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Quella777
2025-11-07 16:48:14 +08:00
parent 6bdd25e210
commit fa6bc474dc
2 changed files with 74 additions and 17 deletions
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VideoProsessing/bin/video
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91
VideoProsessing/src/main.cpp
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@@ -9,6 +9,7 @@
#include <iostream>
#include <opencv4/opencv2/opencv.hpp>
#include <mqtt/async_client.h>
#include <nlohmann/json.hpp>
using namespace std;
using namespace cv;
@@ -16,18 +17,30 @@ using namespace chrono_literals;
// 全局变量
VideoCapture cap(0);
Mat handleFrame;
const string mqtt_url = "tcp://192.168.12.1:1883";
const string clientId = "video_subData";
const string Topic = "/video/Data";
const int Qos = 1;
mqtt::async_client client(mqtt_url, clientId);
// 函数声明
//摄像头管道初始化
// mqtt初始化
void MqttInit();
// 摄像头管道初始化
bool videoInit(VideoCapture &cap);
//ffmpeg管道初始化
FILE* pipeInit();
//对单个帧进行处理
bool processFrame(VideoCapture &cap, FILE* pipe, Mat &frame, int64 &count, chrono::steady_clock::time_point &t0);
//资源清理
void cleanup(FILE* pipe, VideoCapture &cap);
//主循环
void mainLoop(VideoCapture &cap, FILE* pipe);
// ffmpeg管道初始化
FILE *pipeInit();
// 对单个帧进行处理
bool processFrame(VideoCapture &cap, FILE *pipe, Mat &frame, int64 &count, chrono::steady_clock::time_point &t0);
// 资源清理
void cleanup(FILE *pipe, VideoCapture &cap);
// 主循环
void mainLoop(VideoCapture &cap, FILE *pipe);
// mqtt接收订阅消息的回调
void getMsgCallback(mqtt::const_message_ptr msg);
// 绘制矩形方框和深度信息
void drawRect(int x, int y, int w, int h, double distance);
int main()
{
@@ -53,6 +66,34 @@ int main()
return 0;
}
// 绘制矩形方框和深度信息
void drawRect(int x, int y, int w, int h, double distance)
{
Rect r(x, y, w, h);
rectangle(handleFrame, r, Scalar(0, 255, 0), 2);
}
// mqtt初始化
void MqttInit()
{
// 设置回调
client.set_connected_handler([](const string &cause)
{ cout << "连接成功" << endl; });
client.set_message_callback(getMsgCallback);
client.connect()->wait();
client.subscribe(Topic, Qos)->wait();
}
// mqtt接收订阅消息的回调
void getMsgCallback(mqtt::const_message_ptr msg)
{
string payload = msg->to_string();
cout << payload << endl;
}
// 摄像头初始化
bool videoInit(VideoCapture &cap)
{
@@ -74,7 +115,7 @@ bool videoInit(VideoCapture &cap)
}
// FFmpeg管道初始化
FILE* pipeInit()
FILE *pipeInit()
{
FILE *pipe = popen(
"ffmpeg "
@@ -102,7 +143,7 @@ FILE* pipeInit()
}
// 处理单帧
bool processFrame(VideoCapture &cap, FILE* pipe, Mat &frame, int64 &count, chrono::steady_clock::time_point &t0)
bool processFrame(VideoCapture &cap, FILE *pipe, Mat &frame, int64 &count, chrono::steady_clock::time_point &t0)
{
// 读取帧
cap.read(frame);
@@ -112,8 +153,11 @@ bool processFrame(VideoCapture &cap, FILE* pipe, Mat &frame, int64 &count, chron
return false;
}
// 拷贝视频帧
handleFrame = frame;
// 添加提示文本
putText(frame, "press 'q' to quit", Point(0, 20),
putText(frame, "press 'q' to quit", Point(0, 20),
FONT_HERSHEY_SIMPLEX, 1.0, Scalar(0, 255, 0), 2, LINE_8);
// FPS计算与显示
@@ -121,7 +165,7 @@ bool processFrame(VideoCapture &cap, FILE* pipe, Mat &frame, int64 &count, chron
auto now = chrono::steady_clock::now();
if (chrono::duration_cast<chrono::milliseconds>(now - t0).count() / 1000.0 > 1.0)
{
string fps = "FPS:" + to_string(count);
string fps = "FPS:" + to_string(count);
count = 0;
t0 = now;
}
@@ -137,21 +181,34 @@ bool processFrame(VideoCapture &cap, FILE* pipe, Mat &frame, int64 &count, chron
}
// 主处理循环
void mainLoop(VideoCapture &cap, FILE* pipe)
void mainLoop(VideoCapture &cap, FILE *pipe)
{
int64 count = 0;
auto t0 = chrono::steady_clock::now();
Mat frame;
cout << "开始视频处理循环..." << endl;
// 创建全屏窗口
namedWindow("处理后的画面", WINDOW_NORMAL);
setWindowProperty("处理后的画面", WND_PROP_FULLSCREEN, WINDOW_FULLSCREEN);
// 获取屏幕尺寸（通过获取全屏窗口的实际大小）
cv::Rect windowRect = getWindowImageRect("处理后的画面");
int screenWidth = windowRect.width > 0 ? windowRect.width : 1920;
int screenHeight = windowRect.height > 0 ? windowRect.height : 1080;
Mat displayFrame; // 用于存储缩放后的画面
while (true)
{
if (!processFrame(cap, pipe, frame, count, t0))
{
break;
}
// 将 handleFrame 缩放到全屏尺寸
resize(handleFrame, displayFrame, Size(screenWidth, screenHeight));
imshow("处理后的画面", displayFrame);
// 检测退出键
if (cv::waitKey(1) == 'q')
{
@@ -162,7 +219,7 @@ void mainLoop(VideoCapture &cap, FILE* pipe)
}
// 资源清理
void cleanup(FILE* pipe, VideoCapture &cap)
void cleanup(FILE *pipe, VideoCapture &cap)
{
if (pipe)
{