ff7cb2c8f3
- 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.
112 lines
4.0 KiB
Python
112 lines
4.0 KiB
Python
#coding=utf-8
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import mvsdk
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def main():
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# 枚举相机
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DevList = mvsdk.CameraEnumerateDevice()
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nDev = len(DevList)
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if nDev < 1:
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print("No camera was found!")
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return
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for i, DevInfo in enumerate(DevList):
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print("{}: {} {}".format(i, DevInfo.GetFriendlyName(), DevInfo.GetPortType()))
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i = 0 if nDev == 1 else int(input("Select camera: "))
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DevInfo = DevList[i]
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print(DevInfo)
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# 打开相机
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hCamera = 0
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try:
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hCamera = mvsdk.CameraInit(DevInfo, -1, -1)
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except mvsdk.CameraException as e:
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print("CameraInit Failed({}): {}".format(e.error_code, e.message) )
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return
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# 获取相机特性描述
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cap = mvsdk.CameraGetCapability(hCamera)
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PrintCapbility(cap)
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# 判断是黑白相机还是彩色相机
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monoCamera = (cap.sIspCapacity.bMonoSensor != 0)
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# 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
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if monoCamera:
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mvsdk.CameraSetIspOutFormat(hCamera, mvsdk.CAMERA_MEDIA_TYPE_MONO8)
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# 相机模式切换成连续采集
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mvsdk.CameraSetTriggerMode(hCamera, 0)
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# 手动曝光，曝光时间30ms
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mvsdk.CameraSetAeState(hCamera, 0)
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mvsdk.CameraSetExposureTime(hCamera, 30 * 1000)
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# 让SDK内部取图线程开始工作
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mvsdk.CameraPlay(hCamera)
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# 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
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FrameBufferSize = cap.sResolutionRange.iWidthMax * cap.sResolutionRange.iHeightMax * (1 if monoCamera else 3)
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# 分配RGB buffer，用来存放ISP输出的图像
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# 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）
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pFrameBuffer = mvsdk.CameraAlignMalloc(FrameBufferSize, 16)
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# 从相机取一帧图片
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try:
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pRawData, FrameHead = mvsdk.CameraGetImageBuffer(hCamera, 2000)
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mvsdk.CameraImageProcess(hCamera, pRawData, pFrameBuffer, FrameHead)
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mvsdk.CameraReleaseImageBuffer(hCamera, pRawData)
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# 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
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# 该示例中我们只是把图片保存到硬盘文件中
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status = mvsdk.CameraSaveImage(hCamera, "./grab.bmp", pFrameBuffer, FrameHead, mvsdk.FILE_BMP, 100)
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if status == mvsdk.CAMERA_STATUS_SUCCESS:
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print("Save image successfully. image_size = {}X{}".format(FrameHead.iWidth, FrameHead.iHeight) )
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else:
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print("Save image failed. err={}".format(status) )
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except mvsdk.CameraException as e:
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print("CameraGetImageBuffer failed({}): {}".format(e.error_code, e.message) )
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# 关闭相机
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mvsdk.CameraUnInit(hCamera)
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# 释放帧缓存
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mvsdk.CameraAlignFree(pFrameBuffer)
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def PrintCapbility(cap):
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for i in range(cap.iTriggerDesc):
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desc = cap.pTriggerDesc[i]
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print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
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for i in range(cap.iImageSizeDesc):
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desc = cap.pImageSizeDesc[i]
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print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
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for i in range(cap.iClrTempDesc):
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desc = cap.pClrTempDesc[i]
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print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
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for i in range(cap.iMediaTypeDesc):
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desc = cap.pMediaTypeDesc[i]
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print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
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for i in range(cap.iFrameSpeedDesc):
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desc = cap.pFrameSpeedDesc[i]
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print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
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for i in range(cap.iPackLenDesc):
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desc = cap.pPackLenDesc[i]
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print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
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for i in range(cap.iPresetLut):
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desc = cap.pPresetLutDesc[i]
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print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
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for i in range(cap.iAeAlmSwDesc):
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desc = cap.pAeAlmSwDesc[i]
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print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
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for i in range(cap.iAeAlmHdDesc):
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desc = cap.pAeAlmHdDesc[i]
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print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
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for i in range(cap.iBayerDecAlmSwDesc):
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desc = cap.pBayerDecAlmSwDesc[i]
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print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
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for i in range(cap.iBayerDecAlmHdDesc):
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desc = cap.pBayerDecAlmHdDesc[i]
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print("{}: {}".format(desc.iIndex, desc.GetDescription()) )
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main()
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