runAsyncBase64

Description

Asynchronous engine module execution API, results are delivered via callback

runAsyncBase64()

void runAsyncBase64(void* obj, C_RESULT_CALLBACK callback, char* openApiName, char* requestId, int imgWidth, int imgHeight, int colorSpace, char* imgData, char* requestOptionJsonStr)

Parameters

Name	Type	Description
obj	void*	'ArgoEngineApi' object pointer
callback	C_RESULT_CALLBACK	Callback function pointer to receive engine module execution results
openApiName	char*	Set name of engine module to use
requestId	char*	Request ID (value for request identification)
imgWidth	int	Image width
imgHeight	int	Image height
colorSpace	int	Image color type (RGB 0, RGBA 1, BGR 2, BGRA 3, YUV 4, GRAY 5)
imgData	char*	String with image pixel data encoded in base64
requestOptionJsonStr	char*	Json format string for setting options of engine module queried by getOpenApiOption

Return Value

None

Example

• Use OpenCV library
• Use sample 'ocr1.png'
• For runAsyncBase64 API, encode 'dataMat' to base64 and input for use

std::string callbackResultJson = "";
void resultCallbackFunc(char* resultJsonStr, int resultJsonLength) {
callbackResultJson = std::string(resultJsonStr, resultJsonLength);
}
cv::Mat temp = cv::imread("ocr1.png", cv::IMREAD_COLOR);
std::string requestOptionJsonStr = “{}";
char *dataMat = (char *)temp.data;
char *resultJsonStr = nullptr;
int resultSize = run(obj,
&resultCallbackFunc,
(char *)openApiName.c_str(),
(char *)requestId.c_str(),
temp.cols,
temp.rows,
2,
dataMat,
(char *)requestOptionJsonStr.c_str());