第一种：
利用opencv自带的
def open():
rtsp = "rtsp://" + url + "/stream_main"
print(rtsp)
cap = cv2.VideoCapture(rtsp)
while True:
ret, frame = cap.read()
if not ret:
break
cv2.imshow('video', frame)
cv2.waitKey(1)
if cv2.getWindowProperty('video', 4) < 1:
self.ui.pushButton_7.setEnabled(True)
self.ui.pushButton_4.setEnabled(True)
break
cv2.destroyAllWindows()
cap.release()
thread = Thread(target=open)
thread.start()
第二种:
label_width = label_video_test.width()
label_height = label_video_test.height()
results = self.run_main('post', url="/camera/searchCameraConfig")
#核心代码
def open():
cap = cv2.VideoCapture(rtsp)
ret, frame = cap.read()
while ret:
ret, frame = cap.read()
# 将图片转换为QImage
temp_imgSrc = QImage(frame[:], frame.shape[1], frame.shape[0], frame.shape[1] * 3,
QImage.Format_RGB888)
# 将图片转换为QPixmap方便显示
pixmap_imgSrc = QPixmap.fromImage(temp_imgSrc).scaled(label_width, label_height)
try:
label_video_test.move(0, 0)
label_video_test.setPixmap(QPixmap(pixmap_imgSrc))
except:
break
if cv2.waitKey(1) & 0xFF == ord('q'):
break
cv2.destroyAllWindows()
cap.release()
thread = Thread(target=open)
thread.start()
第二种存在色彩失真，优化
class MyThread(QThread):
# 定义信号,定义参数为str类型
def __init__(self, parent=None):
super().__init__(parent)
self.stoped = False
def run(self):
#获取Label标签的长宽
label_width = ui.enterLabel.width()
label_height = ui.enterLabel.height()
# cap = cv2.VideoCapture("rtsp:xxx/[email protected]/h264/ch1/sub/av_stream")
cap = cv2.VideoCapture(rtsp)
while cap.isOpened():
if self.stoped:
return
ret, frame = cap.read()
height, width, bytesPerComponent = frame.shape
bytesPerLine = bytesPerComponent * width
# 变换彩色空间顺序
cv2.cvtColor(frame, cv2.COLOR_BGR2RGB, frame)
image = QImage(frame.data, width, height, bytesPerLine, QImage.Format_RGB888)
pixmap_imgSrc = QPixmap.fromImage(image).scaled(label_width, label_height)
ui.enterLabel.setPixmap(QPixmap(pixmap_imgSrc))
self.res = MyThread()
self.res.start()
