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Commit decb6295 authored by Mikhail Naganov's avatar Mikhail Naganov
Browse files

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
parent 8cd204d6

include/audiomanager/AudioManager.h

+9 −1
Original line number Diff line number Diff line
@@ -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 @@ typedef enum { 
    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

+4 −0
Original line number Diff line number Diff line
@@ -36,6 +36,8 @@ public: 
        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 @@ public: 
                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;

};



// ----------------------------------------------------------------------------

services/audiomanager/IAudioManager.cpp

+24 −0
Original line number Diff line number Diff line
@@ -98,6 +98,30 @@ public: 
        data.writeInt32((int32_t) piid);

        return remote()->transact(RELEASE_PLAYER, data, &reply, IBinder::FLAG_ONEWAY);

    }



    virtual audio_unique_id_t trackRecorder(const sp<IBinder>& recorder) {

        Parcel data, reply;

        data.writeInterfaceToken(IAudioManager::getInterfaceDescriptor());

        data.writeStrongBinder(recorder);

        // get new RIId in reply

        const status_t res = remote()->transact(TRACK_RECORDER, data, &reply, 0);

        if (res != OK || reply.readExceptionCode() != 0) {

            ALOGE("trackRecorder() failed, riid is %d", RECORD_RIID_INVALID);

            return RECORD_RIID_INVALID;

        } else {

            const audio_unique_id_t riid = (audio_unique_id_t) reply.readInt32();

            ALOGV("trackRecorder() returned riid %d", riid);

            return riid;

        }

    }



    virtual status_t recorderEvent(audio_unique_id_t riid, recorder_state_t event) {

        Parcel data, reply;

        data.writeInterfaceToken(IAudioManager::getInterfaceDescriptor());

        data.writeInt32((int32_t) riid);

        data.writeInt32((int32_t) event);

        return remote()->transact(RECORDER_EVENT, data, &reply, IBinder::FLAG_ONEWAY);

    }

};



IMPLEMENT_META_INTERFACE(AudioManager, "android.media.IAudioService");