Go 言語と Redis を使用してオンラインビデオ再生プラットフォームを開発する方法

package main

import (
    "fmt"
    "net/http"
    "os"
)

func handleUpload(w http.ResponseWriter, r *http.Request) {
    file, handler, err := r.FormFile("video")
    if err != nil {
        fmt.Println(err)
        return
    }
    defer file.Close()

    f, err := os.OpenFile(handler.Filename, os.O_WRONLY|os.O_CREATE, 0666)
    if err != nil {
        fmt.Println(err)
        return
    }
    defer f.Close()

    _, err = io.Copy(f, file)
    if err != nil {
        fmt.Println(err)
        return
    }

    fmt.Fprintln(w, "Video uploaded successfully!")
}

func main() {
    http.HandleFunc("/upload", handleUpload)
    http.ListenAndServe(":8080", nil)
}

package main

import (
    "fmt"
    "log"
    "os/exec"
)

func transcodeVideo(inputFile string, outputFile string) error {
    cmd := exec.Command("ffmpeg", "-i", inputFile, "-c:v", "libx264", "-preset", "fast", "-c:a", "aac", "-b:a", "128k", outputFile)
    err := cmd.Run()
    if err != nil {
        return fmt.Errorf("failed to transcode video: %w", err)
    }
    return nil
}

func main() {
    inputFile := "input.mp4"
    outputFile := "output.mp4"

    err := transcodeVideo(inputFile, outputFile)
    if err != nil {
        log.Fatal(err)
    }

    fmt.Println("Video transcoded successfully!")
}

package main

import (
    "fmt"
    "github.com/go-redis/redis"
)

func main() {
    client := redis.NewClient(&redis.Options{
        Addr:     "localhost:6379",
        Password: "", // Redis数据库密码（如果设置了密码）
        DB:       0,  // Redis数据库索引
    })

    videoID := "video-1"
    videoURL := "http://example.com/video.mp4"

    err := client.Set(videoID, videoURL, 0).Err()
    if err != nil {
        fmt.Println(err)
        return
    }

    videoURL, err = client.Get(videoID).Result()
    if err != nil {
        fmt.Println(err)
        return
    }

    fmt.Println("Video URL:", videoURL)
}