[ANDROID] - Record audio to ByteBuffer

gistfile1.java

class AudioRecordThread implements Runnable {
        @Override
        public void run() {
            int bufferLength = 0;
            int bufferSize;
            short[] audioData;
            int bufferReadResult;

            try {
                bufferSize = AudioRecord.getMinBufferSize(sampleAudioBitRate, 
                        AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT);

                if (bufferSize <= 2048) {
                    bufferLength = 2048;
                } else if (bufferSize <= 4096) {
                    bufferLength = 4096;
                }

                /* set audio recorder parameters, and start recording */
                audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, sampleAudioBitRate, 
                        AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT, bufferLength);
                audioData = new short[bufferLength];
                audioRecord.startRecording();
                Log.d(LOG_TAG, "audioRecord.startRecording()");

                isAudioRecording = true;

                /* ffmpeg_audio encoding loop */
                while (isAudioRecording) {
                    bufferReadResult = audioRecord.read(audioData, 0, audioData.length);

                    if (bufferReadResult == 1024 && isRecorderStart) {
                        Buffer realAudioData1024 = ShortBuffer.wrap(audioData,0,1024);

                    *********************************** 
                        recorder.record(realAudioData1024);
                        ***********************************

                    } else if (bufferReadResult == 2048 && isRecorderStart) {
                        Buffer realAudioData2048_1=ShortBuffer.wrap(audioData, 0, 1024);
                        Buffer realAudioData2048_2=ShortBuffer.wrap(audioData, 1024, 1024);
                        for (int i = 0; i < 2; i++) {
                            if (i == 0) {
        ***********************************                     
        recorder.record(realAudioData2048_1);
        ***********************************                      

                            } else if (i == 1) {
***********************************
recorder.record(realAudioData2048_2);
***********************************


                            }
                        }
                    }
                }

                /* encoding finish, release recorder */
                if (audioRecord != null) {
                    try {
                        audioRecord.stop();
                        audioRecord.release();

                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                    audioRecord = null;
                }

                if (recorder != null && isRecorderStart) {
                    try {
                        recorder.stop();
                        recorder.release();
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                    recorder = null;
                }
            } catch (Exception e) {
                Log.e(LOG_TAG, "get audio data failed:"+e.getMessage()+e.getCause()+e.toString());
            }

        }
    }