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POMJPEG streaming with libcurl
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copied!<p>I want to receive JPEG images from an IP-camera over HTTP. I am using LIBCURL for this purpose in my C program. The camera returns a single image with the following URL:</p> <pre><code>"http://143.205.116.14?image&res=full&x0=0&y0=0&x1=2944&y1=1920" </code></pre> <p>Using LIBCURL, I can receive a single image and write it to a .jpg file in the callback function. However, for continuous streaming, the camera accepts a GET request as follows:</p> <pre><code>"GET /mjpeg&res=full&x0=0&y0=0&x1=2944&y1=1920 HTTP/1.1\r\n HOST:143.205.16.14\r\n\r\n" </code></pre> <p>I was wondering how do I specify this GET request in libcurl. Is it possible to use in curl_easy_setopt()? </p> <p>At present I use the following code to get a single image and save in the write_data callback function:</p> <pre><code>size_t write_data(void *ptr, size_t size, size_t nmemb, FILE *stream) { size_t written; written = fwrite(ptr, size, nmemb, stream); return written; } int main() { curl = curl_easy_init(); if(curl) { fp = fopen("C:\\trans.txt","wb"); curl_easy_setopt(curl, CURLOPT_URL, "http://143.205.116.14?image&res=full&x0=0&y0=0&x1=2944&y1=1920"); curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data); curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp); res = curl_easy_perform(curl); curl_easy_cleanup(curl); fclose(fp); } </code></pre> <p>How do I use the GET method so that the images are received continuously and saved by the callback function?</p>

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