Trait CameraImpl

Source

pub trait CameraImpl: Send + Sync {
    // Required methods
    fn video_capture_device(&self) -> &Device;
    fn media_device(&self) -> &Device;
    fn media_device_mut(&mut self) -> &mut Device;
    fn video_capture_entity(&self) -> &MediaV2Entity;
    fn sensor_entity(&self) -> &MediaV2Entity;

    // Provided methods
    fn start(&self, buffer_count: usize) -> Result<Stream, Error> { ... }
    fn stream_manual(&self, buffer_count: usize) -> Result<StreamManual, Error> { ... }
}

Expand description

An exclusive handle to a mutable camera resource.

Corresponds roughly to a sensor-device pipeline.

This is the main trait to fill in by camera vendors, defining all the low-level operations on the camera apart from acquiring.

Types implementing this impl are required to hold a system-wide exclusive lock over the hardware resource for as long as the instance exists. See ::util::flock::Locked. TODO: stop streaming when dropped? This is internal API, so maybe the owner type already takes care of stopping.