83 / 177
Copyright © 2018 - 2020 Toshiba Teli Corporation, All rights reserved.
https://www.toshiba-teli.co.jp/en/
DAA00195C
// 1.Select an Image Buffer mode
uint32_t dat = 1;
Cam_WriteReg(s_hCam, 0x20307C, 1, &dat);
// 2.Open and Start image stream.
// 2.1.Set Trigger mode
SetCamTriggerMode(s_hCam, true);
SetCamTriggerSource(s_hCam, CAM_TRIGGER_SOFTWARE);
// 2.2.Open Stream
s_hStrmEvt = CreateEvent(NULL, FALSE, FALSE, NULL);
Strm_OpenSimple(s_hCam, &s_hStrm, &s_uiImgBufSize, s_hStrmEvt);
s_pucImgBuf = (uint8_t *)VirtualAlloc(NULL, s_uiImgBufSize, MEM_RESERVE
| MEM_COMMIT, PAGE_EXECUTE_READWRITE);
// 2.3.Stream Start
Strm_Start(s_hStrm);
// 2.4.Execute Software Trigger
ExecuteCamSoftwareTrigger(s_hCam);
// 3.Read the number of frames in Image Buffer.
uint32_t count = 0;
while(count==0)
{
Cam_ReadReg(s_hCam, 0x20309C, 1, &count);
}
// 4.Read Image from Image Buffer. AcquisitionCommand = 10 : Image Buffer Read
dat = 10;
Cam_WriteReg(s_hCam, 0x20303C, 1, &dat);
// 5.Receive Image from Image Buffer
uint32_t uiSize = s_uiImgBufSize;
WaitForSingleObject(s_hStrmEvt, 1000);
Strm_ReadCurrentImage(s_hStrm, s_pucImgBuf, &uiSize, NULL);
// 6.Stop and Close image stream.
// 6.1.Stream Stop
Strm_Stop(s_hStrm);
// 6.2.Close Stream
Strm_Close(s_hStrm);
CloseHandle(s_hStrmEvt);
VirtualFree(s_pucImgBuf, 0, MEM_RELEASE);
Please refer to [Camera functions] in [TeliCamAPI Library manual] for more detail.
● Note
The maximum number of frames storable depends on the image size. (maximum 256MByte.)
The number of frames to be transferred by ‘ImageBufferRead’ command is determined by
‘AcquisitionFrameCount’.
Changing ‘ImageBufferMode’ register value is invalid during image stream data output.