Fix unused parameter warnings in audio

Change-Id: I665ba3358dd9502f0adec70d486e7bf8a2e1b0fe
diff --git a/media/libmedia/AudioEffect.cpp b/media/libmedia/AudioEffect.cpp
index 8dfffb3..35f6557 100644
--- a/media/libmedia/AudioEffect.cpp
+++ b/media/libmedia/AudioEffect.cpp
@@ -380,9 +380,9 @@
 }
 
 void AudioEffect::commandExecuted(uint32_t cmdCode,
-                                  uint32_t cmdSize,
+                                  uint32_t cmdSize __unused,
                                   void *cmdData,
-                                  uint32_t replySize,
+                                  uint32_t replySize __unused,
                                   void *replyData)
 {
     if (cmdData == NULL || replyData == NULL) {
diff --git a/media/libmedia/AudioRecord.cpp b/media/libmedia/AudioRecord.cpp
index b69e3ae..286096e 100644
--- a/media/libmedia/AudioRecord.cpp
+++ b/media/libmedia/AudioRecord.cpp
@@ -87,7 +87,7 @@
         int notificationFrames,
         int sessionId,
         transfer_type transferType,
-        audio_input_flags_t flags)
+        audio_input_flags_t flags __unused)
     : mStatus(NO_INIT), mSessionId(AUDIO_SESSION_ALLOCATE),
       mPreviousPriority(ANDROID_PRIORITY_NORMAL),
       mPreviousSchedulingGroup(SP_DEFAULT),
diff --git a/media/libmedia/AudioSystem.cpp b/media/libmedia/AudioSystem.cpp
index dcb72f8..1ab94fa 100644
--- a/media/libmedia/AudioSystem.cpp
+++ b/media/libmedia/AudioSystem.cpp
@@ -333,7 +333,7 @@
 }
 
 status_t AudioSystem::getLatency(audio_io_handle_t output,
-                                 audio_stream_type_t streamType,
+                                 audio_stream_type_t streamType __unused,
                                  uint32_t* latency)
 {
     OutputDescriptor *outputDesc;
diff --git a/media/libnbaio/PipeReader.cpp b/media/libnbaio/PipeReader.cpp
index d786b84..24da1bd 100644
--- a/media/libnbaio/PipeReader.cpp
+++ b/media/libnbaio/PipeReader.cpp
@@ -59,7 +59,7 @@
     return avail;
 }
 
-ssize_t PipeReader::read(void *buffer, size_t count, int64_t readPTS)
+ssize_t PipeReader::read(void *buffer, size_t count, int64_t readPTS __unused)
 {
     ssize_t avail = availableToRead();
     if (CC_UNLIKELY(avail <= 0)) {
diff --git a/media/mediaserver/main_mediaserver.cpp b/media/mediaserver/main_mediaserver.cpp
index d5207d5..a347951 100644
--- a/media/mediaserver/main_mediaserver.cpp
+++ b/media/mediaserver/main_mediaserver.cpp
@@ -37,7 +37,7 @@
 
 using namespace android;
 
-int main(int argc, char** argv)
+int main(int argc __unused, char** argv)
 {
     signal(SIGPIPE, SIG_IGN);
     char value[PROPERTY_VALUE_MAX];