• Yaowu Xu's avatar
    Use lossless for Q0 · 93d6b86c
    Yaowu Xu authored
    The commit changes the coding mode to lossless whenever the lowest
    quantizer is choosen.
    
    As expected, test results showed no difference for cif and std-hd
    set where Q0 is rarely used. For yt and yt-hd set, Q0 is used for
    a number of clips, where this commit helped a lot in the high end.
    
    Average over all clips in the sets:
    yt: 2.391% 1.017% 1.066%
    hd: 1.937%  .764%  .787%
    
    Change-Id: I9fa9df8646fd70cb09ffe9e4202b86b67da16765
    93d6b86c
vp9_encodeframe.c 91.8 KB