Create audio.py

Author: Edward Li

audio.py

@@ -0,0 +1,154 @@
+# =============================================================================
+# Module: audio.py
+# Contacts: Edward Li (drawdeil@gmail.com)
+# =============================================================================
+"""___DESC___
+
+"""
+
+# =============================================================================
+# IMPORTS
+# =============================================================================
+import subprocess
+
+# =============================================================================
+# CLASSES
+# =============================================================================
+class Audio(object):
+
+    # =========================================================================
+    def __init__(self):
+
+        self._devices = list()
+        self._device = Device()
+
+        args = 'pacmd list-sources'
+        popen = subprocess.Popen(args, shell=True,
+                stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+
+        device = Device()
+        for line in popen.stdout:
+            line = line.strip()
+
+            if line.startswith('name: '):
+                device.name = line.split(':', 1)[1].strip()
+
+            elif line.startswith('device.api = '):
+                device.api = line.split('=', 1)[1].strip().strip('"')
+
+            elif line.startswith('alsa.subdevice = '):
+                device.subdevice = line.split('=', 1)[1].strip().strip('"')
+
+            elif line.startswith('alsa.card = '):
+                device.card = line.split('=', 1)[1].strip().strip('"')
+
+            elif line.startswith('device.description = '):
+                device.description = line.split('=', 1)[1].strip().strip('"')
+
+                if device.name.startswith('<alsa_input.') and \
+                        device.api and device.subdevice and device.card and \
+                        device.description:
+
+                    if device not in self._devices:
+                        self._devices.append(device)
+
+                device = Device()
+
+    # =========================================================================
+    def deviceSet(self, index):
+
+        self._device = self.devices[index]
+
+    # =========================================================================
+    @property
+    def devices(self):
+
+        return self._devices
+
+    # =========================================================================
+    @property
+    def device(self):
+
+        return self._device
+
+# =============================================================================
+class Device(object):
+
+    # =========================================================================
+    def __init__(self, name=None, api=None, subdevice=None, card=None,
+            description=None):
+
+        self._name = name
+        self._api = api
+        self._subdevice = subdevice
+        self._card = card
+        self._description = description
+
+    # =========================================================================
+    @property
+    def source(self):
+
+        return 'plughw:{c},{s}'.format(c=self.card, s=self.subdevice)
+
+    # =========================================================================
+    @property
+    def name(self):
+
+        return self._name
+
+    # =========================================================================
+    @name.setter
+    def name(self, value):
+
+        self._name = value
+
+    # =========================================================================
+    @property
+    def api(self):
+
+        return self._api
+
+    # =========================================================================
+    @api.setter
+    def api(self, value):
+
+        self._api = value
+
+    # =========================================================================
+    @property
+    def subdevice(self):
+
+        return self._subdevice
+
+    # =========================================================================
+    @subdevice.setter
+    def subdevice(self, value):
+
+        self._subdevice = value
+
+    # =========================================================================
+    @property
+    def card(self):
+
+        return self._card
+
+    # =========================================================================
+    @card.setter
+    def card(self, value):
+
+        self._card = value
+
+    # =========================================================================
+    @property
+    def description(self):
+
+        return self._description
+
+    # =========================================================================
+    @description.setter
+    def description(self, value):
+
+        self._description = value
+
+# =============================================================================
+