Add config file. Turn on/off ipfs

client.go

@@ -65,7 +65,6 @@ func (c *Client) Listen() {
 
 // Listen write request via chanel
 func (c *Client) listenWrite() {
-	log.Println("Listening write to client")
 	for {
 		select {
 
@@ -85,7 +84,6 @@ func (c *Client) listenWrite() {
 
 // Listen read request via chanel
 func (c *Client) listenRead() {
-	log.Println("Listening read from client")
 	for {
 		select {
 

config.go

@@ -0,0 +1,67 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+
+	"gopkg.in/yaml.v2"
+)
+
+// Config struct
+type Config struct {
+	IPFS           IPFS          `yaml:"ipfs"`
+	PublicHLSPath  string        `yaml:"publicHLSPath"`
+	PrivateHLSPath string        `yaml:"privateHLSPath"`
+	VideoSettings  VideoSettings `yaml:"videoSettings"`
+	Files          Files         `yaml:"files"`
+	FFMpegPath     string        `yaml:"ffmpegPath"`
+	WebServerPort  int           `yaml:"webServerPort"`
+}
+
+type VideoSettings struct {
+	ResolutionWidth      int `yaml:"resolutionWidth"`
+	ChunkLengthInSeconds int `yaml:"chunkLengthInSeconds"`
+}
+
+// MaxNumberOnDisk must be at least as large as MaxNumberInPlaylist
+type Files struct {
+	MaxNumberInPlaylist int `yaml:"maxNumberInPlaylist"`
+	MaxNumberOnDisk     int `yaml:"maxNumberOnDisk"`
+}
+
+type IPFS struct {
+	Enabled bool   `yaml:"enabled"`
+	Gateway string `yaml:"gateway"`
+}
+
+func getConfig() Config {
+	filePath := "config/config.yaml"
+
+	if !fileExists(filePath) {
+		log.Fatal("ERROR: valid config/config.yaml is required")
+	}
+
+	yamlFile, err := ioutil.ReadFile(filePath)
+
+	var config Config
+	err = yaml.Unmarshal(yamlFile, &config)
+	if err != nil {
+		panic(err)
+	}
+	return config
+}
+
+func checkConfig(config Config) {
+	if !fileExists(config.PrivateHLSPath) {
+		panic(fmt.Sprintf("%s does not exist.", config.PrivateHLSPath))
+	}
+
+	if !fileExists(config.PublicHLSPath) {
+		panic(fmt.Sprintf("%s does not exist.", config.PublicHLSPath))
+	}
+
+	if !fileExists(config.FFMpegPath) {
+		panic(fmt.Sprintf("ffmpeg does not exist at %s.", config.FFMpegPath))
+	}
+}

config/config.yaml

@@ -0,0 +1,16 @@
+publicHLSPath: webroot/hls
+privateHLSPath: hls
+ffmpegPath: /usr/local/bin/ffmpeg
+webServerPort: 8080
+
+videoSettings:
+  resolutionWidth: 900
+  chunkLengthInSeconds: 4
+
+files:
+  maxNumberInPlaylist: 30
+  maxNumberOnDisk: 60
+
+ipfs:
+  enabled: true
+  gateway: https://ipfs.io

ffmpeg.go

@@ -5,19 +5,26 @@ import (
 	"log"
 	"os"
 	"os/exec"
+	"path"
+	"strconv"
 	"strings"
 )
 
-func startFfmpeg() {
-	outputDir := "webroot"
-	chunkLength := "4"
+func startFfmpeg(configuration Config) {
+	var outputDir = configuration.PublicHLSPath
+	var hlsPlaylistName = path.Join(configuration.PublicHLSPath, "stream.m3u8")
 
-	log.Printf("Starting transcoder with segments saving to %s.", outputDir)
+	if configuration.IPFS.Enabled {
+		outputDir = configuration.PrivateHLSPath
+		hlsPlaylistName = path.Join(outputDir, "temp.m3u8")
+	}
 
-	// ffmpegCmd := "cat streampipe.flv | ffmpeg -hide_banner -i pipe: -vf scale=900:-2 -g 48 -keyint_min 48 -preset ultrafast -f hls -hls_list_size 30 -hls_time 10 -strftime 1 -use_localtime 1 -hls_segment_filename 'hls/stream-%Y%m%d-%s.ts' -hls_flags delete_segments -segment_wrap 100 hls/temp.m3u8"
+	log.Printf("Starting transcoder saving to /%s.", outputDir)
 
-	ffmpegCmd := "cat streampipe.flv | ffmpeg -hide_banner -i pipe: -vf scale=900:-2 -g 48 -keyint_min 48 -preset ultrafast -f hls -hls_list_size 30 -hls_time " + chunkLength + " -strftime 1 -use_localtime 1 -hls_segment_filename '" + outputDir + "/stream-%Y%m%d-%s.ts' -hls_flags delete_segments -segment_wrap 100 hls/temp.m3u8"
-	fmt.Println(ffmpegCmd)
+	ffmpegCmd := "cat streampipe.flv | " + configuration.FFMpegPath +
+		" -hide_banner -i pipe: -vf scale=" + strconv.Itoa(configuration.VideoSettings.ResolutionWidth) + ":-2 -g 48 -keyint_min 48 -preset ultrafast -f hls -hls_list_size 30 -hls_time " +
+		strconv.Itoa(configuration.VideoSettings.ChunkLengthInSeconds) + " -strftime 1 -use_localtime 1 -hls_segment_filename '" +
+		outputDir + "/stream-%Y%m%d-%s.ts' -hls_flags delete_segments -segment_wrap 100 " + hlsPlaylistName
 
 	_, err := exec.Command("bash", "-c", ffmpegCmd).Output()
 	verifyError(err)
@@ -29,9 +36,9 @@ func verifyError(e error) {
 	}
 }
 
-func generateRemotePlaylist(playlist string, segments map[string]string) string {
+func generateRemotePlaylist(playlist string, gateway string, segments map[string]string) string {
 	for local, remote := range segments {
-		playlist = strings.ReplaceAll(playlist, local, "https://gateway.temporal.cloud"+remote)
+		playlist = strings.ReplaceAll(playlist, local, gateway+remote)
 	}
 	return playlist
 }

go.sum

@@ -1179,6 +1179,7 @@ gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWD
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.5 h1:ymVxjfMaHvXD8RqPRmzHHsB3VvucivSkIAvJFDI5O3c=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 grpc.go4.org v0.0.0-20170609214715-11d0a25b4919/go.mod h1:77eQGdRu53HpSqPFJFmuJdjuHRquDANNeA4x7B8WQ9o=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

handler.go

@@ -64,7 +64,7 @@ func (h *Handler) OnPublish(timestamp uint32, cmd *rtmpmsg.NetStreamPublish) err
 	}
 	h.flvEnc = enc
 
-	go startFfmpeg()
+	go startFfmpeg(configuration)
 
 	return nil
 }

ipfs.go

@@ -4,11 +4,12 @@ import (
 	"context"
 	"fmt"
 	"io/ioutil"
-	"log"
 	"os"
 	"path/filepath"
 	"sync"
 
+	log "github.com/sirupsen/logrus"
+
 	config "github.com/ipfs/go-ipfs-config"
 	files "github.com/ipfs/go-ipfs-files"
 	icore "github.com/ipfs/interface-go-ipfs-core"
@@ -26,12 +27,10 @@ import (
 	"github.com/ipfs/go-ipfs/repo/fsrepo"
 )
 
-var directory = "hls"
 var directoryHash string
 
 var node *core.IpfsNode
 
-//var ctx, _ = context.WithCancel(context.Background())
 var ctx = context.Background()
 
 func createIPFSDirectory(ipfs *icore.CoreAPI, directoryName string) {
@@ -79,9 +78,6 @@ func addFileToDirectory(ipfs *icore.CoreAPI, originalFileHashToModifyPath path.P
 	newDirectoryHash, err := (*ipfs).Object().AddLink(ctx, directoryToAddToPath, filename, originalFileHashToModifyPath)
 
 	verifyError(err)
-
-	fmt.Printf("New hash: %s\n", newDirectoryHash.String())
-
 	return newDirectoryHash.String() + "/" + filename
 }
 
@@ -251,7 +247,7 @@ func createIPFSInstance() (*icore.CoreAPI, *core.IpfsNode, error) {
 }
 
 func startIPFSNode(ipfs icore.CoreAPI, node *core.IpfsNode) { //} icore.CoreAPI {
-	defer fmt.Println("---- IPFS node exited!")
+	defer log.Println("IPFS node exited")
 
 	log.Println("IPFS node is running")
 
@@ -265,6 +261,9 @@ func startIPFSNode(ipfs icore.CoreAPI, node *core.IpfsNode) { //} icore.CoreAPI
 		// IPFS Cluster Pinning nodes
 		"/ip4/138.201.67.219/tcp/4001/p2p/QmUd6zHcbkbcs7SMxwLs48qZVX3vpcM8errYS7xEczwRMA",
 
+		"/ip4/104.131.131.82/tcp/4001/p2p/QmaCpDMGvV2BGHeYERUEnRQAwe3N8SzbUtfsmvsqQLuvuJ",      // mars.i.ipfs.io
+		"/ip4/104.131.131.82/udp/4001/quic/p2p/QmaCpDMGvV2BGHeYERUEnRQAwe3N8SzbUtfsmvsqQLuvuJ", // mars.i.ipfs.io
+
 		// You can add more nodes here, for example, another IPFS node you might have running locally, mine was:
 		// "/ip4/127.0.0.1/tcp/4010/p2p/QmZp2fhDLxjYue2RiUvLwT9MWdnbDxam32qYFnGmxZDh5L",
 		// "/ip4/127.0.0.1/udp/4010/quic/p2p/QmZp2fhDLxjYue2RiUvLwT9MWdnbDxam32qYFnGmxZDh5L",

main.go

@@ -4,6 +4,7 @@ import (
 	"io"
 	"net"
 	"net/http"
+	"strconv"
 
 	icore "github.com/ipfs/interface-go-ipfs-core"
 	"github.com/sirupsen/logrus"
@@ -12,23 +13,37 @@ import (
 )
 
 var ipfs icore.CoreAPI
+var configuration = getConfig()
 
 func main() {
-	resetDirectories()
+	checkConfig(configuration)
+	// resetDirectories()
 
-	ipfsInstance, node, _ := createIPFSInstance()
-	ipfs = *ipfsInstance
+	var hlsDirectoryPath = configuration.PublicHLSPath
 
-	createIPFSDirectory(ipfsInstance, "./hls")
-	// touch("hls/stream.m3u8")
+	log.Println("Starting up.  Please wait...")
+
+	if configuration.IPFS.Enabled {
+		hlsDirectoryPath = configuration.PrivateHLSPath
+		enableIPFS()
+		go monitorVideoContent(hlsDirectoryPath, configuration, &ipfs)
+	}
 
-	go startIPFSNode(ipfs, node)
-	go monitorVideoContent("./hls/", ipfsInstance)
 	go startChatServer()
 
 	startRTMPService()
 }
 
+func enableIPFS() {
+	log.Println("Enabling IPFS support...")
+
+	ipfsInstance, node, _ := createIPFSInstance()
+	ipfs = *ipfsInstance
+
+	createIPFSDirectory(ipfsInstance, "./hls")
+	go startIPFSNode(ipfs, node)
+}
+
 func startChatServer() {
 	// log.SetFlags(log.Lshortfile)
 
@@ -39,11 +54,14 @@ func startChatServer() {
 	// static files
 	http.Handle("/", http.FileServer(http.Dir("webroot")))
 
-	log.Fatal(http.ListenAndServe(":8080", nil))
+	log.Fatal(http.ListenAndServe(":"+strconv.Itoa(configuration.WebServerPort), nil))
 }
 
 func startRTMPService() {
-	tcpAddr, err := net.ResolveTCPAddr("tcp", ":1935")
+	port := 1935
+	log.Printf("RTMP server is listening for incoming stream on port %d.\n", port)
+
+	tcpAddr, err := net.ResolveTCPAddr("tcp", ":"+strconv.Itoa(port))
 	if err != nil {
 		log.Panicf("Failed: %+v", err)
 	}
@@ -74,5 +92,4 @@ func startRTMPService() {
 	if err := srv.Serve(listener); err != nil {
 		log.Panicf("Failed: %+v", err)
 	}
-
 }

playlistMonitor.go

@@ -1,19 +1,22 @@
 package main
 
 import (
-	"fmt"
 	"io/ioutil"
-	"log"
+	"path"
 	"path/filepath"
 	"time"
 
+	log "github.com/sirupsen/logrus"
+
 	icore "github.com/ipfs/interface-go-ipfs-core"
 	"github.com/radovskyb/watcher"
 )
 
 var filesToUpload = make(map[string]string)
 
-func monitorVideoContent(path string, ipfs *icore.CoreAPI) {
+func monitorVideoContent(pathToMonitor string, configuration Config, ipfs *icore.CoreAPI) {
+	log.Printf("Using %s for IPFS files...\n", pathToMonitor)
+
 	w := watcher.New()
 
 	go func() {
@@ -25,28 +28,30 @@ func monitorVideoContent(path string, ipfs *icore.CoreAPI) {
 				}
 				if filepath.Base(event.Path) == "temp.m3u8" {
 
-					for filePath, objectID := range filesToUpload {
-						if objectID != "" {
-							continue
-						}
-
-						newObjectPath := save("hls/"+filePath, ipfs)
-						fmt.Println(filePath, newObjectPath)
+					if configuration.IPFS.Enabled {
+						for filePath, objectID := range filesToUpload {
+							if objectID != "" {
+								continue
+							}
 
-						filesToUpload[filePath] = newObjectPath
+							newObjectPath := save(path.Join(configuration.PrivateHLSPath, filePath), ipfs)
+							filesToUpload[filePath] = newObjectPath
+						}
 					}
+
 					playlistBytes, err := ioutil.ReadFile(event.Path)
 					verifyError(err)
 					playlistString := string(playlistBytes)
 
-					if false {
-						playlistString = generateRemotePlaylist(playlistString, filesToUpload)
+					if configuration.IPFS.Enabled {
+						playlistString = generateRemotePlaylist(playlistString, configuration.IPFS.Gateway, filesToUpload)
 					}
-					writePlaylist(playlistString, "webroot/stream.m3u8")
+					writePlaylist(playlistString, path.Join(configuration.PublicHLSPath, "/stream.m3u8"))
 
 				} else if filepath.Ext(event.Path) == ".ts" {
-					filesToUpload[filepath.Base(event.Path)] = ""
-					// copy(event.Path, "webroot/"+filepath.Base(event.Path))
+					if configuration.IPFS.Enabled {
+						filesToUpload[filepath.Base(event.Path)] = ""
+					}
 				}
 			case err := <-w.Error:
 				log.Fatalln(err)
@@ -57,7 +62,7 @@ func monitorVideoContent(path string, ipfs *icore.CoreAPI) {
 	}()
 
 	// Watch this folder for changes.
-	if err := w.Add(path); err != nil {
+	if err := w.Add(pathToMonitor); err != nil {
 		log.Fatalln(err)
 	}
 

server.go

@@ -76,9 +76,6 @@ func (s *Server) sendAll(msg *Message) {
 // Listen and serve.
 // It serves client connection and broadcast request.
 func (s *Server) Listen() {
-
-	log.Println("Listening server...")
-
 	// websocket handler
 	onConnected := func(ws *websocket.Conn) {
 		defer func() {
@@ -93,7 +90,6 @@ func (s *Server) Listen() {
 		client.Listen()
 	}
 	http.Handle(s.pattern, websocket.Handler(onConnected))
-	log.Println("Created handler")
 
 	for {
 		select {

utils.go

@@ -44,3 +44,12 @@ func copy(src, dst string) {
 		return
 	}
 }
+
+func fileExists(name string) bool {
+	if _, err := os.Stat(name); err != nil {
+		if os.IsNotExist(err) {
+			return false
+		}
+	}
+	return true
+}

webroot/index.html

@@ -20,7 +20,7 @@
 <video id="video" controls></video>
 <script>
   var video = document.getElementById('video');
-  var videoSrc = 'stream.m3u8';
+  var videoSrc = 'hls/stream.m3u8';
   if (Hls.isSupported()) {
     var hls = new Hls();
     hls.loadSource(videoSrc);