Golang与FFmpeg: 实现视频流媒体的分段传输技术

Golang?FFmpeg??????,????????????????

??,????FFmpeg?????????????????FFmpeg?????????,?????FFmpeg?????????????????FFmpeg??????????????:

ffmpeg -i input.mp4 -c copy -map 0 -segment_time 10 -f segment outputd.mp4

????????????input.mp4??10??????????output001.mp4?output002.mp4??

???,??Golang????HTTP???,??????????????????Golang?net/http????HTTP???,????????????????????

????????????:

package main
import (
"fmt"
"log"
"net/http"
)
func main() {
http.HandleFunc("/video", videoHandler)
log.Fatal(http.ListenAndServe(":8080", nil))
}
func videoHandler(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "video/mp4")
w.Header().Set("Transfer-Encoding", "chunked")
for i := 1; i <= 10; i++ {
segmentURL := fmt.Sprintf("http://example.com/videos/outputd.mp4", i)
resp, err := http.Get(segmentURL)
if err != nil {
log.Println(err)
return
}
defer resp.Body.Close()
chunk := make([]byte, 4096)
for {
n, err := resp.Body.Read(chunk)
if err != nil {
log.Println(err)
break
}
w.Write(chunk[:n])
}
}
}

?????????/video??????,??????????????????????????????segmentURL?????????????

??,????Golang??,??HTTP??????????/video?,?????????????????,???????????????

???,????????,???????????????????????