US2014092953A1PendingUtilityA1

Method for signaling a step-wise temporal sub-layer access sample

58
Individually held — no corporate assignee on recordPriority: Oct 2, 2012Filed: Oct 2, 2012Published: Apr 3, 2014
Est. expiryOct 2, 2032(~6.2 yrs left)· nominal 20-yr term from priority
Inventors:Sachin G. Deshpande
H04N 21/234327H04N 21/234381H04N 21/2358H04N 19/172H04N 19/31H04N 1/31
58
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Claims

Abstract

An electronic device for encoding a picture is described. The electronic device includes a processor and instructions stored in memory that are in electronic communication with the processor. The instructions are executable to encode a step-wise temporal sub-layer access (STSA) sample grouping. The instructions are further executable to send and/or store the STSA sample grouping.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An electronic device for encoding a picture, comprising:
 a processor;   memory in electronic communication with the processor, wherein instructions stored in the memory are executable to:
 encode a step-wise temporal sub-layer access (STSA) sample grouping; and 
 send the STSA sample grouping. 
   
     
     
         2 . The electronic device of  claim 1 , wherein the instructions executable to send the STSA sample grouping further comprise instructions executable to store the STSA sample grouping in a recordable storage medium, and wherein the recordable storage medium is a file. 
     
     
         3 . The electronic device of  claim 1 , wherein the instructions executable to encode the STSA sample grouping further comprise instructions executable to encode the STSA sample grouping based on an ISO base media file format, wherein the ISO base media file format has been extended to support high efficiency video coding (HEVC) video streams, and wherein the instructions executable to send the STSA sample grouping further comprise instructions executable to send the STSA sample grouping in an ISO base media file format. 
     
     
         4 . The electronic device of  claim 1 , wherein the STSA sample grouping is sent in a sample group description box (SGPD). 
     
     
         5 . The electronic device of  claim 4 , wherein the SGPD includes one of a next STSA upswitching distance parameter, a next STSA sample distance parameter and a type temporal switching access (TSA) flag. 
     
     
         6 . The electronic device of  claim 5 , wherein the type TSA flag indicates that a sample in the STSA sample grouping is one of a TSA sample and a STSA sample. 
     
     
         7 . The electronic device of  claim 1 , wherein the STSA picture provides temporal layer switching functionality to a temporal layer for which the STSA picture belongs. 
     
     
         8 . An electronic device for decoding a picture, comprising:
 a processor;   memory in electronic communication with the processor, wherein instructions stored in the memory are executable to:
 receive one of a bitstream and a recordable storage medium; 
 obtain a step-wise temporal sub-layer access (STSA) sample grouping; 
 decode the STSA sample grouping; and 
 determine when to switch to a new temporal layer based on the STSA sample grouping. 
   
     
     
         9 . The electronic device of  claim 8 , wherein the recordable storage medium is a file. 
     
     
         10 . The electronic device of  claim 8 , wherein the instructions executable to receive the STSA sample grouping further comprise instructions executable to receive the STSA sample grouping in an ISO base media file, and wherein the instructions executable to decode the STSA sample grouping further comprise instructions executable to decode the STSA sample grouping based on an ISO base media file format, wherein the ISO base media file format has been extended to support high efficiency video coding (HEVC) video streams. 
     
     
         11 . The electronic device of  claim 8 , wherein the STSA sample grouping is sent in a sample group description box (SGPD). 
     
     
         12 . The electronic device of  claim 11 , wherein the SGPD includes one of a next STSA upswitching distance parameter, a next STSA sample distance parameter and a type temporal switching access (TSA) flag. 
     
     
         13 . The electronic device of  claim 12 , wherein the type TSA flag indicates that a sample in the STSA sample grouping is one of a TSA sample and a STSA sample. 
     
     
         14 . The electronic device of  claim 8 , wherein the STSA picture provides temporal layer switching functionality to a temporal layer for which the STSA picture belongs. 
     
     
         15 . A method for encoding a picture, comprising:
 encoding a step-wise temporal sub-layer access (STSA) sample grouping; and   sending the STSA sample grouping.   
     
     
         16 . The method of  claim 15 , wherein sending the STSA sample grouping further comprises storing the STSA sample grouping in a recordable storage medium, and wherein the recordable storage medium is a file. 
     
     
         17 . The method of  claim 15 , wherein encoding the STSA sample grouping further comprises encoding the STSA sample grouping based on an ISO base media file format, wherein the ISO base media file format has been extended to support high efficiency video coding (HEVC) video streams, and wherein the sending the STSA sample grouping further comprises sending the STSA sample grouping in an ISO base media file format. 
     
     
         18 . The method of  claim 15 , wherein the STSA sample grouping is sent in a sample group description box (SGPD). 
     
     
         19 . The method of  claim 18 , wherein the SGPD includes one of a next STSA upswitching distance parameter, a next STSA sample distance parameter and a type temporal switching access (TSA) flag. 
     
     
         20 . The method of  claim 19 , wherein the type TSA flag indicates that a sample in the STSA sample grouping is one of a TSA sample and a STSA sample.

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