help needed: Cannot set stream type: audio player already realized

[余曦文]

opensl es work with earspeaker , make this mistake,please help me

result = (*bqPlayerObject)->GetInterface(bqPlayerObject, SL_IID_ANDROIDCONFIGURATION, &configItf);

assert(SL_RESULT_SUCCESS == result);

(void) result;

SLint32 streamType = SL_ANDROID_STREAM_VOICE;

result = (*configItf)->SetConfiguration(configItf, SL_ANDROID_KEY_STREAM_TYPE, &streamType, sizeof(SLint32));

assert(SL_RESULT_SUCCESS == result);

(void) result;

[Glenn Kasten]

I don't have the full context.  Can you give the other APIs you called before this?

And which API returned status "already realized"?

[余曦文]

thank you first, I mean I want to change speaker to earpiece in opensl,so I need to  SetConfiguration,like this:

       result = (*configItf)->SetConfiguration(configItf, SL_ANDROID_KEY_STREAM_TYPE, &streamType, sizeof(SLint32));

assert(SL_RESULT_SUCCESS == result);

(void) result;

but it must set before   this:

// realize the player

result = (*bqPlayerObject)->Realize(bqPlayerObject, SL_BOOLEAN_FALSE );

assert(SL_RESULT_SUCCESS == result);

(void) result;

so when i  change earpiece to speaker again, it  tells me "already realized"   

do you understand?

Glenn Kasten於 2015年2月27日星期五 UTC+8上午4時24分02秒寫道：

[Glenn Kasten]

SL_ANDROID_KEY_STREAM_TYPE is a configuration (creation) parameter,
not a runtime parameter. If you want to change SL_ANDROID_KEY_STREAM_TYPE after creation,
you will need to destroy the player and re-create it.

[余曦文]

yes,i did it as you said,and it worked ok, but i feel the code is too long, i look up the user guide,it says this configuration is the same as android API,so i decide change speaker to earpiece by android's API, anyway thank you Glenn.

Glenn Kasten於 2015年3月2日星期一 UTC+8上午11時26分28秒寫道：