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viettranx
04a9938f4f
- HTTP synthesize + test-connection now read tenant tts.timeout_ms (default 120s, was hardcoded 15s/10s). Gemini client default also bumped 30s→120s so both layers align when tenant config unset. - Inline prefix "Speak naturally: " prepended to single-voice text; multi-speaker transcripts pass through unchanged. - ErrTextOnlyResponse sentinel for 400 "text generation" bodies; single-voice retries once with stronger prefix. Narrowed needle list avoids false positives on unrelated 400s. - SynthesizeWithFallbackAdapted now returns errors.Join so sentinel survives fallback chain; HTTP 422 mapping + locale-translated ForLLM in agent tool (EN/VI/ZH catalogs). - Default Gemini model bumped to gemini-3.1-flash-tts-preview.
30 lines
1.4 KiB
Go
30 lines
1.4 KiB
Go
package gemini
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import "errors"
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// Sentinel errors returned by Provider.Synthesize.
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// Callers should use errors.Is to distinguish these from generic upstream errors.
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var (
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// ErrInvalidVoice is returned when the requested voice is not in the Gemini catalog.
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ErrInvalidVoice = errors.New("gemini: invalid voice")
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// ErrSpeakerLimit is returned when more than 2 speakers are requested.
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// Gemini TTS multi-speaker mode supports at most 2 speakers.
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ErrSpeakerLimit = errors.New("gemini: speaker limit exceeded (max 2)")
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// ErrInvalidModel is returned when the requested model is not in the allowlist.
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ErrInvalidModel = errors.New("gemini: invalid model")
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// errTransientNoAudio is an internal sentinel for non-deterministic Gemini
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// failures where the API returns 200 OK but no audio (typically
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// finishReason=OTHER). These are flaky on the preview TTS endpoints and
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// usually succeed on a single retry.
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errTransientNoAudio = errors.New("gemini: transient no-audio response")
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// ErrTextOnlyResponse is returned when Gemini TTS responds 400 indicating it
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// attempted text generation rather than speech synthesis. This typically
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// happens when the input is vague or contains translation/manipulation
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// intent. Retryable once with a stronger prefix (see tts.go retry logic).
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ErrTextOnlyResponse = errors.New("gemini: text-only response (model refused to synthesize audio)")
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)
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