add .env support

.gitignore

@@ -41,3 +41,4 @@ wg_config/wg_confs/
 records/
 src/auracast/server/stream_settings.json
 src/auracast/server/certs/per_device/
+src/auracast/.env

poetry.lock

@@ -2235,6 +2235,21 @@ files = [
 [package.dependencies]
 six = ">=1.5"
 
+[[package]]
+name = "python-dotenv"
+version = "1.1.1"
+description = "Read key-value pairs from a .env file and set them as environment variables"
+optional = false
+python-versions = ">=3.9"
+groups = ["main"]
+files = [
+    {file = "python_dotenv-1.1.1-py3-none-any.whl", hash = "sha256:31f23644fe2602f88ff55e1f5c79ba497e01224ee7737937930c448e4d0e24dc"},
+    {file = "python_dotenv-1.1.1.tar.gz", hash = "sha256:a8a6399716257f45be6a007360200409fce5cda2661e3dec71d23dc15f6189ab"},
+]
+
+[package.extras]
+cli = ["click (>=5.0)"]
+
 [[package]]
 name = "pytz"
 version = "2025.2"
@@ -2919,4 +2934,4 @@ test = ["pytest", "pytest-asyncio"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.11"
-content-hash = "ee5d8e347947d5b3651aa1b9bcfb8b952e706d0a4a7d28bc0a9d3e5526d82c16"
+content-hash = "723981c612b424756f0338604c35c9cef37fd44ffd208e15c7865b1f5e83bc05"

pyproject.toml

@@ -14,7 +14,8 @@ dependencies = [
     "numpy (>=2.2.6,<3.0.0)",
     "streamlit (>=1.45.1,<2.0.0)",
     "aiortc (>=1.13.0,<2.0.0)",
-    "sounddevice (>=0.5.2,<0.6.0)"
+    "sounddevice (>=0.5.2,<0.6.0)",
+    "python-dotenv (>=1.1.1,<2.0.0)"
 ]
 
 [project.optional-dependencies]

src/auracast/multicast_script.py

@@ -1,5 +1,6 @@
 import logging
 import os
+from dotenv import load_dotenv
 from auracast import multicast
 from auracast import auracast_config
 from auracast.utils.sounddevice_utils import list_usb_pw_inputs, list_network_pw_inputs
@@ -12,6 +13,8 @@ if __name__ == "__main__":
         format='%(module)s.py:%(lineno)d %(levelname)s: %(message)s'
     )
     os.chdir(os.path.dirname(__file__))
+    # Load .env located next to this script (only uppercase keys will be referenced)
+    load_dotenv(dotenv_path='.env')
     
     # Minimal setting to request PipeWire quantum ~128 at 48 kHz via PortAudio
     os.environ.setdefault("AURACAST_SD_BLOCKSIZE", "128")
@@ -28,7 +31,18 @@ if __name__ == "__main__":
     for i, d in aes67_inputs:
         logging.info(f"{i}: {d['name']}  in={d['max_input_channels']}")
     
-    input_sel = usb_inputs[0][0]
+    # Input selection (usb | network). Default to usb.
+    input_mode = (os.environ.get('INPUT', 'usb') or 'usb').lower()
+    if input_mode == 'network':
+        if aes67_inputs:
+            input_sel = aes67_inputs[0][0]
+        else:
+            raise RuntimeError("No audio inputs found (USB or network).")
+    else:
+        if usb_inputs:
+            input_sel = usb_inputs[0][0]
+        else:
+            raise RuntimeError("No audio inputs found (USB or network).")
 
     TRANSPORT1 = 'serial:/dev/ttyAMA3,1000000,rtscts' # transport for raspberry pi gpio header
     TRANSPORT2 = 'serial:/dev/ttyAMA4,1000000,rtscts' # transport for raspberry pi gpio header
@@ -43,9 +57,18 @@ if __name__ == "__main__":
     except Exception:
         pass
 
+    # Read uppercase-only settings from environment/.env
+    broadcast_name = os.environ.get('BROADCAST_NAME', 'Broadcast0')
+    program_info = os.environ.get('PROGRAM_INFO', 'Some Announcements')
+    # Note: 'LANGUATE' (typo) is intentionally used as requested, maps to config.language
+    language = os.environ.get('LANGUATE', 'deu')
+
     config = auracast_config.AuracastConfigGroup(
         bigs = [
             auracast_config.AuracastBigConfig(
+                name=broadcast_name,
+                program_info=program_info,
+                language=language,
                 iso_que_len=1,
                 audio_source=f'device:{input_sel}',
                 input_format=f"int16le,{CAPTURE_SRATE},1",