Decoder System For Decoding Multi-Standard Encoded Video

Abstract

Presented herein are a decoder system for decoding multi-standard encoded video. In one embodiment, there is presented a system for decoding video data. The system comprises an outer loop symbol interpreter and an inner loop symbol interpreter. The outer loop symbol interpreter decodes VC-1 syntax and AVC syntax, at a slice or picture level. The inner loop symbol interpreter decodes VC-1 and AVC syntax at a macroblock level.

1 . A system for decoding video data, said system comprising:
 a first symbol interpreter for decoding at a slice or picture level; and   a second symbol interpreter for decoding at a macroblock level.   
     
     
         2 . The system of  claim 1 , wherein the second symbol interpreter comprises:
 a coefficient constructor for constructing coefficients at the macroblock level.   
     
     
         3 . The system of  claim 1 , wherein the second symbol interpreter comprises:
 a vector constructor for constructing vectors at the macroblock level.   
     
     
         4 . The system of  claim 1 , wherein the second symbol interpreter comprises:
 variable length code engine for decoding variable length codes.   
     
     
         5 . The system of  claim 1 , wherein the first symbol interpreter comprises an outer loop symbol interpreter. 
     
     
         6 . The system of  claim 1 , wherein the second symbol interpreter comprises an inner loop symbol interpreter. 
     
     
         7 . The system of  claim 1 , further comprising:
 a slice descriptor buffer, the first symbol interpreter filling the slice descriptor buffer and the second symbol interpreter consuming the slice descriptor buffer prior to decoding macroblocks in a slice.   
     
     
         8 . A method for decoding video data, said system comprising:
 decoding video data at a slice or picture level at first symbol interpreter;   decoding video data at a macroblock level at second symbol interpreter;   decoding video data at the macroblock level at the second symbol interpreter.   
     
     
         9 . The method of  claim 8 , wherein decoding video data at the macroblock level comprises:
 constructing coefficients at the macroblock level at a coefficient constructor.   
     
     
         10 . The method of  claim 8 , wherein the decoding video data at the macroblock level comprises:
 constructing vectors at the macroblock level at a vector constructor.   
     
     
         11 . The method of  claim 8 , wherein the decoding video data at the macroblock level further comprises:
 variable length code engine for decoding variable length codes.   
     
     
         12 . The method of  claim 8 , wherein the first symbol interpreter comprises an outer loop symbol interpreter. 
     
     
         13 . The method of  claim 8 , wherein the second symbol interpreter comprises an inner loop symbol interpreter. 
     
     
         14 . The method of  claim 8 , further comprising:
 filling a slice descriptor buffer of a slice in an outer loop and consuming the slice descriptor buffer prior to decoding macroblocks of a slice in an inner loop.   
     
     
         15 . A system for decoding video data, said system comprising:
 a first symbol interpreter for decoding video data at a slice or picture level; and   a second symbol interpreter for decoding video data at a macroblock level.   
     
     
         16 . The system of  claim 15 , wherein the first symbol interpreter provides decoded picture header syntax elements to the second symbol interpreter. 
     
     
         17 . The system of  claim 15 , wherein the second symbol interpreter comprises:
 a vector constructor for constructing vectors at the macroblock level.   
     
     
         18 . The system of  claim 15 , wherein the second symbol interpreter comprises:
 a coefficient constructor for constructing coefficients at the macroblock level.   
     
     
         19 . The system of  claim 15 , wherein the second symbol interpreter comprises:
 a variable length code engine for decoding variable length codes.   
     
     
         20 . The system of  claim 15 , further comprising:
 a dslice descriptor buffer, the first symbol interpreter filling the slice descriptor buffer and the second symbol interpreter consuming the slice descriptor buffer prior to decoding macroblocks in a slice.