source_frames()

std::shared_ptr< Buffers::TextureBuffer > MayaFlux::Yantra::Vision::VisionWorkflow::source_frames ( const std::shared_ptr< Kakshya::VideoStreamContainer > &  source, std::string_view  caller  ) const

private

Definition at line 374 of file VisionWorkflow.cpp.

{
    if (!source) {
        MF_WARN(Journal::Component::Yantra, Journal::Context::ComputeMatrix,
            "VisionWorkflow::{}: no video stream", caller);
        return nullptr;
    }
 
    const auto io = m_io_manager.lock();
    if (!io || m_scheduler.expired() || m_event_manager.expired()) {
        MF_ERROR(Journal::Component::Yantra, Journal::Context::ComputeMatrix,
            "VisionWorkflow::{}: the engine's managers are gone", caller);
        return nullptr;
    }
 
    std::shared_ptr<Buffers::TextureBuffer> input;
    if (const auto camera = std::dynamic_pointer_cast<Kakshya::CameraContainer>(source)) {
        input = io->get_camera_buffer(camera);
        if (!input)
            input = io->hook_camera_to_buffer(camera);
    } else {
        input = io->get_video_buffer(source);
        if (!input)
            input = io->hook_video_container_to_buffer(source);
    }
 
    if (!input) {
        MF_ERROR(Journal::Component::Yantra, Journal::Context::ComputeMatrix,
            "VisionWorkflow::{}: the video stream could not be hooked to a buffer", caller);
        return nullptr;
    }
 
    return input;
}

References MayaFlux::Journal::ComputeMatrix, input, m_event_manager, m_io_manager, m_scheduler, MF_ERROR, MF_WARN, and MayaFlux::Journal::Yantra.

Referenced by process_to_buffer(), process_to_live_container(), and process_to_stream().

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