fix a typo

auracast/multicast.py

@@ -50,6 +50,49 @@ from bumble.audio import io as audio_io
 import auracast_config
 
 
+# modified from bumble
+class ModWaveAudioInput(audio_io.ThreadedAudioInput):
+    """Audio input that reads PCM samples from a .wav file."""
+
+    def __init__(self, filename: str) -> None:
+        super().__init__()
+        self._filename = filename
+        self._wav: wave.Wave_read | None = None
+        self._bytes_read = 0
+        self.rewind=True
+
+    def _open(self) -> audio_io.PcmFormat:
+        self._wav = wave.open(self._filename, 'rb')
+        if self._wav.getsampwidth() != 2:
+            raise ValueError('sample width not supported')
+        return audio_io.PcmFormat(
+            audio_io.PcmFormat.Endianness.LITTLE,
+            audio_io.PcmFormat.SampleType.INT16,
+            self._wav.getframerate(),
+            self._wav.getnchannels(),
+        )
+
+    def _read(self, frame_size: int) -> bytes:
+        if not self._wav:
+            return b''
+
+        pcm_samples = self._wav.readframes(frame_size)
+        if not pcm_samples and self._bytes_read:
+            if not self.rewind:
+                return None
+            # Loop around.
+            self._wav.rewind()
+            self._bytes_read = 0
+            pcm_samples = self._wav.readframes(frame_size)
+
+        self._bytes_read += len(pcm_samples)
+        return pcm_samples
+
+    def _close(self) -> None:
+        if self._wav:
+            self._wav.close()
+
+audio_io.WaveAudioInput = ModWaveAudioInput
 
 # -----------------------------------------------------------------------------
 # Logging

auracast/multicast_control.py

@@ -12,9 +12,15 @@ import multicast
 import auracast_config
 
 class Multicaster:
+    """
+    A class responsible for managing the multicasting and audio streaming process.
+
+    It provides methods to initialize and shutdown the broadcasting, as well as start and stop the streaming.
+    The class also manages the underlying device and advertising sets.
+    """
     def __init__(
-            self, 
-            global_conf: auracast_config.AuracastGlobalConfig, 
+            self,
+            global_conf: auracast_config.AuracastGlobalConfig,
             big_conf: List[auracast_config.AuracastBigConfig]
             ):
         self.is_auracast_init = False
@@ -61,9 +67,14 @@ class Multicaster:
         self.__init__(self.global_conf, self.big_conf)
 
     async def shutdown(self):
-        await self.device.stop_advertising()
-        for big in self.bigs.values():
-            await big['advertising_set'].stop()
+        self.is_auracast_init = False
+        self. is_audio_init = False
+        if self.device:
+            await self.device.stop_advertising()
+        if self.bigs:
+            for big in self.bigs.values():
+                if big['advertising_set']:
+                    await big['advertising_set'].stop()
 
         await self.device_acm.__aexit__(None, None, None)  # Manually triggering teardown
 
@@ -71,7 +82,7 @@ class Multicaster:
 # example commandline ui
 async def command_line_ui(caster: Multicaster):
     while True:
-        command = await aioconsole.ainput("\nCommands: [start|stop|init|quit] > ")
+        command = await aioconsole.ainput("\nCommands: [start_audio|stop_audio|stop|init|init_audio|quit] > ")
         
         if command.strip().lower() == "start_audio":
             caster.start_streaming()
@@ -94,11 +105,6 @@ async def command_line_ui(caster: Multicaster):
         elif command.strip().lower() == "init_audio":
             await caster.init_audio() 
 
-        #elif command.strip().lower().startswith("set "):
-            #_, new_message = command.split(" ", 1)
-            #multicaster.set_message(new_message)
-            #print(f"✏️ Message updated to: {new_message}")
-
         elif command.strip().lower() == "quit":
             print("👋 Exiting...")
             if caster.device: