Merge pull request #26407 from marcelofg55/audio_input_android
Implement Audio Input support on Android
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commit
482dcf5266
2 changed files with 119 additions and 0 deletions
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@ -211,6 +211,110 @@ void AudioDriverOpenSL::start() {
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active = true;
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}
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void AudioDriverOpenSL::_record_buffer_callback(SLAndroidSimpleBufferQueueItf queueItf) {
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for (int i = 0; i < rec_buffer.size(); i++) {
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int32_t sample = rec_buffer[i] << 16;
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input_buffer_write(sample);
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input_buffer_write(sample); // call twice to convert to Stereo
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}
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SLresult res = (*recordBufferQueueItf)->Enqueue(recordBufferQueueItf, rec_buffer.ptrw(), rec_buffer.size() * sizeof(int16_t));
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ERR_FAIL_COND(res != SL_RESULT_SUCCESS);
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}
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void AudioDriverOpenSL::_record_buffer_callbacks(SLAndroidSimpleBufferQueueItf queueItf, void *pContext) {
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AudioDriverOpenSL *ad = (AudioDriverOpenSL *)pContext;
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ad->_record_buffer_callback(queueItf);
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}
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Error AudioDriverOpenSL::capture_start() {
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SLDataLocator_IODevice loc_dev = {
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SL_DATALOCATOR_IODEVICE,
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SL_IODEVICE_AUDIOINPUT,
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SL_DEFAULTDEVICEID_AUDIOINPUT,
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NULL
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};
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SLDataSource recSource = { &loc_dev, NULL };
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SLDataLocator_AndroidSimpleBufferQueue loc_bq = {
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SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE,
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2
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};
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SLDataFormat_PCM format_pcm = {
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SL_DATAFORMAT_PCM,
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1,
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SL_SAMPLINGRATE_44_1,
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SL_PCMSAMPLEFORMAT_FIXED_16,
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SL_PCMSAMPLEFORMAT_FIXED_16,
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SL_SPEAKER_FRONT_CENTER,
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SL_BYTEORDER_LITTLEENDIAN
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};
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SLDataSink recSnk = { &loc_bq, &format_pcm };
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const SLInterfaceID ids[2] = { SL_IID_ANDROIDSIMPLEBUFFERQUEUE, SL_IID_ANDROIDCONFIGURATION };
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const SLboolean req[2] = { SL_BOOLEAN_TRUE, SL_BOOLEAN_TRUE };
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SLresult res = (*EngineItf)->CreateAudioRecorder(EngineItf, &recorder, &recSource, &recSnk, 2, ids, req);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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res = (*recorder)->Realize(recorder, SL_BOOLEAN_FALSE);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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res = (*recorder)->GetInterface(recorder, SL_IID_RECORD, (void *)&recordItf);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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res = (*recorder)->GetInterface(recorder, SL_IID_ANDROIDSIMPLEBUFFERQUEUE, (void *)&recordBufferQueueItf);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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res = (*recordBufferQueueItf)->RegisterCallback(recordBufferQueueItf, _record_buffer_callbacks, this);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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SLuint32 state;
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res = (*recordItf)->GetRecordState(recordItf, &state);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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if (state != SL_RECORDSTATE_STOPPED) {
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res = (*recordItf)->SetRecordState(recordItf, SL_RECORDSTATE_STOPPED);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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res = (*recordBufferQueueItf)->Clear(recordBufferQueueItf);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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}
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const int rec_buffer_frames = 2048;
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rec_buffer.resize(rec_buffer_frames);
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input_buffer_init(rec_buffer_frames);
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res = (*recordBufferQueueItf)->Enqueue(recordBufferQueueItf, rec_buffer.ptrw(), rec_buffer.size() * sizeof(int16_t));
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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res = (*recordItf)->SetRecordState(recordItf, SL_RECORDSTATE_RECORDING);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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return OK;
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}
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Error AudioDriverOpenSL::capture_stop() {
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SLuint32 state;
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SLresult res = (*recordItf)->GetRecordState(recordItf, &state);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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if (state != SL_RECORDSTATE_STOPPED) {
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res = (*recordItf)->SetRecordState(recordItf, SL_RECORDSTATE_STOPPED);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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res = (*recordBufferQueueItf)->Clear(recordBufferQueueItf);
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ERR_FAIL_COND_V(res != SL_RESULT_SUCCESS, ERR_CANT_OPEN);
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}
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return OK;
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}
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int AudioDriverOpenSL::get_mix_rate() const {
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return 44100;
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@ -54,13 +54,18 @@ class AudioDriverOpenSL : public AudioDriver {
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int32_t *mixdown_buffer;
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int last_free;
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Vector<int16_t> rec_buffer;
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SLPlayItf playItf;
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SLRecordItf recordItf;
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SLObjectItf sl;
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SLEngineItf EngineItf;
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SLObjectItf OutputMix;
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SLVolumeItf volumeItf;
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SLObjectItf player;
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SLObjectItf recorder;
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SLAndroidSimpleBufferQueueItf bufferQueueItf;
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SLAndroidSimpleBufferQueueItf recordBufferQueueItf;
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SLDataSource audioSource;
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SLDataFormat_PCM pcm;
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SLDataSink audioSink;
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@ -76,6 +81,13 @@ class AudioDriverOpenSL : public AudioDriver {
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SLAndroidSimpleBufferQueueItf queueItf,
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void *pContext);
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void _record_buffer_callback(
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SLAndroidSimpleBufferQueueItf queueItf);
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static void _record_buffer_callbacks(
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SLAndroidSimpleBufferQueueItf queueItf,
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void *pContext);
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public:
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void set_singleton();
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@ -91,6 +103,9 @@ public:
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virtual void set_pause(bool p_pause);
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virtual Error capture_start();
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virtual Error capture_stop();
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AudioDriverOpenSL();
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};
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