• Timothy B. Terriberry's avatar
    Add ec_smallmul experiment. · b1c5760e
    Timothy B. Terriberry authored
    This reduces the multiplier width of daala_ec from 16x15->31 to
    8x15->23, which reduces hardware latency by an estimated 20% (and
    area for this module by an estimated 40%).
    
    These are the smallest logical changes required to achieve this,
    but the approach will be optimized significantly in subsequent
    commits.
    
    When enabled:
    
    ec_smallmul1c_base@2017-03-08T00:49:01.830Z ->
     ec_smallmul1c@2017-03-08T00:49:45.091Z
    
      PSNR | PSNR Cb | PSNR Cr | PSNR HVS |   SSIM | MS SSIM | CIEDE 2000
    0.0203 |  0.0203 |  0.0204 |   0.0203 | 0.0203 |  0.0203 |     0.0202
    
    Change-Id: Idbbd3743e9189146cb519d5b984bdabd69e3f4c0
    b1c5760e
configure 24.6 KB