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Merge pull request #341 from leng-yue/main
Feat/Support Fish Audio
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128 changes: 128 additions & 0 deletions
128
agents/ten_packages/extension/fish_audio_tts/fish_audio_tts.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,128 @@ | ||
| /** | ||
| * | ||
| * Agora Real Time Engagement | ||
| * Created by Hai Guo in 2024-08. | ||
| * Copyright (c) 2024 Agora IO. All rights reserved. | ||
| * | ||
| */ | ||
| // An extension written by Go for TTS | ||
| package extension | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "fmt" | ||
| "io" | ||
| "log/slog" | ||
| "net/http" | ||
| "time" | ||
|
|
||
| "github.com/vmihailenco/msgpack/v5" | ||
| ) | ||
|
|
||
| type fishAudioTTS struct { | ||
| client *http.Client //? | ||
| config fishAudioTTSConfig | ||
| } | ||
|
|
||
| type fishAudioTTSConfig struct { | ||
| ApiKey string | ||
| ModelId string | ||
| OptimizeStreamingLatency bool | ||
| RequestTimeoutSeconds int | ||
| BaseUrl string | ||
| } | ||
|
|
||
| func defaultFishAudioTTSConfig() fishAudioTTSConfig { | ||
| return fishAudioTTSConfig{ | ||
| ApiKey: "", | ||
| ModelId: "d8639b5cc95548f5afbcfe22d3ba5ce5", | ||
| OptimizeStreamingLatency: true, | ||
| RequestTimeoutSeconds: 30, | ||
| BaseUrl: "https://api.fish.audio", | ||
| } | ||
| } | ||
|
|
||
| func newFishAudioTTS(config fishAudioTTSConfig) (*fishAudioTTS, error) { | ||
| return &fishAudioTTS{ | ||
| config: config, | ||
| client: &http.Client{ | ||
| Transport: &http.Transport{ | ||
| MaxIdleConnsPerHost: 10, | ||
| // Keep-Alive connection never expires | ||
| IdleConnTimeout: time.Second * 0, | ||
| }, | ||
| Timeout: time.Second * time.Duration(config.RequestTimeoutSeconds), | ||
| }, | ||
| }, nil | ||
| } | ||
|
|
||
| func (e *fishAudioTTS) textToSpeechStream(streamWriter io.Writer, text string) (err error) { | ||
| latency := "normal" | ||
| if e.config.OptimizeStreamingLatency { | ||
| latency = "balanced" | ||
| } | ||
|
|
||
| // Create the payload | ||
| payload := map[string]interface{}{ | ||
| "text": text, | ||
| "chunk_length": 100, | ||
| "latency": latency, | ||
| "reference_id": e.config.ModelId, | ||
| "format": "pcm", // 44100/ 1ch/ 16bit | ||
| } | ||
|
|
||
| // Encode the payload to MessagePack | ||
| body, err := msgpack.Marshal(payload) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| // Create a new POST request | ||
| req, err := http.NewRequest("POST", e.config.BaseUrl+"/v1/tts", bytes.NewBuffer(body)) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| // Set the headers | ||
| req.Header.Add("Authorization", "Bearer "+e.config.ApiKey) | ||
| req.Header.Set("Content-Type", "application/msgpack") | ||
|
|
||
| // Create a client and send the request | ||
| client := e.client | ||
| resp, err := client.Do(req) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| defer resp.Body.Close() | ||
|
|
||
| if err != nil { | ||
| return fmt.Errorf("TextToSpeechStream failed, err: %v", err) | ||
| } | ||
|
|
||
| // Check the response status code | ||
| if resp.StatusCode != http.StatusOK { | ||
| slog.Error("Unexpected response status", "status", resp.StatusCode) | ||
| return fmt.Errorf("unexpected response status: %d", resp.StatusCode) | ||
| } | ||
|
|
||
| // Write the returned PCM data to streamWriter | ||
| buffer := make([]byte, 4096) // 4KB buffer size | ||
| for { | ||
| n, err := resp.Body.Read(buffer) | ||
| if err != nil && err != io.EOF { | ||
| slog.Error("Failed to read from response body", "error", err) | ||
| return fmt.Errorf("failed to read from response body: %w", err) | ||
| } | ||
| if n == 0 { | ||
| break // end of the stream | ||
| } | ||
|
|
||
| _, writeErr := streamWriter.Write(buffer[:n]) | ||
| if writeErr != nil { | ||
| slog.Error("Failed to write to streamWriter", "error", writeErr) | ||
| return fmt.Errorf("failed to write to streamWriter: %w", writeErr) | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } |
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