我正在尝试使用JavaCV直播到RTMP nginx服务器。我正在使用这个例子： https://github.com/bytedeco/javacv/blob/master/samples/RecordActivity.java
我想使用该示例在全屏纵向模式下直播。我尝试改变一些事情，但视频结果变得像this
这是我对布局，记录器和FFmpegFrameFilter的初始化：
private int imageWidth = 720;
private int imageHeight = 1280;
private void initFilter() {
filter = new FFmpegFrameFilter("transpose=clock", imageWidth-1, imageHeight-1);
filter.setPixelFormat(avutil.AV_PIX_FMT_NV21); // default camera format on Android
try {
filter.start();
} catch (FrameFilter.Exception e) {
e.printStackTrace();
}
}
private void initLayout() {
/* get size of screen */
Display display = ((WindowManager) getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
screenWidth = display.getWidth();
screenHeight = display.getHeight();
RelativeLayout.LayoutParams layoutParam = null;
LayoutInflater myInflate = null;
myInflate = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
topLayout = (FrameLayout)findViewById(R.id.record_layout);
RelativeLayout preViewLayout = (RelativeLayout) myInflate.inflate(R.layout.activity_main, null);
layoutParam = new RelativeLayout.LayoutParams(screenWidth, screenHeight);
topLayout.addView(preViewLayout, layoutParam);
/* add camera view */
layoutParam = new RelativeLayout.LayoutParams(screenWidth, screenHeight);
cameraDevice = Camera.open();
Log.i(LOG_TAG, "cameara open");
cameraView = new CameraView(this, cameraDevice);
topLayout.addView(cameraView, layoutParam);
Log.i(LOG_TAG, "cameara preview start: OK");
}
private void initRecorder() {
Log.w(LOG_TAG, "init recorder");
if (RECORD_LENGTH > 0) {
imagesIndex = 0;
images = new Frame[RECORD_LENGTH * frameRate];
timestamps = new long[images.length];
for (int i = 0; i < images.length; i++) {
images[i] = new Frame(imageWidth, imageHeight, Frame.DEPTH_UBYTE, 2);
timestamps[i] = -1;
}
} else if (yuvImage == null) {
yuvImage = new Frame(imageWidth, imageHeight, Frame.DEPTH_UBYTE, 2);
Log.i(LOG_TAG, "create yuvImage");
}
Log.i(LOG_TAG, "ffmpeg_url: " + ffmpeg_link);
recorder = new FFmpegFrameRecorder(ffmpeg_link, imageWidth, imageHeight, 1);
recorder.setFormat("flv");
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);
runAudioThread = true;
}
这是surfaceView的代码
class CameraView extends SurfaceView implements SurfaceHolder.Callback, PreviewCallback {
private SurfaceHolder mHolder;
private Camera mCamera;
public void addCallback()
{
mHolder.addCallback(CameraView.this);
}
public void removeCallback()
{
mHolder.removeCallback(CameraView.this);
}
public CameraView(Context context, Camera camera) {
super(context);
Log.w("camera","camera view");
mCamera = camera;
mHolder = getHolder();
mHolder.addCallback(CameraView.this);
mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
mCamera.setPreviewCallback(CameraView.this);
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
Log.v("StreamActivity","Surface Created");
if (!paused) {
try {
stopPreview();
mCamera.setPreviewDisplay(holder);
mCamera.setDisplayOrientation(90);
} catch (IOException exception) {
mCamera.release();
mCamera = null;
}
}
}
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
Log.v("StreamActivity", "surfaceChanged");
stopPreview();
Camera.Parameters camParams = mCamera.getParameters();
List<Camera.Size> sizes = camParams.getSupportedPreviewSizes();
// Sort the list in ascending order
Collections.sort(sizes, new Comparator<Camera.Size>() {
public int compare(final Camera.Size a, final Camera.Size b) {
return a.width * a.height - b.width * b.height;
}
});
int imageWidth2 = imageHeight;
int imageHeight2 = imageWidth;
// Pick the first preview size that is equal or bigger, or pick the last (biggest) option if we cannot
// reach the initial settings of imageWidth/imageHeight.
for (int i = 0; i < sizes.size(); i++) {
if ((sizes.get(i).width >= imageWidth2 && sizes.get(i).height >= imageHeight2) || i == sizes.size() - 1) {
imageWidth2 = sizes.get(i).width;
imageHeight2 = sizes.get(i).height;
Log.v(LOG_TAG, "Changed to supported resolution: " + imageWidth2 + "x" + imageHeight2);
break;
}
}
//
// camParams.set("rotation",90);
camParams.setPreviewSize(imageWidth2, imageHeight2);
camParams.setPreviewFrameRate(frameRate);
mCamera.setParameters(camParams);
// Set the holder (which might have changed) again
try {
mCamera.setPreviewDisplay(holder);
mCamera.setPreviewCallback(CameraView.this);
startPreview();
} catch (Exception e) {
Log.e(LOG_TAG, "Could not set preview display in surfaceChanged");
}
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
Log.v("StreamActivity","Surface Destroyed");
try {
mHolder.addCallback(null);
mCamera.setPreviewCallback(null);
} catch (RuntimeException e) {
// The camera has probably just been released, ignore.
}
}
public void startPreview() {
if (!isPreviewOn && mCamera != null) {
isPreviewOn = true;
mCamera.startPreview();
}
}
public void stopPreview() {
if (isPreviewOn && mCamera != null) {
isPreviewOn = false;
mCamera.stopPreview();
}
}
@Override
public void onPreviewFrame(byte[] data, Camera camera) {
//Log.v("StreamActivity","onPreviewFrame");
if (audioRecord == null || audioRecord.getRecordingState() != AudioRecord.RECORDSTATE_RECORDING) {
startTime = System.currentTimeMillis();
return;
}
if (RECORD_LENGTH > 0) {
int i = imagesIndex++ % images.length;
yuvImage = images[i];
timestamps[i] = 1000 * (System.currentTimeMillis() - startTime);
}
/* get video data */
if (yuvImage != null && recording) {
((ByteBuffer)yuvImage.image[0].position(0)).put(data);
if (RECORD_LENGTH <= 0) try {
Log.v(LOG_TAG,"Writing Frame");
long t = 1000 * (System.currentTimeMillis() - startTime);
if (t > recorder.getTimestamp()) {
recorder.setTimestamp(t);
}
filter.push(yuvImage);
Frame frame;
while ((frame = filter.pull()) != null) {
recorder.record(frame,avutil.AV_PIX_FMT_NV21);
}
//recorder.record(yuvImage);1
} catch (FFmpegFrameRecorder.Exception e) {
Log.v(LOG_TAG, e.getMessage());
e.printStackTrace();
} catch (FrameFilter.Exception e) {
e.printStackTrace();
}
}
}
}
我该怎么做才能以纵向模式和全屏录制视频？提前致谢。