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apt-decoder
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Final clean up and tweaks

This commit is contained in:
Sebastian 2016-11-28 10:59:32 +01:00
parent 604355d906
commit a98675b3ca
1 changed files with 46 additions and 66 deletions
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112
src/main.rs
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@ -7,6 +7,7 @@ mod resamplers;
mod amdemod;
mod aptsyncer;
use std::io::prelude::*;
use std::fs::File;
use std::path::Path;
@ -20,71 +21,32 @@ const LINES_PER_SECOND: u32 = 2;
const PIXELS_PER_LINE: u32 = 2080;
const LOWPASS_COEFFS : [f32; 63] = [ -7.383784e-03,
-3.183046e-03,
2.255039e-03,
7.461166e-03,
1.091908e-02,
1.149109e-02,
8.769802e-03,
3.252932e-03,
-3.720606e-03,
-1.027446e-02,
-1.447403e-02,
-1.486427e-02,
-1.092423e-02,
-3.307958e-03,
6.212477e-03,
1.511364e-02,
2.072873e-02,
2.096037e-02,
1.492345e-02,
3.347624e-03,
-1.138407e-02,
-2.560252e-02,
-3.507114e-02,
-3.591225e-02,
-2.553830e-02,
-3.371569e-03,
2.882645e-02,
6.711368e-02,
1.060042e-01,
1.394643e-01,
1.620650e-01,
1.700462e-01,
1.620650e-01,
1.394643e-01,
1.060042e-01,
6.711368e-02,
2.882645e-02,
-3.371569e-03,
-2.553830e-02,
-3.591225e-02,
-3.507114e-02,
-2.560252e-02,
-1.138407e-02,
3.347624e-03,
1.492345e-02,
2.096037e-02,
2.072873e-02,
1.511364e-02,
6.212477e-03,
-3.307958e-03,
-1.092423e-02,
-1.486427e-02,
-1.447403e-02,
-1.027446e-02,
-3.720606e-03,
3.252932e-03,
8.769802e-03,
1.149109e-02,
1.091908e-02,
7.461166e-03,
2.255039e-03,
-3.183046e-03,
-7.383784e-03];
-3.183046e-03, 2.255039e-03, 7.461166e-03, 1.091908e-02,
1.149109e-02, 8.769802e-03, 3.252932e-03, -3.720606e-03,
-1.027446e-02, -1.447403e-02, -1.486427e-02, -1.092423e-02,
-3.307958e-03, 6.212477e-03, 1.511364e-02, 2.072873e-02,
2.096037e-02, 1.492345e-02, 3.347624e-03, -1.138407e-02,
-2.560252e-02, -3.507114e-02, -3.591225e-02, -2.553830e-02,
-3.371569e-03, 2.882645e-02, 6.711368e-02, 1.060042e-01,
1.394643e-01, 1.620650e-01, 1.700462e-01, 1.620650e-01,
1.394643e-01, 1.060042e-01, 6.711368e-02, 2.882645e-02,
-3.371569e-03, -2.553830e-02, -3.591225e-02, -3.507114e-02,
-2.560252e-02, -1.138407e-02, 3.347624e-03, 1.492345e-02,
2.096037e-02, 2.072873e-02, 1.511364e-02, 6.212477e-03,
-3.307958e-03, -1.092423e-02, -1.486427e-02, -1.447403e-02,
-1.027446e-02, -3.720606e-03, 3.252932e-03, 8.769802e-03,
1.149109e-02, 1.091908e-02, 7.461166e-03, 2.255039e-03,
-3.183046e-03, -7.383784e-03];
fn main() {
let mut reader = match hound::WavReader::open("noaa19_20160814_mono.wav") {
let args : Vec<String> = std::env::args().collect();
if args.len() != 3 {
println!("Usage: {} <wav file> <output file>", args[0]);
return;
}
let mut reader = match hound::WavReader::open(&args[1]) {
Err(e) => panic!("Could not open inputfile: {}", e),
Ok(r) => r
};
@ -120,7 +82,20 @@ fn main() {
let mut y = 0;
let mut max_level = 0.0;
let mut progress = 0;
let step = sample_count * 13 / 150 / 10;
print!("0%");
std::io::stdout().flush().unwrap();
for synced_sample in syncer {
progress += 1;
if progress % step == 0 {
print!("...{}%", progress / step * 10);
std::io::stdout().flush().unwrap();
}
let sample = match synced_sample {
SyncedSample::Sample(s) => s,
SyncedSample::SyncA(s) =>{
@ -136,8 +111,6 @@ fn main() {
max_level = f32::max(sample, max_level);
let color = (sample / max_level * 255.0) as u8;
//println!("{}", color);
if y < lines {
img.put_pixel(x,y,image::Luma([color]));
}
@ -148,7 +121,14 @@ fn main() {
y += 1;
}
}
println!("");
let ref mut fout = File::create(&Path::new("decoded.png")).unwrap();
let ref mut fout = match File::create(&Path::new(&args[2])) {
Err(e) => panic!("Could not open outputfile: {}", e),
Ok(f) => f
};
image::ImageLuma8(img).save(fout, image::PNG).unwrap();
println!("Done !");
}