?say=XYZ to TTS

src/device/input/parse/v01/tts.go

@@ -0,0 +1,64 @@
+package v01
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"net/url"
+	"time"
+
+	"github.com/faiface/beep"
+	"github.com/faiface/beep/effects"
+	"github.com/faiface/beep/speaker"
+	"github.com/faiface/beep/wav"
+)
+
+func (v01 *V01) tts(text string) {
+	if err := v01._tts(text); err != nil {
+		log.Printf("failed to tts: %s: %v", text, err)
+	}
+}
+
+func (v01 *V01) _tts(text string) error {
+	if v01.cfg.Feedback.TTSURL == "" {
+		return nil
+	}
+
+	url, err := url.Parse(v01.cfg.Feedback.TTSURL)
+	if err != nil {
+		return err
+	}
+	if len(url.Path) < 2 {
+		url.Path = "/api/tts"
+	}
+	q := url.Query()
+	if q.Get("voice") == "" {
+		q.Set("voice", "en-us/glados-glow_tts")
+	}
+	if q.Get("lengthScale") == "" {
+		q.Set("lengthScale", "1")
+	}
+	q.Set("text", text)
+	url.RawQuery = q.Encode()
+
+	resp, err := http.Get(url.String())
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	b, _ := io.ReadAll(resp.Body)
+	if resp.StatusCode != http.StatusOK || resp.Header.Get("Content-Type") != "audio/wav" {
+		return fmt.Errorf("failed to call ttsurl: (%d) %s", resp.StatusCode, b)
+	}
+
+	decoder, format, err := wav.Decode(bytes.NewReader(b))
+	if err != nil {
+		return err
+	}
+	speaker.Init(format.SampleRate, format.SampleRate.N(time.Second/30))
+	speaker.Play(&effects.Volume{Streamer: beep.ResampleRatio(4, 1, &beep.Ctrl{Streamer: beep.Loop(1, decoder)})})
+	return nil
+}