CANVAS VIDEO

From: acevest Date: Sun, 17 Jan 2021 05:10:00 +0000 (+0800) Subject: add esp32camweb X-Git-Url: http://zhaoyanbai.com/repos/FAQ?a=commitdiff_plain;h=8838ca2dc16084ef63234ffdd7d295258c3c07fa;p=acecode.git add esp32camweb --- diff --git a/projects/esp32_video_stream/esp32cam/esp32cam.ino b/projects/esp32_video_stream/esp32cam/esp32cam.ino index 0086a24..08ccb51 100644 --- a/projects/esp32_video_stream/esp32cam/esp32cam.ino +++ b/projects/esp32_video_stream/esp32cam/esp32cam.ino @@ -10,7 +10,7 @@ typedef struct { const char *pwd; } WiFiItem_t; -const char* websockets_server_host = "10.0.0.6"; +const char* websockets_server_host = "10.0.0.10"; const uint16_t websockets_server_port = 80; WiFiItem_t WiFiTable[] = { diff --git a/projects/esp32_video_stream/esp32camweb/canvas.html b/projects/esp32_video_stream/esp32camweb/canvas.html new file mode 100644 index 0000000..eb4fce0 --- /dev/null +++ b/projects/esp32_video_stream/esp32camweb/canvas.html @@ -0,0 +1,86 @@ + + + + + + CANVAS VIDEO + + + + +

+ + + + + diff --git a/projects/esp32_video_stream/esp32camweb/go.mod b/projects/esp32_video_stream/esp32camweb/go.mod new file mode 100644 index 0000000..64471b9 --- /dev/null +++ b/projects/esp32_video_stream/esp32camweb/go.mod @@ -0,0 +1,5 @@ +module esp32camweb + +go 1.14 + +require github.com/gorilla/websocket v1.4.2 diff --git a/projects/esp32_video_stream/esp32camweb/go.sum b/projects/esp32_video_stream/esp32camweb/go.sum new file mode 100644 index 0000000..85efffd --- /dev/null +++ b/projects/esp32_video_stream/esp32camweb/go.sum @@ -0,0 +1,2 @@ +github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc= +github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE= diff --git a/projects/esp32_video_stream/esp32camweb/main.go b/projects/esp32_video_stream/esp32camweb/main.go new file mode 100644 index 0000000..18a7974 --- /dev/null +++ b/projects/esp32_video_stream/esp32camweb/main.go @@ -0,0 +1,151 @@ +/* + * ------------------------------------------------------------------------ + * File Name: main.go + * Author: Zhao Yanbai + * 2021-01-16 23:01:01 Saturday CST + * Description: none + * ------------------------------------------------------------------------ + */ + +package main + +import ( + "fmt" + "html/template" + "log" + "net/http" + "time" + + "github.com/gorilla/websocket" +) + +var upgrader = websocket.Upgrader{ + ReadBufferSize: 102400, + WriteBufferSize: 102400, + + // è§£å³è·¨åé®é¢ + CheckOrigin: func(r *http.Request) bool { + return true + }, +} + +var frameChan chan []byte + +func init() { + frameChan = make(chan []byte, 32) +} + +const ( + partBOUNDARY = "123456789000000000000987654321" + streamContentType = "multipart/x-mixed-replace;boundary=" + partBOUNDARY + streamBoundary = "\r\n--" + partBOUNDARY + "\r\n" + streamPart = "Content-Type: image/jpeg\r\nContent-Length: %d\r\n\r\n" +) + +func watchHandler(w http.ResponseWriter, r *http.Request) { + var err error + w.Header().Set("Content-Type", streamContentType) + w.Header().Set("Access-Control-Allow-Origin", "*") + + flusher, _ := w.(http.Flusher) + + for i := 0; ; i++ { + var data []byte + select { + case data = <-frameChan: + fmt.Fprintf(w, "%v", streamBoundary) + fmt.Fprintf(w, streamPart, i) + _, err = w.Write(data) + flusher.Flush() + if err != nil { + break + } + default: + continue + } + + } +} + +func videoHandler(w http.ResponseWriter, r *http.Request) { + var err error + var ws *websocket.Conn + + log.Printf("video\n") + ws, err = upgrader.Upgrade(w, r, nil) + if err != nil { + log.Printf("err: %v", err) + return + } + + defer ws.Close() + + for { + t, p, e := ws.ReadMessage() + log.Printf("type %v data len %v err %v", t, len(p), e) + if e != nil { + break + } + + if len(p) < 100 { + continue + } + + select { + case frameChan <- p: + log.Printf("put frame") + default: + log.Printf("drop frame") + } + + } +} + +func streamHandler(w http.ResponseWriter, r *http.Request) { + var err error + var ws *websocket.Conn + + ws, err = upgrader.Upgrade(w, r, nil) + if err != nil { + log.Printf("err: %v", err) + return + } + + defer ws.Close() + + for { + var data []byte + select { + case data = <-frameChan: + case <-time.After(1 * time.Millisecond): + continue + } + + err = ws.WriteMessage(websocket.BinaryMessage, data) + if err != nil { + break + } + } +} + +func canvasHandler(w http.ResponseWriter, r *http.Request) { + tmpl := template.Must(template.ParseFiles("./canvas.html")) + var data = map[string]interface{}{} + tmpl.Execute(w, data) +} + +func main() { + defer fmt.Println("Program Exited...") + + m := http.NewServeMux() + m.HandleFunc("/watch", watchHandler) + m.HandleFunc("/video", videoHandler) + m.HandleFunc("/canvas", canvasHandler) + m.HandleFunc("/stream", streamHandler) + server := http.Server{ + Addr: ":80", + Handler: m, + } + + server.ListenAndServe() +}