Function rsmpeg::ffi::av_rescale_rnd

pub unsafe extern "C" fn av_rescale_rnd(a: i64, b: i64, c: i64, rnd: u32) -> i64

Rescale a 64-bit integer with specified rounding.

The operation is mathematically equivalent to a * b / c, but writing that directly can overflow, and does not support different rounding methods.

@see av_rescale(), av_rescale_q(), av_rescale_q_rnd()