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linux安装ffmpeg详细教程

视频来源： u5影视

顺序

下载程序 download.go

package mainimport (	"fmt"	"io"	"io/ioutil"	"net/http"	"os"	"regexp")var fileChan chan stringvar endChan chan stringvar tsChan chan stringvar folder = "/data/www/mv/dian_shi_ju/ping_fan_de_shi_jie"var num = 56 // 56集func main() {
   	fileChan = make(chan string, num)	endChan = make(chan string, num)	tsChan = make(chan string, num)	for i := 0; i < num; i++ {
   		s := fmt.Sprintf("https://u5-web.scbaiduwk.com/dianshiju/tv_ji0cjkun/tv_ji0cjkun_%s.mp4/index.m3u8", fmt.Sprintf("%02d", i+1))		fileChan <- s	}	// 下载m3u8	for n := 0; n < 10; n++ {
   		go consumer(fileChan, tsChan)	}	// 下载ts	for m := 0; m < 30; m++ {
   		go readTs(tsChan, endChan)	}	k := 0	for {
   		<-endChan		k++		if k == num {
   			break		}	}}func consumer(fc chan string, tsChan chan string) {
   	for {
   		str := <-fc		reg := regexp.MustCompile(`tv_ji0cjkun_(\d+).mp4`)		res := reg.FindAllStringSubmatch(str, -1)		no := res[0][1]		os.Mkdir(folder+"/"+no, os.ModePerm)		response, _ := http.Get(str)		filename := folder + "/" + no + "/" + no + ".m3u8"		f, _ := os.OpenFile(filename, os.O_CREATE|os.O_RDWR, os.ModePerm)		defer f.Close()		defer response.Body.Close()		io.Copy(f, response.Body)		tsChan <- no	}}func readTs(tsChan chan string, endChan chan string) {
   	for {
   		no := <-tsChan		fold := folder + "/" + no + "/"		data, _ := ioutil.ReadFile(fold + no + ".m3u8")		reg := regexp.MustCompile(`(segment-\d+-v1-a1.ts)`)		res := reg.FindAllStringSubmatch(string(data), -1)		for _, v := range res {
   			url := fmt.Sprintf("https://u5-web.scbaiduwk.com/dianshiju/tv_ji0cjkun/tv_ji0cjkun_%s.mp4/%s", no, v[1])			response, _ := http.Get(url)			f, _ := os.OpenFile(fold+v[1], os.O_CREATE|os.O_RDWR, os.ModePerm)			defer f.Close()			defer response.Body.Close()			io.Copy(f, response.Body)		}		endChan <- ""	}}

合成 createMp4.go

package mainimport (	"fmt"	"os"	"os/exec"	"regexp"	"sort"	"strconv"	"strings")var dirname = "/data/www/mv/dian_shi_ju/ping_fan_de_shi_jie"var savedir = "/data/www/mv/dian_shi_ju/00_ok"func main() {
   	fs, err := os.Open(dirname)	if err != nil {
   		panic(err)	}	defer fs.Close()	fiss, err := fs.Readdir(0)	if err != nil {
   		panic(err)	}	for _, vv := range fiss {
   		temp := vv		// 如果电脑配置好的话使用协程		fold := dirname + "/" + temp.Name()		f, err := os.Open(fold)		if err != nil {
   			panic(err)		}		defer func() {
   			f.Close()		}()		fis, err := f.Readdir(0)		if err != nil {
   			panic(err)		}		names := make([]string, 0)		toSort := make([]int, 0)		for _, v := range fis {
   			if strings.Contains(v.Name(), "segment") {
    // segment-1-v1-a1.ts				reg := regexp.MustCompile(`segment-(\d+)-v1-a1`)				res := reg.FindAllStringSubmatch(v.Name(), -1)				id, _ := strconv.Atoi(res[0][1])				toSort = append(toSort, id)			}		}		sort.Ints(toSort)		for _, v := range toSort {
   			names = append(names, fold+"/"+fmt.Sprintf("segment-%d-v1-a1.ts", v))		}		str := strings.Join(names, "|")		makeMp4(str, temp.Name())	}}// ffmpeg -i "concat:segment-1-v1-a1.ts|segment-2-v1-a1.ts" -acodec copy -vcodec copy -absf aac_adtstoasc output.mp4func makeMp4(str string, no string) {
   	binary, lookErr := exec.LookPath("ffmpeg")	if lookErr != nil {
   		panic(lookErr)	}	args := []string{
   		"-i",		fmt.Sprintf("concat:%s", str),		"-acodec",		"copy",		"-vcodec",		"copy",		"-absf",		"aac_adtstoasc",		fmt.Sprintf("%s/%s.mp4", savedir, no),	}	cmd := exec.Command(binary, args...)	r, err := cmd.Output()	fmt.Println(err)	fmt.Println(string(r))}

go run download.go

go run createMp4.go

当然也可以整合到一个程序。