Updated static interface

birbnetes_iot_platform_raspberry/led_stuff.py

@@ -93,3 +93,7 @@ class BirbnetesIoTPlatformStatusDriver:
     @classmethod
     def enqueue_pattern(cls, target: str, pattern: list):
         cls.blinken_lights.enqueue_pattern(target, pattern)
+
+    @classmethod
+    def cleanup(cls):
+        cls.blinken_lights.stop()

birbnetes_iot_platform_raspberry/playback_stuff.py

@@ -10,3 +10,7 @@ class BirbnetesIoTPlatformPlaybackDriver:
     @classmethod
     def play_audio(cls, audiofile: str):
         playsound(audiofile)
+
+    @classmethod
+    def cleanup(cls):
+        pass

birbnetes_iot_platform_raspberry/record_stuff.py

@@ -4,6 +4,7 @@ import tempfile
 from queue import Queue, Empty
 from threading import Thread
 import wave
+import os
 
 SAMPLE_RATE = 44100
 MICROPHONE = 'default'
@@ -11,8 +12,7 @@ DEST_FOLDER = "/dev/shm/"
 
 
 class SlicedRecorder(Thread):
-
+    BYTES_PER_SAMPLE = 2  # 16bit
-    BYTES_PER_SAMPLE = 2 # 16bit
 
     def __init__(self, slice_size: float, sample_rate=SAMPLE_RATE, microphone=MICROPHONE, dest_folder=DEST_FOLDER):
         super().__init__()
@@ -26,7 +26,7 @@ class SlicedRecorder(Thread):
             microphone,
             channels=1,
             rate=sample_rate,
-            format=alsaaudio.PCM_FORMAT_S16_LE, # = 2bytes
+            format=alsaaudio.PCM_FORMAT_S16_LE,  # = 2bytes
             periodsize=512
         )
         self._active = True
@@ -54,13 +54,13 @@ class SlicedRecorder(Thread):
 
                     samples_append_to_this_slice = self._samples_per_slice - current_samples_saved
 
-                    current_working_file.writeframes(data[:(samples_append_to_this_slice*self.BYTES_PER_SAMPLE)])
+                    current_working_file.writeframes(data[:(samples_append_to_this_slice * self.BYTES_PER_SAMPLE)])
 
                     current_working_file.close()
                     self._output_queue.put(current_working_file_name)
                     current_working_file_name, current_working_file = self._request_new_file()
 
-                    current_working_file.writeframes(data[(samples_append_to_this_slice*self.BYTES_PER_SAMPLE):])
+                    current_working_file.writeframes(data[(samples_append_to_this_slice * self.BYTES_PER_SAMPLE):])
                     current_samples_saved = length - samples_append_to_this_slice
 
                 else:  # it is safe to append, the resulting file will be smaller than the slice
@@ -78,11 +78,24 @@ class SlicedRecorder(Thread):
 
 
 class BirbnetesIoTPlatformRecordDriver:
+    sliced_recorder = None
 
     @classmethod
-    def init(cls, sample_length_sec: float):
+    def init(cls, sample_length_sec: float, sample_rate=SAMPLE_RATE, microphone=MICROPHONE, dest_folder=DEST_FOLDER):
-        pass
+        cls.sliced_recorder = SlicedRecorder(sample_length_sec, sample_rate, microphone, dest_folder)
+        cls.sliced_recorder.start()
 
     @classmethod
-    def get_recording(cls, blocking: bool = False):
+    def get_recording(cls, blocking: bool = False) -> Optional[str]:
-        pass
+        return cls.sliced_recorder.get_recording(blocking)
+
+    @classmethod
+    def cleanup(cls):
+        cls.sliced_recorder.stop()
+
+        while True:
+            fname = cls.sliced_recorder.get_recording(False)
+            if fname:
+                os.unlink(fname)
+            else:
+                break