Struct JackCallbackContext

Source

pub struct JackCallbackContext { /* private fields */ }

Expand description

Context for some callbacks.

Implementations§

Source §

impl JackCallbackContext

Source

pub fn nframes(&self) -> u32

Returns the number of frames that must be processed in this callback.

Source

pub fn get_port_buffer(&self, port: &JackPort) -> Option<&mut [f32]>

Gets the buffer of a port, if the port is valid.

Examples found in repository ?

examples/simple_client.rs (line 11)

10    fn process(&mut self, ctx: &JackCallbackContext) -> JackControl {
11        let inp = ctx.get_port_buffer(&self.inp).unwrap();
12        let out = ctx.get_port_buffer(&self.out).unwrap();
13        for (out, inp) in out.iter_mut().zip(inp.iter()) {
14            *out = *inp;
15        }
16        JackControl::Continue
17    }

More examples

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examples/sawtooth.rs (line 13)

12    fn process(&mut self, ctx: &JackCallbackContext) -> JackControl {
13        let out1 = ctx.get_port_buffer(&self.out1).unwrap();
14        let out2 = ctx.get_port_buffer(&self.out2).unwrap();
15        for (out1, out2) in out1.iter_mut().zip(out2.iter_mut()) {
16            *out1 = self.left_saw * 0.2;
17            *out2 = self.right_saw * 0.2;
18            self.left_saw += 0.01;
19            if self.left_saw >= 1.0 { self.left_saw -= 2.0; }
20            self.right_saw += 0.03;
21            if self.right_saw >= 1.0 { self.right_saw -= 2.0; }
22        }
23        JackControl::Continue
24    }