Merge pull request #36 from Jerboas86/ctxt_opts

add AudioContextOptions to AudioContext

examples/biquad.rs

@@ -5,7 +5,7 @@ use web_audio_api::node::{AudioControllableSourceNode, AudioNode, AudioScheduled
 
 fn main() {
     env_logger::init();
-    let context = AudioContext::new();
+    let context = AudioContext::new(None);
 
     // setup background music:
     // read from local file

examples/merger.rs

@@ -0,0 +1,43 @@
+use web_audio_api::context::{AsBaseAudioContext, AudioContext, AudioContextOptions, LatencyHint};
+use web_audio_api::node::{AudioNode, AudioScheduledSourceNode};
+
+fn main() {
+    let options = AudioContextOptions {
+        sample_rate: Some(48_000),
+        channels: Some(2),
+        latency_hint: Some(LatencyHint::Playback),
+    };
+
+    let context = AudioContext::new(Some(options));
+
+    println!("Sample rate: {:?}", context.sample_rate());
+    println!("Channels: {}", context.destination().max_channels_count());
+
+    // Create an oscillator
+    let left = context.create_oscillator();
+
+    //Create an oscillator
+    let right = context.create_oscillator();
+    // set a different frequency to distinguish left from right osc
+    right.frequency().set_value(1000.);
+
+    // Create a merger
+    let merger = context.create_channel_merger(2);
+
+    // connect left osc to left input of the merger
+    left.connect_at(&merger, 0, 0).unwrap();
+    // connect right osc to left input of the merger
+    right.connect_at(&merger, 0, 1).unwrap();
+
+    // Connect the merger to speakers
+    merger.connect(&context.destination());
+
+    // Start the oscillators
+    left.start();
+    right.start();
+
+    // connect left osc to splitter
+
+    // enjoy listening
+    std::thread::sleep(std::time::Duration::from_secs(4));
+}

examples/microphone.rs

@@ -4,7 +4,7 @@ use web_audio_api::node::AudioNode;
 
 fn main() {
     env_logger::init();
-    let context = AudioContext::new();
+    let context = AudioContext::new(None);
 
     let stream = Microphone::new();
     // register as media element in the audio context

examples/oscillators.rs

@@ -8,7 +8,7 @@ fn main() {
     env_logger::init();
 
     // Create an audio context where all audio nodes lives
-    let context = AudioContext::new();
+    let context = AudioContext::new(None);
 
     // Create an oscillator node with sine (default) type
     let mut osc = context.create_oscillator();

examples/shaper.rs

@@ -26,7 +26,7 @@ fn make_distortion_curve(amount: usize) -> Vec<f32> {
 
 fn main() {
     env_logger::init();
-    let context = AudioContext::new();
+    let context = AudioContext::new(None);
 
     // setup background music:
     // read from local file

examples/showcase.rs

@@ -5,7 +5,7 @@ use web_audio_api::node::{AudioControllableSourceNode, AudioNode, AudioScheduled
 
 fn main() {
     env_logger::init();
-    let context = AudioContext::new();
+    let context = AudioContext::new(None);
 
     // setup background music:
     // read from local file

examples/spatial.rs

@@ -4,7 +4,7 @@ use web_audio_api::node::AudioScheduledSourceNode;
 
 fn main() {
     env_logger::init();
-    let context = AudioContext::new();
+    let context = AudioContext::new(None);
 
     // Create a friendly tone
     let tone = context.create_oscillator();

examples/stereo.rs

@@ -3,7 +3,7 @@ use web_audio_api::node::{AudioNode, AudioScheduledSourceNode};
 
 fn main() {
     env_logger::init();
-    let context = AudioContext::new();
+    let context = AudioContext::new(None);
 
     // Create an oscillator
     let osc = context.create_oscillator();

examples/worklet.rs

@@ -114,7 +114,7 @@ impl AudioProcessor for WhiteNoiseProcessor {
 
 fn main() {
     env_logger::init();
-    let context = AudioContext::new();
+    let context = AudioContext::new(None);
 
     // construct new node in this context
     let noise = WhiteNoiseNode::new(&context);

src/buffer.rs

@@ -143,8 +143,7 @@ impl AudioBuffer {
     }
 
     /// Split an AudioBuffer in two at the given index.
-    pub fn split_off(&mut self, index: u32) -> AudioBuffer {
-        let index = index as usize;
+    pub fn split_off(&mut self, index: usize) -> AudioBuffer {
         let sample_rate = self.sample_rate();
 
         let channels: Vec<_> = self
@@ -467,7 +466,7 @@ impl<M: MediaStream> Iterator for Resampler<M> {
             return Some(Ok(buffer));
         }
 
-        self.buffer = Some(buffer.split_off(self.sample_len));
+        self.buffer = Some(buffer.split_off(self.sample_len as usize));
 
         Some(Ok(buffer))
     }