Struct HeadlessConfig 

pub struct HeadlessConfig {
    pub size: (u32, u32),
    pub frames: u32,
    pub capture: Vec<u32>,
    pub audio_sample_rate: u32,
    pub soundfont: Arc<[u8]>,
}

The headless run’s settings.

Fields

size: (u32, u32)

The frame size, in pixels.

frames: u32

How many frames to step before the run ends.

capture: Vec<u32>

Which frames to capture, by index, ascending. An empty list makes the run audio-only: the render world still drains its commands and dispatches its frames, but none is drawn.

The frames come back in the order they were stepped. Every index must name a frame the run steps and each must follow the one before, or run panics: an index past the last frame matches nothing, and a list that went backwards would hand its frames back in an order the caller did not name them in.

audio_sample_rate: u32

The rate the mix is pulled at, and the rate the recorded audio is written at. The synthesizer takes it from the stream it renders into.

soundfont: Arc<[u8]>

The soundfont the synthesizer plays, as raw bytes: the demo passes the same embedded bytes the windowed mode builds with.