commit decb6295141a9507886d7536569d17921941a0e6
author Mikhail Naganov <mnaganov@google.com> Wed Apr 10 16:49:02 2019 -0700
committer Mikhail Naganov <mnaganov@google.com> Mon Apr 22 11:01:51 2019 -0700
tree fa806e9a492432ee0566fca600abe79d06b19cc8
parent 8cd204d6cd66f581e10ce574ba72faf1ebf6b592

Add IAudioManager methods for tracking client recording activity

audio_unique_id_t IAudioManager::trackRecorder(IBinder token)
  - registers a client recorder withing Audio Service,
    returns a unique tracking recording ID (RIID);
    Audio Service tracks the lifetime of the recorder using
    the provided token.

oneway recorderEvent(int riid, int event)
  - updates the current state of the client;
    only "started" and "stoped" states are considered.

Bug: 123312504
Test: android.media.cts.AudioRecordingConfigurationTest
      AudioRecordTest#testAudioRecordInfoCallback
      MediaRecorderTest#testAudioRecordInfoCallback
      manual testing using Oboe and Solo test apps

Change-Id: Iddb1b91fff7127ab35ba1d33e3e6c32937ac3081

include/audiomanager/AudioManager.h

diff --git a/include/audiomanager/AudioManager.h b/include/audiomanager/AudioManager.h
index 009dc52..639df7a 100644
--- a/include/audiomanager/AudioManager.h
+++ b/include/audiomanager/AudioManager.h
@@ -20,7 +20,6 @@
 namespace android {
 
 // must be kept in sync with definitions in AudioPlaybackConfiguration.java
-
 #define PLAYER_PIID_INVALID -1
 
 typedef enum {
@@ -40,6 +39,15 @@
     PLAYER_STATE_STOPPED  = 4,
 } player_state_t;
 
+// must be kept in sync with definitions in AudioManager.java
+#define RECORD_RIID_INVALID -1
+
+typedef enum {
+    RECORDER_STATE_UNKNOWN  = -1,
+    RECORDER_STATE_STARTED  = 0,
+    RECORDER_STATE_STOPPED  = 1,
+} recorder_state_t;
+
 }; // namespace android
 
 #endif // ANDROID_AUDIOMANAGER_H

include/audiomanager/IAudioManager.h

diff --git a/include/audiomanager/IAudioManager.h b/include/audiomanager/IAudioManager.h
index d279bbd..d0642c6 100644
--- a/include/audiomanager/IAudioManager.h
+++ b/include/audiomanager/IAudioManager.h
@@ -36,6 +36,8 @@
         PLAYER_ATTRIBUTES                     = IBinder::FIRST_CALL_TRANSACTION + 1,
         PLAYER_EVENT                          = IBinder::FIRST_CALL_TRANSACTION + 2,
         RELEASE_PLAYER                        = IBinder::FIRST_CALL_TRANSACTION + 3,
+        TRACK_RECORDER                        = IBinder::FIRST_CALL_TRANSACTION + 4,
+        RECORDER_EVENT                        = IBinder::FIRST_CALL_TRANSACTION + 5,
     };
 
     DECLARE_META_INTERFACE(AudioManager)
@@ -48,6 +50,8 @@
                 audio_content_type_t content)= 0;
     /*oneway*/ virtual status_t playerEvent(audio_unique_id_t piid, player_state_t event) = 0;
     /*oneway*/ virtual status_t releasePlayer(audio_unique_id_t piid) = 0;
+    virtual audio_unique_id_t trackRecorder(const sp<IBinder>& recorder) = 0;
+    /*oneway*/ virtual status_t recorderEvent(audio_unique_id_t riid, recorder_state_t event) = 0;
 };
 
 // ----------------------------------------------------------------------------