices, the method comprising:
processing source content, wherein processing the source content comprises transcoding the source content and generating a plurality of alternate bitrate segments for the source content;
storing the processed content at a first plurality of servers associated with one or more content delivery networks;
storing the processed content at a second plurality of servers associated with one or more content delivery networks, wherein the processed content stored at the second plurality of servers is received from the first plurality of servers;
receiving a request from a first client for the processed content;
determining a priority for at least two servers wherein the priority is based on one or more characteristics of the first client and one or more characteristics of the at least two servers; and
providing the first client with an identification of the at least two servers from which to retrieve the processed content wherein the identification informs the first client of the relative priority of the at least two servers.
2. The method of claim 1 , wherein transcoding the source content comprises generating a plurality of different bitrates, frame rates, resolutions, codecs, and container formats associated with the source content.
3. The method of claim 1 , wherein determining a priority for the at least two servers is based on availability of compatible content encodings for the first client.
4. The method of claim 1 , wherein one or more characteristics of the first client and one or more characteristics of the at least two servers comprises a physical locality of the first client and the at least two servers.
5. The method of claim 1 , wherein one or more characteristics of the first client and one or more characteristics of the at least two servers comprises a temporal locality based on previously reported client retrieval analytics information.
6. The method of claim 1 , further comprising receiving and processing content retrieval analytics messages from at least the first client, the content retrieval analytics messages containing information describing performance of at least one of the at least two servers.
7. The method of claim 1 , further comprising encrypting the processed content.
8. A workflow management system for controlling distribution of content to a diverse set of mobile client devices, comprising:
at least a first server configured to process source content, wherein processing the source content comprises transcoding the source content and generating a plurality of alternate bitrate segments for the source content;
a first plurality of servers associated with one or more content delivery networks, the first plurality of servers configured to:
store the processed content; and
transmit the processed content to a second plurality of servers associated with one or more content delivery networks;
at least a second server configured to:
receive a request from a first client for the processed content;
determine a priority for at least two servers wherein the priority is based on one or more characteristics of the first client and one or more characteristics of the at least two servers; and
provide the first client with an identification of the at least two servers from which to retrieve the processed content wherein the identification informs the first client of the relative priority of the at least two servers.
9. The system of claim 8 , wherein transcoding the source content comprises generating a plurality of different bitrates, frame rates, resolutions, codecs, and container formats associated with the source content.
10. The system of claim 8 , wherein the second server configured to determine a priority for the at least two servers is configured to determine a priority for the at least two servers based on availability of compatible content encodings for the first client.
11. The system of claim 8 , wherein one or more characteristics of the first client and one or more characteristics of the at least two servers comprises a physical locality of the first client and the at least two servers.
12. The system of claim 8 , wherein one or more characteristics of the first client and one or more characteristics of the at least two servers comprises a temporal locality based on previously reported client retrieval analytics information.
13. The system of claim 8 , wherein the second server is further configured to receive and process content retrieval analytics messages from at least the first client, the content retrieval analytics messages containing information describing performance of at least one of the at least two servers.
14. The system of claim 8 , wherein the first server is further configured to encrypt the processed content.