android 使用javacv进行录像[模仿vine]

public void initRecorder() {
String ffmpeg_link = parentPath + "/" + "video.mp4";
Log.w(LOG_TAG, "init recorder");

if (yuvIplimage == null) {
yuvIplimage = IplImage.create(cameraManager.getDefaultSize().width,
cameraManager.getDefaultSize().height, IPL_DEPTH_8U, 2);
Log.i(LOG_TAG, "create yuvIplimage");
}

Log.i(LOG_TAG, "ffmpeg_url: " + ffmpeg_link);
recorder = new FFmpegFrameRecorder(ffmpeg_link,
cameraManager.getDefaultSize().width,
cameraManager.getDefaultSize().height, 1);
recorder.setFormat("mp4");
recorder.setSampleRate(sampleAudioRateInHz);
// Set in the surface changed method
recorder.setFrameRate(frameRate);

Log.i(LOG_TAG, "recorder initialize success");

audioRecordRunnable = new AudioRecordRunnable();
audioThread = new Thread(audioRecordRunnable);
try {
recorder.start();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
audioThread.start();
}

public void onPreviewFrame(byte[] data, Camera camera) {
int during = checkIfMax(new Date().getTime());
/* get video data */
if (yuvIplimage != null && isStart) {
yuvIplimage.getByteBuffer().put(data);
//yuvIplimage = rotateImage(yuvIplimage.asCvMat(), 90).asIplImage();
Log.v(LOG_TAG, "Writing Frame");
try {
System.out.println(System.currentTimeMillis() - videoStartTime);
if (during < 6000) {
recorder.setTimestamp(1000 * during);
recorder.record(yuvIplimage);
}
} catch (FFmpegFrameRecorder.Exception e) {
Log.v(LOG_TAG, e.getMessage());
e.printStackTrace();
}
}
}

class AudioRecordRunnable implements Runnable {

@Override
public void run() {
android.os.Process
.setThreadPriority(android.os.Process.THREAD_PRIORITY_URGENT_AUDIO);

// Audio
int bufferSize;
short[] audioData;
int bufferReadResult;

bufferSize = AudioRecord.getMinBufferSize(sampleAudioRateInHz,
AudioFormat.CHANNEL_CONFIGURATION_MONO,
AudioFormat.ENCODING_PCM_16BIT);
audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC,
sampleAudioRateInHz,
AudioFormat.CHANNEL_CONFIGURATION_MONO,
AudioFormat.ENCODING_PCM_16BIT, bufferSize);

audioData = new short[bufferSize];

Log.d(LOG_TAG, "audioRecord.startRecording()");
audioRecord.startRecording();

/* ffmpeg_audio encoding loop */
while (!isFinished) {
// Log.v(LOG_TAG,"recording? " + recording);
bufferReadResult = audioRecord.read(audioData, 0,
audioData.length);
if (bufferReadResult > 0) {
// Log.v(LOG_TAG, "bufferReadResult: " + bufferReadResult);
// If "recording" isn't true when start this thread, it
// never get's set according to this if statement...!!!
// Why? Good question...
if (isStart) {
try {
Buffer[] barray = new Buffer[1];
barray[0] = ShortBuffer.wrap(audioData, 0,
bufferReadResult);
recorder.record(barray);
// Log.v(LOG_TAG,"recording " + 1024*i + " to " +
// 1024*i+1024);
} catch (FFmpegFrameRecorder.Exception e) {
Log.v(LOG_TAG, e.getMessage());
e.printStackTrace();
}
}
}
}
Log.v(LOG_TAG, "AudioThread Finished, release audioRecord");

/* encoding finish, release recorder */
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
audioRecord = null;
Log.v(LOG_TAG, "audioRecord released");
}
}
}