修改定时读取,修改代码目录

This commit is contained in:
lijun 2025-01-12 15:18:58 +08:00
parent b16147d271
commit fab3bb77c6
3 changed files with 152 additions and 137 deletions

View File

@ -2,6 +2,7 @@ package handler
import ( import (
"VideoStream/proto" "VideoStream/proto"
"VideoStream/service"
"fmt" "fmt"
"github.com/gin-gonic/gin" "github.com/gin-gonic/gin"
"gocv.io/x/gocv" "gocv.io/x/gocv"
@ -46,7 +47,7 @@ func GetVideoStream(c *gin.Context) {
c.Stream(func(w io.Writer) bool { c.Stream(func(w io.Writer) bool {
var count int var count int
for { for {
frame, cnt := GetDeviceCurrentFrame(req.ID) frame, cnt := service.GetDeviceCurrentFrame(req.ID)
if cnt == count { if cnt == count {
time.Sleep(50 * time.Millisecond) time.Sleep(50 * time.Millisecond)
continue continue

144
main.go
View File

@ -3,24 +3,15 @@ package main
import ( import (
"VideoStream/handler" "VideoStream/handler"
"VideoStream/proto" "VideoStream/proto"
"VideoStream/service"
"VideoStream/worker" "VideoStream/worker"
"fmt"
"github.com/gin-gonic/gin" "github.com/gin-gonic/gin"
"github.com/robfig/cron/v3" "github.com/robfig/cron/v3"
"gocv.io/x/gocv" "gocv.io/x/gocv"
"image"
"image/color"
"log" "log"
"net/http"
"sync" "sync"
"time"
) )
var DeviceRWMap = make(map[int]sync.RWMutex)
var DeviceCurrentFrameMap = make(map[int]gocv.Mat)
var DeviceFrameCount = make(map[int]int)
var DeviceIsStop = make(map[int]bool)
func main() { func main() {
gin.SetMode(gin.ReleaseMode) gin.SetMode(gin.ReleaseMode)
r := gin.Default() r := gin.Default()
@ -54,13 +45,14 @@ func init() {
panic("failed to read config file:" + err.Error()) panic("failed to read config file:" + err.Error())
} }
for _, device := range proto.Config.DeviceInfo { for _, device := range proto.Config.DeviceInfo {
DeviceRWMap[device.ID] = sync.RWMutex{} service.DeviceRWMap[device.ID] = sync.RWMutex{}
DeviceCurrentFrameMap[device.ID] = gocv.NewMat() service.DeviceCurrentFrameMap[device.ID] = gocv.NewMat()
} }
} }
func myTask() { func myTask() {
log.Println("每10秒执行一次") log.Println("每10秒执行一次")
ReadConfigAndSetSystem()
} }
func ReadConfigAndSetSystem() { func ReadConfigAndSetSystem() {
@ -70,130 +62,10 @@ func ReadConfigAndSetSystem() {
if err != nil { if err != nil {
panic("failed to read config file:" + err.Error()) panic("failed to read config file:" + err.Error())
} }
//检测是否需要获取设备流 //检测是否需要获取设备流,如果需要则开启
}
func SetDeviceCurrentFrame(frame gocv.Mat, device_id int) error {
//获取读写锁
mutex, ok := DeviceRWMap[device_id]
if !ok {
return fmt.Errorf("设备:%s 读写锁不存在", device_id)
}
mutex.Lock()
defer mutex.Unlock()
//设置当前帧
DeviceCurrentFrameMap[device_id] = frame
DeviceFrameCount[device_id]++
return nil
}
func GetDeviceCurrentFrame(device_id int) (gocv.Mat, int) {
//获取读写锁
mutex, ok := DeviceRWMap[device_id]
if !ok {
return gocv.NewMat(), -1
}
mutex.RLock()
defer mutex.RUnlock()
//获取当前帧
return DeviceCurrentFrameMap[device_id], DeviceFrameCount[device_id]
}
func getVideoFrame(device proto.DeviceInfo) {
webcam, err := gocv.OpenVideoCapture(device.Stream)
if err != nil {
fmt.Printf("设备:%s 错误: 无法打开视频流err: %v\n", device.ID, err)
return
}
defer webcam.Close()
// 字体相关设置对应OpenCV默认字体等这里简化处理实际可按需求调整
font := gocv.FontHersheySimplex
fontScale := 0.5
fontColor := color.RGBA{G: 255}
lineType := 2
z := 0
for {
if device.LogFrame > 0 && z%device.LogFrame == 0 {
fmt.Printf("设备:%s 当前帧: %d\n", device.ID, z)
}
if device.NextStop {
break
}
frame := gocv.NewMat()
ok := webcam.Read(&frame)
if !ok {
fmt.Printf("设备:%s 错误: 无法从视频流中读取帧\n", device)
break
}
if frame.Empty() {
fmt.Printf("设备:%s 错误: 无法从视频流中读取帧\n", device)
//等待50ms
time.Sleep(50 * time.Millisecond)
continue
}
height := frame.Rows()
width := frame.Cols()
if height < device.CheckFrameHeight || width < device.CheckFrameWidth {
fmt.Printf("设备:%s 帧尺寸已改变\n", device)
break
}
currentTime := time.Now().Format("2006-01-02 15:04:05")
gocv.PutText(&frame, currentTime, image.Point{10, 20}, font, fontScale, fontColor, lineType)
//需要将帧付给全局变量
err := SetDeviceCurrentFrame(frame, device.ID)
if err != nil {
fmt.Printf("设备:%s 错误: 无法设置当前帧\n", device)
}
z++
}
}
// 发起get请求,返回响应状态码
func Get(url string) int {
req, err := http.NewRequest("GET", url, nil)
var client = &http.Client{}
if err != nil {
return 500
}
resp, err := client.Do(req)
if err != nil {
return 500
}
return resp.StatusCode
}
func GetVideoStream(id int) {
for {
var device proto.DeviceInfo
var index int
//获取设备信息
for i, device1 := range proto.Config.DeviceInfo {
if device1.ID == id {
device = device1
break
}
index = i
}
if index == len(proto.Config.DeviceInfo) {
//设备不存在
log.Println("device:", id, " not found")
break
}
if device.NextStop {
DeviceIsStop[id] = true
break
}
//设置设备控制信息
status := Get(device.Control)
DeviceIsStop[id] = false
log.Println("device:", device.ID, " set control info status:", status)
getVideoFrame(device)
}
}
func DoGetVideoStream() {
for _, device := range proto.Config.DeviceInfo { for _, device := range proto.Config.DeviceInfo {
go GetVideoStream(device.ID) if service.DeviceIsStop[device.ID] == false {
go service.GetVideoStream(device.ID)
}
} }
} }

View File

@ -1 +1,143 @@
package service package service
import (
"VideoStream/proto"
"fmt"
"gocv.io/x/gocv"
"image"
"image/color"
"log"
"net/http"
"sync"
"time"
)
var DeviceRWMap = make(map[int]sync.RWMutex)
var DeviceCurrentFrameMap = make(map[int]gocv.Mat)
var DeviceFrameCount = make(map[int]int)
var DeviceIsStop = make(map[int]bool)
func SetDeviceCurrentFrame(frame gocv.Mat, device_id int) error {
//获取读写锁
mutex, ok := DeviceRWMap[device_id]
if !ok {
return fmt.Errorf("设备:%s 读写锁不存在", device_id)
}
mutex.Lock()
defer mutex.Unlock()
//设置当前帧
DeviceCurrentFrameMap[device_id] = frame
DeviceFrameCount[device_id]++
return nil
}
func GetDeviceCurrentFrame(device_id int) (gocv.Mat, int) {
//获取读写锁
mutex, ok := DeviceRWMap[device_id]
if !ok {
return gocv.NewMat(), -1
}
mutex.RLock()
defer mutex.RUnlock()
//获取当前帧
return DeviceCurrentFrameMap[device_id], DeviceFrameCount[device_id]
}
func getVideoFrame(device proto.DeviceInfo) {
webcam, err := gocv.OpenVideoCapture(device.Stream)
if err != nil {
fmt.Printf("设备:%s 错误: 无法打开视频流err: %v\n", device.ID, err)
return
}
defer webcam.Close()
// 字体相关设置对应OpenCV默认字体等这里简化处理实际可按需求调整
font := gocv.FontHersheySimplex
fontScale := 0.5
fontColor := color.RGBA{G: 255}
lineType := 2
z := 0
for {
if device.LogFrame > 0 && z%device.LogFrame == 0 {
fmt.Printf("设备:%s 当前帧: %d\n", device.ID, z)
}
if device.NextStop {
break
}
frame := gocv.NewMat()
ok := webcam.Read(&frame)
if !ok {
fmt.Printf("设备:%s 错误: 无法从视频流中读取帧\n", device)
break
}
if frame.Empty() {
fmt.Printf("设备:%s 错误: 无法从视频流中读取帧\n", device)
//等待50ms
time.Sleep(50 * time.Millisecond)
continue
}
height := frame.Rows()
width := frame.Cols()
if height < device.CheckFrameHeight || width < device.CheckFrameWidth {
fmt.Printf("设备:%s 帧尺寸已改变\n", device)
break
}
currentTime := time.Now().Format("2006-01-02 15:04:05")
gocv.PutText(&frame, currentTime, image.Point{10, 20}, font, fontScale, fontColor, lineType)
//需要将帧付给全局变量
err := SetDeviceCurrentFrame(frame, device.ID)
if err != nil {
fmt.Printf("设备:%s 错误: 无法设置当前帧\n", device)
}
z++
}
}
// 发起get请求,返回响应状态码
func Get(url string) int {
req, err := http.NewRequest("GET", url, nil)
var client = &http.Client{}
if err != nil {
return 500
}
resp, err := client.Do(req)
if err != nil {
return 500
}
return resp.StatusCode
}
func GetVideoStream(id int) {
for {
var device proto.DeviceInfo
var index int
//获取设备信息
for i, device1 := range proto.Config.DeviceInfo {
if device1.ID == id {
device = device1
break
}
index = i
}
if index == len(proto.Config.DeviceInfo) {
//设备不存在
log.Println("device:", id, " not found")
break
}
if device.NextStop {
DeviceIsStop[id] = true
break
}
//设置设备控制信息
status := Get(device.Control)
DeviceIsStop[id] = false
log.Println("device:", device.ID, " set control info status:", status)
getVideoFrame(device)
}
}
func DoGetVideoStream() {
for _, device := range proto.Config.DeviceInfo {
go GetVideoStream(device.ID)
}
}