denon_get_audio_format

Author: mshameersm

framework/core/audioAmplifier/base.py

@@ -105,3 +105,12 @@ def get_status(self) -> dict:
         :return: Dictionary of current amplifier state.
         """
         pass
+
+    @abstractmethod
+    def get_audio_format(self) -> dict:
+        """
+        Get a string of audio format information.
+
+        :return: String of audio format like Dolby Atmos or PCM
+        """
+        pass

framework/core/audioAmplifier/denon_controller.py

@@ -1,11 +1,15 @@
 import asyncio
+
+import requests
+from defusedxml.cElementTree import fromstring
 from denonavr import DenonAVR
 from .base import AudioAmplifier
 
 class DenonAVRController(AudioAmplifier):
 
     def __init__(self, host: str):
         self.receiver = DenonAVR(host)
+        self.url = f"https://{host}:10443/"
         self.setup()
 
     def setup(self):
@@ -76,3 +80,17 @@ def get_status(self):
             "input": self.get_input(),
             "sound_mode": self.get_sound_mode(),
         }
+
+    def get_audio_format(self):
+        response = requests.get(f'{self.url}ajax/general/get_config?type=12', verify=False)
+        if response.status_code == 200:
+            try:
+                xml_data = fromstring(response.content)
+
+                for element in xml_data.findall(".//InputSignal"):
+                    return element.text
+            except Exception as e:
+                print(e)
+                raise ValueError("Failed to parse Audio format XML. Status code")
+        else:
+            raise ValueError(f"Failed to fetch Audio format. Status code: {response.status_code}")

framework/core/audioAmplifierController.py

@@ -96,3 +96,7 @@ def get_sound_mode(self) -> str:
     def get_status(self):
         self._log.info("Getting audio amplifier status")
         return self.audioAmplifier.get_status()
+
+    def get_audio_format(self):
+        self._log.info("Getting audio format")
+        return self.audioAmplifier.get_audio_format()

tests/audioAmp_test.py

@@ -84,6 +84,14 @@
         except:
             print(f"FAILED: Sound mode not set correctly. Expected: {sound_mode}, actual: {updated_sound_mode}")
 
+        # Audio format test
+        try:
+            audio_format = controller.get_audio_format()
+            assert audio_format == "Unknown" # when nothing plays
+            print(f"PASSED: Audio format: {audio_format}")
+        except:
+            print(f"FAILED: Audio format: {audio_format}")
+
         # Power OFF test
         try:
             controller.power_off()