KRSHH
12 months ago
parent
7fb6b54c0b
commit
c72582506d
@ -1,3 +1,3 @@
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name = 'Deep Live Cam'
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version = '1.7.0'
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version = '1.7.5'
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edition = 'Portable'
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@ -0,0 +1,84 @@
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import cv2
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import numpy as np
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from pygrabber.dshow_graph import FilterGraph
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import threading
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from typing import Optional, Tuple, Callable
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class VideoCapturer:
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def __init__(self, device_index: int):
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self.graph = FilterGraph()
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self.device_index = device_index
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self.frame_callback = None
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self._current_frame = None
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self._frame_ready = threading.Event()
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self.is_running = False
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self.cap = None
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# Verify device exists
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devices = self.graph.get_input_devices()
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if self.device_index >= len(devices):
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raise ValueError(
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f"Invalid device index {device_index}. Available devices: {len(devices)}"
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)
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def start(self, width: int = 960, height: int = 540, fps: int = 60) -> bool:
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"""Initialize and start video capture"""
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try:
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# Try different capture methods in order
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capture_methods = [
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(self.device_index, cv2.CAP_DSHOW), # Try DirectShow first
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(self.device_index, cv2.CAP_ANY), # Then try default backend
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(-1, cv2.CAP_ANY), # Try -1 as fallback
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(0, cv2.CAP_ANY), # Finally try 0 without specific backend
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]
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for dev_id, backend in capture_methods:
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try:
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self.cap = cv2.VideoCapture(dev_id, backend)
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if self.cap.isOpened():
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break
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self.cap.release()
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except Exception:
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continue
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if not self.cap or not self.cap.isOpened():
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raise RuntimeError("Failed to open camera with all available methods")
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# Configure format
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self.cap.set(cv2.CAP_PROP_FRAME_WIDTH, width)
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self.cap.set(cv2.CAP_PROP_FRAME_HEIGHT, height)
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self.cap.set(cv2.CAP_PROP_FPS, fps)
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self.is_running = True
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return True
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except Exception as e:
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print(f"Failed to start capture: {str(e)}")
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if self.cap:
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self.cap.release()
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return False
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def read(self) -> Tuple[bool, Optional[np.ndarray]]:
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"""Read a frame from the camera"""
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if not self.is_running or self.cap is None:
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return False, None
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ret, frame = self.cap.read()
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if ret:
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self._current_frame = frame
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if self.frame_callback:
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self.frame_callback(frame)
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return True, frame
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return False, None
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def release(self) -> None:
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"""Stop capture and release resources"""
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if self.is_running and self.cap is not None:
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self.cap.release()
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self.is_running = False
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self.cap = None
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def set_frame_callback(self, callback: Callable[[np.ndarray], None]) -> None:
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"""Set callback for frame processing"""
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self.frame_callback = callback
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