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)

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

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)
}

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：

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()
}

输出： AAC 48000 FLTP 1ch H264 960 720