Dynamic generation of video manifest files

• US 9,613,042 B1
• Filed: 04/09/2013
• Issued: 04/04/2017
• Est. Priority Date: 04/09/2012
• Status: Active Grant

• Current Assignee: Conviva Inc.
• Original Assignee: Conviva Inc.
• Inventors: Joseph, Dilip Antony, Siddiqi, Faisal Zakaria, Ganjam, Aditya R.
• Primary Examiner(s): Leroux, Etienne
• Assistant Examiner(s): Nguyen, Cindy
• Application Number:
  US13/859,706
• Time in Patent Office: 1,456 Days
• CPC Class Codes: G06F 16/16 File or folder operations, e.g. details of user interfaces specifically adapted to file systems
• CPC Class Codes: H04L 65/60 Network streaming of media packets

Abstract

Some content players use manifest files to obtain and play video content. The manifest files include metadata information for obtaining video chunks that together constitute a full video, and can be used by content players to obtain the chunks, stitch them together, and render the video as a stream. Described herein are techniques for dynamically generating manifest files. A request for a manifest file is received, such as from a video player. Manifest file contents are retrieved, such as from an original manifest file. A manifest file to be used by a video player to fetch video chunks is then dynamically generated and returned.

Claims

1. A system, comprising:

a set of one or more processors configured to, using a set of one or more interfaces;

receive, from a video player, a request for a manifest file, wherein the request includes location information associated with the manifest file;

fetch, from a remote source, the manifest file using the location information included in the request;

rewrite the fetched manifest file, wherein the rewriting of the fetched manifest file is based at least in part on global information aggregated from a plurality of video players; and

return the rewritten manifest file to the video player, wherein the video player is configured to obtain video data according to the rewritten manifest file; and

a memory coupled to the set of one or more processors and configured to provide the set of one or more processors with instructions.

2. The system of claim 1, wherein the set of one or more processors is further configured to select at least one of a bitrate and a content delivery network.

3. The system of claim 2, wherein the selection is based at least in part on at least one of a traffic and a business policy.

4. The system of claim 2, wherein the at least one of the bitrate and the content delivery network is selected based at least in part on an evaluation of the global information aggregated from a plurality of video players.

5. The system of claim 2, wherein the fetched manifest file is rewritten to include the selected at least one of the bitrate and the content delivery network.

6. The system of claim 2, wherein the selection is based at least in part on the request.

7. The system of claim 6, wherein the request includes a device type associated with the video player.

8. The system of claim 6, wherein the request includes a content type associated with the video player.

9. The system of claim 6, wherein the request includes historical information associated with the video player.

10. The system of claim 1, wherein the rewriting includes overwriting at least a portion of the fetched manifest file.

11. The system of claim 1, wherein the rewritten manifest file, when followed by the video player, causes a bitrate switch.

12. The system of claim 1, wherein the rewritten manifest file, when followed by the video player, causes a content delivery network switch.

13. The system of claim 1, wherein the fetched manifest file comprises a static manifest file.

14. The system of claim 1, wherein the location information comprises a universal resource locator associated with the manifest file.

15. A method, comprising:

receiving, from a video player, request for a manifest file, wherein the request includes location information associated with the manifest file;

fetching, from a remote source, the manifest file using the location information included in the request;

rewriting, using a set of one or more processors, the fetched manifest file, wherein the rewriting of the fetched manifest file is based at least in part on global information aggregated from a plurality of video players; and

returning the rewritten manifest file to the video player, wherein the video player is configured to obtain video data according to the rewritten manifest file.

16. The method of claim 15, further comprising selecting at least one of a bitrate and a content delivery network.

17. The method of claim 16, wherein the fetched manifest file is rewritten to include the selected at least one of the bitrate and the content delivery network.

18. The method of claim 15, wherein the rewritten manifest file, when followed by the video player, causes a bitrate switch.

19. The method of claim 15, wherein the rewritten manifest file, when followed by the video player, causes a content delivery network switch.

20. A computer program product embodied in a non-transitory tangible computer readable storage medium and comprising computer instructions for:

receiving, from a video player, a request for a manifest file, wherein the request includes location information associated with the manifest file;

fetching, from a remote source, the manifest file using the location information included in the request;

rewriting the fetched manifest file, wherein the rewriting of the fetched manifest file is based at least in part on global information aggregated from a plurality of video players; and

returning the rewritten manifest file to the video player, wherein the video player is configured to obtain video data according to the rewritten manifest file.