PeerStreamer

    }

    while(den){

        int64_t next_den= nom - den*x;

        int64_t a2n= x*a1.num + a0.num;

        int64_t a2d= x*a1.den + a0.den;

            if(a1.num) x= (max - a0.num) / a1.num;

            if(a1.den) x= FFMIN(x, (max - a0.den) / a1.den);

            if (den*(2*x*a1.den + a0.den) > nom*a1.den)

                a1 = (AVRational){x*a1.num + a0.num, x*a1.den + a0.den};

            break;