diff --git a/Software/Development/Language/Go/Demo/Golang_实现_MP4_视频文件服务器.md b/Software/Development/Language/Go/Demo/Golang_实现_MP4_视频文件服务器.md
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+# Golang 实现 MP4 视频文件服务器
+
+生命不止，继续 go go go !!!
+
+有点忙，有点懈怠，继续。
+
+关于golang实现的静态文件服务器之前有写过：
+
+[Go实战–golang实现静态文件服务器(文件查看，文件上传，文件下载)](http://blog.csdn.net/wangshubo1989/article/details/77319537?locationNum=10&fps=1)
+
+正好，最近在做视频方面的东西，那么先来个简单的，实现一个提供mp4视频文件的服务器吧，并且通过浏览器访问播放。
+
+## MP4 文件服务器
+
+```go
+package main
+
+import (
+    "log"
+    "net/http"
+    "os"
+    "time"
+)
+
+func ServeHTTP(w http.ResponseWriter, r *http.Request) {
+    video, err := os.Open("./test.mp4")
+    if err != nil {
+        log.Fatal(err)
+    }
+    defer video.Close()
+
+    http.ServeContent(w, r, "test.mp4", time.Now(), video)
+}
+
+func main() {
+    http.HandleFunc("/", ServeHTTP)
+    http.ListenAndServe(":8080", nil)
+}
+```
+
+```go
+package main
+
+import "io/ioutil"
+import "log"
+import "net/http"
+import "strings"
+
+type viewHandler struct{}
+
+func (vh *viewHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+    path := r.URL.Path[1:]
+
+    data, err := ioutil.ReadFile(string(path))
+
+    if err != nil {
+        log.Printf("Error with path %s: %v", path, err)
+        w.WriteHeader(404)
+        w.Write([]byte("404"))
+    }
+
+    if strings.HasSuffix(path, ".html") {
+        w.Header().Add("Content-Type", "text/html")
+    } else if strings.HasSuffix(path, ".mp4") {
+        w.Header().Add("Content-Type", "video/mp4")
+    }
+
+    w.Write(data)
+}
+
+func main() {
+    http.Handle("/", new(viewHandler))
+    http.ListenAndServe(":8080", nil)
+}
+```
+
+## nareix/joy4
+
+Golang audio/video library and streaming server
+
+我们先浅尝辄止，简单使用一下：
+
+```go
+package main
+
+import (
+    "fmt"
+
+    "github.com/nareix/joy4/av"
+    "github.com/nareix/joy4/av/avutil"
+    "github.com/nareix/joy4/format"
+)
+
+func init() {
+    format.RegisterAll()
+}
+
+func main() {
+    file, _ := avutil.Open("test.mp4")
+    streams, _ := file.Streams()
+    for _, stream := range streams {
+        if stream.Type().IsAudio() {
+            astream := stream.(av.AudioCodecData)
+            fmt.Println(astream.Type(), astream.SampleRate(), astream.SampleFormat(), astream.ChannelLayout())
+        } else if stream.Type().IsVideo() {
+            vstream := stream.(av.VideoCodecData)
+            fmt.Println(vstream.Type(), vstream.Width(), vstream.Height())
+        }
+    }
+
+    file.Close()
+}
+```
+
+以上程序输出：
+
+```bash
+AAC 48000 FLTP 1ch
+H264 960 720
+```