Add adm-aac mode

README.md

@@ -22,20 +22,11 @@
 
 - `alac (audio-alac-stereo)`
 - `ec3 (audio-atmos / audio-ec3)`
-
-### Python项目
-
-如需下载AAC推荐使用WorldObservationLog的[AppleMusicDecrypt](https://github.com/WorldObservationLog/AppleMusicDecrypt)
-
-[AppleMusicDecrypt](https://github.com/WorldObservationLog/AppleMusicDecrypt)支持以下编码
-
-- `alac (audio-alac-stereo)`
-- `ec3 (audio-atmos / audio-ec3)`
-- `ac3 (audio-ac3)`
 - `aac (audio-stereo)`
 - `aac-binaural (audio-stereo-binaural)`
 - `aac-downmix (audio-stereo-downmix)`
 
+
 # Apple Music ALAC / Dolby Atmos Downloader
 
 Original script by Sorrow. Modified by me to include some fixes and improvements.
@@ -63,6 +54,7 @@ Original script by Sorrow. Modified by me to include some fixes and improvements
 8. Start downloading singles: `go run main.go --select https://music.apple.com/us/album/whenever-you-need-somebody-2022-remaster/1624945511` input numbers separated by spaces.
 9. Start downloading some playlists: `go run main.go https://music.apple.com/us/playlist/taylor-swift-essentials/pl.3950454ced8c45a3b0cc693c2a7db97b` or `go run main.go https://music.apple.com/us/playlist/hi-res-lossless-24-bit-192khz/pl.u-MDAWvpjt38370N`.
 10. For dolby atmos: `go run main.go --atmos https://music.apple.com/us/album/1989-taylors-version-deluxe/1713845538`.
+11. For adm aac: `go run main.go --aac https://music.apple.com/us/album/1989-taylors-version-deluxe/1713845538`.
 
 [中文教程-详见方法三](https://telegra.ph/Apple-Music-Alac高解析度无损音乐下载教程-04-02-2)
 

config.yaml

@@ -19,6 +19,7 @@ get-m3u8-port: "127.0.0.1:20020"
 get-m3u8-from-device: true
 #set 'all' to retrieve all m3u8, and set 'hires' to only detect hires m3u8.
 get-m3u8-mode: hires # all hires
+aac-type: aac # aac aac-binaural aac-downmix
 alac-max: 192000  #192000 96000 48000 44100
 atmos-max: 2768  #2768 2448
 limit-max: 200

main.go

@@ -34,6 +34,7 @@ import (
 var (
 	forbiddenNames = regexp.MustCompile(`[/\\<>:"|?*]`)
 	dl_atmos      bool
+	dl_aac        bool
 	dl_select     bool
 	artist_select bool
 	alac_max      *int
@@ -428,6 +429,8 @@ func rip(albumId string, token string, storefront string, userToken string) erro
 	var Codec string
 	if dl_atmos {
 		Codec = "Atmos"
+	} else if dl_aac {
+		Codec = "AAC"
 	} else {
 		Codec = "ALAC"
 	}
@@ -859,6 +862,7 @@ func main() {
 	}
 	// Define command-line flags
 	pflag.BoolVar(&dl_atmos, "atmos", false, "Enable atmos download mode")
+	pflag.BoolVar(&dl_aac, "aac", false, "Enable adm-aac download mode")
 	pflag.BoolVar(&dl_select, "select", false, "Enable selective download")
 	pflag.BoolVar(&artist_select, "all-album", false, "Download all artist albums")
 	alac_max = pflag.Int("alac-max", -1, "Specify the max quality for download alac")
@@ -1155,21 +1159,33 @@ func extractMediaQuality(b string) (string, error) {
 	})
 	var Quality string
 	for _, variant := range master.Variants {
-		if variant.Codecs == "alac" {
-			split := strings.Split(variant.Audio, "-")
-			length := len(split)
-			length_int, err := strconv.Atoi(split[length-2])
-			if err != nil {
-				return "", err
-			}
-			if length_int <= Config.AlacMax {
-				HZ, err := strconv.Atoi(split[length-2])
-				if err != nil {
-					fmt.Println(err)
+		if dl_aac {
+			if variant.Codecs == "mp4a.40.2" {
+				aacregex := regexp.MustCompile(`audio-stereo-\d+`)
+				replaced := aacregex.ReplaceAllString(variant.Audio, "aac")
+				split := strings.Split(variant.Audio, "-")
+				if replaced == Config.AacType {
+					Quality = fmt.Sprintf("%skbps", split[2])
+					break
+				}
+			}
+		} else {
+			if variant.Codecs == "alac" {
+				split := strings.Split(variant.Audio, "-")
+				length := len(split)
+				length_int, err := strconv.Atoi(split[length-2])
+				if err != nil {
+					return "", err
+				}
+				if length_int <= Config.AlacMax {
+					HZ, err := strconv.Atoi(split[length-2])
+					if err != nil {
+						fmt.Println(err)
+					}
+					KHZ := float64(HZ) / 1000.0
+					Quality = fmt.Sprintf("%sB-%.1fkHz", split[length-1], KHZ)
+					break
 				}
-				KHZ := float64(HZ) / 1000.0
-				Quality = fmt.Sprintf("%sB-%.1fkHz", split[length-1], KHZ)
-				break
 			}
 		}
 	}
@@ -1222,6 +1238,21 @@ func extractMedia(b string) (string, error) {
 					break
 				}
 			}
+		} else if dl_aac {
+			if variant.Codecs == "mp4a.40.2" {
+				aacregex := regexp.MustCompile(`audio-stereo-\d+`)
+				replaced := aacregex.ReplaceAllString(variant.Audio, "aac")
+				//split := strings.Split(variant.Audio, "-")
+				if replaced == Config.AacType {
+					fmt.Printf("%s\n", variant.Audio)
+					streamUrlTemp, err := masterUrl.Parse(variant.URI)
+					if err != nil {
+						panic(err)
+					}
+					streamUrl = streamUrlTemp
+					break
+				}
+			}
 		} else {
 			if variant.Codecs == "alac" {
 				split := strings.Split(variant.Audio, "-")

utils/structs/structs.go

@@ -28,6 +28,7 @@ type ConfigSet struct {
 	GetM3u8Port             string `yaml:"get-m3u8-port"`
 	GetM3u8Mode             string `yaml:"get-m3u8-mode"`
 	GetM3u8FromDevice       bool   `yaml:"get-m3u8-from-device"`
+	AacType                 string `yaml:"aac-type"`
 	AlacMax                 int    `yaml:"alac-max"`
 	AtmosMax                int    `yaml:"atmos-max"`
 	LimitMax                int    `yaml:"limit-max"`