capture_to_stream() [1/3]

BufferOperation MayaFlux::Kriya::BufferOperation::capture_to_stream ( const std::shared_ptr< IO::IOManager > &  io_manager, const IO::CameraConfig &  config, uint64_t  ring_frames = 0, std::optional< Portal::Graphics::RenderConfig >  live = std::nullopt, std::optional< Portal::Graphics::RenderConfig >  display = std::nullopt  )

static

Capture a camera straight into a dynamic video stream it creates.

One operation opens the camera, hooks it to a buffer, makes a ring sized from that buffer's real frame size and format, and each cycle appends the camera frame to it. The stream is reached through get_graphics_stream() so playback can be set up, for example lag_behind_head.

Parameters

ring_frames	Frames the ring keeps; zero keeps three seconds at the registered frame rate.
live	Draws the live camera when given.
display	Draws the stream through the pipeline's IOManager when given; the pipeline needs one.

Definition at line 272 of file BufferOperation.cpp.

{
    auto camera = io_manager->open_camera(config);
    if (!camera) {
        error<std::runtime_error>(Journal::Component::Kriya, Journal::Context::AsyncIO,
            std::source_location::current(), "Failed to open camera");
    }
 
    return capture_to_stream(io_manager, camera, ring_frames, std::move(live), std::move(display));
}

References MayaFlux::Journal::AsyncIO, capture_to_stream(), and MayaFlux::Journal::Kriya.

Referenced by capture_to_stream(), and capture_to_stream().

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