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/
ivona.go
147 lines (120 loc) · 2.95 KB
/
ivona.go
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package main
import (
"encoding/json"
"errors"
"fmt"
"log"
"net/http"
"net/url"
"github.com/gorilla/mux"
ivonago "github.com/omie/ivona-go"
)
var (
client *ivonago.Ivona
voicesMap = make(map[string]ivonago.Voice)
)
func initIvona(accessKey, secretKey string) {
client = ivonago.New(accessKey, secretKey)
}
func loadVoices() error {
options := ivonago.Voice{}
listResp, err := client.ListVoices(options)
if err != nil {
return err
}
for _, v := range listResp.Voices {
voicesMap[v.Name] = v
}
log.Println("loaded voices: ", len(listResp.Voices))
return nil
}
func GetTTS(text, voice string) (resp []byte, err error) {
log.Println("--- GetTTS", text, voice)
v, ok := voicesMap[voice]
if !ok {
err = errors.New("Invalid voice name")
return
}
options := ivonago.NewSpeechOptions(text)
options.Voice = &v //set voice options
options.OutputFormat.Codec = "OGG"
r, err := client.CreateSpeech(options)
if err != nil {
log.Println("Error getting response from Ivona: text:", err)
return
}
return r.Audio, err
}
func GetVoices(name, language, gender string) (resp []byte, err error) {
log.Println("--- GetVoices", name, language, gender)
options := ivonago.Voice{name, language, gender}
r, err := client.ListVoices(options)
if err != nil {
log.Println("Error getting response from Ivona: text:", err)
return
}
js, err := json.Marshal(r)
if err != nil {
return
}
return js, err
}
func getTTSHandler(w http.ResponseWriter, r *http.Request) {
log.Println("--- getTTSHandler")
var text, voice string = "", ""
if r.Method == "GET" {
u, _ := url.Parse(r.URL.String())
queryParams := u.Query()
_text, ok := queryParams["text"]
if ok {
text = _text[0]
}
_voice, ok := queryParams["voice"]
if ok {
voice = _voice[0]
}
}
if r.Method == "POST" {
r.ParseForm()
text = r.FormValue("text")
voice = r.FormValue("voice")
}
if text == "" {
http.Error(w, "text is empty", http.StatusInternalServerError)
return
}
if voice == "" {
voice = "Nicole"
}
tts, err := GetTTS(text, voice)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "audio/ogg")
w.Write(tts)
}
func getVoicesHandler(w http.ResponseWriter, r *http.Request) {
log.Println("--- getVoicesHandler")
r.ParseForm()
name := r.FormValue("name")
language := r.FormValue("language")
gender := r.FormValue("gender")
voices, err := GetVoices(name, language, gender)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
w.Write(voices)
}
func StartHTTPServer(host string, port string) error {
r := mux.NewRouter()
r.StrictSlash(true)
r.HandleFunc("/", getTTSHandler).Methods("GET", "POST")
r.HandleFunc("/voices", getVoicesHandler).Methods("POST")
http.Handle("/", r)
bind := fmt.Sprintf("%s:%s", host, port)
log.Println("listening on:", bind)
return http.ListenAndServe(bind, nil)
}