🎉

precise_lite/runner.py

@@ -0,0 +1,80 @@
+import numpy as np
+from os.path import join
+from precise_lite_runner import PreciseRunner
+from precise_lite_runner.runner import ListenerEngine
+from prettyparse import Usage
+from random import randint
+from shutil import get_terminal_size
+from threading import Event
+
+from precise_lite.network_runner import Listener
+from precise_lite.scripts.base_script import BaseScript
+from precise_lite.util import save_audio, buffer_to_audio, activate_notify
+
+
+class ReadWriteStream:
+    """
+    Class used to support writing binary audio data at any pace,
+    optionally chopping when the buffer gets too large
+    """
+    def __init__(self, s=b'', chop_samples=-1):
+        self.buffer = s
+        self.write_event = Event()
+        self.chop_samples = chop_samples
+
+    def __len__(self):
+        return len(self.buffer)
+
+    def read(self, n=-1, timeout=None):
+        if n == -1:
+            n = len(self.buffer)
+        if 0 < self.chop_samples < len(self.buffer):
+            samples_left = len(self.buffer) % self.chop_samples
+            self.buffer = self.buffer[-samples_left:]
+        return_time = 1e10 if timeout is None else (
+                timeout + time.time()
+        )
+        while len(self.buffer) < n:
+            self.write_event.clear()
+            if not self.write_event.wait(return_time - time.time()):
+                return b''
+        chunk = self.buffer[:n]
+        self.buffer = self.buffer[n:]
+        return chunk
+
+    def write(self, s):
+        self.buffer += s
+        self.write_event.set()
+
+    def flush(self):
+        """Makes compatible with sys.stdout"""
+        pass
+
+
+class PreciseLiteListener:
+    def __init__(self, model, chunk_size, trigger_level, sensitivity,
+                 on_activation=None, on_prediction=None):
+        on_activation = on_activation or self.on_activation
+        on_prediction = on_prediction or self.on_prediction
+        self.listener = Listener(model, chunk_size)
+        self.audio_buffer = np.zeros(self.listener.pr.buffer_samples, dtype=float)
+        self.engine = ListenerEngine(self.listener, chunk_size)
+        self.engine.get_prediction = self.get_prediction
+        self.runner = PreciseRunner(self.engine, trigger_level,
+                                    sensitivity=sensitivity,
+                                    on_activation=on_activation,
+                                    on_prediction=on_prediction)
+
+    def on_activation(self):
+        print("     precise-lite activation!!!")
+
+    def on_prediction(self, conf):
+        pass
+
+    def get_prediction(self, chunk):
+        audio = buffer_to_audio(chunk)
+        self.audio_buffer = np.concatenate((self.audio_buffer[len(audio):], audio))
+        return self.listener.update(audio)
+
+    def start(self):
+        self.runner.start()

runner/precise_lite_runner/runner.py

@@ -232,7 +232,7 @@ class PreciseRunner(object):
     def _handle_predictions(self):
         """Continuously check Precise process output"""
         while self.running:
-            t0 = time.time()
+            #t0 = time.time()
             chunk = self.stream.read(self.chunk_size)
 
             if self.is_paused:
@@ -242,5 +242,5 @@ class PreciseRunner(object):
             self.on_prediction(prob)
             if self.detector.update(prob):
                 self.on_activation()
-            t1 = time.time()
-            print("Prediction time: %.4f" % ((t1-t0)))
+            #t1 = time.time()
+            #print("Prediction time: %.4f" % ((t1-t0)))