• Christophe Gisquet's avatar
    huffyuv: change statistics initialization · e7fc5d53
    Christophe Gisquet authored
    Normally, a Laplace distribution is more typical of the residuals
    encoded, but for noisy input, it's both better and simpler to be
    safe and use a 1/d^2 distribution. Second hunk could use some
    renormalization but it has effectively little impact.
    
    Output size of ffvhuff on various 4:2:0 sequences:
    context=0,1/d:    851974   27226   1137281
    context=0,1/d²:   619081   25069   1051500
    context=0,1/d³:   501983   30454   1290561
    context=0,lapl:   500650   31754   1304082
    Signed-off-by: 's avatarMichael Niedermayer <michaelni@gmx.at>
    e7fc5d53
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