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author | Justin Worthe <justin@worthe-it.co.za> | 2017-09-24 23:03:39 +0200 |
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committer | Justin Worthe <justin@worthe-it.co.za> | 2017-09-24 23:03:39 +0200 |
commit | f3a4cc60d71a0083586b5498fd2498801a634d04 (patch) | |
tree | afe607b84ce474dc75952b70c4a64e686039dc9b /src | |
parent | 3f5fb1cc3de97244548538ec81dda3963f1b25c6 (diff) |
Emscripten endpoint for finding fundamental frequency
IT'S ALIVE!
Diffstat (limited to 'src')
-rw-r--r-- | src/transforms.rs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/transforms.rs b/src/transforms.rs index 55f81b6..656255b 100644 --- a/src/transforms.rs +++ b/src/transforms.rs @@ -236,3 +236,19 @@ pub fn align_to_rising_edge(samples: &[f32]) -> Vec<f32> { .cloned() .collect() } + + +#[cfg(target_os = "emscripten")] +pub mod emscripten_api { + #[no_mangle] + pub extern "C" fn find_fundamental_frequency(signal: *const f32, signal_length: isize, sample_rate: f32) -> f32 { + use std::slice; + let signal_slice = unsafe { + &slice::from_raw_parts(signal, signal_length as usize) + }; + + println!("Signal is {:?}", signal_slice); + println!("Sample rate is {:?}Hz", sample_rate); + super::find_fundamental_frequency(&signal_slice, sample_rate).unwrap_or(0.0) + } +} |