VIDEO STREAM

• US 20140010289A1
• Filed: 07/09/2012
• Published: 01/09/2014
• Est. Priority Date: 07/09/2012
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Derek Lukasik
• Inventors: Walls, Jeffrey Joel, LUKASIK, DEREK, Nylund, Mark Edward, Novaes, Reynaldo Cardoso, Roisenberg, Paulo, Prauchner, Joao Luis, Krauthein, Adriano Silveira
• Granted Patent: US 9,426,476 B2
• Time in Patent Office: Days
• US Class Current: 375/240.08
• CPC Class Codes: H04N 19/119 Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• CPC Class Codes: H04N 19/12 Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
• CPC Class Codes: H04N 19/136 Incoming video signal characteristics or properties
• CPC Class Codes: H04N 19/172 the region being a picture, frame or field

Abstract

An example system can comprise a memory to store machine readable instructions. The system can also comprise a processing unit to execute the machine readable instructions. The machine readable instructions can a server can comprise a codec selector to dynamically partition a video stream into a plurality of partitions based on graphical elements of the video stream, such that a given frame of the video stream is divided into the plurality of partitions. The codec selector can also select a plurality of different codecs to compress the plurality of partitions based on the graphical elements of the video stream.

Claims

1. A system comprising:

a memory to store machine readable instructions; and

a processing unit to access the memory and execute the machine readable instructions, the machine readable instructions comprising;

a server comprising a codec selector to;

dynamically partition a video stream into a plurality of partitions based on graphical elements of the video stream, such that a given frame of the video stream is divided into the plurality of partitions; and

select a plurality of different codecs to compress the plurality of partitions based on the graphical elements of the video stream.

2. The system of claim 1, wherein the video stream represents a real-time desktop associated with the server.

3. The system of claim 1, wherein the server further comprises a codec mapper to merge a plurality of compressed partitions corresponding to the plurality of partitions to generate a compressed video stream.

4. The system of claim 3, wherein the compressed video stream comprises:

mapping data that characterizes a compression format of each of the plurality of compressed partitions; and

boundary data that characterizes a boundary of each compressed partition of the compressed video stream.

5. The system of claim 4, wherein the codec selector is further to label each partition of the plurality of partitions based on a selected codec corresponding to a respective partition.

6. The system of claim 5, wherein the server further comprises the plurality of codecs, a given codec of the plurality of codecs to compress a given partition of the plurality of partitions into a given compression format and another codec of the plurality of codecs to compress another partition of the plurality of partitions into another compression format.

7. The system of claim 4, wherein the codec selector is further to employ a hierarchy of heuristics to select a given codec of the plurality of codecs for a given partition of the plurality of partitions.

8. The system of claim 7, wherein a given heuristic of the hierarchy of heuristics comprises an examination of commands employed to generate a graphical element in the given partition of the plurality of partitions.

9. The system of claim 7, wherein a given heuristic of the hierarchy comprises an examination of a number of colors employed generate a graphical element in the given partition of the video stream.

10. The system of claim 1, wherein the codec selector comprises a plurality of application programming interfaces that each interfaces with a component of the system employed to facilitate generation of the graphical elements of the video stream, such that a respective application programming interface is to determine a boundary of each partition of the plurality of partitions in the video stream.

11. The system of claim 1, wherein a given partition of the plurality of partitions contains a text document and another partition of the plurality of partitions contains one of a full-motion video and a three-dimensional (3-D) graphical element.

12. The system of claim 1, wherein the codec selector is further to:

periodically re-partition the video stream into another plurality of partitions based on graphical elements of the video stream at a time of the periodic re-partitioning, such that another frame of the video stream is divided into the another plurality of partitions; and

select a plurality of different codecs to compress the another plurality of partitions based on the graphical elements of the video stream at a time of the periodic re-partitioning.

13. A method comprising:

analyzing a video stream that characterizes a series of successive frames of video to select a boundary of a plurality of partitions of the video stream, wherein the boundary of each partition of the plurality of partitions is based on characteristics of a graphical element within a respective partition of the plurality of partitions;

assigning each partition of the plurality of partitions to a given one of a plurality of codecs, such that at least two partitions of the plurality of partitions are assigned to different codecs of the plurality of codecs;

receiving a compressed partition from each of the plurality of codecs; and

generating a compressed video stream, the compressed video stream comprising;

each of the compressed partitions; and

mapping data that characterizes a compression format of each of the compressed partitions.

14. The method of claim 13, further comprising:

providing the compressed video stream to a client over a network; and

decompressing the compressed video stream at the client based on the mapping data.

15. A non-transitory computer readable medium to store machine readable instructions, the machine readable instructions comprising:

a server comprising;

a client interface to process a request for a video stream comprising a plurality of successive frames provided from a client computer via a network;

a codec selector comprising;

a plurality of application programming interfaces (APIs) each API to;

monitor a component of a system control that facilitates generation of graphical elements in the video stream; and

identify a partition of the video stream that provides a type of graphical element;

a plurality of codecs, each codec to;

receive a partition of the video stream; and

compress the received partition of the video stream to provide a compressed partition; and

a codec mapper to merge each compressed partition to provide a compressed video stream to the client interface, wherein a given frame of the compressed video stream is compressed with multiple encoding schemes;

wherein the compressed video stream comprises;

each of the compressed partitions;

mapping data that characterizes a compression format of each of the compressed partitions; and

boundary data that characterizes a boundary of each of the compressed partitions;

wherein the client interface is further to provide the compressed video stream to the client computer in response to the request for the video stream.