Segmented video codec for high resolution and high frame rate video

Abstract

Embodiments disclosed herein provide systems, methods, and computer readable media for a segmented video codec for high resolution and high frame rate video. In a particular embodiment, a method of encoding a composite video stream provides identifying a first portion of an image of a video stream for encoding using first parameters and a second portion of the image of the video stream for encoding using second parameters. The method further provides segmenting the first portion of the image into one or more first tiles and the second portion of the image into one or more second tiles. The method further provides encoding the first tiles using the first parameters and the second tiles using the second parameters and, after the encoding, combining the first tiles and the second tiles into the composite video stream.

What is claimed is: 
     
         1 . A method comprising:
 in a decoder system:
 receiving a composite video stream, wherein the composite video stream comprises a combination of one or more first tiles of an image of a video stream encoded using first parameters and one or more second tiles of the image of the video stream encoded using second parameters; 
 after the receiving, segmenting the composite video stream into the first and second tiles; 
 after the segmenting, decoding the first tiles based on the first parameters and decoding the second tiles based on the second parameters; and 
 after the decoding, combining the first tiles and the second tiles for display of the image of the video stream. 
   
     
     
         2 . the method of  claim 1 , comprising:
 receiving tile segment information associated with the composite video stream, wherein segmenting the composite video stream is performed based on the tile segment information.   
     
     
         3 . The method of  claim 1 , wherein the first parameters include a first frame rate that is higher than a second frame rate included in the second parameters. 
     
     
         4 . The method of  claim 1 , wherein the first parameters include a first resolution that is lower than a second resolution included in the second parameters. 
     
     
         5 . The method of  claim 1 , wherein the composite video stream is transmitted from an encoder system, wherein, before transmitting the encoder system, the encoder system encodes the first tiles using the first parameters and the second tiles using the second parameters, and then combines the first tiles and the second tiles into the composite video stream. 
     
     
         6 . An apparatus comprising:
 one or more computer readable storage media;   a processing system operatively coupled with the one or more computer readable storage media; and   program instructions stored on the one or more computer readable storage media that, when read and executed by the processing system, direct the apparatus to:
 receive a composite video stream, wherein the composite video stream comprises a combination of one or more first tiles of an image of a video stream encoded using first parameters and one or more second tiles of the image of the video stream encoded using second parameters; 
 after the composite video stream is received, segment the composite video stream into the first and second tiles; 
 after the composite video stream is segmented, decode the first tiles based on the first parameters and decode the second tiles based on the second parameters; and 
 after the first tiles and the second tiles are decoded, combine the first tiles and the second tiles for display of the image of the video stream. 
   
     
     
         7 . The apparatus of  claim 6 , wherein the program instructions direct the apparatus to:
 receive tile segment information associated with the composite video stream, wherein segmenting the composite video stream is performed based on the tile segment information.   
     
     
         8 . The apparatus of  claim 6 , wherein the first parameters include a first frame rate that is higher than a second frame rate included in the second parameters. 
     
     
         9 . The apparatus of  claim 6 , wherein the first parameters include a first resolution that is lower than a second resolution included in the second parameters. 
     
     
         10 . The apparatus of  claim 6 , wherein the program instructions direct the apparatus to:
 after the first tiles and the second tiles are combined, display the image of the video stream.   
     
     
         11 . A method comprising:
 in an encoder:
 identifying a first portion of an image of a video stream for encoding using first parameters and a second portion of the image of the video stream for encoding using second parameters; 
 segmenting the first portion of the image into one or more first tiles and the second portion of the image into one or more second tiles; 
 after the segmenting, encoding the first tiles using the first parameters and the second tiles using the second parameters; and 
 after the encoding, combining the first tiles and the second tiles into a composite video stream. 
   
     
     
         12 . The method of  claim 11 , wherein the first parameters include a first resolution that is lower than a second resolution included in the second parameters. 
     
     
         13 . The method of  claim 11 , wherein the first parameters include a first resolution that is lower than a second resolution included in the second parameters. 
     
     
         14 . The method of  claim 11 , comprising:
 transferring the composite video stream to a decoder system, wherein the decoder system decodes the composite video stream for display.   
     
     
         15 . The method of  claim 11 , comprising:
 transferring tile segment information to a decoder system using a supplemental enhancement information (SEI) message, wherein the decoder system decodes the composite video stream based on the tile segment information.   
     
     
         16 . An apparatus comprising:
 one or more computer readable storage media;   a processing system operatively coupled with the one or more computer readable storage media; and   program instructions stored on the one or more computer readable storage media that, when read and executed by the processing system, direct the apparatus to:
 identify a first portion of an image of a video stream for encoding using first parameters and a second portion of the image of the video stream for encoding using second parameters, wherein the first parameters comprise a first frame rate and a first resolution and the second parameters include a second frame rate and a second resolution; 
 segment the first portion of the image into one or more first tiles and the second portion of the image into one or more second tiles; 
 after the first portion and the second portion are segmented, encode the first tiles using the first parameters and the second tiles using the second parameters; and 
 after first tiles and the second tiles are encoded, combine the first tiles and the second tiles into a composite video stream. 
   
     
     
         17 . The apparatus of  claim 16 , wherein the first parameters include a first resolution that is lower than a second resolution included in the second parameters. 
     
     
         18 . The apparatus of  claim 16 , wherein the first parameters include a first resolution that is lower than a second resolution included in the second parameters. 
     
     
         19 . The apparatus of  claim 16 , wherein the program instructions direct the apparatus to:
 transfer the composite video stream to a decoder system, wherein the decoder system decodes the composite video stream for display.   
     
     
         20 . The apparatus of  claim 16 , wherein the program instructions direct the apparatus to:
 transfer tile segment information to a decoder system using a supplemental enhancement information (SEI) message, wherein the decoder system decodes the composite video stream based on the tile segment information.