annotate dictation/webrtc_smoke.py @ 281:c57149ad216e default tip

Copilot-Session: f68442b1-fa8f-46a0-9689-81710613bbd4
author MrJuneJune <me@mrjunejune.com>
date Tue, 18 Aug 2026 22:18:15 -0700
parents 78699f810817
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1 from __future__ import annotations
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2
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3 import argparse
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4 import asyncio
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5 import json
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6
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7 from aiortc import RTCPeerConnection, RTCSessionDescription
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8 from aiortc.contrib.media import MediaPlayer
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9 import httpx
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10
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11
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12 async def run(server_url: str, audio_path: str, timeout: float) -> None:
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13 peer = RTCPeerConnection()
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14 channel = peer.createDataChannel("transcripts")
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15 player = MediaPlayer(audio_path)
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16 if player.audio is None:
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17 raise RuntimeError("Input file does not contain an audio track")
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18 peer.addTrack(player.audio)
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19 final_received = asyncio.Event()
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20 session_id = None
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21
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22 @channel.on("message")
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23 def on_message(message):
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24 event = json.loads(message)
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25 print(json.dumps(event, ensure_ascii=False), flush=True)
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26 if event.get("type") == "transcript.final":
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27 final_received.set()
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28
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29 try:
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30 offer = await peer.createOffer()
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31 await peer.setLocalDescription(offer)
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32 async with httpx.AsyncClient(timeout=timeout) as client:
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33 response = await client.post(
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34 f"{server_url}/api/webrtc/offer",
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35 json={
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36 "sdp": peer.localDescription.sdp,
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37 "type": peer.localDescription.type,
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38 },
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39 )
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40 response.raise_for_status()
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41 answer = response.json()
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42 session_id = answer["sessionId"]
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43 await peer.setRemoteDescription(
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44 RTCSessionDescription(
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45 sdp=answer["sdp"],
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46 type=answer["type"],
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47 )
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48 )
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49 await asyncio.wait_for(final_received.wait(), timeout=timeout)
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50 await client.post(
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51 f"{server_url}/api/webrtc/session/{session_id}/close"
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52 )
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53 finally:
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54 await peer.close()
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55
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57 def main() -> None:
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58 parser = argparse.ArgumentParser()
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59 parser.add_argument("audio")
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60 parser.add_argument(
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61 "--server",
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62 default="http://127.0.0.1:8090",
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63 )
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64 parser.add_argument("--timeout", type=float, default=60.0)
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65 args = parser.parse_args()
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66 asyncio.run(run(args.server.rstrip("/"), args.audio, args.timeout))
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68
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69 if __name__ == "__main__":
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70 main()