From 101de2b07aa2feefa74f7e73876fd5cc8fc696cf Mon Sep 17 00:00:00 2001
From: AlexeyAB <alexeyab84@gmail.com>
Date: Tue, 20 Mar 2018 21:40:01 +0000
Subject: [PATCH] More stable web-cam
---
src/http_stream.cpp | 39 ++++++++++++++++++++++++++++++++++++---
1 files changed, 36 insertions(+), 3 deletions(-)
diff --git a/src/http_stream.cpp b/src/http_stream.cpp
index 4392a27..ca57728 100644
--- a/src/http_stream.cpp
+++ b/src/http_stream.cpp
@@ -37,6 +37,7 @@
#define SOCKET_ERROR -1
#endif /* _WIN32 */
+#include <cstdio>
#include <vector>
#include <iostream>
using std::cerr;
@@ -56,7 +57,7 @@
int timeout; // master sock timeout, shutdown after timeout millis.
int quality; // jpeg compression [1..100]
- int _write(int sock, char *s, int len)
+ int _write(int sock, char const*const s, int len)
{
if (len < 1) { len = strlen(s); }
return ::send(sock, s, len, 0);
@@ -128,7 +129,7 @@
params.push_back(IMWRITE_JPEG_QUALITY);
params.push_back(quality);
cv::imencode(".jpg", frame, outbuf, params);
- unsigned int outlen = outbuf.size();
+ size_t outlen = outbuf.size();
#ifdef _WIN32
for (unsigned i = 0; i<rread.fd_count; i++)
@@ -169,7 +170,7 @@
else // existing client, just stream pix
{
char head[400];
- sprintf(head, "--mjpegstream\r\nContent-Type: image/jpeg\r\nContent-Length: %lu\r\n\r\n", outlen);
+ sprintf(head, "--mjpegstream\r\nContent-Type: image/jpeg\r\nContent-Length: %zu\r\n\r\n", outlen);
_write(s, head, 0);
int n = _write(s, (char*)(&outbuf[0]), outlen);
//cerr << "known client " << s << " " << n << endl;
@@ -194,4 +195,36 @@
std::cout << " MJPEG-stream sent. \n";
}
+
+CvCapture* get_capture_webcam(int index) {
+ CvCapture* cap = NULL;
+ try {
+ cap = (CvCapture*)new cv::VideoCapture(index);
+ //((cv::VideoCapture*)cap)->set(CV_CAP_PROP_FRAME_WIDTH, 1280);
+ //((cv::VideoCapture*)cap)->set(CV_CAP_PROP_FRAME_HEIGHT, 960);
+ }
+ catch (...) {
+ std::cout << " Error: Web-camera " << index << " can't be opened! \n";
+ }
+ return cap;
+}
+
+IplImage* get_webcam_frame(CvCapture *cap) {
+ IplImage* src = NULL;
+ try {
+ cv::VideoCapture &cpp_cap = *(cv::VideoCapture *)cap;
+ cv::Mat frame;
+ if (cpp_cap.isOpened()) {
+ cpp_cap >> frame;
+ src = cvCreateImage(cvSize(frame.cols, frame.rows), 8, frame.channels());
+ *src = frame;
+ }
+ }
+ catch (...) {
+ std::cout << " Web-camera stoped! \n";
+ }
+ return src;
+}
+
+
#endif // OPENCV
\ No newline at end of file
--
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