Add new configurations parameters

1 files changed, 19 insertions, 8 deletions

diff --git a/helpers/mixer.py b/helpers/mixer.py
index 9e8179a..d08520a 100644
--- a/helpers/mixer.py
+++ b/helpers/mixer.py
@@ -2,17 +2,28 @@ import sounddevice as sd
 import audioop
 import time
 
-frame_rate   = 44100
-channels     = 2
-sample_width = 2
+from . import Config
+
+sample_width = Config.sample_width
+def sample_width_to_dtype(sample_width):
+    if sample_width == 1 or sample_width == 2 or sample_width == 4:
+        return 'int' + str(8*sample_width)
+    else:
+        raise "Unknown sample width"
+
+def _latency(latency):
+    if latency == "high" or latency == "low":
+        return latency
+    else:
+        return float(latency)
 
 class Mixer:
     def __init__(self):
-        self.stream = sd.RawOutputStream(samplerate=frame_rate,
-                        channels=channels,
-                        dtype='int' + str(8*sample_width), # FIXME: ?
-                        latency="high",
-                        blocksize=5000,
+        self.stream = sd.RawOutputStream(samplerate=Config.frame_rate,
+                        channels=Config.channels,
+                        dtype=sample_width_to_dtype(Config.sample_width),
+                        latency=_latency(Config.latency),
+                        blocksize=Config.blocksize,
                         callback=self.play_callback,
                         )
         self.open_files = []