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Change to CAP_DSHOW for VideoCapture

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DuOtto
2026-07-31 09:02:21 +02:00
parent 09e94b218c
commit 2e6f444302
6 changed files with 125 additions and 39 deletions
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source/UI/SetupPageWidget.py
+17 -25
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@@ -1,8 +1,7 @@
import cv2, numpy as np
import os
from Tbd.helper import CameraObject
from Tbd.helper import CameraObject, DShowMJPGCapture
from UI.UILogger import UILogger
from PySide6.QtCore import Qt, QTimer
@@ -98,31 +97,24 @@ class SetupPage(QWidget):
# index=None
#)
for index in indexToAdd:
capture = cv2.VideoCapture(index, cv2.CAP_MSMF)
#capture = cv2.VideoCapture(index, cv2.CAP_DSHOW)
try:
capture = DShowMJPGCapture(index, 2592, 1944, fourcc_substr="MJPG")
except RuntimeError as e:
self.logger.log(str(e))
print(str(e))
continue
capture.set(cv2.CAP_PROP_FOURCC, cv2.VideoWriter_fourcc(*'MJPG'))
capture.set(cv2.CAP_PROP_FPS, 30)
capture.set(cv2.CAP_PROP_FRAME_WIDTH, 2592)
capture.set(cv2.CAP_PROP_FRAME_HEIGHT, 1944)
self.logger.log(f"Selected format: {capture.selected_format}")
print(f"Selected format: {capture.selected_format}")
#capture.set(cv2.CAP_PROP_FRAME_WIDTH, 2048.0)
#capture.set(cv2.CAP_PROP_FRAME_HEIGHT, 1536.0)
width = capture.get(cv2.CAP_PROP_FRAME_WIDTH)
height = capture.get(cv2.CAP_PROP_FRAME_HEIGHT)
fps = capture.get(cv2.CAP_PROP_FPS)
ret, frame = capture.read()
if ret:
self.logger.log(f"Actual frame shape: {frame.shape}")
print(f"Actual frame shape: {frame.shape}")
else:
self.logger.log("Failed to read a frame after configuring camera")
print("Failed to read a frame after configuring camera")
fourcc = int(capture.get(cv2.CAP_PROP_FOURCC))
fourcc_str = "".join([chr((fourcc >> 8*i) & 0xFF) for i in range(4)])
print(f"Resolution: {width}x{height}")
print(f"FPS: {fps}")
print(f"Format (FOURCC): {fourcc_str}")
self.logger.log(f"Resolution: {width}x{height}")
self.logger.log(f"FPS: {fps}")
self.logger.log(f"Format (FOURCC): {fourcc_str}")
#currentcapture = cv2.VideoCapture(index, cv2.CAP_MSMF)
#self.logger.log("Initial frame:", w, "x", h)
self.cameraList.append(CameraObject(
capture=capture,
@@ -185,7 +177,7 @@ class SetupPage(QWidget):
index = int(self.cameraIndex.text())
self.release_camera()
self.cameraObject.capture = cv2.VideoCapture(index)
self.cameraObject.capture = cv2.VideoCapture(index, cv2.CAP_DSHOW)
self.cameraObject.index = index
if not self.cameraObject.capture.isOpened():