int main(int, char**)
{
// Open the default camera
VideoCapture cap(0);
if (!cap.isOpened())
return -1;
const char *windowName = "BarcodeReader";
namedWindow(windowName, 1);
// Initialize Dynamsoft Barcode Reader
CBarcodeReader reader;
reader.InitLicense("38B9B94D8B0E2B41660D13B593BE6EF9");
__int64 llFormat = (OneD | QR_CODE | PDF417 | DATAMATRIX);
int iMaxCount = 0x7FFFFFFF;
ReaderOptions ro = { 0 };
ro.llBarcodeFormat = llFormat;
ro.iMaxBarcodesNumPerPage = iMaxCount;
reader.SetReaderOptions(ro);
Mat frame;
for (;;)
{
cap >> frame; // Get a new frame from camera
imshow(windowName, frame); // Display the new frame
read(frame, reader);
if (waitKey(30) >= 0)
break;
}
return 0;
}
int main(int argc, const char* argv[])
{
// Parse command
__int64 llFormat = (OneD|QR_CODE);
const char * pszImageFile = NULL;
int iMaxCount = 0x7FFFFFFF;
int iIndex = 0;
ReaderOptions ro = {0};
int iRet = -1;
char * pszTemp = NULL;
char * pszTemp1 = NULL;
unsigned __int64 ullTimeBegin = 0;
unsigned __int64 ullTimeEnd = 0;
if (argc <= 1)
{
PrintHelp();
return 1;
}
for (iIndex = 1; iIndex < argc; iIndex ++)
{
if (strcmpi(argv[iIndex], "-help") == 0)
{
PrintHelp();
return 0;
}
if (strcmpi(argv[iIndex], "-f") == 0)
{// parse format
iIndex ++;
if (iIndex >= argc)
{
printf("The syntax of the command is incorrect.\r\n");
return 1;
}
llFormat = GetFormat(argv[iIndex]);
if (llFormat == 0)
{
printf("The syntax of the command is incorrect.\r\n");
return 1;
}
continue;
}
if (strcmpi(argv[iIndex], "-n") == 0)
{// parse format
iIndex ++;
if (iIndex >= argc)
{
printf("The syntax of the command is incorrect.\r\n");
return 1;
}
iMaxCount = atoi(argv[iIndex]);
continue;
}
if (NULL == pszImageFile)
pszImageFile = argv[iIndex];
}
if (NULL == pszImageFile)
{
printf("The syntax of the command is incorrect.\r\n");
return 1;
}
// Set license
CBarcodeReader reader;
reader.InitLicense("<Put your license key here>");
// Read barcode
ullTimeBegin = GetTickCount();
ro.llBarcodeFormat = llFormat;
ro.iMaxBarcodesNumPerPage = iMaxCount;
reader.SetReaderOptions(ro);
iRet = reader.DecodeFile(pszImageFile);
ullTimeEnd = GetTickCount();
// Output barcode result
pszTemp = (char*)malloc(4096);
if (iRet != DBR_OK)
{
sprintf(pszTemp, "Failed to read barcode: %s\r\n", DBR_GetErrorString(iRet));
printf(pszTemp);
free(pszTemp);
return 1;
}
pBarcodeResultArray paryResult = NULL;
reader.GetBarcodes(&paryResult);
if (paryResult->iBarcodeCount == 0)
{
sprintf(pszTemp, "No barcode found. Total time spent: %.3f seconds.\r\n", ((float)(ullTimeEnd - ullTimeBegin)/1000));
printf(pszTemp);
free(pszTemp);
reader.FreeBarcodeResults(&paryResult);
return 0;
}
sprintf(pszTemp, "Total barcode(s) found: %d. Total time spent: %.3f seconds\r\n\r\n", paryResult->iBarcodeCount, ((float)(ullTimeEnd - ullTimeBegin)/1000));
printf(pszTemp);
for (iIndex = 0; iIndex < paryResult->iBarcodeCount; iIndex++)
{
sprintf(pszTemp, "Barcode %d:\r\n", iIndex + 1);
printf(pszTemp);
sprintf(pszTemp, " Page: %d\r\n", paryResult->ppBarcodes[iIndex]->iPageNum);
printf(pszTemp);
sprintf(pszTemp, " Type: %s\r\n", GetFormatStr(paryResult->ppBarcodes[iIndex]->llFormat));
printf(pszTemp);
pszTemp1 = (char*)malloc(paryResult->ppBarcodes[iIndex]->iBarcodeDataLength + 1);
memset(pszTemp1, 0, paryResult->ppBarcodes[iIndex]->iBarcodeDataLength + 1);
memcpy(pszTemp1, paryResult->ppBarcodes[iIndex]->pBarcodeData, paryResult->ppBarcodes[iIndex]->iBarcodeDataLength);
sprintf(pszTemp, " Value: %s\r\n", pszTemp1);
printf(pszTemp);
free(pszTemp1);
sprintf(pszTemp, " Region: {Left: %d, Top: %d, Width: %d, Height: %d}\r\n\r\n",
paryResult->ppBarcodes[iIndex]->iLeft, paryResult->ppBarcodes[iIndex]->iTop,
paryResult->ppBarcodes[iIndex]->iWidth, paryResult->ppBarcodes[iIndex]->iHeight);
printf(pszTemp);
}
free(pszTemp);
reader.FreeBarcodeResults(&paryResult);
return 0;
}
void read(Mat &image, CBarcodeReader &reader)
{
int elemSize = image.elemSize();
int size = image.total() * elemSize;
// Get image data
char *imageData = (char *)image.data;
// Combine header info and image data
int width = image.cols, height = image.rows;
char *total = (char *)malloc(size + 40);
if (!total)
{
printf("Failed to allocate memory");
return;
}
memset(total, 0, size + 40);
BITMAPINFOHEADER bitmap_info = { 40, width, height, 0, 24, 0, size, 0, 0, 0, 0 };
memcpy(total, &bitmap_info, 40);
char *data = total + 40;
// Reverse the image buffer from bottom to top
width *= 3;
for (int i = 1; i <= height; i++)
{
memcpy(data, imageData + width * (height - i), width);
data += width;
}
// Read barcode
unsigned __int64 ullTimeBegin = 0;
unsigned __int64 ullTimeEnd = 0;
ullTimeBegin = GetTickCount();
int iRet = reader.DecodeBuffer((unsigned char*)total, size + 40);
ullTimeEnd = GetTickCount();
//printf("time cost: %lld\n", (ullTimeEnd - ullTimeBegin));
// Output barcode result
char * pszTemp = (char*)malloc(4096);
if (iRet != DBR_OK && iRet != DBRERR_LICENSE_EXPIRED && iRet != DBRERR_QR_LICENSE_INVALID &&
iRet != DBRERR_1D_LICENSE_INVALID && iRet != DBRERR_PDF417_LICENSE_INVALID && iRet != DBRERR_DATAMATRIX_LICENSE_INVALID)
{
sprintf(pszTemp, "Failed to read barcode: %s\r\n", DBR_GetErrorString(iRet));
printf(pszTemp);
free(pszTemp);
free(total);
return;
}
pBarcodeResultArray paryResult = NULL;
reader.GetBarcodes(&paryResult);
if (paryResult->iBarcodeCount > 0)
{
for (int iIndex = 0; iIndex < paryResult->iBarcodeCount; iIndex++)
{
sprintf(pszTemp, "Barcode %d:\r\n", iIndex + 1);
printf(pszTemp);
sprintf(pszTemp, " Page: %d\r\n", paryResult->ppBarcodes[iIndex]->iPageNum);
printf(pszTemp);
sprintf(pszTemp, " Type: %s\r\n", GetFormatStr(paryResult->ppBarcodes[iIndex]->llFormat));
printf(pszTemp);
char *pszTemp1 = (char*)malloc(paryResult->ppBarcodes[iIndex]->iBarcodeDataLength + 1);
memset(pszTemp1, 0, paryResult->ppBarcodes[iIndex]->iBarcodeDataLength + 1);
memcpy(pszTemp1, paryResult->ppBarcodes[iIndex]->pBarcodeData, paryResult->ppBarcodes[iIndex]->iBarcodeDataLength);
sprintf(pszTemp, " Value: %s\r\n", pszTemp1);
printf(pszTemp);
free(pszTemp1);
sprintf(pszTemp, " Region: {Left: %d, Top: %d, Width: %d, Height: %d}\r\n\r\n",
paryResult->ppBarcodes[iIndex]->iLeft, paryResult->ppBarcodes[iIndex]->iTop,
paryResult->ppBarcodes[iIndex]->iWidth, paryResult->ppBarcodes[iIndex]->iHeight);
printf(pszTemp);
}
}
free(pszTemp);
reader.FreeBarcodeResults(&paryResult);
free(total);
}
