アプリで次のエラーが常に発生します。
09-25 15:52:24.875: E/AudioHardware(144): -----AudioStreamInALSA::read(0x42db0040, 512) END ERROR
09-25 15:52:24.875: E/AudioFlinger(144): Error reading audio input
09-25 15:52:24.882: D/AudioHardware(144): AudioStreamInALSA::setParameters() routing=0
09-25 15:52:25.394: W/AudioRecord(7359): obtainBuffer timed out (is the CPU pegged?) user=00000000, server=00000000
09-25 15:52:25.398: D/AudioHardware(144): AudioStreamInALSA::setParameters() input_source=1;routing=262144
AudioRecordインスタンスを作成するための私のコードは次のとおりです。
int minValue = AudioRecord.getMinBufferSize(sampleRate,
AudioFormat.CHANNEL_IN_MONO,
AudioFormat.ENCODING_PCM_16BIT);
// Gets a buffer size that is greater than the minimun required and is multiple of the chunk size
BUFFER_SIZE_IN_BYTES = getBufferSizeInChunks(minValue);
AudioRecord audioRecord = new AudioRecord(
MediaRecorder.AudioSource.MIC,
sampleRate,
AudioFormat.CHANNEL_IN_MONO,
AudioFormat.ENCODING_PCM_16BIT ,
BUFFER_SIZE_IN_BYTES );
そして、次のようなAudioRecordインスタンス:
@Override
public void run() {
try{
android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_URGENT_AUDIO);
recorder = initAudioRecord();
if (recorder.getState() != AudioRecord.STATE_INITIALIZED) {
return;
}
// Audio input buffer
byte[] audio_data = new byte[BUFFER_SIZE_IN_BYTES];
while (!Thread.interrupted() && keepRunning) {
recorder.startRecording();
recorder.read(audio_data, 0, BUFFER_SIZE_IN_BYTES);
recorder.stop();
// Here I deal with the audio_data ...
// UI feedback
PostToUI(frequency);
}
}
catch(Exception e){
e.printStackTrace();
}
}
private void PostToUI(final double frequency) {
handler.post(new Runnable() {
public void run() {
uiHandler.updateUi(frequency);
}
});
}
分離されたスレッドは、示されているようにオーディオ入力を常に処理します(アクティビティonPause()
が呼び出されない限り)
誰か手がかりがありますか?
完全なログ:
09-27 14:05:29.246: D/AudioHardware(144): AudioStreamInALSA::setParameters() input_source=1;routing=262144
09-27 14:05:29.246: V/AudioHardware(144): openMixer_l() mMixerOpenCnt: 0
09-27 14:05:29.246: V/AudioHardware(144): setInputSource_l(1)
09-27 14:05:29.246: V/AudioHardware(144): closeMixer_l() mMixerOpenCnt: 1
09-27 14:05:29.246: D/AudioHardware(144): AudioHardware pcm capture is exiting standby.
09-27 14:05:29.246: V/AudioHardware(144): AudioStreamInALSA exit standby mNeedEchoReference 0 mEchoReference 0x0
09-27 14:05:29.246: V/AudioHardware(144): open pcm_in driver
09-27 14:05:29.312: V/AudioHardware(144): openMixer_l() mMixerOpenCnt: 0
09-27 14:05:29.312: V/AudioHardware(144): read() wakeup setting route Main Mic
09-27 14:05:41.593: D/Finsky(12273): [1] 5.onFinished: Installation state replication succeeded.
09-27 14:05:49.332: W/AudioHardware(144): read error: -1
09-27 14:05:49.332: D/AudioHardware(144): AudioHardware pcm capture is going to standby.
09-27 14:05:49.332: V/AudioHardware(144): closeMixer_l() mMixerOpenCnt: 1
09-27 14:05:49.375: E/AudioHardware(144): -----AudioStreamInALSA::read(0x42b2d040, 512) END ERROR
09-27 14:05:49.375: E/AudioFlinger(144): Error reading audio input
09-27 14:05:49.386: D/AudioHardware(144): AudioStreamInALSA::setParameters() routing=0
09-27 14:05:49.906: W/AudioRecord(13013): obtainBuffer timed out (is the CPU pegged?) user=00000000, server=00000000
09-27 14:05:49.910: D/AudioHardware(144): AudioStreamInALSA::setParameters() input_source=1;routing=262144
09-27 14:05:49.914: V/AudioHardware(144): openMixer_l() mMixerOpenCnt: 0
09-27 14:05:49.914: V/AudioHardware(144): setInputSource_l(1)
09-27 14:05:49.914: V/AudioHardware(144): closeMixer_l() mMixerOpenCnt: 1
09-27 14:05:49.921: D/AudioHardware(144): AudioHardware pcm capture is exiting standby.
09-27 14:05:49.921: V/AudioHardware(144): AudioStreamInALSA exit standby mNeedEchoReference 0 mEchoReference 0x0
09-27 14:05:49.921: V/AudioHardware(144): open pcm_in driver
09-27 14:05:50.000: V/AudioHardware(144): openMixer_l() mMixerOpenCnt: 0