1、add video stream demo

2、add config read string function

example/video_streaming/ap/main.go

@@ -7,13 +7,12 @@ import (
 	"fmt"
 	"git.hpds.cc/Component/network/log"
 	"git.hpds.cc/pavement/hpds_node"
+	"github.com/disintegration/imaging"
+	ffmpeg "github.com/u2takey/ffmpeg-go"
 	"io"
 	"os"
 	"strconv"
 	"time"
-
-	"github.com/disintegration/imaging"
-	ffmpeg "github.com/u2takey/ffmpeg-go"
 )
 
 func main() {
@@ -37,7 +36,7 @@ func main() {
 		if len(img) > 0 {
 			//log.Printf("send img %s", HexToString(img))
 			str := fmt.Sprintf("%d", time.Now().UnixNano()/1e6)
-			tick := time.Now().Format("20060102150405") + str[10:]
+			tick := fmt.Sprintf("%d_%s", id, time.Now().Format("20060102150405")+str[10:])
 			go WriteFile(fmt.Sprintf("./%s.jpeg", tick), img)
 			n, err := ap.Write(img)
 			if err != nil {
@@ -50,24 +49,45 @@ func main() {
 	}
 	video := VideoImage{}
 	ffStream := ffmpeg.Input("rtmp://ns8.indexforce.com/home/mystream")
+	//i := 0
+	//quit := make(chan int)
+	tick := time.NewTicker(time.Millisecond * 42)
+	defer tick.Stop()
+	go func() {
 		i := 0
-	quit := make(chan int)
+		for range tick.C {
-	//tick := time.Tick(time.Second)
-	select {
-	case <-quit:
-		fmt.Println("quit")
-		return
-	case <-time.After(time.Millisecond * 42):
 			if i%24 == 0 {
-			img, err := video.ExtractImageBytes(ffStream, 1)
+				img, err := video.ExtractImageBytes(ffStream, i)
 				if err != nil {
 					fmt.Printf("ExtractImage64 error: %v\n", err)
 				}
+				fmt.Printf("i ========== %d \n", i)
 				send(i, img)
 				//log.Debugf("send img %#v", img)
 			}
 			i++
 		}
+	}()
+	select {}
+	//ch := make(chan int, 1)
+	//
+	//select {
+	//case <-quit:
+	//	fmt.Println("quit")
+	//	close(ch)
+	//	return
+	//case <-tick.C:
+	//	if i%24 == 0 {
+	//		img, err := video.ExtractImageBytes(ffStream, i)
+	//		if err != nil {
+	//			fmt.Printf("ExtractImage64 error: %v\n", err)
+	//		}
+	//		fmt.Printf("i ========== %d \n", i)
+	//		send(i, img)
+	//		//log.Debugf("send img %#v", img)
+	//	}
+	//	i++
+	//}
 }
 
 func genSha1(buf []byte) string {

example/video_streaming/sf/main.go

@@ -19,7 +19,7 @@ var (
 func main() {
 	sf := hpds_node.NewStreamFunction(
 		"echo-sf",
-		hpds_node.WithMqAddr("localhost:27188"),
+		hpds_node.WithMqAddr("localhost:27187"),
 		hpds_node.WithObserveDataTags(ImageDataKey),
 		hpds_node.WithCredential("token:z1"),
 	)
@@ -52,13 +52,14 @@ func Handler(img []byte) (byte, []byte) {
 	//} else {
 	//	fmt.Println("GO: Run bindgen -- infer FAILED")
 	//}
+	id := atomic.AddUint64(&counter, 1)
 	str := fmt.Sprintf("%d", time.Now().UnixNano()/1e6)
 	tick := time.Now().Format("20060102150405") + str[10:]
-	go WriteFile(fmt.Sprintf("./%s.jpeg", tick), img)
+	go WriteFile(fmt.Sprintf("./%d_%s.jpeg", id, tick), img)
 
 	// print logs
 	hash := genSha1(img)
-	log.Printf("received image-%d hash %v, img_size=%d \n", atomic.AddUint64(&counter, 1), hash, len(img))
+	log.Printf("received image-%d hash %v, img_size=%d \n", id, hash, len(img))
 
 	return 0x11, nil
 }