@Override
public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
// If your preview can change or rotate, take care of those events here.
// Make sure to stop the preview before resizing or reformatting it.
Log.d(TAG, "surfaceChanged, w:" + w + ", h:" + h);
mCameraEngine.stopPreview(false);
startPreview();
// stop preview before making changes
/*try {
mCamera.stopPreview();
} catch (Exception e){
// ignore: tried to stop a non-existent preview
}
// set preview size and make any resize, rotate or
// reformatting changes here
// start preview with new settings
try {
mCamera.setPreviewDisplay(mHolder);
mCamera.setDisplayOrientation(90);
mCamera.setPreviewCallback(new PreviewCallback() {
@Override
public void onPreviewFrame(byte[] arg0, Camera arg1) {
// Log.d(TAG, "onPreviewFrame, size:" + arg0.length);
if (arg0 == null || arg0.length == 0) {
return;
}
long now = System.currentTimeMillis();
if (now - lastTime < 40) {
return;
}
lastTime = now;
Camera.Parameters params = mCamera.getParameters();
if (params.getPreviewFormat() == ImageFormat.NV21) {
new ImageTask(params.getPreviewSize().width, params.getPreviewSize().height, frameCount++).execute(arg0);
} else {
Log.v(TAG,"NOT THE RIGHT FORMAT");
}
}
});
mCamera.startPreview();
} catch (Exception e){
Log.d(TAG, "Error starting camera preview: " + e.getMessage());
}*/
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
// The Surface has been created, now tell the camera where to draw the preview.
/*try {
mCamera.setPreviewDisplay(holder);
mCamera.startPreview();
} catch (IOException e) {
Log.d(TAG, "Error setting camera preview: " + e.getMessage());
}*/
// startPreview();
mCameraEngine.openCamAsync();
Log.d(TAG, "surfaceCreated");
}
public void startPreview() {
if (mHolder.getSurface() == null) {
// preview surface does not exist
return;
}
mCameraEngine.startPreview(
mHolder,
new PreviewCallback() {
@Override
public void onPreviewFrame(byte[] data, Camera camera) {
if (mOnPreviewCallback != null) {
mOnPreviewCallback.onPreviewFrame(data);
}
}
});
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
// empty. Take care of releasing the Camera preview in your activity.
Log.d(TAG, "surfaceDestroyed");
mCameraEngine.stopPreview(true);
}
