server: pass source and target language from api to pipeline

server/reflector/views/rtc_offer.py

@@ -7,7 +7,6 @@ import av
 from aiortc import MediaStreamTrack, RTCPeerConnection, RTCSessionDescription
 from fastapi import APIRouter, Request
 from pydantic import BaseModel
-
 from reflector.events import subscribers_shutdown
 from reflector.logger import logger
 from reflector.processors import (
@@ -81,6 +80,8 @@ async def rtc_offer_base(
     event_callback=None,
     event_callback_args=None,
     audio_filename: Path | None = None,
+    source_language: str = "en",
+    target_language: str = "en",
 ):
     # build an rtc session
     offer = RTCSessionDescription(sdp=params.sdp, type=params.type)
@@ -110,7 +111,6 @@ async def rtc_offer_base(
             result = {
                 "cmd": "SHOW_TRANSCRIPTION",
                 "text": transcript.text,
-                "translation": transcript.translation,
             }
             ctx.data_channel.send(dumps(result))
 
@@ -179,6 +179,8 @@ async def rtc_offer_base(
         TranscriptFinalSummaryProcessor.as_threaded(callback=on_final_summary),
     ]
     ctx.pipeline = Pipeline(*processors)
+    ctx.pipeline.set_pref("audio:source_language", source_language)
+    ctx.pipeline.set_pref("audio:target_language", target_language)
     # FIXME: warmup is not working well yet
     # await ctx.pipeline.warmup()