Add comprehensive tests for camera streaming, time synchronization, and auto-recording functionality

- Implemented test script for camera streaming functionality, covering API endpoints and concurrent recording.
- Created time verification script to check system time synchronization against multiple APIs.
- Developed timezone utility tests to validate timezone functions and logging.
- Added integration tests for system components, including configuration, camera discovery, and API endpoints.
- Enhanced MQTT logging and API endpoint tests for machine and MQTT status.
- Established auto-recording tests to simulate state changes and verify automatic recording behavior.
- Created simple tests for auto-recording configuration and API model validation.

ai_agent/examples/demos/grab.py

@@ -0,0 +1,111 @@
+#coding=utf-8
+import mvsdk
+
+def main():
+	# 枚举相机
+	DevList = mvsdk.CameraEnumerateDevice()
+	nDev = len(DevList)
+	if nDev < 1:
+		print("No camera was found!")
+		return
+		
+	for i, DevInfo in enumerate(DevList):
+		print("{}: {} {}".format(i, DevInfo.GetFriendlyName(), DevInfo.GetPortType()))
+	i = 0 if nDev == 1 else int(input("Select camera: "))
+	DevInfo = DevList[i]
+	print(DevInfo)
+
+	# 打开相机
+	hCamera = 0
+	try:
+		hCamera = mvsdk.CameraInit(DevInfo, -1, -1)
+	except mvsdk.CameraException as e:
+		print("CameraInit Failed({}): {}".format(e.error_code, e.message) )
+		return
+
+	# 获取相机特性描述
+	cap = mvsdk.CameraGetCapability(hCamera)
+	PrintCapbility(cap)
+
+	# 判断是黑白相机还是彩色相机
+	monoCamera = (cap.sIspCapacity.bMonoSensor != 0)
+
+	# 黑白相机让ISP直接输出MONO数据，而不是扩展成R=G=B的24位灰度
+	if monoCamera:
+		mvsdk.CameraSetIspOutFormat(hCamera, mvsdk.CAMERA_MEDIA_TYPE_MONO8)
+
+	# 相机模式切换成连续采集
+	mvsdk.CameraSetTriggerMode(hCamera, 0)
+
+	# 手动曝光，曝光时间30ms
+	mvsdk.CameraSetAeState(hCamera, 0)
+	mvsdk.CameraSetExposureTime(hCamera, 30 * 1000)
+
+	# 让SDK内部取图线程开始工作
+	mvsdk.CameraPlay(hCamera)
+
+	# 计算RGB buffer所需的大小，这里直接按照相机的最大分辨率来分配
+	FrameBufferSize = cap.sResolutionRange.iWidthMax * cap.sResolutionRange.iHeightMax * (1 if monoCamera else 3)
+
+	# 分配RGB buffer，用来存放ISP输出的图像
+	# 备注：从相机传输到PC端的是RAW数据，在PC端通过软件ISP转为RGB数据（如果是黑白相机就不需要转换格式，但是ISP还有其它处理，所以也需要分配这个buffer）
+	pFrameBuffer = mvsdk.CameraAlignMalloc(FrameBufferSize, 16)
+
+	# 从相机取一帧图片
+	try:
+		pRawData, FrameHead = mvsdk.CameraGetImageBuffer(hCamera, 2000)
+		mvsdk.CameraImageProcess(hCamera, pRawData, pFrameBuffer, FrameHead)
+		mvsdk.CameraReleaseImageBuffer(hCamera, pRawData)
+		
+		# 此时图片已经存储在pFrameBuffer中，对于彩色相机pFrameBuffer=RGB数据，黑白相机pFrameBuffer=8位灰度数据
+		# 该示例中我们只是把图片保存到硬盘文件中
+		status = mvsdk.CameraSaveImage(hCamera, "./grab.bmp", pFrameBuffer, FrameHead, mvsdk.FILE_BMP, 100)
+		if status == mvsdk.CAMERA_STATUS_SUCCESS:
+			print("Save image successfully. image_size = {}X{}".format(FrameHead.iWidth, FrameHead.iHeight) )
+		else:
+			print("Save image failed. err={}".format(status) )
+	except mvsdk.CameraException as e:
+		print("CameraGetImageBuffer failed({}): {}".format(e.error_code, e.message) )
+
+	# 关闭相机
+	mvsdk.CameraUnInit(hCamera)
+
+	# 释放帧缓存
+	mvsdk.CameraAlignFree(pFrameBuffer)
+
+def PrintCapbility(cap):
+	for i in range(cap.iTriggerDesc):
+		desc = cap.pTriggerDesc[i]
+		print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
+	for i in range(cap.iImageSizeDesc):
+		desc = cap.pImageSizeDesc[i]
+		print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
+	for i in range(cap.iClrTempDesc):
+		desc = cap.pClrTempDesc[i]
+		print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
+	for i in range(cap.iMediaTypeDesc):
+		desc = cap.pMediaTypeDesc[i]
+		print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
+	for i in range(cap.iFrameSpeedDesc):
+		desc = cap.pFrameSpeedDesc[i]
+		print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
+	for i in range(cap.iPackLenDesc):
+		desc = cap.pPackLenDesc[i]
+		print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
+	for i in range(cap.iPresetLut):
+		desc = cap.pPresetLutDesc[i]
+		print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
+	for i in range(cap.iAeAlmSwDesc):
+		desc = cap.pAeAlmSwDesc[i]
+		print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
+	for i in range(cap.iAeAlmHdDesc):
+		desc = cap.pAeAlmHdDesc[i]
+		print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
+	for i in range(cap.iBayerDecAlmSwDesc):
+		desc = cap.pBayerDecAlmSwDesc[i]
+		print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
+	for i in range(cap.iBayerDecAlmHdDesc):
+		desc = cap.pBayerDecAlmHdDesc[i]
+		print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
+
+main()