Convert mask types from uint32_t to enum type

This applies to the following types:

- audio_gain_mode_t;
- audio_flags_mask_t;
- audio_channel_representation_t;
- audio_channel_mask_t;
- audio_devices_t.

Enum types are distinct thus proper overloading on the type
is possible in C++. Also, assignments to enum types are
less prone to errors.

Bug: 169889714
Test: basic audio functionality
      m stagefright
      atest audiopolicy_tests
Change-Id: I42506484b1d0b0482618b7314fad4c8012a06fb4
diff --git a/media/libaudioclient/AudioRecord.cpp b/media/libaudioclient/AudioRecord.cpp
index d6671e3..55b836f 100644
--- a/media/libaudioclient/AudioRecord.cpp
+++ b/media/libaudioclient/AudioRecord.cpp
@@ -279,7 +279,8 @@
         mAttributes.source = inputSource;
         if (inputSource == AUDIO_SOURCE_VOICE_COMMUNICATION
                 || inputSource == AUDIO_SOURCE_CAMCORDER) {
-            mAttributes.flags |= AUDIO_FLAG_CAPTURE_PRIVATE;
+            mAttributes.flags = static_cast<audio_flags_mask_t>(
+                    mAttributes.flags | AUDIO_FLAG_CAPTURE_PRIVATE);
         }
     } else {
         // stream type shouldn't be looked at, this track has audio attributes
diff --git a/media/libaudioclient/AudioTrack.cpp b/media/libaudioclient/AudioTrack.cpp
index 41af78c..2c40fbb 100644
--- a/media/libaudioclient/AudioTrack.cpp
+++ b/media/libaudioclient/AudioTrack.cpp
@@ -227,7 +227,7 @@
 {
     mAttributes.content_type = AUDIO_CONTENT_TYPE_UNKNOWN;
     mAttributes.usage = AUDIO_USAGE_UNKNOWN;
-    mAttributes.flags = 0x0;
+    mAttributes.flags = AUDIO_FLAG_NONE;
     strcpy(mAttributes.tags, "");
 }
 
@@ -467,7 +467,7 @@
     if (format == AUDIO_FORMAT_DEFAULT) {
         format = AUDIO_FORMAT_PCM_16_BIT;
     } else if (format == AUDIO_FORMAT_IEC61937) { // HDMI pass-through?
-        mAttributes.flags |= AUDIO_OUTPUT_FLAG_IEC958_NONAUDIO;
+        flags = static_cast<audio_output_flags_t>(flags | AUDIO_OUTPUT_FLAG_IEC958_NONAUDIO);
     }
 
     // validate parameters
@@ -644,6 +644,36 @@
     return status;
 }
 
+
+status_t AudioTrack::set(
+        audio_stream_type_t streamType,
+        uint32_t sampleRate,
+        audio_format_t format,
+        uint32_t channelMask,
+        size_t frameCount,
+        audio_output_flags_t flags,
+        callback_t cbf,
+        void* user,
+        int32_t notificationFrames,
+        const sp<IMemory>& sharedBuffer,
+        bool threadCanCallJava,
+        audio_session_t sessionId,
+        transfer_type transferType,
+        const audio_offload_info_t *offloadInfo,
+        uid_t uid,
+        pid_t pid,
+        const audio_attributes_t* pAttributes,
+        bool doNotReconnect,
+        float maxRequiredSpeed,
+        audio_port_handle_t selectedDeviceId)
+{
+    return set(streamType, sampleRate, format,
+            static_cast<audio_channel_mask_t>(channelMask),
+            frameCount, flags, cbf, user, notificationFrames, sharedBuffer,
+            threadCanCallJava, sessionId, transferType, offloadInfo, uid, pid,
+            pAttributes, doNotReconnect, maxRequiredSpeed, selectedDeviceId);
+}
+
 // -------------------------------------------------------------------------
 
 status_t AudioTrack::start()
diff --git a/media/libaudioclient/IAudioFlinger.cpp b/media/libaudioclient/IAudioFlinger.cpp
index b4e07e0..0a4e55c 100644
--- a/media/libaudioclient/IAudioFlinger.cpp
+++ b/media/libaudioclient/IAudioFlinger.cpp
@@ -1221,7 +1221,7 @@
             CHECK_INTERFACE(IAudioFlinger, data, reply);
             uint32_t sampleRate = data.readInt32();
             audio_format_t format = (audio_format_t) data.readInt32();
-            audio_channel_mask_t channelMask = data.readInt32();
+            audio_channel_mask_t channelMask = (audio_channel_mask_t) data.readInt32();
             reply->writeInt64( getInputBufferSize(sampleRate, format, channelMask) );
             return NO_ERROR;
         } break;
diff --git a/media/libaudioclient/IAudioPolicyService.cpp b/media/libaudioclient/IAudioPolicyService.cpp
index 9d3212b..23b5ae1 100644
--- a/media/libaudioclient/IAudioPolicyService.cpp
+++ b/media/libaudioclient/IAudioPolicyService.cpp
@@ -2696,7 +2696,7 @@
         case SET_ALLOWED_CAPTURE_POLICY: {
             CHECK_INTERFACE(IAudioPolicyService, data, reply);
             uid_t uid = data.readInt32();
-            audio_flags_mask_t flags = data.readInt32();
+            audio_flags_mask_t flags = static_cast<audio_flags_mask_t>(data.readInt32());
             status_t status = setAllowedCapturePolicy(uid, flags);
             reply->writeInt32(status);
             return NO_ERROR;
diff --git a/media/libaudioclient/include/media/AudioTrack.h b/media/libaudioclient/include/media/AudioTrack.h
index a9946da..de183d8 100644
--- a/media/libaudioclient/include/media/AudioTrack.h
+++ b/media/libaudioclient/include/media/AudioTrack.h
@@ -344,6 +344,27 @@
                             bool doNotReconnect = false,
                             float maxRequiredSpeed = 1.0f,
                             audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE);
+    // FIXME(b/169889714): Vendor code depends on the old method signature at link time
+            status_t    set(audio_stream_type_t streamType,
+                            uint32_t sampleRate,
+                            audio_format_t format,
+                            uint32_t channelMask,
+                            size_t frameCount   = 0,
+                            audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
+                            callback_t cbf      = NULL,
+                            void* user          = NULL,
+                            int32_t notificationFrames = 0,
+                            const sp<IMemory>& sharedBuffer = 0,
+                            bool threadCanCallJava = false,
+                            audio_session_t sessionId  = AUDIO_SESSION_ALLOCATE,
+                            transfer_type transferType = TRANSFER_DEFAULT,
+                            const audio_offload_info_t *offloadInfo = NULL,
+                            uid_t uid = AUDIO_UID_INVALID,
+                            pid_t pid = -1,
+                            const audio_attributes_t* pAttributes = NULL,
+                            bool doNotReconnect = false,
+                            float maxRequiredSpeed = 1.0f,
+                            audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE);
 
     /* Result of constructing the AudioTrack. This must be checked for successful initialization
      * before using any AudioTrack API (except for set()), because using