Add dB test + long awaited README

3 files changed, 51 insertions, 0 deletions

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..7902bae
--- /dev/null
+++ b/README.md
@@ -0,0 +1,36 @@
+# set_eq: A command-line tool to manipulate PulseAudio's equalizers
+
+This tool will allow you to use a configuration file to send to your favorite
+PulseAudio's equalizer.
+
+It was originally made to work with
+[AutoEq](https://github.com/jaakkopasanen/AutoEq)'s
+[database](https://github.com/jaakkopasanen/AutoEq/tree/master/results), but if
+you have ideas on how to extend `set_eq`'s domain, please start a discussion in
+a new issue!
+
+Supported configuration format:
+
+- EqualizerAPO (very partial)
+
+Supported equalizer:
+
+- PulseAudio's built-in equalizer (deprecated and buggy, should not use)
+- PulseEffects
+
+## Quick start
+
+- Install [PulseEffects](https://github.com/wwmm/pulseeffects)
+- Find or create an EqualizerAPO configuration file
+        - If you have a some headphones, try to find it
+          [here](https://github.com/jaakkopasanen/AutoEq/tree/master/results)
+          and either download the `<headphone> GraphicEQ.txt` file or save the
+          EqualizerAPO snippet from the README
+- Run the following command:
+
+```
+set_eq pa-effects export-preset <EqualizerAPO file> > MyPreset.json
+```
+
+- Load the new preset in PulseEffects' interface
+- Profit!
diff --git a/src/parsing/mod.rs b/src/parsing/mod.rs
index 3aedb2c..4454b04 100644
--- a/src/parsing/mod.rs
+++ b/src/parsing/mod.rs
@@ -2,3 +2,5 @@
 pub mod equalizer_apo;
 
 pub use self::equalizer_apo::MainParser as EqualizerApoParser;
+
+// TODO: test parsing filters with real examples
diff --git a/src/utils.rs b/src/utils.rs
index 24df0ce..b966a3b 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -85,3 +85,16 @@ fn introspect(conn: &dbus::ConnPath<&Connection>) {
     println!("{}", thing.iter_init().read::<String>().unwrap());
 }
 */
+
+#[cfg(test)]
+mod tests {
+
+    #[test]
+    fn decibel_to_ratio() {
+        assert_eq!(super::decibel_to_ratio(0f64), 1f64);
+        assert_eq!(super::decibel_to_ratio(20f64), 10f64);
+        assert_eq!(super::decibel_to_ratio(40f64), 100f64);
+        assert_eq!(super::decibel_to_ratio(60f64), 1000f64);
+    }
+
+}