diff options
Diffstat (limited to 'libavutil/rational.c')
| -rw-r--r-- | libavutil/rational.c | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/libavutil/rational.c b/libavutil/rational.c index cab443818a..35ee08877f 100644 --- a/libavutil/rational.c +++ b/libavutil/rational.c @@ -182,119 +182,3 @@ uint32_t av_q2intfloat(AVRational q) { return sign<<31 | (150-shift)<<23 | (n - (1<<23)); } - -#ifdef TEST - -#include "integer.h" - -int main(void) -{ - AVRational a,b,r; - int i,j,k; - static const int64_t numlist[] = { - INT64_MIN, INT64_MIN+1, INT64_MAX, INT32_MIN, INT32_MAX, 1,0,-1, - 123456789, INT32_MAX-1, INT32_MAX+1LL, UINT32_MAX-1, UINT32_MAX, UINT32_MAX+1LL - }; - - for (a.num = -2; a.num <= 2; a.num++) { - for (a.den = -2; a.den <= 2; a.den++) { - for (b.num = -2; b.num <= 2; b.num++) { - for (b.den = -2; b.den <= 2; b.den++) { - int c = av_cmp_q(a,b); - double d = av_q2d(a) == av_q2d(b) ? - 0 : (av_q2d(a) - av_q2d(b)); - if (d > 0) d = 1; - else if (d < 0) d = -1; - else if (d != d) d = INT_MIN; - if (c != d) - av_log(NULL, AV_LOG_ERROR, "%d/%d %d/%d, %d %f\n", a.num, - a.den, b.num, b.den, c,d); - r = av_sub_q(av_add_q(b,a), b); - if(b.den && (r.num*a.den != a.num*r.den || !r.num != !a.num || !r.den != !a.den)) - av_log(NULL, AV_LOG_ERROR, "%d/%d ", r.num, r.den); - } - } - } - } - - for (i = 0; i < FF_ARRAY_ELEMS(numlist); i++) { - int64_t a = numlist[i]; - - for (j = 0; j < FF_ARRAY_ELEMS(numlist); j++) { - int64_t b = numlist[j]; - if (b<=0) - continue; - for (k = 0; k < FF_ARRAY_ELEMS(numlist); k++) { - int64_t c = numlist[k]; - int64_t res; - AVInteger ai; - - if (c<=0) - continue; - res = av_rescale_rnd(a,b,c, AV_ROUND_ZERO); - - ai = av_mul_i(av_int2i(a), av_int2i(b)); - ai = av_div_i(ai, av_int2i(c)); - - if (av_cmp_i(ai, av_int2i(INT64_MAX)) > 0 && res == INT64_MIN) - continue; - if (av_cmp_i(ai, av_int2i(INT64_MIN)) < 0 && res == INT64_MIN) - continue; - if (av_cmp_i(ai, av_int2i(res)) == 0) - continue; - - // Special exception for INT64_MIN, remove this in case INT64_MIN is handled without off by 1 error - if (av_cmp_i(ai, av_int2i(res-1)) == 0 && a == INT64_MIN) - continue; - - av_log(NULL, AV_LOG_ERROR, "%"PRId64" * %"PRId64" / %"PRId64" = %"PRId64" or %"PRId64"\n", a,b,c, res, av_i2int(ai)); - } - } - } - - for (a.num = 1; a.num <= 10; a.num++) { - for (a.den = 1; a.den <= 10; a.den++) { - if (av_gcd(a.num, a.den) > 1) - continue; - for (b.num = 1; b.num <= 10; b.num++) { - for (b.den = 1; b.den <= 10; b.den++) { - int start; - if (av_gcd(b.num, b.den) > 1) - continue; - if (av_cmp_q(b, a) < 0) - continue; - for (start = 0; start < 10 ; start++) { - int acc= start; - int i; - - for (i = 0; i<100; i++) { - int exact = start + av_rescale_q(i+1, b, a); - acc = av_add_stable(a, acc, b, 1); - if (FFABS(acc - exact) > 2) { - av_log(NULL, AV_LOG_ERROR, "%d/%d %d/%d, %d %d\n", a.num, - a.den, b.num, b.den, acc, exact); - return 1; - } - } - } - } - } - } - } - - for (a.den = 1; a.den < 0x100000000U/3; a.den*=3) { - for (a.num = -1; a.num < (1<<27); a.num += 1 + a.num/100) { - float f = av_int2float(av_q2intfloat(a)); - float f2 = av_q2d(a); - if (fabs(f - f2) > fabs(f)/5000000) { - av_log(NULL, AV_LOG_ERROR, "%d/%d %f %f\n", a.num, - a.den, f, f2); - return 1; - } - - } - } - - return 0; -} -#endif |