-
Notifications
You must be signed in to change notification settings - Fork 0
/
gtts.go
146 lines (118 loc) · 2.97 KB
/
gtts.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
package gtts
import (
"crypto/md5"
"encoding/hex"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"os"
"github.com/Duckduckgot/gtts/handlers"
)
/**
* Required:
* - mplayer
*
* Use:
*
* speech := htgotts.Speech{Folder: "audio", Language: "en", Handler: MPlayer}
*/
// Speech struct
type Speech struct {
Folder string
Language string
Handler handlers.PlayerInterface
}
// Creates a speech file with a given name
func (speech *Speech) CreateSpeechFile(text string, fileName string) (string, error) {
var err error
f := speech.Folder + "/" + fileName + ".mp3"
if err = speech.createFolderIfNotExists(speech.Folder); err != nil {
return "", err
}
if err = speech.downloadIfNotExists(f, text); err != nil {
return "", err
}
return f, nil
}
// Plays an existent .mp3 file
func (speech *Speech) PlaySpeechFile(fileName string) error {
if speech.Handler == nil {
mplayer := handlers.MPlayer{}
return mplayer.Play(fileName)
}
return speech.Handler.Play(fileName)
}
// Speak downloads speech and plays it using mplayer
func (speech *Speech) Speak(text string) error {
var err error
generatedHashName := speech.generateHashName(text)
fileName, err := speech.CreateSpeechFile(text, generatedHashName)
if err != nil {
return err
}
return speech.PlaySpeechFile(fileName)
}
/**
* Create the folder if does not exists.
*/
func (speech *Speech) createFolderIfNotExists(folder string) error {
dir, err := os.Open(folder)
if os.IsNotExist(err) {
return os.MkdirAll(folder, 0700)
}
dir.Close()
return nil
}
/**
* Download the voice file if does not exists.
*/
func (speech *Speech) downloadIfNotExists(fileName string, text string) error {
f, err := os.Open(fileName)
if err != nil {
url := fmt.Sprintf("http://translate.google.com/translate_tts?ie=UTF-8&total=1&idx=0&textlen=32&client=tw-ob&q=%s&tl=%s", url.QueryEscape(text), speech.Language)
response, err := http.Get(url)
if err != nil {
return err
}
defer response.Body.Close()
output, err := os.Create(fileName)
if err != nil {
return err
}
_, err = io.Copy(output, response.Body)
return err
}
f.Close()
return nil
}
// Speak downloads speech and plays it using mplayer
func (speech *Speech) SpeakB(text string) ([]byte, error) {
var err error
speakbyte, err := speech.downloadByte(text)
if err != nil {
return nil, err
}
return speakbyte, nil
}
/**
* Download the voice as byte.
*/
func (speech *Speech) downloadByte(text string) ([]byte, error) {
url := fmt.Sprintf("http://translate.google.com/translate_tts?ie=UTF-8&total=1&idx=0&textlen=32&client=tw-ob&q=%s&tl=%s", url.QueryEscape(text), speech.Language)
response, err := http.Get(url)
if err != nil {
return nil, err
}
defer response.Body.Close()
body, err := ioutil.ReadAll(response.Body)
if err != nil {
return nil, err
}
return body, nil
}
func (speech *Speech) generateHashName(name string) string {
hash := md5.Sum([]byte(name))
return fmt.Sprintf("%s_%s", speech.Language, hex.EncodeToString(hash[:]))
}