Rewrite FLV/RTMP clients

internal/http/http.go

@@ -53,11 +53,8 @@ func handleHTTP(url string) (core.Producer, error) {
 		return multipart.NewClient(res)
 
 	case "video/x-flv":
-		var client *flv.Client
-		if client, err = flv.NewClient(res.Body); err != nil {
-			return nil, err
-		}
-		if err = client.Describe(); err != nil {
+		client, err := flv.Open(res.Body)
+		if err != nil {
 			return nil, err
 		}
 		client.URL = url

internal/rtmp/rtmp.go

@@ -23,9 +23,6 @@ func streamsHandle(url string) (core.Producer, error) {
 	if err != nil {
 		return nil, err
 	}
-	if err = client.Describe(); err != nil {
-		return nil, err
-	}
 	return client, nil
 }
 
@@ -42,17 +39,12 @@ func apiHandle(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	client, err := flv.NewClient(r.Body)
+	client, err := flv.Open(r.Body)
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusInternalServerError)
 		return
 	}
 
-	if err = client.Describe(); err != nil {
-		http.Error(w, err.Error(), http.StatusInternalServerError)
-		return
-	}
-
 	stream.AddProducer(client)
 
 	if err = client.Start(); err != nil && err != io.EOF {