fix: tts can't play on ios(#849)

(cherry picked from commit 1ecb1f62dc1d26720298186720b7970b52ee1d5e)

(cherry picked from commit 0487f849bcb887001cb728a21a0ac64c804b7bc3)

coolq/cqcode.go

@@ -24,9 +24,11 @@ import (
 	"github.com/Mrs4s/MiraiGo/binary"
 	"github.com/Mrs4s/MiraiGo/message"
 	"github.com/Mrs4s/MiraiGo/utils"
-	"github.com/Mrs4s/go-cqhttp/global"
 	log "github.com/sirupsen/logrus"
 	"github.com/tidwall/gjson"
+
+	"github.com/Mrs4s/go-cqhttp/global"
+	"github.com/Mrs4s/go-cqhttp/global/codec"
 )
 
 /*
@@ -667,7 +669,7 @@ func (bot *CQBot) ToElement(t string, d map[string]string, isGroup bool) (m inte
 		if err != nil {
 			return nil, err
 		}
-		return &message.VoiceElement{Data: data}, nil
+		return &message.VoiceElement{Data: codec.RecodeTo24K(data)}, nil
 	case "record":
 		f := d["file"]
 		data, err := global.FindFile(f, d["cache"], global.VoicePath)

global/codec/codec.go

@@ -51,3 +51,16 @@ func EncodeToSilk(record []byte, tempName string, useCache bool) (silkWav []byte
 	}
 	return
 }
+
+// RecodeTo24K 将silk重新编码为 24000 bit rate
+func RecodeTo24K(data []byte) []byte {
+	pcm, err := silk.DecodeSilkBuffToPcm(data, 24000)
+	if err != nil {
+		panic(err)
+	}
+	data, err = silk.EncodePcmBuffToSilk(pcm, 24000, 24000, true)
+	if err != nil {
+		panic(err)
+	}
+	return data
+}

global/codec/codec_unsupportedarch.go

@@ -8,3 +8,8 @@ import "errors"
 func EncodeToSilk(record []byte, tempName string, useCache bool) ([]byte, error) {
 	return nil, errors.New("not supported now")
 }
+
+// RecodeTo24K 将silk重新编码为 24000 bit rate
+func RecodeTo24K(data []byte) []byte {
+	return data
+}

global/codec/codec_unsupportedos.go

@@ -8,3 +8,8 @@ import "errors"
 func EncodeToSilk(record []byte, tempName string, useCache bool) ([]byte, error) {
 	return nil, errors.New("not supported now")
 }
+
+// RecodeTo24K 将silk重新编码为 24000 bit rate
+func RecodeTo24K(data []byte) []byte {
+	return data
+}

global/codec/codec_windows_arm.go

@@ -6,3 +6,8 @@ import "errors"
 func EncodeToSilk(record []byte, tempName string, useCache bool) ([]byte, error) {
 	return nil, errors.New("not supported now")
 }
+
+// RecodeTo24K 将silk重新编码为 24000 bit rate
+func RecodeTo24K(data []byte) []byte {
+	return data
+}