x266 - open H.266 codec reference implementation

x266 is an open source highly optimal software/hardware co-design architecture implementation of the next generation H.266 video codec.

It is demonstration research of industrialized implement video coding H.266. as soon as H.266 specification release, I will publishing my industrialize H.266 codec.

x266 based on Software/Hardware Cooperative concept and custom RISC-V processor with audio/video/image/deep_learning SIMD extension.

Building

• RISC-V
  
  • Build:
    
    • build risv
      
    • build rtl_risv
      
  • Verify:
    
    • ./run_asm.sh risv
      
    • ./run_bmark.sh risv
      

Performance

Ver	FPGA / ASIC	LUT / Area	MHz
0.3.1	XC7Z030	2,203	159.0
0.3.1	XCZU9EG	2,207	245.3
0.3	130 nm	0.64 mm^2	400.0

| Case | rdcycle | rdinstret | CPI | | :-------: | --------: | ------: | ---: | | median | 7,334 | 5,256 | 1.40 | | multiply | 43,514 | 26,911 | 1.62 | | qsort | 213,491 | 158,322 | 1.35 | | towers | 6,821 | 5,293 | 1.29 | | vvadd | 4,511 | 2,709 | 1.67 | | rsort | 305,357 | 177,314 | 1.72 | | spmv | 1,039,346 | 776,241 | 1.34 | | :-------: | --------: | ------: | ---: | | Total | 1,620,374 | 1,152,046 | 1.41 |

Prebuilt

• C/C++ interface code can be obtained from /src_c
  
• Verilog code can be obtained from /src_ver
  

Note

• The x266's RISC-V NON-Standard Vector Extension ONLY compile and disassembly by x266 project modified llvm suite. You may build bu yourself or please contract to get prebuilt Centos-6 binary package.

License

x266 is distributed under the terms of the Private/Education ONLY License. See COPYRIGHT for more details.

See LICENSE.TXT for more details.

Creator on November 2015
Copyright (c) 2015-2017 Min Chen
Contact: Min Chen <chenm003@{163, gmail}.com>