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"""OBS stream-deck: recording, scenes, audio channels, transitions and sources."""
import json
import threading
from pathlib import Path
from ..module import Module, ModuleError
from ..obsclient import ObsClient
OBS_CONFIG = Path.home() / ".config" / "obs-studio" / "plugin_config" / "obs-websocket" / "config.json"
def _obs_password(path=OBS_CONFIG) -> str:
"""OBS stores its websocket password in plain text here."""
try:
return json.loads(Path(path).read_text()).get("server_password") or ""
except (OSError, ValueError):
return ""
AUDIO_KINDS = {
"pulse_input_capture", "pulse_output_capture", "alsa_input_capture", "alsa_output_capture",
"wasapi_input_capture", "wasapi_output_capture", "coreaudio_input_capture", "coreaudio_output_capture",
"sndio_input_capture", "sndio_output_capture", "jack_input_capture", "jack_output_capture",
}
def make(cfg: dict) -> Module:
o = cfg.get("obs", {})
client = cfg.get("client") or ObsClient(
host=o.get("host", "127.0.0.1"), port=o.get("port", 4455),
password=o.get("password") or _obs_password())
lock = threading.Lock()
stop = threading.Event()
last_error = {"msg": None}
def req(kind, data=None):
with lock:
return client.request(kind, data)
def connect_loop():
while not stop.is_set():
if not getattr(client, "connected", False):
try:
client.connect()
last_error["msg"] = None
except Exception as e:
last_error["msg"] = str(e) or type(e).__name__
stop.wait(5)
def state():
if not getattr(client, "connected", False):
return {"connected": False, "error": last_error["msg"]}
try:
scenes = req("GetSceneList")
rec = req("GetRecordStatus")
stream = req("GetStreamStatus")
trans = req("GetCurrentSceneTransition")
kinds = req("GetTransitionKindList").get("transitionKinds", [])
current = scenes.get("currentProgramSceneName")
sources = []
if current:
for item in req("GetSceneItemList", {"sceneName": current}).get("sceneItems", []):
sources.append({"id": item["sceneItemId"], "name": item["sourceName"],
"on": item["sceneItemEnabled"]})
inputs = []
for inp in req("GetInputList").get("inputs", []):
if inp.get("inputKind") not in AUDIO_KINDS:
continue
try:
vol = req("GetInputVolume", {"inputName": inp["inputName"]})
muted = req("GetInputMute", {"inputName": inp["inputName"]})
except ModuleError:
continue
inputs.append({"name": inp["inputName"],
"volume": vol.get("inputVolumeMul", 0),
"muted": muted.get("inputMuted", False)})
except ModuleError:
return {"connected": False}
return {
"connected": True,
"scenes": [s["sceneName"] for s in scenes.get("scenes", [])],
"currentScene": current,
"recording": rec.get("outputActive", False),
"recordingTime": rec.get("outputDuration", 0) / 1000,
"streaming": stream.get("outputActive", False),
"transitions": kinds,
"transition": trans.get("transitionName"),
"sources": sources,
"inputs": inputs,
}
def scene(body):
name = body.get("scene")
if not isinstance(name, str) or not name:
raise ModuleError("scene required")
req("SetCurrentProgramScene", {"sceneName": name})
def flag(body):
on = body.get("on")
if not isinstance(on, bool):
raise ModuleError('"on" must be true or false')
return on
def record(body):
req("StartRecord" if flag(body) else "StopRecord")
def stream(body):
req("StartStream" if flag(body) else "StopStream")
def mute(body):
req("SetInputMute", {"inputName": str(body.get("input")), "inputMuted": bool(body.get("muted"))})
def volume(body):
req("SetInputVolume", {"inputName": str(body.get("input")),
"inputVolumeMul": float(body.get("level", 0))})
def transition(body):
req("SetCurrentSceneTransition", {"transitionName": str(body.get("name"))})
def trigger(body):
req("TriggerStudioModeTransition")
def source(body):
req("SetSceneItemEnabled", {"sceneName": str(body.get("scene")),
"sceneItemId": int(body.get("id")),
"sceneItemEnabled": bool(body.get("on"))})
def properties(body):
name = str(body.get("source") or "")
if not name:
raise ModuleError("source required")
req("OpenInputPropertiesDialog", {"inputName": name})
return Module(
name="obs", title="OBS", state=state,
actions={"scene": scene, "record": record, "stream": stream, "mute": mute,
"volume": volume, "transition": transition, "trigger": trigger,
"source": source, "properties": properties},
start=lambda: threading.Thread(target=connect_loop, daemon=True).start(),
stop=lambda: (stop.set(), client.close()),
)
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