Adding custom audio effect on intrinsyc 835 with Android-O

[Mantesh Eksambe]

I have added effect interface wrapper at hardware/qcom/audio/post_proc/ and add this effect in audio_effect.conf file under proxy section as below

  custom_effect {

    library proxy

    uuid b8e70ecd-48ca-456e-8a4f-0002a5d5c51b

    libsw {

      library bundle

      uuid b0dac280-401c-11e3-9379-0002a5d5c51b

    }

    libhw {

      library my_effect

      uuid b0dac280-401c-11e3-9379-0002a5d5c51b

    }

  }

1. my_effect - this is my custom effect wrapper

2. So I am bit confuse about audio_effect.conf configuration which i have added.

3. I want know how "proxy" will control both effect "libsw" and "libhw"

4. By using which UUID i should invoke my custom effect?

With above process i'm facing following issue. Please do let me know if i'm doing wrong. Thanks in advance.

 AudioFlinger: processConfigEvents_l() DONE thread 0xecce8000

05-03 05:36:10.866  1093  3462 V AudioFlinger: wait async completion (wait time: 9223372036854775807)

05-03 05:36:10.867  1093  2077 V AudioFlinger: createEffect pid 3476, effectClient 0xeb68ea40, priority 0, sessionId 0, io 0, factory 0xecc989c0

05-03 05:36:10.867  1093  2077 D PermissionCache: checking android.permission.MODIFY_AUDIO_SETTINGS for uid=10124 => granted (520 us)

05-03 05:36:10.868   819  1242 E EffectFactoryHAL: Error querying effect descriptor for b0dac280-401c-11e3-9379-0002a5d5c51b: No such file or directory

05-03 05:36:10.868  1093  2077 W AudioFlinger: createEffect() error -2 from EffectGetDescriptor

05-03 05:36:10.869  3476  3476 E AudioEffect: set(): AudioFlinger could not create effect ec7178ec-e5e1-4432-a3f4-4657e6795210 / b0dac280-401c-11e3-9379-0002a5d5c51b, status: -2

05-03 05:36:10.869  3476  3476 E AudioEffects-JNI: AudioEffect initCheck failed -3

05-03 05:36:10.869  3476  3476 V AudioEffect: Destructor 0x7b3f626140

05-03 05:36:10.870  3476  3476 E AudioEffect-JAVA: Error code -3 when initializing AudioEffect.

05-03 05:36:10.870  3476  3476 D AndroidRuntime: Shutting down VM

05-03 05:36:10.872  1093  1485 V AudioFlinger: ### AudioFlinger::MixerThread::prepareTracks_l

05-03 05:36:10.872  1093  1485 V AudioFlinger: onIdleMixer

05-03 05:36:10.875  1093  1487 V AudioFlinger: ### AudioFlinger::MixerThread::prepareTracks_l

05-03 05:36:10.875  1093  1487 V AudioFlinger: onIdleMixer

05-03 05:36:10.876  1093  1491 V AudioFlinger: ### AudioFlinger::MixerThread::prepareTracks_l

05-03 05:36:10.876  1093  1491 V AudioFlinger: onIdleMixer

--------- beginning of crash

05-03 05:36:10.876  3476  3476 E AndroidRuntime: FATAL EXCEPTION: main

05-03 05:36:10.876  3476  3476 E AndroidRuntime: Process: com.example.android.dtsdecimation, PID: 3476

05-03 05:36:10.876  3476  3476 E AndroidRuntime: java.lang.RuntimeException: Cannot initialize effect engine for type: ec7178ec-e5e1-4432-a3f4-4657e6795210 Error: -3

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at android.media.audiofx.AudioEffect.<init>(AudioEffect.java:416)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at android.media.audiofx.DtsDecimation.<init>(DtsDecimation.java:89)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at com.example.android.dtsdecimation.DtsDecimationEffect.getInstance(DtsDecimationEffect.java:19)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at com.example.android.dtsdecimation.Presenter.onDecimationStatusChanged(Presenter.java:41)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at com.example.android.dtsdecimation.databinding.ActivityMainBinding._internalCallbackOnCheckedChanged(ActivityMainBinding.java:219)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at android.databinding.generated.callback.OnCheckedChangeListener.onCheckedChanged(OnCheckedChangeListener.java:11)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at android.widget.CompoundButton.setChecked(CompoundButton.java:171)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at android.support.v7.widget.SwitchCompat.setChecked(SwitchCompat.java:1062)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at android.support.v7.widget.SwitchCompat.toggle(SwitchCompat.java:1057)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at android.widget.CompoundButton.performClick(CompoundButton.java:132)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at android.view.View$PerformClick.run(View.java:24774)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at android.os.Handler.handleCallback(Handler.java:790)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:99)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at android.os.Looper.loop(Looper.java:164)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:6518)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)

05-03 05:36:10.876  3476  3476 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)