Struct Graph 

pub struct Graph { /* private fields */ }

Owned audio graph session.

Wraps the C ove_audio_graph in a safe API. All unsafe FFI calls are encapsulated — application code uses only safe methods.

Example

let mut g = Graph::new(512)?;
let dev = device_cfg_i2s(16000, 1, 1);
let src  = g.device_source(&dev, b"mic\0")?;
let proc = g.add_processor(PROC.get_mut(), b"dsp\0")?;
let sink = g.device_sink(&dev, b"spk\0")?;
g.connect(src, proc)?;
g.connect(proc, sink)?;
g.build()?;
g.start()?;

Implementations

impl Graph

pub fn new(frames_per_period: u32) -> Result<Self>

Create and initialize a new audio graph.

pub fn device_source( &mut self, cfg: &ove_audio_device_cfg, name: &[u8], ) -> Result<u32, Error>

Add a hardware audio source node. Returns the node index.

pub fn device_sink( &mut self, cfg: &ove_audio_device_cfg, name: &[u8], ) -> Result<u32, Error>

Add a hardware audio sink node. Returns the node index.

pub fn add_processor<T: AudioProcessor>( &mut self, processor: &'static mut T, name: &[u8], ) -> Result<u32, Error>

Register a custom processor node. Returns the node index.

pub fn connect(&mut self, from: u32, to: u32) -> Result<()>

Connect two nodes. from feeds into to.

pub fn build(&mut self) -> Result<()>

Validate formats, resolve execution order, allocate buffers.

pub fn start(&mut self) -> Result<()>

Start the graph (sink-driven mode).

pub fn stop(&mut self) -> Result<()>

Stop the graph.

pub fn process(&mut self) -> Result<()>

Process one cycle (app-driven mode).

Trait Implementations

impl Drop for Graph

fn drop(&mut self)

Executes the destructor for this type.