pybravia-connect 0.1.0a3

HA-agnostic Sony BRAVIA Connect ControlDeviceService client

pybravia-connect

HA-agnostic Python client for Sony BRAVIA Connect local gRPC (ControlDeviceService).

This is a protocol library, not a Home Assistant integration. Integrations that speak BRAVIA Connect (for example bravia-quad-homeassistant and bravia-tv-grpc-homeassistant) can depend on this package once cut over.

Protocol code was extracted from those integrations (MIT). Thanks to @steamEngineer and @braviafanboy.

Status

0.1.0a3 — connect/handshake, StartNotifyStates, GetCapabilities, get_states, ExecCommandWithAuth (fresh GetSessionRandom per write), and nonce-gated TV read_application_list / read_resource (AES-GCM; needs session_key + [crypto]).

Install

pip install pybravia-connect==0.1.0a3

For local development:

pip install -e ".[dev]"

For TV app-list and icon reads (AES-GCM decrypt):

pip install "pybravia-connect[crypto]"

Public API (sketch)

from pybravia_connect import (
    BraviaConnectClient,
    DEFAULT_THEATRE_PORT,
    async_complete_oauth_flow,
    start_oauth_login,
    select_device,
    discover_grpc_port,
)

Sync gRPC client (run in an executor from asyncio). Async credentials use aiohttp.ClientSession.

Live smoke

export BRAVIA_HOST=192.168.x.x
export BRAVIA_PORT=55051          # Theatre default; TVs may need discovery
export BRAVIA_CREDENTIALS=/path/to/keys.json
python tools/live_smoke.py

Validated on HT-A9M2: connect/handshake, GetCapabilities, StartNotifyStates, get_states, and volume writes via exec_command while powered on. Volume/mute writes are no-ops when the control unit is off — live smoke wakes power first. Stop any Home Assistant bravia_quad session on the same device before smoke (dual key_id sessions flake).

Regenerating protobuf stubs

python -m grpc_tools.protoc -Isrc/pybravia_connect/proto \
  --python_out=src/pybravia_connect/proto \
  --grpc_python_out=src/pybravia_connect/proto \
  src/pybravia_connect/proto/bravia_control.proto

Then re-apply two manual patches:

1. Make the pb2_grpc import relative: from . import bravia_control_pb2.
2. Register the descriptor in a private pool, not the global Default() one (_pool = DescriptorPool() / DESCRIPTOR = _pool.AddSerializedFile(...)). This avoids symbol collisions when co-installed with integrations that still vendor their own stubs.

Development

python3 -m venv .venv && source .venv/bin/activate
pip install -e ".[dev]"
ruff check . && ruff format --check .
pytest -q