# Copyright 2021-2022 Google LLC # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # https://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # ----------------------------------------------------------------------------- # Imports # ----------------------------------------------------------------------------- import asyncio import sys import os import logging import websockets from typing import Optional from bumble import decoder from bumble import gatt from bumble.core import AdvertisingData from bumble.device import Device, AdvertisingParameters from bumble.transport import open_transport_or_link from bumble.profiles import asha ws_connection: Optional[websockets.WebSocketServerProtocol] = None g722_decoder = decoder.G722Decoder() async def ws_server(ws_client: websockets.WebSocketServerProtocol, path: str): del path global ws_connection ws_connection = ws_client async for message in ws_client: print(message) # ----------------------------------------------------------------------------- async def main() -> None: if len(sys.argv) != 3: print('Usage: python run_asha_sink.py ') print('example: python run_asha_sink.py device1.json usb:0') return async with await open_transport_or_link(sys.argv[2]) as hci_transport: device = Device.from_config_file_with_hci( sys.argv[1], hci_transport.source, hci_transport.sink ) def on_audio_packet(packet: bytes) -> None: global ws_connection if ws_connection: offset = 1 while offset < len(packet): pcm_data = g722_decoder.decode_frame(packet[offset : offset + 80]) offset += 80 asyncio.get_running_loop().create_task(ws_connection.send(pcm_data)) else: logging.info("No active client") asha_service = asha.AshaService( capability=0, hisyncid=b'\x01\x02\x03\x04\x05\x06\x07\x08', device=device, audio_sink=on_audio_packet, ) device.add_service(asha_service) # Set the advertising data advertising_data = ( bytes( AdvertisingData( [ ( AdvertisingData.COMPLETE_LOCAL_NAME, bytes(device.name, 'utf-8'), ), (AdvertisingData.FLAGS, bytes([0x06])), ( AdvertisingData.INCOMPLETE_LIST_OF_16_BIT_SERVICE_CLASS_UUIDS, bytes(gatt.GATT_ASHA_SERVICE), ), ] ) ) + asha_service.get_advertising_data() ) # Go! await device.power_on() await device.create_advertising_set( auto_restart=True, advertising_data=advertising_data, advertising_parameters=AdvertisingParameters( primary_advertising_interval_min=100, primary_advertising_interval_max=100, ), ) await websockets.serve(ws_server, port=8888) await hci_transport.source.terminated # ----------------------------------------------------------------------------- logging.basicConfig( level=os.environ.get('BUMBLE_LOGLEVEL', 'DEBUG').upper(), format='%(asctime)s.%(msecs)03d %(levelname)s %(module)s - %(funcName)s: %(message)s', datefmt='%Y-%m-%d %H:%M:%S', ) asyncio.run(main())