VIDEO PARAMETER SET FOR HEVC AND EXTENSIONS

• US 20140003491A1
• Filed: 07/01/2013
• Published: 01/02/2014
• Est. Priority Date: 07/02/2012
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Chen, Ying, Wang, Ye-Kui
• Granted Patent: US 9,602,827 B2
• Time in Patent Office: Days
• US Class Current: 375/240.02
• CPC Class Codes: H04N 19/117 Filters, e.g. for pre-processing or post-processing sub-band filter banks H04N19/635
• CPC Class Codes: H04N 19/124 Quantisation
• CPC Class Codes: H04N 19/13 Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
• CPC Class Codes: H04N 19/184 the unit being bits, e.g. of the compressed video stream
• CPC Class Codes: H04N 19/30 using hierarchical techniques, e.g. scalability H04N19/63 takes precedence
• CPC Class Codes: H04N 19/51 Motion estimation or motion compensation
• CPC Class Codes: H04N 19/597 specially adapted for multi-view video sequence encoding
• CPC Class Codes: H04N 19/61 in combination with predictive coding
• CPC Class Codes: H04N 19/70 characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

A video processing device can be configured to process one or more initial syntax elements for a parameter set associated with a video bitstream; receive in the parameter set an offset syntax element for the parameter set that identifies syntax elements to be skipped within the parameter set; and based on the offset syntax element, skip the syntax elements within the parameter set and process one or more additional syntax elements in the parameter set that are after the skipped syntax elements in the parameter set.

Claims

1. A method of processing video data, the method comprising:

processing one or more initial syntax elements for a parameter set associated with a video bitstream;

receiving in the parameter set an offset syntax element for the parameter set, wherein the offset syntax element identifies syntax elements to be skipped within the parameter set;

based on the offset syntax element, skipping the syntax elements within the parameter set;

processing one or more additional syntax elements in the parameter set, wherein the one or more additional syntax elements are after the skipped syntax elements in the parameter set.

2. The method of claim 1, wherein the syntax elements to be skipped comprise one or more syntax elements coded using variable length coding.

3. The method of claim 1, wherein the offset syntax element identifies the syntax elements to be skipped by identifying a number of bytes in the parameter set that are to be skipped.

4. The method of claim 1, wherein the one or more initial syntax elements comprise fixed-length syntax elements and wherein the one or more initial syntax elements precede the offset syntax element.

5. The method of claim 4, wherein the one or more additional syntax elements comprise additional fixed-length syntax elements and wherein the one or more additional syntax elements follow the offset syntax element and follow the skipped syntax elements.

6. The method of claim 1, wherein the one or more initial syntax elements comprise syntax elements including information related to session negotiation.

7. The method of claim 1, wherein the one or more initial syntax elements comprise syntax elements for a base layer of video data and the one or more additional syntax elements comprises syntax elements for a non-base layer of video data.

8. The method of claim 1, wherein the offset syntax element is part of a video parameter set.

9. The method of claim 1, wherein the processing is performed by a media aware network element (MANE), and wherein the method further comprises forwarding the video data to a client device.

10. A method of processing video data, the method comprising:

generating one or more initial syntax elements for a parameter set associated with a video bitstream;

generating an offset syntax element for the parameter set, wherein the offset syntax element identifies a number of syntax elements to be skipped within the parameter set;

generating the syntax elements to be skipped;

generating one or more additional syntax elements in the parameter set, wherein the one or more additional syntax elements are after the syntax elements to be skipped in the parameter set.

11. The method of claim 10, wherein the syntax elements to be skipped comprise one or more syntax elements coded using variable length coding.

12. The method of claim 10, wherein the offset syntax element identifies the syntax elements to be skipped by identifying a number of bytes in the parameter set that are to be skipped.

13. The method of claim 10, wherein the one or more initial syntax elements comprise fixed-length syntax elements and wherein the one or more initial syntax elements precede the offset syntax element.

14. The method of claim 13, wherein the one or more additional syntax elements comprise additional fixed-length syntax elements and wherein the one or more additional syntax elements follow the offset syntax element and follow the syntax elements to be skipped.

15. The method of claim 10, wherein the one or more initial syntax elements comprise syntax elements including information related to session negotiation.

16. The method of claim 10, wherein the one or more initial syntax elements comprise syntax elements for a base layer of video data and the one or more additional syntax elements comprises syntax elements for a non-base layer of video data.

17. The method of claim 10, wherein the offset syntax element is part of a video parameter set.

18. The method of claim 10, wherein the method is performed by a video encoder.

19. The method of claim 10, wherein the method is performed by a post processing device configured to process encoded video data.

20. A method of decoding video data, the method comprising:

decoding one or more initial syntax elements for a parameter set associated with a video bitstream;

receiving in the video bitstream an offset syntax element for the parameter set, wherein the offset syntax element identifies syntax elements to be skipped within the parameter set;

decoding the syntax elements to be skipped.

21. The method of claim 20, wherein the syntax elements to be skipped comprise one or more variable length syntax elements, and wherein decoding the syntax elements to be skipped comprises performing an entropy decoding process.

22. A video processing device comprising:

a video processing element configured to process one or more initial syntax elements for a parameter set associated with a video bitstream;

receive in the parameter set an offset syntax element for the parameter set, wherein the offset syntax element identifies syntax elements to be skipped within the parameter set;

based on the offset syntax element, skip the syntax elements within the parameter set; and

process one or more additional syntax elements in the parameter set, wherein the one or more additional syntax elements are after the skipped syntax elements in the parameter set.

23. The video processing device of claim 22, wherein the syntax elements to be skipped comprise one or more syntax elements coded using variable length coding.

24. The video processing device of claim 22, wherein the offset syntax element identifies the syntax elements to be skipped by identifying a number of bytes in the parameter set that are to be skipped.

25. The video processing device of claim 22, wherein the one or more initial syntax elements comprise fixed-length syntax elements and wherein the one or more initial syntax elements precede the offset syntax element.

26. The video processing device of claim 25, wherein the one or more additional syntax elements comprise additional fixed-length syntax elements and wherein the one or more additional syntax elements follow the offset syntax element and follow the skipped syntax elements.

27. The video processing device of claim 22, wherein the one or more initial syntax elements comprise syntax elements including information related to session negotiation.

28. The video processing device of claim 22, wherein the one or more initial syntax elements comprise syntax elements for a base layer of video data and the one or more additional syntax elements comprises syntax elements for a non-base layer of video data.

29. The video processing device of claim 22, wherein the offset syntax element is part of a video parameter set.

30. The device of claim 22, wherein the device comprises at least one of:

an integrated circuit;

a microprocessor; and

,

a wireless communication device that comprises a video decoder.

31. A video processing device comprising:

a video processing element configured to generate one or more initial syntax elements for a parameter set associated with a video bitstream;

generate an offset syntax element for the parameter set, wherein the offset syntax element identifies a number of syntax elements to be skipped within the parameter set;

generate the syntax elements to be skipped;

generate one or more additional syntax elements in the parameter set, wherein the one or more additional syntax elements are after the syntax elements to be skipped in the parameter set.

32. The video processing device of claim 31, wherein the syntax elements to be skipped comprise one or more syntax elements coded using variable length coding.

33. The video processing device of claim 31, wherein the offset syntax element identifies the syntax elements to be skipped by identifying a number of bytes in the parameter set that are to be skipped.

34. The method of claim 31, wherein the one or more initial syntax elements comprise fixed-length syntax elements and wherein the one or more initial syntax elements precede the offset syntax element.

35. The video processing device of claim 34, wherein the one or more additional syntax elements comprise additional fixed-length syntax elements and wherein the one or more additional syntax elements follow the offset syntax element and follow the syntax elements to be skipped.

36. The video processing device of claim 31, wherein the one or more initial syntax elements comprise syntax elements including information related to session negotiation.

37. The video processing device of claim 31, wherein the one or more initial syntax elements comprise syntax elements for a base layer of video data and the one or more additional syntax elements comprises syntax elements for a non-base layer of video data.

38. The video processing device of claim 31, wherein the offset syntax element is part of a video parameter set.

39. The video processing device of claim 31, wherein the video processing element comprises a video encoder.

40. The video processing device of claim 31, wherein the video processing device comprises a post processing device configured to process encoded video data.

41. The device of claim 31, wherein the device comprises at least one of:

an integrated circuit;

a microprocessor; and

,

a wireless communication device that comprises a video decoder.

42. A video processing device comprising:

a video processing element configured to decode one or more initial syntax elements for a parameter set associated with a video bitstream;

receive in the video bitstream an offset syntax element for the parameter set, wherein the offset syntax element identifies syntax elements to be skipped within the parameter set; and

decode the syntax elements to be skipped.

43. The video processing device of claim 42, wherein the syntax elements to be skipped comprise one or more variable length syntax elements, and wherein decoding the syntax elements to be skipped comprises performing an entropy decoding process.

44. The device of claim 42, wherein the device comprises at least one of:

an integrated circuit;

a microprocessor; and

,

a wireless communication device that comprises a video decoder.

45. A video processing device comprising:

means for processing one or more initial syntax elements for a parameter set associated with a video bitstream;

means for receiving in the parameter set an offset syntax element for the parameter set, wherein the offset syntax element identifies syntax elements to be skipped within the parameter set;

means for skipping the syntax elements within the parameter set based on the offset syntax element;

means for processing one or more additional syntax elements in the parameter set, wherein the one or more additional syntax elements are after the skipped syntax elements in the parameter set.

46. A computer readable storage medium storing instructions that when executed cause one or more processors to:

process one or more initial syntax elements for a parameter set associated with a video bitstream;

receive in the parameter set an offset syntax element for the parameter set, wherein the offset syntax element identifies syntax elements to be skipped within the parameter set;

skip the syntax elements within the parameter set based on the offset syntax element;

process one or more additional syntax elements in the parameter set, wherein the one or more additional syntax elements are after the skipped syntax elements in the parameter set.

47. The computer-readable storage medium of claim 46, wherein the syntax elements to be skipped comprise one or more syntax elements coded using variable length coding.

48. The computer-readable storage medium of claim 46, wherein the offset syntax element identifies the syntax elements to be skipped by identifying a number of bytes in the parameter set that are to be skipped.

49. The computer-readable storage medium of claim 46, wherein the one or more initial syntax elements comprise fixed-length syntax elements and wherein the one or more initial syntax elements precede the offset syntax element.

50. The computer-readable storage medium of claim 49, wherein the one or more additional syntax elements comprise additional fixed-length syntax elements and wherein the one or more additional syntax elements follow the offset syntax element and follow the skipped syntax elements.

51. The computer-readable storage medium of claim 46, wherein the one or more initial syntax elements comprise syntax elements including information related to session negotiation.

52. The computer-readable storage medium of claim 46, wherein the one or more initial syntax elements comprise syntax elements for a base layer of video data and the one or more additional syntax elements comprises syntax elements for a non-base layer of video data.

53. The computer-readable storage medium of claim 46, wherein the offset syntax element is part of a video parameter set.

54. The computer-readable storage medium of claim 46 storing further instructions that when executed cause the one or more processors to forward the video data to a client device.