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  • static void av_frac_add(AVFrac *f, int64_t incr)
    
        int64_t num, den;
    
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    Fabrice Bellard committed
    
        num = f->num + incr;
        den = f->den;
        if (num < 0) {
            f->val += num / den;
            num = num % den;
            if (num < 0) {
                num += den;
                f->val--;
            }
        } else if (num >= den) {
            f->val += num / den;
            num = num % den;
        }
        f->num = num;
    }