C++ boost beast中的多部分边界
我正在尝试在本地托管服务器上以MJPEG格式流式传输视频中的帧。以下是我的代码:C++ boost beast中的多部分边界,c++,http,boost,webserver,boost-beast,C++,Http,Boost,Webserver,Boost Beast,我正在尝试在本地托管服务器上以MJPEG格式流式传输视频中的帧。以下是我的代码: #include <iostream> #include <string> #include <memory> #include <thread> #include <cstdlib> #include <opencv2/opencv.hpp> #include <opencv2/highgui/highgui.hpp> #inc
#include <iostream>
#include <string>
#include <memory>
#include <thread>
#include <cstdlib>
#include <opencv2/opencv.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/core/core.hpp>
#include <boost/beast/core.hpp>
#include <boost/beast/http.hpp>
#include <boost/beast/version.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <boost/config.hpp>
using boost::asio::ip::tcp;
namespace http = boost::beast::http;
cv::Mat frame;
std::vector<uchar> buffer;
int main(){
try{
boost::asio::io_context io_service;
tcp::acceptor acceptor(io_service, tcp::endpoint(tcp::v4(), 1112));
boost::system::error_code err;
tcp::socket socket(io_service);
acceptor.accept(socket);
boost::beast::flat_buffer request_buffer;
cv::VideoCapture cap("zz.mp4");
// http::request<http::string_body> req;
// http::read(socket, request_buffer, req, err);
// if(err){
// std::cerr << "read: " << err.message() << "\n";
// }
while(cap.isOpened()){
cap >> frame;
cv::imencode(".jpg", frame, buffer, std::vector<int> {cv::IMWRITE_JPEG_QUALITY, 95});
auto const size = buffer.size();
http::request<http::string_body> req;
http::read(socket, request_buffer, req, err);
if(err){
std::cerr << "read: " << err.message() << "\n";
break;
}
http::response<http::empty_body> res{http::status::ok, req.version()};
res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
// res.set(http::field::content_type, "multipart/x-mixed-replace; boundary=frame\r\n\r\n--frame\n");
res.set(http::field::content_type, "multipart/x-mixed-replace; boundary=frame");
res.content_length(size);
http::response_serializer<http::empty_body> sr{res};
http::write_header(socket, sr);
while(true){
http::response<http::vector_body<unsigned char>> res{std::piecewise_construct,
std::make_tuple(std::move(buffer)),
std::make_tuple(http::status::ok, req.version())};
res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
res.set(http::field::content_type, "image/jpeg");
res.content_length(size);
res.keep_alive(req.keep_alive());
http::write(socket, res, err);
}
}
}
catch(std::exception& e)
{
std::cerr << e.what() << std::endl;
return EXIT_FAILURE;
}
return 0;
}
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
使用boost::asio::ip::tcp;
命名空间http=boost::beast::http;
cv::垫架;
向量缓冲区;
int main(){
试一试{
boost::asio::io_上下文io_服务;
tcp::acceptor acceptor(io_服务,tcp::endpoint(tcp::v4(),1112));
boost::system::error\u code err;
tcp::套接字(io_服务);
接受(套接字);
boost::beast::flat\u buffer request\u buffer;
cv::视频捕获帽(“zz.mp4”);
//http::请求请求;
//http::read(套接字、请求缓冲区、请求、错误);
//如果(错误){
//std::cerr答案如下。我们需要使用boost::beast::http::field::body设置边界
#include <iostream>
#include <string>
#include <memory>
#include <thread>
#include <cstdlib>
#include <opencv2/opencv.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/core/core.hpp>
#include <boost/beast/core.hpp>
#include <boost/beast/http.hpp>
#include <boost/beast/version.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <boost/config.hpp>
using boost::asio::ip::tcp;
namespace http = boost::beast::http;
cv::Mat frame;
std::vector<uchar> buffer;
cv::Mat grayframe;
int main(){
try{
boost::asio::io_context io_service;
tcp::acceptor acceptor(io_service, tcp::endpoint(tcp::v4(), 1112));
boost::system::error_code err;
tcp::socket socket(io_service);
acceptor.accept(socket);
boost::beast::flat_buffer request_buffer;
cv::VideoCapture cap("zz.mp4");
http::request<http::string_body> req;
http::read(socket, request_buffer, req, err);
if(err){
std::cerr << "read: " << err.message() << "\n";
}
http::response<http::empty_body> res{http::status::ok, req.version()};
res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
res.set(http::field::content_type, "multipart/x-mixed-replace; boundary=frame");
res.keep_alive();
http::response_serializer<http::empty_body> sr{res};
http::write_header(socket, sr);
while(cap.isOpened()){
cap >> frame;
cv::cvtColor(frame, grayframe, CV_BGR2GRAY);
cv::imencode(".jpg", grayframe, buffer, std::vector<int> {cv::IMWRITE_JPEG_QUALITY, 95});
auto const size = buffer.size();
http::response<http::vector_body<unsigned char>> res{std::piecewise_construct,
std::make_tuple(std::move(buffer)),
std::make_tuple(http::status::ok, req.version())};
res.set(http::field::body, "--frame");
res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
res.set(http::field::content_type, "image/jpeg");
res.content_length(size);
res.keep_alive(req.keep_alive());
http::write(socket, res, err);
}
}
catch(std::exception& e)
{
std::cerr << e.what() << std::endl;
return EXIT_FAILURE;
}
return 0;
}
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
使用boost::asio::ip::tcp;
命名空间http=boost::beast::http;
cv::垫架;
向量缓冲区;
cv::Mat灰色框架;
int main(){
试一试{
boost::asio::io_上下文io_服务;
tcp::acceptor acceptor(io_服务,tcp::endpoint(tcp::v4(),1112));
boost::system::error\u code err;
tcp::套接字(io_服务);
接受(套接字);
boost::beast::flat\u buffer request\u buffer;
cv::视频捕获帽(“zz.mp4”);
http::请求请求;
http::read(套接字、请求缓冲区、请求、错误);
如果(错误){
标准:cerr