README.md

@@ -2,64 +2,19 @@
 
 基于 https://github.com/taurusxin/ncmdump 的 Golang 移植版
 
-支持网易云音乐最新的 3.x 版本，但需要注意：从该版本开始网易云音乐不再在 ncm 文件中内置封面图片，本工具支持从网易服务器上自动下载对应歌曲的封面图并写入到最终的音乐文件中
+支持网易云音乐最新的 3.x 版本
-
-## 安装
-
-你可以使用去 [releases](https://git.taurusxin.com/taurusxin/ncmdump-go/releases/latest) 下载最新版预编译好的二进制文件，或者你也可以用包管理器来安装
-
-```shell
-# Windows Scoop
-scoop bucket add taurusxin https://git.taurusxin.com/taurusxin/scoop-bucket.git  # 添加 scoop 源
-scoop install ncmdump-go # 安装 ncmdump-go
-
-# macOS & Linux 之后会支持
-```
 
 ## 使用方法
 
-使用 `-h` 或 `--help` 参数来打印帮助
-
 ```shell
-ncmdump-go -h
+# 处理单个或多个文件
+ncmdump test1.ncm test2.ncm...
+
+# 处理 Music 文件夹下的所有文件
+ncmdump -d Music
 ```
 
-使用 `-v` 或 `--version` 参数来打印版本信息
+注意：网易云音乐从 3.0 版本开始不再在 ncm 文件中嵌入封面图片，本工具支持从网易服务器上自动下载对应歌曲的封面图并写入到最终的音乐文件中
-
-```shell
-ncmdump-go -v
-```
-
-处理单个或多个文件
-
-```shell
-ncmdump-go 1.ncm 2.ncm...
-```
-
-使用 `-d` 参数来指定一个文件夹，对文件夹下的所有以 ncm 为扩展名的文件进行批量处理
-
-```shell
-ncmdump-go -d source_dir
-```
-
-使用 `-r` 配合 `-d` 参数来递归处理文件夹下的所有以 ncm 为扩展名的文件
-
-```shell
-ncmdump-go -d source_dir -r
-```
-
-使用 `-o` 参数来指定输出目录，将转换后的文件输出到指定目录，该参数支持与 `-r` 参数一起使用
-
-```shell
-# 处理单个或多个文件并输出到指定目录
-ncmdump-go 1.ncm 2.ncm -o output_dir
-
-# 处理文件夹下的所有以 ncm 为扩展名并输出到指定目录，不包含子文件夹
-ncmdump-go -d source_dir -o output_dir
-
-# 递归处理文件夹并输出到指定目录，并保留目录结构
-ncmdump-go -d source_dir -o output_dir -r
-```
 
 ## 开发
 

build.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-VERSION=1.7.1
+VERSION=1.5.0
 
 # Clean up the build directory
 rm -rf build
@@ -8,30 +8,30 @@ mkdir build
 
 # Linux amd64
 echo "Building for Linux amd64..."
-CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="-w -s" -o build/ncmdump-go github.com/taurusxin/ncmdump-go
+CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="-w -s" -o build/ncmdump github.com/taurusxin/ncmdump-go
-tar zcf build/ncmdump-go_linux_amd64_$VERSION.tar.gz -C build ncmdump-go
+tar zcf build/ncmdump_linux_amd64_$VERSION.tar.gz -C build ncmdump
-rm build/ncmdump-go
+rm build/ncmdump
 
 # Linux arm64
 echo "Building for Linux arm64..."
-CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -ldflags="-w -s" -o build/ncmdump-go github.com/taurusxin/ncmdump-go
+CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -ldflags="-w -s" -o build/ncmdump github.com/taurusxin/ncmdump-go
-tar zcf build/ncmdump-go_linux_arm64_$VERSION.tar.gz -C build ncmdump-go
+tar zcf build/ncmdump_linux_arm64_$VERSION.tar.gz -C build ncmdump
-rm build/ncmdump-go
+rm build/ncmdump
 
 # macOS amd64
 echo "Building for macOS amd64..."
-CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -ldflags="-w -s" -o build/ncmdump-go github.com/taurusxin/ncmdump-go
+CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -ldflags="-w -s" -o build/ncmdump github.com/taurusxin/ncmdump-go
-tar zcf build/ncmdump-go_darwin_amd64_$VERSION.tar.gz -C build ncmdump-go
+tar zcf build/ncmdump_darwin_amd64_$VERSION.tar.gz -C build ncmdump
-rm build/ncmdump-go
+rm build/ncmdump
 
 # macOS arm64
 echo "Building for macOS arm64..."
-CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -ldflags="-w -s" -o build/ncmdump-go github.com/taurusxin/ncmdump-go
+CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -ldflags="-w -s" -o build/ncmdump github.com/taurusxin/ncmdump-go
-tar zcf build/ncmdump-go_darwin_arm64_$VERSION.tar.gz -C build ncmdump-go
+tar zcf build/ncmdump_darwin_arm64_$VERSION.tar.gz -C build ncmdump
-rm build/ncmdump-go
+rm build/ncmdump
 
 # Windows amd64
 echo "Building for Windows amd64..."
-CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -ldflags="-w -s" -o build/ncmdump-go.exe github.com/taurusxin/ncmdump-go
+CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -ldflags="-w -s" -o build/ncmdump.exe github.com/taurusxin/ncmdump-go
-zip -q -j build/ncmdump-go_windows_amd64_$VERSION.zip ./build/ncmdump-go.exe
+zip -q -j build/ncmdump_windows_amd64_$VERSION.zip ./build/ncmdump.exe
-rm build/ncmdump-go.exe
+rm build/ncmdump.exe

go.mod

@@ -4,16 +4,15 @@ go 1.23.0
 
 require github.com/tidwall/gjson v1.17.3
 
+require github.com/go-flac/go-flac v1.0.0
+
 require github.com/spf13/pflag v1.0.5
 
 require github.com/bogem/id3v2/v2 v2.1.4
 
-require (
+require github.com/go-flac/flacpicture v0.3.0
-	github.com/TwiN/go-color v1.4.1
+
-	github.com/go-flac/flacpicture v0.3.0
+require github.com/TwiN/go-color v1.4.1
-	github.com/go-flac/flacvorbis v0.2.0
-	github.com/go-flac/go-flac v1.0.0
-)
 
 require (
 	github.com/tidwall/match v1.1.1 // indirect

go.sum

@@ -4,8 +4,6 @@ github.com/bogem/id3v2/v2 v2.1.4 h1:CEwe+lS2p6dd9UZRlPc1zbFNIha2mb2qzT1cCEoNWoI=
 github.com/bogem/id3v2/v2 v2.1.4/go.mod h1:l+gR8MZ6rc9ryPTPkX77smS5Me/36gxkMgDayZ9G1vY=
 github.com/go-flac/flacpicture v0.3.0 h1:LkmTxzFLIynwfhHiZsX0s8xcr3/u33MzvV89u+zOT8I=
 github.com/go-flac/flacpicture v0.3.0/go.mod h1:DPbrzVYQ3fJcvSgLFp9HXIrEQEdfdk/+m0nQCzwodZI=
-github.com/go-flac/flacvorbis v0.2.0 h1:KH0xjpkNTXFER4cszH4zeJxYcrHbUobz/RticWGOESs=
-github.com/go-flac/flacvorbis v0.2.0/go.mod h1:uIysHOtuU7OLGoCRG92bvnkg7QEqHx19qKRV6K1pBrI=
 github.com/go-flac/go-flac v1.0.0 h1:6qI9XOVLcO50xpzm3nXvO31BgDgHhnr/p/rER/K/doY=
 github.com/go-flac/go-flac v1.0.0/go.mod h1:WnZhcpmq4u1UdZMNn9LYSoASpWOCMOoxXxcWEHSzkW8=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=

main.go

@@ -10,19 +10,13 @@ import (
 	flag "github.com/spf13/pflag"
 )
 
-func processFile(filePath string, outputDir string) error {
+func processFile(filePath string) error {
-	// skip if the extension is not .ncm
-	if filePath[len(filePath)-4:] != ".ncm" {
-		return nil
-	}
-
-	// process the file
 	currentFile, err := ncmcrypt.NewNeteaseCloudMusic(filePath)
 	if err != nil {
 		utils.ErrorPrintfln("Reading '%s' failed: %s", filePath, err.Error())
 		return err
 	}
-	dump, err := currentFile.Dump(outputDir)
+	dump, err := currentFile.Dump(filepath.Dir(filePath))
 	if err != nil {
 		utils.ErrorPrintfln("Processing '%s' failed: %s", filePath, err.Error())
 		return err
@@ -39,13 +33,10 @@ func processFile(filePath string, outputDir string) error {
 }
 
 func main() {
-	var sourceDir string
+	var folderPath string
-	var outputDir string
 	showHelp := flag.BoolP("help", "h", false, "Display help message")
 	showVersion := flag.BoolP("version", "v", false, "Display version information")
-	processRecursive := flag.BoolP("recursive", "r", false, "Process all files in the directory recursively")
+	flag.StringVarP(&folderPath, "dir", "d", "", "Process all files in the directory")
-	flag.StringVarP(&outputDir, "output", "o", "", "Output directory for the dump files")
-	flag.StringVarP(&sourceDir, "dir", "d", "", "Process all files in the directory")
 	flag.Parse()
 
 	if len(os.Args) == 1 {
@@ -59,59 +50,27 @@ func main() {
 	}
 
 	if *showVersion {
-		fmt.Println("ncmdump version 1.7.1")
+		fmt.Println("ncmdump version 1.5.0")
 		os.Exit(0)
 	}
 
-	if !flag.Lookup("dir").Changed && sourceDir == "" && len(flag.Args()) == 0 {
+	if folderPath != "" {
-		flag.Usage()
+		// check if the folder exists
-		os.Exit(1)
+		info, err := os.Stat(folderPath)
-	}
-
-	if flag.Lookup("recursive").Changed && !flag.Lookup("dir").Changed {
-		utils.ErrorPrintfln("The -r option can only be used with the -d option")
-		os.Exit(1)
-	}
-
-	outputDirSpecified := flag.Lookup("output").Changed
-
-	if outputDirSpecified {
-		if utils.PathExists(outputDir) {
-			if !utils.IsDir(outputDir) {
-				utils.ErrorPrintfln("Output directory '%s' is not valid.", outputDir)
-				os.Exit(1)
-			}
-		} else {
-			_ = os.MkdirAll(outputDir, os.ModePerm)
-		}
-	}
-
-	if sourceDir != "" {
-		if !utils.IsDir(sourceDir) {
-			utils.ErrorPrintfln("The source directory '%s' is not valid.", sourceDir)
-			os.Exit(1)
-		}
-
-		if *processRecursive {
-			_ = filepath.WalkDir(sourceDir, func(p string, d os.DirEntry, err_ error) error {
-				if !outputDirSpecified {
-					outputDir = sourceDir
-				}
-				relativePath := utils.GetRelativePath(sourceDir, p)
-				destinationPath := filepath.Join(outputDir, relativePath)
-
-				if utils.IsRegularFile(p) {
-					parentDir := filepath.Dir(destinationPath)
-					_ = os.MkdirAll(parentDir, os.ModePerm)
-					_ = processFile(p, parentDir)
-				}
-				return nil
-			})
-		} else {
-			// dump files in the folder
-			files, err := os.ReadDir(sourceDir)
 		if err != nil {
-				utils.ErrorPrintfln("Unable to read directory: '%s'", sourceDir)
+			utils.ErrorPrintfln("Unable to access directory: '%s'", folderPath)
+			os.Exit(1)
+		}
+
+		if !info.IsDir() {
+			utils.ErrorPrintfln("Not a directory: %s", folderPath)
+			os.Exit(1)
+		}
+
+		// dump files in the folder
+		files, err := os.ReadDir(folderPath)
+		if err != nil {
+			utils.ErrorPrintfln("Unable to read directory: '%s'", folderPath)
 			os.Exit(1)
 		}
 
@@ -120,25 +79,26 @@ func main() {
 				continue
 			}
 
-				filePath := filepath.Join(sourceDir, file.Name())
+			filePath := filepath.Join(folderPath, file.Name())
-				if outputDirSpecified {
+			// skip if the extension is not .ncm
-					_ = processFile(filePath, outputDir)
+			if filePath[len(filePath)-4:] != ".ncm" {
-				} else {
+				continue
-					_ = processFile(filePath, sourceDir)
 			}
+			err = processFile(filePath)
+			if err != nil {
+				continue
 			}
 		}
 	} else {
-		// process files from args
+		// dump file from args
 		for _, filePath := range flag.Args() {
 			// skip if the extension is not .ncm
 			if filePath[len(filePath)-4:] != ".ncm" {
 				continue
 			}
-			if outputDirSpecified {
+			err := processFile(filePath)
-				_ = processFile(filePath, outputDir)
+			if err != nil {
-			} else {
+				continue
-				_ = processFile(filePath, sourceDir)
 			}
 		}
 	}

ncmcrypt/ncmcrypt.go

@@ -7,7 +7,6 @@ import (
 	"fmt"
 	"github.com/bogem/id3v2/v2"
 	"github.com/go-flac/flacpicture"
-	"github.com/go-flac/flacvorbis"
 	"github.com/go-flac/go-flac"
 	"github.com/taurusxin/ncmdump-go/utils"
 	"io"
@@ -162,8 +161,7 @@ func (ncm *NeteaseCloudMusic) Dump(targetDir string) (bool, error) {
 // FixMetadata will fix the missing metadata for target music file, the source of the metadata comes from origin ncm file.
 // Since NeteaseCloudMusic version 3.0, the album cover image is no longer embedded in the ncm file. If the parameter is true, it means downloading the image from the NetEase server and embedding it into the target music file (network connection required)
 func (ncm *NeteaseCloudMusic) FixMetadata(fetchAlbumImageFromRemote bool) (bool, error) {
-	// only fetch album image from remote when it's not embedded in the ncm file
+	if fetchAlbumImageFromRemote {
-	if len(ncm.mImageData) <= 0 && fetchAlbumImageFromRemote {
 		// get the album pic from url
 		resp, err := http.Get(ncm.mAlbumPicUrl)
 		if err != nil {
@@ -185,7 +183,6 @@ func (ncm *NeteaseCloudMusic) FixMetadata(fetchAlbumImageFromRemote bool) (bool,
 			return false, err
 		}
 		defer audioFile.Close()
-		audioFile.SetDefaultEncoding(id3v2.EncodingUTF8)
 		audioFile.SetTitle(ncm.mMetadata.mName)
 		audioFile.SetArtist(ncm.mMetadata.mArtist)
 		audioFile.SetAlbum(ncm.mMetadata.mAlbum)
@@ -219,36 +216,12 @@ func (ncm *NeteaseCloudMusic) FixMetadata(fetchAlbumImageFromRemote bool) (bool,
 			pictureMeta := pic.Marshal()
 			audioFile.Meta = append(audioFile.Meta, &pictureMeta)
 		}
-
+		generalMeta := &flac.MetaDataBlock{
-		var cmts *flacvorbis.MetaDataBlockVorbisComment
+			Type: flac.VorbisComment,
-		var cmtIdx int
+			Data: []byte(fmt.Sprintf("title=%s\nartist=%s\nalbum=%s", ncm.mMetadata.mName, ncm.mMetadata.mArtist, ncm.mMetadata.mAlbum)),
-		for idx, meta := range audioFile.Meta {
-			if meta.Type == flac.VorbisComment {
-				cmts, err = flacvorbis.ParseFromMetaDataBlock(*meta)
-				cmtIdx = idx
-				if err != nil {
-					return false, err
 		}
-			}
+		audioFile.Meta = append(audioFile.Meta, generalMeta)
-		}
-		if cmts == nil && cmtIdx > 0 {
-			cmts = flacvorbis.New()
-		}
-
-		_ = cmts.Add(flacvorbis.FIELD_TITLE, ncm.mMetadata.mName)
-		_ = cmts.Add(flacvorbis.FIELD_ARTIST, ncm.mMetadata.mArtist)
-		_ = cmts.Add(flacvorbis.FIELD_ALBUM, ncm.mMetadata.mAlbum)
-
-		cmtsmeta := cmts.Marshal()
-
-		if cmtIdx > 0 {
-			audioFile.Meta[cmtIdx] = &cmtsmeta
-		} else {
-			audioFile.Meta = append(audioFile.Meta, &cmtsmeta)
-		}
-
 		err = audioFile.Save(ncm.mDumpFilePath)
-
 		if err != nil {
 			return false, err
 		}

utils/file.go

@@ -1,7 +1,6 @@
 package utils
 
 import (
-	"os"
 	"path/filepath"
 	"strings"
 )
@@ -10,39 +9,3 @@ func ReplaceExtension(filepathStr, newExt string) string {
 	ext := filepath.Ext(filepathStr)
 	return strings.TrimSuffix(filepathStr, ext) + newExt
 }
-
-func PathExists(path string) bool {
-	_, err := os.Stat(path)
-	if err == nil {
-		return true
-	}
-	if os.IsNotExist(err) {
-		return false
-	}
-	return false
-}
-
-func IsDir(path string) bool {
-	s, err := os.Stat(path)
-	if err != nil {
-
-		return false
-	}
-	return s.IsDir()
-}
-
-func GetRelativePath(from, to string) string {
-	rel, err := filepath.Rel(from, to)
-	if err != nil {
-		return ""
-	}
-	return rel
-}
-
-func IsRegularFile(path string) bool {
-	s, err := os.Stat(path)
-	if err != nil {
-		return false
-	}
-	return s.Mode().IsRegular()
-}