121 lines
2.5 KiB
Markdown
121 lines
2.5 KiB
Markdown
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# Golang 实现 MP4 视频文件服务器
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生命不止，继续 go go go !!!
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有点忙，有点懈怠，继续。
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关于golang实现的静态文件服务器之前有写过：
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[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)
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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。
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## MP4 文件服务器
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```go
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package main
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import (
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"log"
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"net/http"
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"os"
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"time"
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)
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func ServeHTTP(w http.ResponseWriter, r *http.Request) {
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video, err := os.Open("./test.mp4")
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if err != nil {
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log.Fatal(err)
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}
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defer video.Close()
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http.ServeContent(w, r, "test.mp4", time.Now(), video)
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}
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func main() {
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http.HandleFunc("/", ServeHTTP)
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http.ListenAndServe(":8080", nil)
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}
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```
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```go
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package main
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import "io/ioutil"
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import "log"
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import "net/http"
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import "strings"
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type viewHandler struct{}
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func (vh *viewHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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path := r.URL.Path[1:]
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data, err := ioutil.ReadFile(string(path))
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if err != nil {
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log.Printf("Error with path %s: %v", path, err)
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w.WriteHeader(404)
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w.Write([]byte("404"))
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}
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if strings.HasSuffix(path, ".html") {
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w.Header().Add("Content-Type", "text/html")
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} else if strings.HasSuffix(path, ".mp4") {
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w.Header().Add("Content-Type", "video/mp4")
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}
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w.Write(data)
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}
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func main() {
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http.Handle("/", new(viewHandler))
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http.ListenAndServe(":8080", nil)
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}
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```
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## nareix/joy4
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Golang audio/video library and streaming server
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我们先浅尝辄止，简单使用一下：
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```go
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package main
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import (
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"fmt"
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"github.com/nareix/joy4/av"
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"github.com/nareix/joy4/av/avutil"
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"github.com/nareix/joy4/format"
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)
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func init() {
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format.RegisterAll()
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}
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func main() {
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file, _ := avutil.Open("test.mp4")
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streams, _ := file.Streams()
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for _, stream := range streams {
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if stream.Type().IsAudio() {
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astream := stream.(av.AudioCodecData)
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fmt.Println(astream.Type(), astream.SampleRate(), astream.SampleFormat(), astream.ChannelLayout())
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} else if stream.Type().IsVideo() {
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vstream := stream.(av.VideoCodecData)
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fmt.Println(vstream.Type(), vstream.Width(), vstream.Height())
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}
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}
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file.Close()
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}
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```
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以上程序输出：
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```bash
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AAC 48000 FLTP 1ch
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H264 960 720
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```
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