Adapting video stream for error resilience

Abstract

Adapting characteristics of a video stream. A video stream is received, at a video adaptation device, which employs a first reference frame. A determination is made, at a video adaptation device, to splice the video stream to employ a second reference frame in place of the first reference frame. The video stream is spliced, at a video adaptation device, to create a spliced video stream that employs the second reference frame.

1 . A method for adapting characteristics of a video stream, the method comprising:
 receiving a video stream, at a video adaptation device, which employs a first reference frame;   making a determination, at said video adaptation device, to splice said video stream to employ a second reference frame in place of said first reference frame; and   splicing said video stream, at said video adaptation device, to create a spliced video stream that employs said second reference frame.   
     
     
         2 . The method of  claim 1 , further comprising:
 producing said spliced video stream, at a video adaptation device, to a client device to employ said spliced video stream with said second reference frame, wherein a copy of said second reference frame is stored at said client device.   
     
     
         3 . The method of  claim 1  wherein said splicing comprises replacing a compressed slice with a replacement compressed slice. 
     
     
         4 . The method of  claim 3  wherein said splicing comprises adjusting a frame number of said replacement compressed slice to match a frame number of said compressed slice. 
     
     
         5 . The method of  claim 3  wherein said splicing comprises adjusting said replacement compressed slice to change a position of said second reference frame in a reference frame buffer. 
     
     
         6 . The method of  claim 1  wherein said spliced video stream conforms to a video standard. 
     
     
         7 . The method of  claim 1  wherein said splicing comprises incorporating compression parameters into said spliced video stream. 
     
     
         8 . The method of  claim 1  wherein said splicing comprises encoding a slice of said video stream using said second reference frame. 
     
     
         9 . The method of  claim 1  wherein said making said determination is completed upon receiving a command to make said determination. 
     
     
         10 . The method of  claim 1  wherein said making said determination comprises receiving an error message regarding said first reference frame. 
     
     
         11 . The method of  claim 1  wherein said splicing said video stream comprises retrieving said second reference frame from a buffer associated with said video adaptation device. 
     
     
         12 . A non transitory computer-usable storage medium having instructions embodied therein that when executed cause a computer system to perform a method for adapting characteristics of a video stream, said method comprising:
 receiving a video stream which employs a first reference frame;   making a determination to splice said video stream to employ a second reference frame in place of said first reference frame; and   splicing said video stream to create a spliced video stream that employs said second reference frame.   
     
     
         13 . The non transitory computer-usable storage medium of  claim 12 , further comprising:
 producing said spliced video stream, at a video adaptation device, to a client device to employ said spliced video stream with said second reference frame, wherein a copy of said second reference frame is stored at said client device.   
     
     
         14 . The non transitory computer-usable storage medium of  claim 12  wherein said spliced video streams conforms to a video standard. 
     
     
         15 . The non transitory computer-usable storage medium of  claim 12  wherein said splicing comprises incorporating compression parameters into said spliced video stream. 
     
     
         16 . The non transitory computer-usable storage medium of  claim 12  wherein said splicing comprises encoding a slice of said video stream using said second reference frame. 
     
     
         17 . The non transitory computer-usable storage medium of  claim 12  wherein said making said determination is completed upon receiving a command to make said determination. 
     
     
         18 . The non transitory computer-usable storage medium of  claim 12  wherein said making said determination comprises receiving an error message regarding said first reference frame. 
     
     
         19 . The non transitory computer-usable storage medium of  claim 12  wherein said splicing said video stream comprises retrieving said second reference frame from a buffer associated with said video adaptation device. 
     
     
         20 . A system for adapting a video stream, said system comprising:
 a video adaptation device configured to receive video stream which employs a first reference frame and to make a determination to splice said video stream with a second reference frame in place of said first reference frame;   a buffer configured to store said more than one reference frames; and   a splicer configured to create a spliced video stream that employs said second reference frame.