| 1 | use libc::{c_double, c_int}; |
| 2 | use AVRational; |
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| 3 | |
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| 4 | #[inline (always)] |
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| 5 | pub unsafe fn av_make_q(num: c_int, den: c_int) -> AVRational { |
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| 6 | AVRational { num, den } |
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| 7 | } |
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| 8 | |
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| 9 | #[inline (always)] |
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| 10 | pub unsafe fn av_cmp_q(a: AVRational, b: AVRational) -> c_int { |
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| 11 | let tmp: i64 = i64::from(a.num) * i64::from(b.den) - i64::from(b.num) * i64::from(a.den); |
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| 12 | |
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| 13 | if tmp != 0 { |
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| 14 | (((tmp ^ i64::from(a.den) ^ i64::from(b.den)) >> 63) | 1) as c_int |
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| 15 | } else if b.den != 0 && a.den != 0 { |
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| 16 | 0 |
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| 17 | } else if a.num != 0 && b.num != 0 { |
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| 18 | ((i64::from(a.num) >> 31) - (i64::from(b.num) >> 31)) as c_int |
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| 19 | } else { |
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| 20 | c_int::min_value() |
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| 21 | } |
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| 22 | } |
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| 23 | |
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| 24 | #[inline (always)] |
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| 25 | pub unsafe fn av_q2d(a: AVRational) -> c_double { |
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| 26 | f64::from(a.num) / f64::from(a.den) |
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| 27 | } |
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| 28 | |
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| 29 | #[inline (always)] |
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| 30 | pub unsafe fn av_inv_q(q: AVRational) -> AVRational { |
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| 31 | AVRational { |
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| 32 | num: q.den, |
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| 33 | den: q.num, |
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| 34 | } |
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| 35 | } |
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| 36 | |
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