Merge "Avatar: Add g722 decoder in bumble side" am: 3e63bc01

import struct

from bumble.core import AdvertisingData

from bumble.decoder import G722Decoder

from bumble.device import Connection, Connection as BumbleConnection, Device

from bumble.gatt import (

    GATT_ASHA_AUDIO_CONTROL_POINT_CHARACTERISTIC,

class AshaService(AshaServicer):

    DECODE_FRAME_LENGTH = 80

    device: Device

    asha_service: Optional[AshaGattService]

        if not (connection := self.device.lookup_connection(connection_handle)):

            raise RuntimeError(f"Unknown connection for connection_handle:{connection_handle}")

        decoder = G722Decoder()

        queue: asyncio.Queue[bytes] = asyncio.Queue()

        def on_data(asha_connection: BumbleConnection, data: bytes) -> None:

        try:

            while data := await queue.get():

                yield CaptureAudioResponse(data=data)

                output_bytes = bytearray()

                # First byte is sequence number, last 160 bytes are audio payload.

                audio_payload = data[1:]

                data_length = int(len(audio_payload) / AshaService.DECODE_FRAME_LENGTH)

                for i in range(0, data_length):

                    input_data = audio_payload[

                        i * AshaService.DECODE_FRAME_LENGTH : i * AshaService.DECODE_FRAME_LENGTH

                        + AshaService.DECODE_FRAME_LENGTH

                    ]

                    decoded_data = decoder.decode_frame(input_data)

                    output_bytes.extend(decoded_data)

                yield CaptureAudioResponse(data=bytes(output_bytes))

        finally:

            self.asha_service.remove_listener("data", on_data)  # type: ignore