static PyObject *
decodeFile(PyObject *self, PyObject *args)
{
char *pFileName;
int option_iMaxBarcodesNumPerPage = -1;
int option_llBarcodeFormat = -1;
if (!PyArg_ParseTuple(args, "s", &pFileName)) {
return NULL;
}
pBarcodeResultArray pResults = NULL;
ReaderOptions option;
SetOptions(&option, option_iMaxBarcodesNumPerPage, option_llBarcodeFormat);
int ret = DBR_DecodeFile(
pFileName,
&option,
&pResults
);
if (ret == DBR_OK){
int count = pResults->iBarcodeCount;
pBarcodeResult* ppBarcodes = pResults->ppBarcodes;
pBarcodeResult tmp = NULL;
PyObject* list = PyList_New(count);
PyObject* result = NULL;
for (int i = 0; i < count; i++)
{
tmp = ppBarcodes[i];
result = PyString_FromString(tmp->pBarcodeData);
PyList_SetItem(list, i, Py_BuildValue("iN", (int)tmp->llFormat, result));
}
// release memory
DBR_FreeBarcodeResults(&pResults);
return list;
}
return Py_None;
}
/**
* Decode barcode from a file
*
*/
static PyObject *
decodeFile(PyObject *self, PyObject *args)
{
char *pFileName;
if (!PyArg_ParseTuple(args, "s", &pFileName)) {
return NULL;
}
// Dynamsoft Barcode Reader initialization
__int64 llFormat = (OneD | QR_CODE | PDF417 | DATAMATRIX);
int iMaxCount = 0x7FFFFFFF;
ReaderOptions ro = {0};
pBarcodeResultArray pResults = NULL;
ro.llBarcodeFormat = llFormat;
ro.iMaxBarcodesNumPerPage = iMaxCount;
// Barcode detection
int ret = DBR_DecodeFile(pFileName, &ro, &pResults);
printf("DecodeFile ret: %d\n", ret);
// Get results
int count = pResults->iBarcodeCount;
pBarcodeResult* ppBarcodes = pResults->ppBarcodes;
pBarcodeResult tmp = NULL;
PyObject* list = PyList_New(count); // The returned Python object
PyObject* result = NULL;
int i = 0;
for (; i < count; i++)
{
tmp = ppBarcodes[i];
result = PyString_FromString(tmp->pBarcodeData);
PyList_SetItem(list, i, Py_BuildValue("iN", (int)tmp->llFormat, result)); // Add results to list
}
// release memory
DBR_FreeBarcodeResults(&pResults);
return list;
}
VALUE decode(const char *pszImageFile)
{
VALUE ary = rb_ary_new();
__int64 llFormat = (OneD |QR_CODE);
int iMaxCount = 0x7FFFFFFF;
int iIndex = 0;
ReaderOptions ro = {0};
pBarcodeResultArray paryResult = NULL;
int iRet = -1;
char * pszTemp = NULL;
char * pszTemp1 = NULL;
struct timeval begin, end;
if (NULL == pszImageFile)
{
printf("The syntax of the command is incorrect.\n");
return 1;
}
// Set license
DBR_InitLicense("B8DF4560D0953299D5454C71A38D1FEB");
// Read barcode
gettimeofday(&begin, NULL);
ro.llBarcodeFormat = llFormat;
ro.iMaxBarcodesNumPerPage = iMaxCount;
iRet = DBR_DecodeFile(pszImageFile, &ro, &paryResult);
gettimeofday(&end, NULL);
// Output barcode result
pszTemp = (char*)malloc(4096);
if (iRet != DBR_OK)
{
sprintf(pszTemp, "Failed to read barcode: %s\r\n", DBR_GetErrorString(iRet));
printf("%s", pszTemp);
free(pszTemp);
return 1;
}
if (paryResult->iBarcodeCount == 0)
{
sprintf(pszTemp, "No barcode found. Total time spent: %.3f seconds.\r\n",
((float)((end.tv_sec * 1000 * 1000 + end.tv_usec) - (begin.tv_sec * 1000 * 1000 + begin.tv_usec))/(1000 * 1000)));
printf("%s", pszTemp);
DBR_FreeBarcodeResults(&paryResult);
return 0;
}
sprintf(pszTemp, "Total barcode(s) found: %d. Total time spent: %.3f seconds\r\n\r\n", paryResult->iBarcodeCount,
((float)((end.tv_sec * 1000 * 1000 + end.tv_usec) - (begin.tv_sec * 1000 * 1000 + begin.tv_usec))/(1000 * 1000)));
printf("%s", pszTemp);
for (iIndex = 0; iIndex < paryResult->iBarcodeCount; iIndex++)
{
sprintf(pszTemp, "Barcode %d:\r\n", iIndex + 1);
// printf("%s", pszTemp);
sprintf(pszTemp, "%s Page: %d\r\n", pszTemp, paryResult->ppBarcodes[iIndex]->iPageNum);
// printf("%s", pszTemp);
sprintf(pszTemp, "%s Type: %s\r\n", pszTemp, GetFormatStr(paryResult->ppBarcodes[iIndex]->llFormat));
// printf("%s", 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, "%s Value: %s\r\n", pszTemp, pszTemp1);
// printf("%s", 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("%s", pszTemp);
rb_ary_push(ary, rb_str_new_cstr(pszTemp));
}
free(pszTemp);
DBR_FreeBarcodeResults(&paryResult);
return ary;
}
/**
* Decode barcode from an image buffer. The supported data structure is DIB.
* It is necessary to re-construct input data for barcode detection.
*/
static PyObject *
decodeBuffer(PyObject *self, PyObject *args)
{
PyObject *o;
if (!PyArg_ParseTuple(args, "O", &o))
return NULL;
PyObject *ao = PyObject_GetAttrString(o, "__array_struct__");
PyObject *retval;
if ((ao == NULL) || !PyCObject_Check(ao)) {
PyErr_SetString(PyExc_TypeError, "object does not have array interface");
return NULL;
}
PyArrayInterface *pai = (PyArrayInterface*)PyCObject_AsVoidPtr(ao);
if (pai->two != 2) {
PyErr_SetString(PyExc_TypeError, "object does not have array interface");
Py_DECREF(ao);
return NULL;
}
// Construct data with header info and image data
char *buffer = (char*)pai->data; // The address of image data
int width = pai->shape[1]; // image width
int height = pai->shape[0]; // image height
int size = pai->strides[0] * pai->shape[0]; // image size = stride * height
char *total = (char *)malloc(size + 40); // buffer size = image size + header size
memset(total, 0, size + 40);
BITMAPINFOHEADER bitmap_info = {40, width, height, 0, 24, 0, size, 0, 0, 0, 0};
memcpy(total, &bitmap_info, 40);
// Copy image data to buffer from bottom to top
char *data = total + 40;
int stride = pai->strides[0];
int i = 1;
for (; i <= height; i++) {
memcpy(data, buffer + stride * (height - i), stride);
data += stride;
}
// Dynamsoft Barcode Reader initialization
__int64 llFormat = (OneD | QR_CODE | PDF417 | DATAMATRIX);
int iMaxCount = 0x7FFFFFFF;
ReaderOptions ro = {0};
pBarcodeResultArray pResults = NULL;
ro.llBarcodeFormat = llFormat;
ro.iMaxBarcodesNumPerPage = iMaxCount;
printf("width: %d, height: %d, size:%d\n", width, height, size);
int iRet = DBR_DecodeBuffer((unsigned char *)total, size + 40, &ro, &pResults);
printf("DBR_DecodeBuffer ret: %d\n", iRet);
free(total); // Do not forget to release the constructed buffer
// Get results
int count = pResults->iBarcodeCount;
pBarcodeResult* ppBarcodes = pResults->ppBarcodes;
pBarcodeResult tmp = NULL;
retval = PyList_New(count); // The returned Python object
PyObject* result = NULL;
i = 0;
for (; i < count; i++)
{
tmp = ppBarcodes[i];
result = PyString_FromString(tmp->pBarcodeData);
printf("result: %s\n", tmp->pBarcodeData);
PyList_SetItem(retval, i, Py_BuildValue("iN", (int)tmp->llFormat, result)); // Add results to list
}
// release memory
DBR_FreeBarcodeResults(&pResults);
Py_DECREF(ao);
return retval;
}
