fwt_software/include/fgc/ICameraSource.h

89 lines
3.1 KiB
C++

#pragma once
#include "fgc/CameraProfile.h"
#include <cstdint>
#include <functional>
#include <string>
#include <vector>
namespace fgc {
// One captured frame, owning a copy of its pixel buffer (was image_store_8bit).
struct Frame {
std::vector<uint8_t> data;
uint32_t width = 0;
uint32_t height = 0;
int channels = 0; // 1 (mono) or 3 (RGB)
long long timestamp_ms = 0; // Unix epoch ms
int cam_id = 0; // index into the configured camera list
};
// Live per-camera identity, sensor telemetry, and acquisition stats, for the
// expanded camera view. Populated by deviceInfo(); fields the source can't read
// are left at their defaults.
struct CameraDeviceInfo {
std::string id;
std::string model;
std::string serial;
bool streaming = false;
// Current frame geometry as delivered.
uint32_t width = 0;
uint32_t height = 0;
long long payload_bytes = 0;
// Live sensor telemetry (read from the camera, throttled).
double exposure_us = 0.0;
double gain_db = 0.0;
double temperature_c = 0.0;
double actual_fps = 0.0;
// Cumulative acquisition stats since the source was created.
long long frames_delivered = 0;
long long frames_dropped = 0; // incomplete/invalid deliveries
long long restarts = 0; // stream restarts (restart-on-stall)
};
// Abstraction over the camera array. Implemented by VimbaCameraSource (Allied
// Vision Vimba X) and MockCameraSource (synthetic frames, no hardware).
//
// Completed frames are delivered to the callback set via setFrameCallback();
// the consumer (ImagePipeline) encodes and stores them.
class ICameraSource {
public:
using FrameCallback = std::function<void(const Frame&)>;
virtual ~ICameraSource() = default;
virtual void open() = 0; // acquire/open cameras
virtual void close() = 0;
virtual void start() = 0; // begin acquisition
virtual void stop() = 0;
// Capture one image and deliver it to the frame callback. Returns true on
// success. The camera free-runs, so this hands over the freshest complete
// frame; it returns false when no frame newer than the last one is available
// yet, and the caller simply retries.
virtual bool trigger() = 0;
// Apply a profile to one camera, identified by its index in the order the
// source opened them (the same index Frame::cam_id carries). The backend
// loads the profile's settings XML through its SDK - see CameraProfile.h.
// Default: no-op, for sources with nothing to configure.
virtual bool setProfile(int /*camera_index*/, const CameraProfile& /*profile*/) {
return false;
}
virtual void setFrameCallback(FrameCallback cb) = 0;
// Number of cameras this source manages.
virtual int cameraCount() const = 0;
// Live identity/telemetry/stats per camera, for the expanded camera view.
// Default: none. Implementations may refresh a throttled cache, so non-const.
virtual std::vector<CameraDeviceInfo> deviceInfo() { return {}; }
};
} // namespace fgc