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"""Xiaomi MiMo ASR — plugin form.
Subclasses :class:`agent.stt_provider.STTProvider`. Sends audio to MiMo's
chat/completions API with ``input_audio`` format and returns transcribed text.
Xiaomi ASR does **not** use the standard ``/v1/audio/transcriptions`` endpoint.
Audio must be wav or mp3; other formats are auto-converted via ffmpeg.
Auth env var::
XIAOMI_API_KEY=... # https://platform.xiaomimimo.com
XIAOMI_BASE_URL=... # optional, defaults to https://api.xiaomimimo.com/v1
"""
from __future__ import annotations
import base64
import json
import logging
import os
import ssl
import subprocess
import tempfile
import urllib.error
import urllib.request
from typing import Any, Dict, List, Optional
from agent.stt_provider import STTProvider
logger = logging.getLogger(__name__)
DEFAULT_MODEL = "mimo-v2.5-asr"
DEFAULT_LANGUAGE = "zh"
_DEFAULT_BASE_URL = "https://api.xiaomimimo.com/v1"
_MODELS: List[Dict[str, Any]] = [
{"id": "mimo-v2.5-asr", "display": "MiMo V2.5 ASR", "languages": ["zh", "en"]},
]
def _get_api_base() -> str:
return os.environ.get("XIAOMI_BASE_URL", _DEFAULT_BASE_URL).rstrip("/")
class MiMoSTTProvider(STTProvider):
"""Xiaomi MiMo ASR (Speech-to-Text) provider."""
@property
def name(self) -> str:
return "mimo-asr"
@property
def display_name(self) -> str:
return "MiMo ASR (Xiaomi)"
def is_available(self) -> bool:
return bool(os.environ.get("XIAOMI_API_KEY"))
def list_models(self) -> List[Dict[str, Any]]:
return _MODELS
def default_model(self) -> Optional[str]:
return DEFAULT_MODEL
def default_language(self) -> Optional[str]:
return DEFAULT_LANGUAGE
def get_setup_schema(self) -> Dict[str, Any]:
return {
"name": "MiMo ASR (Xiaomi)",
"badge": "paid",
"tag": "V2.5 — speech-to-text, optimized for Chinese.",
"env_vars": [
{
"key": "XIAOMI_API_KEY",
"prompt": "Xiaomi MiMo API key",
"url": "https://platform.xiaomimimo.com",
},
],
}
def transcribe(
self,
audio_path: str,
*,
model: Optional[str] = None,
language: Optional[str] = None,
**extra: Any,
) -> str:
api_key = os.environ.get("XIAOMI_API_KEY")
if not api_key:
raise RuntimeError(
"XIAOMI_API_KEY environment variable is not set. "
"Get your key at https://platform.xiaomimimo.com"
)
model_id = model or DEFAULT_MODEL
model_id = model_id.strip()
language = language or DEFAULT_LANGUAGE
audio_path = audio_path.replace("\\", "/") # normalize Windows paths
ext = os.path.splitext(audio_path)[1].lower()
if ext in (".wav",):
fmt = "wav"
audio_file = audio_path
elif ext in (".mp3",):
fmt = "mp3"
audio_file = audio_path
else:
fmt = "wav"
try:
subprocess.run(["ffmpeg", "-version"], capture_output=True, check=True)
except (FileNotFoundError, subprocess.CalledProcessError):
raise RuntimeError(
f"ffmpeg is required to convert {ext} to wav/mp3 for Xiaomi ASR"
)
fd, audio_file = tempfile.mkstemp(suffix=".wav", prefix="hermes-asr-")
os.close(fd)
try:
subprocess.run(
["ffmpeg", "-y", "-i", audio_path, "-ar", "16000", "-ac", "1",
"-f", "wav", audio_file],
capture_output=True, check=True,
)
except subprocess.CalledProcessError as e:
os.unlink(audio_file)
raise RuntimeError(
f"ffmpeg conversion failed: {e.stderr.decode(errors='replace')}"
) from e
try:
with open(audio_file, "rb") as f:
audio_b64 = base64.b64encode(f.read()).decode()
payload = json.dumps({
"model": model_id,
"messages": [{
"role": "user",
"content": [
{"type": "input_audio", "input_audio": {"data": audio_b64, "format": fmt}},
]
}]
}).encode()
req = urllib.request.Request(
f"{_get_api_base()}/chat/completions",
data=payload,
headers={
"Authorization": f"Bearer {api_key}",
"Content-Type": "application/json",
},
)
ctx = ssl.create_default_context()
logger.info("MiMo ASR: transcribing %s with model=%s language=%s", audio_path, model_id, language)
resp = urllib.request.urlopen(req, context=ctx, timeout=300)
response_data = json.loads(resp.read().decode())
choices = response_data.get("choices", [])
if not choices:
error_info = response_data.get("error", {})
raise RuntimeError(
error_info.get("message", "No transcription result")
)
msg = choices[0].get("message", {})
transcript = msg.get("content", "").strip()
if not transcript:
raise RuntimeError("Xiaomi ASR returned empty transcript")
return transcript
except urllib.error.HTTPError as e:
body = e.read().decode(errors="replace")
raise RuntimeError(f"HTTP {e.code}: {body}") from e
except urllib.error.URLError as e:
raise RuntimeError(f"URL error: {e.reason}") from e
finally:
if 'audio_file' in locals() and audio_file != audio_path and os.path.exists(audio_file):
os.unlink(audio_file)
|
