Conveyance of Concatenation Properties and Picture Orderness in a Video Stream

• US 20090100482A1
• Filed: 10/16/2008
• Published: 04/16/2009
• Est. Priority Date: 10/16/2007
• Status: Abandoned Application

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Rodriguez, Arturo A., Au, James
• Application Number:
  US12/252,632
• Publication Number:
  US 20090100482A1
• Time in Patent Office: Days
• US Class Current: 725/105
• CPC Class Codes: H04N 21/23424 involving splicing one content stream with another content stream, e.g. for inserting or substituting an advertisement
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/23614 Multiplexing of additional data and video streams arrangements for simultaneous broadcast of plural pieces of information H04H20/28
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/44016 involving splicing one content stream with another content stream, e.g. for substituting a video clip
• CPC Class Codes: H04N 21/812 involving advertisement data advertising per se G06Q30/02

Abstract

Systems and methods that provide a video stream including a first video sequence followed by a second video sequence, and that provide a first information in the video stream pertaining to pictures in the first video sequence, wherein the location of the first information provided in the video stream is in relation to a second information in the video stream, wherein the second information pertains to the end of the first video sequence, wherein the first information in the video stream corresponds to a first information type and the second information in the video stream corresponds to a second information type different than the first information type, and wherein the first information corresponds to auxiliary information.

Claims

1. A method, comprising:

providing a video stream including a first video sequence followed by a second video sequence; and

providing a first information in the video stream pertaining to pictures in the first video sequence, wherein the location of the first information provided in the video stream is in relation to a second information in the video stream, wherein the second information pertains to the end of the first video sequence, wherein the first information in the video stream corresponds to a first information type and the second information in the video stream corresponds to a second information type different than the first information type, and wherein the first information corresponds to auxiliary information.

2. The method of claim 1, wherein the first information in the video stream pertaining to pictures in the first video sequence corresponds to the output time for one or more decoded pictures corresponding to the first video sequence.

3. The method of claim 2, wherein the first information further pertains to pictures in the second video sequence.

4. The method of claim 3, wherein the first information corresponds to a transition of outputting one or more decoded pictures of the first video sequence and decoding an equal number of one or more coded pictures from the second video sequence.

5. The method of claim 2, wherein the output times for the one or more pictures corresponds to consecutive picture output times.

6. The method of claim 1, wherein the second information pertaining to the end of the first video sequence is effective prior to the first picture in the second video sequence that follows the last picture of the first video sequence.

7. The method of claim 1, wherein the location of the second information pertaining to the end of the first video sequence is signaled in the video stream with a third information prior to the second information.

8. The method of claim 7, wherein the third information corresponds to the first information type.

9. The method of claim 1, wherein the sum of the compressed picture buffer delay and the decoded picture buffer delay corresponding to the second video sequence is less than the sum of the compressed picture buffer delay and the decoded picture buffer delay corresponding to the first video sequence.

10. The method of claim 1, further comprising providing a fourth information in the video stream pertaining to whether decoded pictures corresponding to the first video sequence should be output.

11. The method of claim 10, wherein the presence of the fourth information in the video stream affects a set of inference rules that would otherwise be effective without its presence.

12. A method, comprising:

providing a first information in a video stream, wherein the video stream includes a first video sequence followed by a second video sequence; and

providing a second information in the video stream, wherein the second information specifies the output behavior of a first set of decoded pictures corresponding to the first video sequence, wherein a second set of pictures of the second video sequence corresponds to the first set of decoded pictures of the first video sequence, wherein the first information in the video stream corresponds to the end of the first video sequence.

13. The method of claim 12, wherein the first information is provided after the end of the first video sequence.

14. The method of claim 13, wherein the second set of pictures of the second video sequence corresponds to pictures that enter a compressed picture buffer while the first set of decoded pictures of the first video sequence are output.

15. The method of claim 13, wherein the second information specifies repeating the output of at least one decoded picture corresponding to the first video sequence.

16. A method, comprising:

providing a video stream; and

providing a first information associated with the video stream, the first information pertaining to the maximum number of out of order pictures following a first type of picture in the video stream, the maximum number of out of order pictures effective when the video stream is processed in a first processing mode.

17. The method of claim 16, wherein the first type of picture corresponds to an intracoded picture.

18. The method of claim 16, wherein the first type of picture corresponds to a forward predicted picture, said forward predicted picture only referencing pictures that are intracoded pictures or other forward predicted pictures.

19. The method of claim 16, wherein the first processing mode corresponds to a low delay mode.

20. The method of claim 16, wherein the first type of picture corresponds to a set of pictures in the first processing mode that are output in the same order as they are decoded.

21. The method of claim 20, wherein the maximum number of pictures corresponds to the maximum number of pictures that are not output in the same order as they are decoded.