feat: refactor response parsing logic to support multiple formats (#782)

* feat: Refactor response parsing logic to support multiple formats

The parsing logic for responses in relay.go and relay-audio.go was refactored to support multiple response formats - 'json', 'text', 'srt', 'verbose_json', and 'vtt'. The existing `WhisperResponse` struct was renamed to `WhisperJsonResponse` and a new struct `WhisperVerboseJsonResponse` was added to support the 'verbose_json' format. Additional parsing functions were added to extract text from these new response types. This change was necessary to make the parsing logic more flexible and extendable for different types of responses.

* chore: update name

---------

Co-authored-by: JustSong <songquanpeng@foxmail.com>

controller/relay.go

@@ -141,10 +141,31 @@ type ImageRequest struct {
 	User           string `json:"user,omitempty"`
 }
 
-type WhisperResponse struct {
+type WhisperJSONResponse struct {
 	Text string `json:"text,omitempty"`
 }
 
+type WhisperVerboseJSONResponse struct {
+	Task     string    `json:"task,omitempty"`
+	Language string    `json:"language,omitempty"`
+	Duration float64   `json:"duration,omitempty"`
+	Text     string    `json:"text,omitempty"`
+	Segments []Segment `json:"segments,omitempty"`
+}
+
+type Segment struct {
+	Id               int     `json:"id"`
+	Seek             int     `json:"seek"`
+	Start            float64 `json:"start"`
+	End              float64 `json:"end"`
+	Text             string  `json:"text"`
+	Tokens           []int   `json:"tokens"`
+	Temperature      float64 `json:"temperature"`
+	AvgLogprob       float64 `json:"avg_logprob"`
+	CompressionRatio float64 `json:"compression_ratio"`
+	NoSpeechProb     float64 `json:"no_speech_prob"`
+}
+
 type TextToSpeechRequest struct {
 	Model          string  `json:"model" binding:"required"`
 	Input          string  `json:"input" binding:"required"`