commit c0c70e3c7dd10bc2c0caffcab1f3f5fb406b35fb
author Phil Burk <philburk@google.com> Thu Feb 09 13:18:38 2017 -0800
committer Phil Burk <philburk@google.com> Wed Apr 12 18:26:12 2017 +0000
tree 2544186372c9778460821e410c09a0edba8a17bf
parent d1b4d0a6a65476236f972cfc181a1db2b96d93ef

AAudioService: integrated with audioserver

Call the MmapStreamInterface from AudioFlinger instead of the FakeHAL.
Fix sending timestamps from the thread.
Add shared mode in service.

Bug: 35260844
Bug: 33398120
Test: CTS test_aaudio.cpp
Change-Id: I44c7e4ecae4ce205611b6b73a72e0ae8a5b243e5
Signed-off-by: Phil Burk <philburk@google.com>
(cherry picked from commit 7f6b40d78b1976c78d1300e8a51fda36eeb50c5d)

media/libaaudio/src/binding/IAAudioService.h

diff --git a/media/libaaudio/src/binding/IAAudioService.h b/media/libaaudio/src/binding/IAAudioService.h
index 53c3b45..ab7fd1b 100644
--- a/media/libaaudio/src/binding/IAAudioService.h
+++ b/media/libaaudio/src/binding/IAAudioService.h
@@ -28,9 +28,12 @@
 #include "binding/AudioEndpointParcelable.h"
 #include "binding/AAudioStreamRequest.h"
 #include "binding/AAudioStreamConfiguration.h"
+#include "utility/HandleTracker.h"
 
 namespace android {
 
+#define AAUDIO_SERVICE_NAME  "media.aaudio"
+
 // Interface (our AIDL) - Shared by server and client
 class IAAudioService : public IInterface {
 public:
@@ -42,8 +45,8 @@
      * @param configuration contains information about the created stream
      * @return handle to the stream or a negative error
      */
-    virtual aaudio::aaudio_handle_t openStream(aaudio::AAudioStreamRequest &request,
-                                     aaudio::AAudioStreamConfiguration &configuration) = 0;
+    virtual aaudio_handle_t openStream(const aaudio::AAudioStreamRequest &request,
+                                     aaudio::AAudioStreamConfiguration &configurationOutput) = 0;
 
     virtual aaudio_result_t closeStream(aaudio::aaudio_handle_t streamHandle) = 0;
 
@@ -55,26 +58,33 @@
 
     /**
      * Start the flow of data.
+     * This is asynchronous. When complete, the service will send a STARTED event.
      */
     virtual aaudio_result_t startStream(aaudio::aaudio_handle_t streamHandle) = 0;
 
     /**
      * Stop the flow of data such that start() can resume without loss of data.
+     * This is asynchronous. When complete, the service will send a PAUSED event.
      */
     virtual aaudio_result_t pauseStream(aaudio::aaudio_handle_t streamHandle) = 0;
 
     /**
      *  Discard any data held by the underlying HAL or Service.
+     * This is asynchronous. When complete, the service will send a FLUSHED event.
      */
     virtual aaudio_result_t flushStream(aaudio::aaudio_handle_t streamHandle) = 0;
 
     /**
      * Manage the specified thread as a low latency audio thread.
+     * TODO Consider passing this information as part of the startStream() call.
      */
-    virtual aaudio_result_t registerAudioThread(aaudio::aaudio_handle_t streamHandle, pid_t clientThreadId,
+    virtual aaudio_result_t registerAudioThread(aaudio_handle_t streamHandle,
+                                              pid_t clientProcessId,
+                                              pid_t clientThreadId,
                                               int64_t periodNanoseconds) = 0;
 
-    virtual aaudio_result_t unregisterAudioThread(aaudio::aaudio_handle_t streamHandle,
+    virtual aaudio_result_t unregisterAudioThread(aaudio_handle_t streamHandle,
+                                                pid_t clientProcessId,
                                                 pid_t clientThreadId) = 0;
 };