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Gilles Boccon-Gibod
2025-02-03 17:58:09 -05:00
parent 55d3fd90f5
commit 70141c0439
22 changed files with 495 additions and 649 deletions
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64
bumble/profiles/pacs.py
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@@ -72,6 +72,19 @@ class PacRecord:
metadata=metadata,
)
@classmethod
def list_from_bytes(cls, data: bytes) -> list[PacRecord]:
"""Parse a serialized list of records preceded by a one byte list length."""
record_count = data[0]
records = []
offset = 1
for _ in range(record_count):
record = PacRecord.from_bytes(data[offset:])
offset += len(bytes(record))
records.append(record)
return records
def __bytes__(self) -> bytes:
capabilities_bytes = bytes(self.codec_specific_capabilities)
metadata_bytes = bytes(self.metadata)
@@ -172,39 +185,58 @@ class PublishedAudioCapabilitiesService(gatt.TemplateService):
class PublishedAudioCapabilitiesServiceProxy(gatt_client.ProfileServiceProxy):
SERVICE_CLASS = PublishedAudioCapabilitiesService
sink_pac: Optional[gatt_client.CharacteristicProxy] = None
sink_audio_locations: Optional[gatt_client.CharacteristicProxy] = None
source_pac: Optional[gatt_client.CharacteristicProxy] = None
source_audio_locations: Optional[gatt_client.CharacteristicProxy] = None
available_audio_contexts: gatt_client.CharacteristicProxy
supported_audio_contexts: gatt_client.CharacteristicProxy
sink_pac: Optional[gatt.DelegatedCharacteristicAdapter] = None
sink_audio_locations: Optional[gatt.DelegatedCharacteristicAdapter] = None
source_pac: Optional[gatt.DelegatedCharacteristicAdapter] = None
source_audio_locations: Optional[gatt.DelegatedCharacteristicAdapter] = None
available_audio_contexts: gatt.DelegatedCharacteristicAdapter
supported_audio_contexts: gatt.DelegatedCharacteristicAdapter
def __init__(self, service_proxy: gatt_client.ServiceProxy):
self.service_proxy = service_proxy
self.available_audio_contexts = service_proxy.get_characteristics_by_uuid(
gatt.GATT_AVAILABLE_AUDIO_CONTEXTS_CHARACTERISTIC
)[0]
self.supported_audio_contexts = service_proxy.get_characteristics_by_uuid(
gatt.GATT_SUPPORTED_AUDIO_CONTEXTS_CHARACTERISTIC
)[0]
self.available_audio_contexts = gatt.DelegatedCharacteristicAdapter(
service_proxy.get_required_characteristic_by_uuid(
gatt.GATT_AVAILABLE_AUDIO_CONTEXTS_CHARACTERISTIC
),
decode=lambda x: tuple(map(ContextType, struct.unpack('<HH', x))),
)
self.supported_audio_contexts = gatt.DelegatedCharacteristicAdapter(
service_proxy.get_required_characteristic_by_uuid(
gatt.GATT_SUPPORTED_AUDIO_CONTEXTS_CHARACTERISTIC
),
decode=lambda x: tuple(map(ContextType, struct.unpack('<HH', x))),
)
if characteristics := service_proxy.get_characteristics_by_uuid(
gatt.GATT_SINK_PAC_CHARACTERISTIC
):
self.sink_pac = characteristics[0]
self.sink_pac = gatt.DelegatedCharacteristicAdapter(
characteristics[0],
decode=PacRecord.list_from_bytes,
)
if characteristics := service_proxy.get_characteristics_by_uuid(
gatt.GATT_SOURCE_PAC_CHARACTERISTIC
):
self.source_pac = characteristics[0]
self.source_pac = gatt.DelegatedCharacteristicAdapter(
characteristics[0],
decode=PacRecord.list_from_bytes,
)
if characteristics := service_proxy.get_characteristics_by_uuid(
gatt.GATT_SINK_AUDIO_LOCATION_CHARACTERISTIC
):
self.sink_audio_locations = characteristics[0]
self.sink_audio_locations = gatt.DelegatedCharacteristicAdapter(
characteristics[0],
decode=lambda x: AudioLocation(struct.unpack('<I', x)[0]),
)
if characteristics := service_proxy.get_characteristics_by_uuid(
gatt.GATT_SOURCE_AUDIO_LOCATION_CHARACTERISTIC
):
self.source_audio_locations = characteristics[0]
self.source_audio_locations = gatt.DelegatedCharacteristicAdapter(
characteristics[0],
decode=lambda x: AudioLocation(struct.unpack('<I', x)[0]),
)