Systems and methods for generating targeted manifest files

• US 8,234,350 B1
• Filed: 12/19/2011
• Issued: 07/31/2012
• Est. Priority Date: 12/19/2011
• Status: Active Grant

• Current Assignee: SeaChange International Incorporated
• Original Assignee: SeaChange International Incorporated
• Inventors: Gu, Lei, Dicks, Andrew Brian
• Primary Examiner(s): WON, MICHAEL YOUNG
• Application Number:
  US13/330,409
• Time in Patent Office: 225 Days
• Field of Search: 709/203, 709/217, 709/226, 709/231, 709/232
• US Class Current: 709/217
• CPC Class Codes: H04N 21/234309 by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo conversion of standards in analog television systems H04N7/01
• CPC Class Codes: H04N 21/2668 Creating a channel for a dedicated end-user group, e.g. insertion of targeted commercials based on end-user profiles information retrieval from the Internet by querying with filtering and personalisation G06F16/9535; arrangements for replacing or switching information during the broadcast H04H20/10; push services over packet-switching network H04L12/1859; adaptation of message content in packet-switching networks H04L51/063
• CPC Class Codes: H04N 21/812 involving advertisement data advertising per se G06Q30/02
• CPC Class Codes: H04N 21/8458 involving uncompressed content

Abstract

A computerized method for dynamically generating a targeted manifest file for use by a playback device to retrieve a video stream including targeted content, includes periodically receiving a manifest file that identifies a sequence of media files, and updating a master manifest file to identify the sequence of media files from each periodically received index file, such that the master manifest file identifies a continuous master sequence of media files that constitute the video stream. The sequence of media files constitutes a portion of a video stream. The method further includes, upon request from a playback device, generating a targeted manifest file from the master sequence of media files. The targeted manifest file identifies a custom sequence of media files that includes targeted content, wherein one or more consecutive media files identified in the master sequence are substituted with a different number of targeted media files in the custom sequence.

Claims

1. A computerized method for dynamically generating a targeted manifest file for use by a playback device to retrieve a video stream including targeted content, comprising:

periodically receiving a manifest file that identifies a sequence of media files, the sequence of media files constituting a portion of a video stream;

updating a master manifest file to identify the sequence of media files from each periodically received index file, such that the master manifest file identifies a continuous master sequence of media files that constitute the video stream; and

upon request from a playback device, generating a targeted manifest file from the continuous master sequence of media files, the targeted manifest file identifying a custom sequence of media files that includes targeted content, wherein one or more consecutive media files identified in the continuous master sequence of media files are substituted with a different number of targeted media files in the custom sequence of media files.

2. The computerized method of claim 1, wherein each periodically received manifest file includes a media sequence number that represents a first media file identified in the sequence of media files, the method further comprising:

determining a unique sequence number of each of the media files identified in the periodically received index file based on the media sequence number; and

updating the master manifest file to identify the media files identified in the periodically received index file that are missing from the master sequence of media files.

3. The computerized method of claim 2, wherein updating the master manifest file includes comparing the unique sequence number of each of the media files identified in the periodically received index file with the unique sequence number of each media files of the continuous master sequence of media files to identify the media files identified in the periodically received index file that are missing from the continuous master sequence of media files.

4. The computerized method of claim 2, wherein updating the master manifest file includes comparing the unique sequence number of each of the media files identified in the periodically received index file with the unique sequence number of the last media file identified in the continuous master sequence of media files to identify the media files identified in the periodically received index file that are missing from the continuous master sequence of media files.

5. The computerized method of claim 1, wherein generating the targeted manifest file from the continuous master sequence of media files further comprises:

substituting at least two consecutive media files identified in the continuous master sequence of media files associated with a combined presentation period with a different number of targeted media files in the custom sequence of media files having the same combined presentation period.

6. The computerized method of claim 5, wherein substituting the at least two consecutive media files includes substituting the at least two consecutive media files identified in the continuous master sequence of media files associated with the combined presentation period with a greater number of targeted media files in the custom sequence of media files having the same combined presentation period.

7. The computerized method of claim 5, wherein substituting the at least two consecutive media files includes substituting the at least two consecutive media files identified in the continuous master sequence of media files associated with the combined presentation period with a fewer number of targeted media files in the custom sequence of media files having the same combined presentation period.

8. The computerized method of claim 1, wherein generating the targeted manifest file from the continuous master sequence of media files further comprises:

requesting a user profile associated with a user of the playback device; and

identifying the targeted media files for substitution based on at least one characteristic of the user profile.

9. The computerized method of claim 1, wherein the one or more consecutive media files are identified for substitution based on an informational tag associated with each of the one or more consecutive media files, wherein the informational tag identifies the associated media file as an advertisement.

10. A computerized system for dynamically generating a targeted manifest file for use by a playback device to retrieve a video stream including targeted content, comprising:

a content publishing system configured to periodically receive a manifest file from a transcoding system, the manifest file identifying a sequence of media files that constitute a portion of a video stream, wherein the content publishing system is configured to;

update a master manifest file to identify the sequence of media files from each periodically received index file, such that the master manifest file identifies a continuous master sequence of media files that constitute the video stream; and

upon request from a playback device, generate a targeted manifest file from the continuous master sequence of media files, the targeted manifest file identifying a custom sequence of media files that includes targeted content, wherein one or more consecutive media files identified in the continuous master sequence of media files are substituted with a different number of targeted media files in the custom sequence of media files.

11. A computer program product, tangibly embodied in a computer readable storage device, for dynamically generating a targeted manifest file for use by a playback device to retrieve a video stream including targeted content, comprising instructions being executable to cause a computer to:

periodically receive a manifest file that identifies a sequence of media files, the sequence of media files constituting a portion of a video stream;

update a master manifest file to identify the sequence of media files from each periodically received index file, such that the master manifest file identifies a continuous master sequence of media files that constitute the video stream; and

upon request from a playback device, generate a targeted manifest file from the continuous master sequence of media files, the targeted manifest file identifying a custom sequence of media files that includes targeted content, wherein one or more consecutive media files identified in the continuous master sequence of media files are substituted with a different number of targeted media files in the custom sequence of media files.

12. A computerized method for dynamically generating targeted manifest files for use by playback devices in retrieving video streams that include targeted content, comprising:

periodically receiving a manifest file that includes a first sequence of media file locators, the media file locators identifying media files constituting at least a portion of a video stream;

updating a master manifest file to include the first sequence of media file locators from each periodically received manifest file, such that the master manifest file includes a master sequence of the media file locators that constitute the video stream;

upon request from a playback device, generating a targeted manifest file from the master sequence of media file locators that includes a second sequence of media file locators, wherein one or more media file locators of the master sequence of media file locators are substituted with a different number of targeted media file locators to generate the second sequence of media file locators of the targeted manifest file.

13. The computerized method of claim 12, wherein each periodically received manifest file includes a media sequence number that indicates a unique sequence number of a first media file locator in the first sequence of media file locators, the method further comprising:

determining a unique sequence number of each media file locator in the first sequence of media file locators based on the media sequence number of the received manifest file; and

updating the master manifest file to include the media file locators of the first sequence of media file locators that are missing from the master sequence of media file locators.

14. The computerized method of claim 12, wherein the received manifest file includes at least one informational tag that specifies a time duration of the media files identified by the media file locators of the first sequence of media file locators.

15. The computerized method of claim 14, wherein generating the master manifest file further includes assigning relative timestamps to each of the media file locators of the master sequence of media file locators based on the at least one informational tag.

16. The computerized method of claim 12 further comprising:

requesting a user profile associated with a user of a playback device; and

identifying the targeted media file locators for substitution based on at least one user characteristic of the user profile.

17. The computerized method of claim 12, wherein generating the targeted manifest file from the master sequence of media file locators further comprises:

substituting at least two media file locators of the master sequence of media file locators with a different number of targeted media file locators, wherein a combined time duration of the media files identified by the at least two media file locators of the master sequence of media file locators is substantially similar to a combined time duration of the media files identified by the different number of targeted media file locators.

18. The computerized method of claim 12, wherein generating the targeted manifest file from the master sequence of media file locators further comprises:

selecting the one or more media file locator of the master sequence of media file locators for substitution based on the content type of the media files identified by the one or more media file locators.

19. The computerized method of claim 12, wherein generating the targeted manifest file from the master sequence of media file locators further comprises:

requesting the targeted media file locators from one or more ad decision systems based on a combined time duration of the one or more media file locators that are selected for substitution.

20. The computerized method of claim 19, wherein generating the targeted manifest file from the master sequence of media file locators further comprises:

requesting the targeted media file locators from the one or more ad decision systems based on at least one user characteristic, group characteristic, content type or request time of day.

21. The computerized method of claim 19, wherein requesting the targeted media file locators further comprises:

receiving a target identifier that identifies a location of a target manifest file,

wherein the target manifest file includes the targeted media file locators.