添加歌曲封面接口

internal/util/ffmpeg.go

@@ -0,0 +1,20 @@
+package util
+
+import (
+	"os/exec"
+	"strconv"
+)
+
+func ExtractCover(filePath string, id int) bool {
+	if _, err := exec.LookPath("ffmpeg"); err != nil {
+		return false
+	}
+	coverPath := "cache/cover/" + strconv.Itoa(id) + ".jpg"
+	cmd := exec.Command("ffmpeg", "-i", filePath, "-an", "-vcodec", "mjpeg", "-q:v", "5", "-f", "image2", "-y", coverPath)
+	if err := cmd.Run(); err != nil {
+		return false
+	}
+
+	return true
+
+}