Add getting default input or output device for portaudio.

src/native/portaudio/net_java_sip_communicator_impl_media_protocol_portaudio_PortAudio.c

@@ -35,6 +35,20 @@ static void PortAudioStream_free(JNIEnv *env, PortAudioStream *stream);
 static PortAudioStream * PortAudioStream_new(
 	JNIEnv *env, jobject streamCallback);
 
+JNIEXPORT jint JNICALL
+Java_net_java_sip_communicator_impl_media_protocol_portaudio_PortAudio_Pa_1GetDefaultInputDevice
+  (JNIEnv *env, jclass clazz)
+{
+    return Pa_GetDefaultInputDevice();
+}
+
+JNIEXPORT jint JNICALL
+Java_net_java_sip_communicator_impl_media_protocol_portaudio_PortAudio_Pa_1GetDefaultOutputDevice
+  (JNIEnv *env, jclass clazz)
+{
+    return Pa_GetDefaultOutputDevice();
+}
+
 JNIEXPORT void JNICALL
 Java_net_java_sip_communicator_impl_media_protocol_portaudio_PortAudio_Pa_1CloseStream(
 	JNIEnv *env, jclass clazz, jlong stream)

src/native/portaudio/net_java_sip_communicator_impl_media_protocol_portaudio_PortAudio.h

@@ -7,6 +7,22 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
+/*
+ * Class:     net_java_sip_communicator_impl_media_protocol_portaudio_PortAudio
+ * Method:    Pa_GetDefaultInputDevice
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL Java_net_java_sip_communicator_impl_media_protocol_portaudio_PortAudio_Pa_1GetDefaultInputDevice
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     net_java_sip_communicator_impl_media_protocol_portaudio_PortAudio
+ * Method:    Pa_GetDefaultOutputDevice
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL Java_net_java_sip_communicator_impl_media_protocol_portaudio_PortAudio_Pa_1GetDefaultOutputDevice
+  (JNIEnv *, jclass);
+
 /*
  * Class:     net_java_sip_communicator_impl_media_protocol_portaudio_PortAudio
  * Method:    Pa_CloseStream

src/net/java/sip/communicator/impl/media/protocol/portaudio/PortAudio.java

@@ -53,6 +53,22 @@ public static synchronized void initialize()
         }
     }
 
+    /**
+     * Retrieve the index of the default input device.
+     * @return The default input device index for the default host API,
+     *         or paNoDevice if no default input device is available or
+     *         an error was encountered.
+     */
+    public static native int Pa_GetDefaultInputDevice();
+
+    /**
+     * Retrieve the index of the default output device.
+     * @return The default input device index for the default host API,
+     *         or paNoDevice if no default input device is available or
+     *         an error was encountered.
+     */
+    public static native int Pa_GetDefaultOutputDevice();
+
     /**
      * Closes an audio stream. If the audio stream is active it discards
      * any pending buffers as if Pa_AbortStream() had been called.