Add support for manufacturer data

auracast/auracast_config.py

@@ -24,6 +24,7 @@ qos_config_mono_low_rel = AuracastQoSConfig( #highest latency
 @dataclass
 class AuracastGlobalConfig:
     qos_config: AuracastQoSConfig
+    debug: bool = False
     device_name: str = 'Auracaster'
     transport: str = ''
     auracast_device_address: hci.Address = hci.Address('F0:F1:F2:F3:F4:F5')
@@ -31,7 +32,7 @@ class AuracastGlobalConfig:
     octets_per_frame: int = 60 #48kbps@24kHz # bitrate = octets_per_frame * 8 / frame len
     frame_duration_us: int = 10000
     presentation_delay_us: int = 40000
-    debug: bool = False
+    manufacturer_data: tuple[int, bytes] = None
 
 @dataclass
 class AuracastBigConfig:

auracast/multicast.py

@@ -22,6 +22,7 @@ import contextlib
 import logging
 import wave
 import itertools
+import struct
 from typing import cast, Any, AsyncGenerator, Coroutine, Dict, Optional, Tuple
 from typing import List
 
@@ -170,6 +171,21 @@ async def run_broadcast(
                 ],
             )
             logger.info('Setup Advertising')
+            advertising_manufacturer_data = (
+            b''
+            if global_config.manufacturer_data is None
+            else bytes(
+                core.AdvertisingData(
+                    [
+                        (
+                            core.AdvertisingData.MANUFACTURER_SPECIFIC_DATA,
+                            struct.pack('<H', global_config.manufacturer_data[0])
+                            + global_config.manufacturer_data[1],
+                        )
+                    ]
+                )
+            )
+        )
             bigs[f'big{i}']['broadcast_audio_announcement'] = bap.BroadcastAudioAnnouncement(conf.broadcast_id)
             advertising_set = await device.create_advertising_set(
                 random_address=conf.broadcast_random_address,
@@ -192,6 +208,7 @@ async def run_broadcast(
                             [(core.AdvertisingData.BROADCAST_NAME, conf.broadcast_name.encode())]
                         )
                     )
+                    + advertising_manufacturer_data
                 ),
                 periodic_advertising_parameters=bumble.device.PeriodicAdvertisingParameters(
                     periodic_advertising_interval_min=round(80*ADVERTISING_SLOWDOWN_FACTOR),
@@ -331,3 +348,10 @@ if __name__ == "__main__":
         global_conf,
         bigs
         )
+
+    # TODO: possible inputs:
+    # wav file locally
+    # precoded lc3 file locally
+    # realtime audio locally
+    # realtime audio network lc3 coded
+    # (realtime audio network uncoded)