95 lines
2.8 KiB
Python
95 lines
2.8 KiB
Python
import gphoto2 as gp
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import numpy as np
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import cv2
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from PySide6.QtCore import QObject, QThread, Signal
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from PySide6.QtGui import QImage, QPixmap
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class CameraWorker(QObject):
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frameReady = Signal(QPixmap)
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errorOccurred = Signal(str)
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def __init__(self, fps: int = 15, parent=None):
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super().__init__(parent)
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self.fps = fps
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self.running = False
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self.camera = None
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def start_camera(self):
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"""Uruchom kamerę i zacznij pobierać klatki"""
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try:
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self.camera = gp.Camera()
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self.camera.init()
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self.running = True
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self._capture_loop()
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except gp.GPhoto2Error as e:
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self.errorOccurred.emit(f"Błąd inicjalizacji kamery: {e}")
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def stop_camera(self):
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"""Zatrzymaj pobieranie"""
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self.running = False
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if self.camera:
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try:
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self.camera.exit()
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except gp.GPhoto2Error:
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pass
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self.camera = None
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def _capture_loop(self):
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"""Pętla odczytu klatek w osobnym wątku"""
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import time
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delay = 1.0 / self.fps
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while self.running:
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try:
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file = self.camera.capture_preview() # type: ignore
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data = file.get_data_and_size()
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frame = np.frombuffer(data, dtype=np.uint8)
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frame = cv2.imdecode(frame, cv2.IMREAD_COLOR)
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if frame is not None:
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rgb_image = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
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h, w, ch = rgb_image.shape
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qimg = QImage(rgb_image.data, w, h, ch * w, QImage.Format.Format_RGB888)
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pixmap = QPixmap.fromImage(qimg)
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self.frameReady.emit(pixmap)
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except gp.GPhoto2Error as e:
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self.errorOccurred.emit(f"Błąd odczytu LiveView: {e}")
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break
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except Exception as e:
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self.errorOccurred.emit(f"Nieoczekiwany błąd: {e}")
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break
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time.sleep(delay)
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class CameraController(QObject):
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frameReady = Signal(QPixmap)
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errorOccurred = Signal(str)
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def __init__(self, fps: int = 15, parent=None):
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super().__init__(parent)
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self.camera_thread = QThread()
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self.worker = CameraWorker(fps)
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self.worker.moveToThread(self.camera_thread )
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# sygnały z workera
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self.worker.frameReady.connect(self.frameReady)
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self.worker.errorOccurred.connect(self.errorOccurred)
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# sygnały start/stop
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self.camera_thread .started.connect(self.worker.start_camera)
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def start(self):
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"""Start kamery w osobnym wątku"""
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self.camera_thread.start()
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def stop(self):
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"""Stop kamery i zakończenie wątku"""
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self.worker.stop_camera()
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self.camera_thread.quit()
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self.camera_thread.wait()
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