Use audio_channel_mask_t more places

Use it in AudioSystem::getOutput(), AudioSystem::getInput(),
IAudioPolicyService::getOutput(), IAudioPolicyService::getInput(),
and various other places in AudioFlinger.

Not done: AudioTrack and OutputDescriptor.

Change-Id: I70e83455820bd8f05dafd30c63d636c6a47cd172
diff --git a/media/libmedia/AudioSystem.cpp b/media/libmedia/AudioSystem.cpp
index 9c270c8..d880989 100644
--- a/media/libmedia/AudioSystem.cpp
+++ b/media/libmedia/AudioSystem.cpp
@@ -449,7 +449,7 @@
 
         OutputDescriptor *outputDesc =  new OutputDescriptor(*desc);
         gOutputs.add(ioHandle, outputDesc);
-        ALOGV("ioConfigChanged() new output samplingRate %d, format %d channels %d frameCount %d latency %d",
+        ALOGV("ioConfigChanged() new output samplingRate %d, format %d channels %#x frameCount %d latency %d",
                 outputDesc->samplingRate, outputDesc->format, outputDesc->channels, outputDesc->frameCount, outputDesc->latency);
         } break;
     case OUTPUT_CLOSED: {
@@ -471,7 +471,7 @@
         if (param2 == NULL) break;
         desc = (const OutputDescriptor *)param2;
 
-        ALOGV("ioConfigChanged() new config for output %d samplingRate %d, format %d channels %d frameCount %d latency %d",
+        ALOGV("ioConfigChanged() new config for output %d samplingRate %d, format %d channels %#x frameCount %d latency %d",
                 ioHandle, desc->samplingRate, desc->format,
                 desc->channels, desc->frameCount, desc->latency);
         OutputDescriptor *outputDesc = gOutputs.valueAt(index);
@@ -588,12 +588,12 @@
 audio_io_handle_t AudioSystem::getOutput(audio_stream_type_t stream,
                                     uint32_t samplingRate,
                                     audio_format_t format,
-                                    uint32_t channels,
+                                    audio_channel_mask_t channelMask,
                                     audio_output_flags_t flags)
 {
     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
     if (aps == 0) return 0;
-    return aps->getOutput(stream, samplingRate, format, channels, flags);
+    return aps->getOutput(stream, samplingRate, format, channelMask, flags);
 }
 
 status_t AudioSystem::startOutput(audio_io_handle_t output,
@@ -624,12 +624,12 @@
 audio_io_handle_t AudioSystem::getInput(audio_source_t inputSource,
                                     uint32_t samplingRate,
                                     audio_format_t format,
-                                    uint32_t channels,
+                                    audio_channel_mask_t channelMask,
                                     int sessionId)
 {
     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
     if (aps == 0) return 0;
-    return aps->getInput(inputSource, samplingRate, format, channels, sessionId);
+    return aps->getInput(inputSource, samplingRate, format, channelMask, sessionId);
 }
 
 status_t AudioSystem::startInput(audio_io_handle_t input)
diff --git a/media/libmedia/IAudioPolicyService.cpp b/media/libmedia/IAudioPolicyService.cpp
index 5a4512e..f0c0f2e 100644
--- a/media/libmedia/IAudioPolicyService.cpp
+++ b/media/libmedia/IAudioPolicyService.cpp
@@ -123,7 +123,7 @@
                                         audio_stream_type_t stream,
                                         uint32_t samplingRate,
                                         audio_format_t format,
-                                        uint32_t channels,
+                                        audio_channel_mask_t channelMask,
                                         audio_output_flags_t flags)
     {
         Parcel data, reply;
@@ -131,7 +131,7 @@
         data.writeInt32(static_cast <uint32_t>(stream));
         data.writeInt32(samplingRate);
         data.writeInt32(static_cast <uint32_t>(format));
-        data.writeInt32(channels);
+        data.writeInt32(channelMask);
         data.writeInt32(static_cast <uint32_t>(flags));
         remote()->transact(GET_OUTPUT, data, &reply);
         return static_cast <audio_io_handle_t> (reply.readInt32());
@@ -175,7 +175,7 @@
                                     audio_source_t inputSource,
                                     uint32_t samplingRate,
                                     audio_format_t format,
-                                    uint32_t channels,
+                                    audio_channel_mask_t channelMask,
                                     int audioSession)
     {
         Parcel data, reply;
@@ -183,7 +183,7 @@
         data.writeInt32((int32_t) inputSource);
         data.writeInt32(samplingRate);
         data.writeInt32(static_cast <uint32_t>(format));
-        data.writeInt32(channels);
+        data.writeInt32(channelMask);
         data.writeInt32(audioSession);
         remote()->transact(GET_INPUT, data, &reply);
         return static_cast <audio_io_handle_t> (reply.readInt32());
@@ -415,14 +415,14 @@
                     static_cast <audio_stream_type_t>(data.readInt32());
             uint32_t samplingRate = data.readInt32();
             audio_format_t format = (audio_format_t) data.readInt32();
-            uint32_t channels = data.readInt32();
+            audio_channel_mask_t channelMask = data.readInt32();
             audio_output_flags_t flags =
                     static_cast <audio_output_flags_t>(data.readInt32());
 
             audio_io_handle_t output = getOutput(stream,
                                                  samplingRate,
                                                  format,
-                                                 channels,
+                                                 channelMask,
                                                  flags);
             reply->writeInt32(static_cast <int>(output));
             return NO_ERROR;
@@ -462,12 +462,12 @@
             audio_source_t inputSource = (audio_source_t) data.readInt32();
             uint32_t samplingRate = data.readInt32();
             audio_format_t format = (audio_format_t) data.readInt32();
-            uint32_t channels = data.readInt32();
+            audio_channel_mask_t channelMask = data.readInt32();
             int audioSession = data.readInt32();
             audio_io_handle_t input = getInput(inputSource,
                                                samplingRate,
                                                format,
-                                               channels,
+                                               channelMask,
                                                audioSession);
             reply->writeInt32(static_cast <int>(input));
             return NO_ERROR;