1d338810b1
Live-Test gegen OpenRouter ergab: /audio/transcriptions erwartet JSON mit
input_audio:{data(base64),format} - NICHT multipart/form-data. Die fruehere
Umstellung auf multipart (OpenAI-Standard) war fuer OpenRouter falsch.
- STT-Provider zurueck auf JSON/base64 (mit robuster Fehlerbehandlung)
- verifiziert per TTS->WAV->STT Round-Trip: Text korrekt zurueck transkribiert
- LLM, TTS und STT funktionieren jetzt alle live gegen OpenRouter
- Doku-Referenz aktualisiert (multipart -> JSON/base64)
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
55 lines
2.1 KiB
Python
55 lines
2.1 KiB
Python
import base64
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import httpx
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from app.providers.stt.base import STTProvider
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class OpenRouterSTTProvider(STTProvider):
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def __init__(self, api_key: str, model: str):
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self.api_key = (api_key or "").strip()
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self.model = (model or "").strip()
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async def transcribe(self, audio_bytes: bytes, fmt: str, language: str | None = None) -> str:
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if not self.api_key:
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raise ValueError("OPENROUTER_API_KEY is empty")
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if not self.model:
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raise ValueError("OPENROUTER_STT_MODEL is empty")
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if not audio_bytes:
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raise ValueError("STT input audio is empty")
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# OpenRouter /audio/transcriptions erwartet JSON mit base64-Audio
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# (NICHT multipart/form-data). Quelle: OpenRouter-Doku (STT).
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payload = {
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"model": self.model,
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"input_audio": {
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"data": base64.b64encode(audio_bytes).decode("utf-8"),
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"format": fmt,
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},
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}
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if language:
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payload["language"] = language
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timeout = httpx.Timeout(connect=10.0, read=120.0, write=30.0, pool=10.0)
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async with httpx.AsyncClient(timeout=timeout) as client:
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try:
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response = await client.post(
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"https://openrouter.ai/api/v1/audio/transcriptions",
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headers={
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"Authorization": f"Bearer {self.api_key}",
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"Content-Type": "application/json",
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},
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json=payload,
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)
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response.raise_for_status()
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except httpx.HTTPStatusError as exc:
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raise RuntimeError(
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f"OpenRouter STT error {exc.response.status_code}: {exc.response.text}"
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) from exc
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except httpx.TimeoutException as exc:
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raise RuntimeError("OpenRouter STT timeout") from exc
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except httpx.HTTPError as exc:
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raise RuntimeError(f"OpenRouter STT transport error: {exc}") from exc
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return response.json().get("text", "")
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