example add http_flv_and_rtmp_server

examples/http_flv_and_rtmp_server/main.go

@@ -0,0 +1,104 @@
+package main
+
+import (
+	"sync"
+	"io"
+	"time"
+	"net/http"
+	"github.com/nareix/joy4/format"
+	"github.com/nareix/joy4/av/avutil"
+	"github.com/nareix/joy4/av/pubsub"
+	"github.com/nareix/joy4/format/rtmp"
+	"github.com/nareix/joy4/format/flv"
+)
+
+func init() {
+	format.RegisterAll()
+}
+
+type writeFlusher struct {
+	httpflusher http.Flusher
+	io.Writer
+}
+
+func (self writeFlusher) Flush() error {
+	self.httpflusher.Flush()
+	return nil
+}
+
+func main() {
+	server := &rtmp.Server{}
+
+	l := &sync.RWMutex{}
+	type Channel struct {
+		que *pubsub.Queue
+	}
+	channels := map[string]*Channel{}
+
+	server.HandlePlay = func(conn *rtmp.Conn) {
+		l.RLock()
+		ch := channels[conn.URL.Path]
+		l.RUnlock()
+
+		if ch != nil {
+			cursor := ch.que.Latest()
+			avutil.CopyFile(conn, cursor)
+		}
+	}
+
+	server.HandlePublish = func(conn *rtmp.Conn) {
+		streams, _ := conn.Streams()
+
+		l.Lock()
+		ch := channels[conn.URL.Path]
+		if ch == nil {
+			ch = &Channel{}
+			ch.que = pubsub.NewQueue(streams)
+			ch.que.SetMaxDuration(time.Minute)
+			channels[conn.URL.Path] = ch
+		} else {
+			ch = nil
+		}
+		l.Unlock()
+		if ch == nil {
+			return
+		}
+
+		avutil.CopyPackets(ch.que, conn)
+
+		l.Lock()
+		delete(channels, conn.URL.Path)
+		l.Unlock()
+		ch.que.Close()
+	}
+
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		l.RLock()
+		ch := channels[r.URL.Path]
+		l.RUnlock()
+
+		if ch != nil {
+			w.Header().Set("Content-Type", "video/x-flv")
+			w.Header().Set("Transfer-Encoding", "chunked")
+			w.WriteHeader(200)
+			flusher := w.(http.Flusher)
+			flusher.Flush()
+
+			muxer := flv.NewMuxerWriteFlusher(writeFlusher{httpflusher: flusher, Writer: w})
+			cursor := ch.que.Latest()
+
+			avutil.CopyFile(muxer, cursor)
+		} else {
+			http.NotFound(w, r)
+		}
+	})
+
+	go http.ListenAndServe(":8089", nil)
+
+	server.ListenAndServe()
+
+	// ffmpeg -re -i movie.flv -c copy -f flv rtmp://localhost/movie
+	// ffmpeg -f avfoundation -i "0:0" .... -f flv rtmp://localhost/screen
+	// ffplay http://localhost:8089/movie
+	// ffplay http://localhost:8089/screen
+}