feat: persist program info and gain settings, add known issues to README

README.md

@@ -87,3 +87,7 @@ Once your device is configured, you can verify that its mDNS advertisement is vi
 - poetry run multicast_server.py
 - sudo -E PATH="$PATH" bash ./start_frontend_https.sh
 - bash start_mdns.sh
+
+
+# Known issues:
+- When running on a laptop there might be issues switching between usb and browser audio input since they use the same audio device

src/auracast/server/multicast_frontend.py

@@ -37,7 +37,6 @@ audio_mode = st.selectbox(
     help="Select the audio input source. Choose 'Webapp' for browser microphone or 'USB' for a connected hardware device."
 )
 
-
 if audio_mode in ["Webapp", "USB"]:
     # Stream quality selection (temporarily disabled)
     # quality = st.selectbox("Stream Quality", ["High (48kHz)", "Mid (24kHz)", "Fair (16kHz)"])
@@ -56,9 +55,14 @@ if audio_mode in ["Webapp", "USB"]:
         value=default_name,
         help="The primary name for your broadcast. Like the SSID of a WLAN, it identifies your stream for receivers."
     )
+    raw_program_info = saved_settings.get('program_info', default_name)
+    if isinstance(raw_program_info, list) and raw_program_info:
+        default_program_info = raw_program_info[0]
+    else:
+        default_program_info = raw_program_info
     program_info = st.text_input(
         "Program Info",
-        value=default_name,
+        value=default_program_info,
         help="Additional details about the broadcast program, such as its content or purpose. Shown to receivers for more context."
     )
     language = st.text_input(
@@ -109,6 +113,7 @@ if audio_mode in ["Webapp", "USB"]:
             input_device = selected_option.split(":", 1)[0] if ":" in selected_option else selected_option
     else:
         input_device = None
+    import time
     start_stream = st.button("Start Auracast")
     stop_stream = st.button("Stop Auracast")
 
@@ -177,6 +182,7 @@ if audio_mode in ["Webapp", "USB"]:
                 ),
             ]
     )
+
         try:
             r = requests.post(f"{BACKEND_URL}/init", json=config.model_dump())
             if r.status_code == 200:

src/auracast/server/multicast_server.py

@@ -88,11 +88,10 @@ async def initialize(conf: auracast_config.AuracastConfigGroup):
 
         # initialize the streams dict
         # persist stream settings for later retrieval
-        # Derive audio_mode from first BIG audio_source
+        # Derive audio_mode and input_device from first BIG audio_source
         first_source = conf.bigs[0].audio_source if conf.bigs else ''
         if first_source.startswith('device:'):
             audio_mode_persist = 'USB'
-
             input_device = first_source.split(':', 1)[1] if ':' in first_source else 'default'
         elif first_source == 'webrtc':
             audio_mode_persist = 'Webapp'
@@ -100,11 +99,14 @@ async def initialize(conf: auracast_config.AuracastConfigGroup):
         else:
             audio_mode_persist = 'Network'
             input_device = None
+        # Always persist all relevant stream settings
         save_stream_settings({
             'channel_names': [big.name for big in conf.bigs],
             'languages': [big.language for big in conf.bigs],
             'audio_mode': audio_mode_persist,
             'input_device': input_device,
+            'program_info': [getattr(big, 'program_info', None) for big in conf.bigs],
+            'gain': [getattr(big, 'input_gain', 1.0) for big in conf.bigs],
             'timestamp': datetime.utcnow().isoformat()
         })
         global_config_group = conf