Apparatus, system, and method for multi-bitrate content streaming

• US 8,683,066 B2
• Filed: 08/06/2007
• Issued: 03/25/2014
• Est. Priority Date: 08/06/2007
• Status: Active Grant

• Current Assignee: Dish Technologies LLC (Echostar Corporation)
• Original Assignee: Dish Digital LLC (Echostar Corporation)
• Inventors: Hurst, Mark B., Brueck, David F.
• Primary Examiner(s): Patel, Chirag R
• Assistant Examiner(s): COSBY, LAWRENCE V
• Application Number:
  US11/834,548
• Publication Number:
  US 20090043906A1
• Time in Patent Office: 2,423 Days
• Field of Search: 709/231, 709/232, 709/233, 709/234, 709/235, 375/240, 375/240.01, 375/240.02
• US Class Current: 709/231
• CPC Class Codes: H04L 65/70 Media network packetisation
• CPC Class Codes: H04N 21/23439 for generating different versions
• CPC Class Codes: H04N 21/2662 Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
• CPC Class Codes: H04N 21/4331 Caching operations, e.g. of an advertisement for later insertion during playback
• CPC Class Codes: H04N 21/4532 involving end-user characteristics, e.g. viewer profile, preferences monitoring of user activities for profile generation for accessing a video database G06F16/739; user profiles in network data switching protocols H04L67/306; processing of user preferences or user profiles in wireless networks H04W8/18
• CPC Class Codes: H04N 21/454 Content or additional data filtering, e.g. blocking advertisements
• CPC Class Codes: H04N 21/64769 for rate control flow control in packet networks H04L47/10
• CPC Class Codes: H04N 21/84 Generation or processing of descriptive data, e.g. content descriptors systems specially adapted for using meta-information in broadcast systems H04H60/73
• CPC Class Codes: H04N 21/8456 by decomposing the content in the time domain, e.g. in time segments

Abstract

An apparatus, system, and method for maintaining a programming lineup of adaptive-bitrate content streaming is provided. The apparatus includes a timeline module configured to maintain a programming lineup of media content available over a network. The media content may comprise a plurality of streamlets. The apparatus also includes at least one data module configured to maintain multi-bitrate streamlet information. The system includes the apparatus and a client module configured to acquire content based upon the programming lineup provided by the timeline module. The method includes maintaining a programming lineup of media content available over a network, and maintaining multi-bitrate streamlet information.

Claims

1. An apparatus for multi-bitrate video and/or audio content streaming, the apparatus comprising an end user station, comprising:

a content player, to be executed on the end user station, to playback videos, wherein each of the videos are encoded as a plurality of streamlets, wherein each of the plurality of streamlets is an encoded representation of a portion of one of the videos, and each streamlets representing each portion of one of the videos is encoded at a plurality of bitrates supported by the multi-bitrate content streaming;

a client module, to be executed on the end user station, coupled to the content player and to be coupled to a set of one or more servers over a network, wherein the client module is configured to request the streamlets for playback of the videos on the content player;

a timeline module to be executed on the end user station and configured to maintain a programming lineup of one or more of the videos, wherein the client module is configured to request the streamlets for playback of the one or more videos on the content player according to the programming lineup, wherein the timeline module is configured to maintain the programming lineup using information from a virtual timeline (VT) file anchored to a real-world time, wherein the VT file defines an order of playback of the one or more videos identified by one or more media extension (MX) files, wherein each of the one or more MX files describes a physical clip of video using multi-bitrate streamlet information, including location information of the streamlets of the respective physical clip of video and bitrate values of the streamlets of the respective physical clip of video, and wherein the client module is configured to use the location information of the one or more MX files when requesting the streamlets associated with the respective physical clip of video for playback on the content player,

wherein the client module requests the streamlets for playback of one of the plurality of bitrates supported by the multi-bitrate content streaming based upon a current read ahead margin and a minimum safety margin.

2. The apparatus of claim 1, wherein each of the streamlets is encapsulated as an independent media object, and wherein each of the portions has a predetermined duration of time.

3. The apparatus of claim 1, wherein multi-bitrate streamlet information is selected from the group consisting of start time, end time, live video, publisher data, encryption, duration, the bitrate values, frame size, channels, codecs, sample rate, and frames parser.

4. The apparatus of claim 1, wherein the client module is further configured to skip content of the one or more videos in response to a rating system.

5. The apparatus of claim 4, wherein the client module is configured to skip one or more of the streamlets that do not conform to a selected rating level.

6. The apparatus of claim 4, wherein the client module is configured to mute the audio of one or more of the streamlets that do not conform to a selected rating level.

7. The apparatus of claim 1, further comprising a content management system configured to modify the programming lineup by altering the VT file to reference additional content or different content than the one or more videos identified in the VT file before said altering.

8. The apparatus of claim 1, further comprising an anchor module configured to associate the start of the timeline module with the real-world time such that the client module can locate the one or more videos of the programming lineup.

27. The apparatus of claim 1, wherein the client module at the end user station requests a live video feed based upon the program lineup maintained by the timeline module.

9. A system for multi-bitrate video and/or audio content streaming, the system comprising:

a set of one or more servers configured to store videos, wherein each of the videos are encoded as a plurality of streamlets, wherein each of the streamlets is an encoded representation of a portion of one of the videos, and each streamlets representing each portion of one of the videos is encoded at a plurality of bitrates supported by the multi-bitrate content streaming; and

an end user station to be coupled to the set of one or more servers over a network to stream one or more of the videos, wherein the end user stations comprises;

a content player, to be executed on the end user station, to playback the streamed videos;

a timeline module to be executed on the end user station and configured to maintain a programming lineup of one or more of the videos, wherein the timeline module is configured to maintain the programming lineup using information from a virtual timeline (VT) file anchored to a real-world time, wherein the VT file defines an order of playback of the one or more videos identified by one or more media extension (MX) files, wherein each of the one or more MX files describes a physical clip of video using multi-bitrate streamlet information, including location information of the streamlets of the respective physical clip of video and bitrate values of the streamlets of the respective physical clip of video, and wherein the client module is configured to use the location information of the one or more MX files when requesting the streamlets associated with the respective physical clip of video; and

a client module, to be executed on the end user station, coupled to the content player and to be coupled to the set of one or more servers over the network, wherein the client module is configured to acquire the streamlets for playback of the one or more videos on the content player based upon the programming lineup provided by the timeline module, and wherein the client module is configured to use the location information of the one or more MX files when requesting the streamlets associated with the respective video for playback on the content player, wherein the client module requests the streamlets for playback of one of the plurality of bitrates supported by the multi-bitrate content streaming based upon a current read ahead margin and a minimum safety margin.

10. The system of claim 9, wherein each of the streamlets is encapsulated as an independent media object, and wherein each of the portions has a predetermined duration of time.

11. The system of claim 9, wherein multi-bitrate streamlet information is selected from the group consisting of start time, end time, live video, publisher data, encryption, duration, the bitrate values, frame size, channels, codecs, sample rate, and frames parser.

12. The system of claim 9, wherein the client module is further configured to skip one or more of the streamlets that do not conform to a selected rating level.

13. The system of claim 9, wherein the client module is configured to mute the audio of one or more of the streamlets that do not conform to a selected rating level.

14. The system of claim 9, further comprising a content management system configured to modify the programming lineup by altering the VT file to reference additional content or different content than the one or more videos identified in the VT file before said altering.

15. A method for multi-bitrate video and/or audio content streaming, the method comprising:

maintaining, by an end user station, a programming lineup of one or more of videos, wherein said maintaining comprises maintaining the programming lineup using information from a virtual timeline (VT) file that is anchored to a real-world time and that defines an order of playback of the one or more videos, wherein the VT file identifies the one or more videos using one or more media extension (MX) files;

maintaining, by the end user station, multi-bitrate streamlet information for each of the one or more videos in the one or more MX files, wherein the multi-bitrate streamlet information of each of the one or more MX files describes a physical clip of video, including location information of the streamlets of the respective physical clip of video and bitrate values of the streamlets of the respective physical clip of video;

requesting, by the end user station, one or more of the streamlets for playback of the one or more videos according to the programming lineup, a current read ahead margin, and a minimum safety margin, and wherein said requesting comprises requesting the one or more streamlets of one of the videos using the location information of the respective one of the MX files; and

presenting, by the end user station, the one or more videos according to the programming lineup by playing back on a content player the requested ones of the streamlets.

16. The method of claim 15, wherein the multi-bitrate streamlet information is selected from the group consisting of start time, end time, live video, publisher data, encryption, duration, the bitrate values, frame size, channels, codecs, sample rate, and frames parser.

17. The method of claim 15, further comprising skipping content of the one or more videos in response to a rating system.

18. The method of claim 17, further comprising skipping one or more of the streamlets that do not conform to a selected rating level.

19. The method of claim 15, further comprising muting the audio of one or more of the streamlets that do not conform to a selected rating level.

20. The method of claim 15, further comprising dynamically replacing portions of the one or more videos.

21. A computer program product comprising a computer useable non-transitory medium having a computer readable program, wherein the computer readable program when executed on a computer causes the computer to carry out operations for multi-bitrate content streaming, the operations comprising:

maintaining, by an end user station, a programming lineup of one or more of videos, wherein said maintaining comprises maintaining the programming lineup using information from a virtual timeline (VT) file that is anchored to a real-world time and that defines an order of playback of the one or more videos, wherein the VT file identifies the one or more videos using one or more media extension (MX) files;

maintaining, by the end user station, multi-bitrate streamlet information for each of the one or more videos in the one or more MX files, wherein the multi-bitrate streamlet information of each of the one or more MX files describes a physical clip of video, including location information of the streamlets of the respective physical clip of video and bitrate values of the streamlets of the respective physical clip of video;

requesting by the end user station, one or more of the streamlets for playback of the one or more videos according to the programming lineup, a current read ahead margin, and a minimum safety margin, and wherein said requesting comprises requesting the one or more streamlets of one of the videos using the location information of the respective one of the MX files; and

presenting by the end user station, the one or more videos according to the programming lineup by playing back on a content player the requested ones of the streamlets in order of ascending playback time.

22. The computer readable program of claim 21, wherein the operations further comprise skipping content of the one or more videos in response to a rating system.

23. The computer readable program of claim 22, wherein the operations further comprise skipping one or more of the streamlets that do not conform to a selected rating level.

24. The computer readable program of claim 21, wherein the operations further comprise muting the audio of one or more of the streamlets that do not conform to a selected rating level.

25. The computer readable program of claim 21, wherein the operations further comprise dynamically replacing portions of the one or more videos.

26. An apparatus for multi-bitrate content streaming, the apparatus comprising:

maintaining, at an end user station, a programming lineup of one or more of videos, wherein said maintaining comprises maintaining the programming lineup using information from a virtual timeline (VT) file that is anchored to a real-world time and that defines an order of playback of the one or more videos, wherein the VT file identifies the one or more videos using one or more media extension (MX) files;

means for maintaining, at the end user station, multi-bitrate streamlet information for each of the one or more videos in the one or more MX files, wherein the multi-bitrate streamlet information of each of the one or more MX files describes a physical clip of video, including location information of the streamlets of the respective physical clip of video and bitrate values of the streamlets of the respective physical clip of video;

means for requesting, at the end user station, one or more of the streamlets for playback of the one or more videos according to the programming lineup, a current read ahead margin, and a minimum safety margin, and wherein said requesting means requests the one or more streamlets of one of the videos using the location information of the respective one of the MX files; and

means for presenting, at the end user station, the one or more videos according to the programming lineup by playing back the requested ones of the streamlets in order of ascending playback time.