0.1.0: Initial commit

Signed-off-by: Ivan Bushchik <ivabus@ivabus.dev>

.gitignore

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+/target
+.idea
+*.DS_Store
+*.wav

.rustfmt.toml

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+edition = "2021"
+hard_tabs = true
+merge_derives = true
+reorder_imports = true
+reorder_modules = true
+use_field_init_shorthand = true
+use_small_heuristics = "Off"
+wrap_comments = true
+comment_width = 80

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
+[[package]]
+name = "dasp_frame"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2a3937f5fe2135702897535c8d4a5553f8b116f76c1529088797f2eee7c5cd6"
+dependencies = [
+ "dasp_sample",
+]
+
+[[package]]
+name = "dasp_sample"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c87e182de0887fd5361989c677c4e8f5000cd9491d6d563161a8f3a5519fc7f"
+
+[[package]]
+name = "ebur128"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "12aebdd6b6b47b5880c049efb0e77f8762178a0745ef778878908f5981c05f52"
+dependencies = [
+ "bitflags",
+ "dasp_frame",
+ "dasp_sample",
+ "smallvec",
+]
+
+[[package]]
+name = "exp"
+version = "0.1.0"
+dependencies = [
+ "ebur128",
+ "wav",
+]
+
+[[package]]
+name = "riff"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9b1a3d5f46d53f4a3478e2be4a5a5ce5108ea58b100dcd139830eae7f79a3a1"
+
+[[package]]
+name = "smallvec"
+version = "1.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4dccd0940a2dcdf68d092b8cbab7dc0ad8fa938bf95787e1b916b0e3d0e8e970"
+
+[[package]]
+name = "wav"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a65e199c799848b4f997072aa4d673c034f80f40191f97fe2f0a23f410be1609"
+dependencies = [
+ "riff",
+]

Cargo.toml

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+[package]
+name = "war-rs"
+version = "0.1.0"
+edition = "2021"
+repository = "https://github.com/ivabus/WAR.rs"
+authors = [ "Ivan Bushchik <ivabus@ivabus.dev>" ]
+license = "MIT"
+description = "Automatic encoder of \"1-bit\" WAVE files with LUFS calculation"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+ebur128 = "0.1.8"
+wav = "1.0.0"

LICENSE

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+MIT License
+
+Copyright (c) 2023 Ivan Bushchik
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
+OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+# WAR.rs
+
+> Winner of THE LOUDNESS WAR
+
+Automatic encoder of "1-bit" WAVE files with LUFS calculation.
+
+## Usage
+
+```shell
+cargo run <INPUT.wav> <OUTPUT.wav>
+```
+
+## License
+
+WAR.rs is licensed under the terms of the [MIT license](./LICENSE).

src/main.rs

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+use std::env::args;
+use std::fs::File;
+use std::path::Path;
+use std::time::Instant;
+use wav::BitDepth;
+
+fn perform_voluming_i<T: Into<f64> + Copy>(data: Vec<T>) -> Vec<i16> {
+	data.iter()
+		.map(|i| {
+			if Into::<f64>::into(*i) > 0.0f64 {
+				0x7fff
+			} else {
+				-0x8000
+			}
+		})
+		.collect()
+}
+
+// u8 PCM should be treated other way (if we are going without unsafing (we could transform it into i8)), than a i{16,32} and f32
+fn perform_voluming_u8(data: Vec<u8>) -> Vec<i16> {
+	data.iter()
+		.map(|&i| {
+			if i > 128 {
+				0x7fff
+			} else {
+				-0x8000
+			}
+		})
+		.collect()
+}
+
+fn main() {
+	let args: Vec<String> = args().collect();
+	if args.len() != 3 {
+		eprintln!("WAR.rs: winner of THE LOUDNESS WAR");
+		eprintln!("Usage: {} <INPUT.wav> <OUTPUT.wav>", args[0]);
+		std::process::exit(1);
+	}
+	let (input, output) = (args[1].clone(), args[2].clone());
+	let start = Instant::now();
+	let mut inp_file = File::open(Path::new(&input)).unwrap();
+	let (header, data) = wav::read(&mut inp_file).unwrap();
+	let new_header = wav::Header::new(
+		wav::header::WAV_FORMAT_PCM,
+		header.channel_count,
+		header.sampling_rate,
+		16,
+	);
+
+	let volumed = match data {
+		BitDepth::Eight(data) => perform_voluming_u8(data),
+		BitDepth::Sixteen(data) => perform_voluming_i(data),
+		BitDepth::TwentyFour(data) => perform_voluming_i(data),
+		BitDepth::ThirtyTwoFloat(data) => perform_voluming_i(data),
+		BitDepth::Empty => {
+			eprintln!("No audio data found in input file.");
+			std::process::exit(1);
+		}
+	};
+
+	let mut out_file = File::create(Path::new(&output)).unwrap();
+	wav::write(new_header, &BitDepth::Sixteen(volumed.clone()), &mut out_file).unwrap();
+	println!("Saved to {} in {} seconds", output, (Instant::now() - start).as_secs_f64());
+
+	let mut ebur =
+		ebur128::EbuR128::new(header.channel_count as u32, header.sampling_rate, ebur128::Mode::I)
+			.unwrap();
+	ebur.add_frames_i16(volumed.as_slice()).unwrap();
+	println!("New loudness:\t{} LUFS", ebur.loudness_global().unwrap());
+}