• Jingning Han's avatar
    Forward butterfly hybrid transform · babbd5d1
    Jingning Han authored
    This patch includes 4x4, 8x8, and 16x16 forward butterfly ADST/DCT
    hybrid transform. The kernel of 4x4 ADST is sin((2k+1)*(n+1)/(2N+1)).
    The kernel of 8x8/16x16 ADST is of the form sin((2k+1)*(2n+1)/4N).
    
    Change-Id: I8f1ab3843ce32eb287ab766f92e0611e1c5cb4c1
    babbd5d1
vpxenc.c 85.8 KB