/**
* This method gets called when the zoom control reports that the zoom value has changed. This
* method sets the camera zoom value accordingly.
*
* @param index
*/
private void onZoomValueChanged(int index) {
mZoomValue = index;
ImsCamera imsCamera = mVideoCallManager.getImsCameraInstance();
// Set zoom
if (imsCamera.isZoomSupported()) {
imsCamera.setZoom(mZoomValue);
}
}
/**
* This method get the zoom related parameters from the camera and initialized the zoom control
*/
private void initializeZoom() {
ImsCamera imsCamera = mVideoCallManager.getImsCameraInstance();
if (imsCamera == null) {
return;
}
if (!imsCamera.isZoomSupported()) {
mZoomControl.setVisibility(View.GONE); // Disable ZoomControl
return;
}
mZoomControl.setVisibility(View.VISIBLE); // Enable ZoomControl
mZoomMax = imsCamera.getMaxZoom();
// Currently we use immediate zoom for fast zooming to get better UX and
// there is no plan to take advantage of the smooth zoom.
mZoomControl.setZoomMax(mZoomMax);
mZoomControl.setZoomIndex(DEFAULT_CAMERA_ZOOM_VALUE);
mZoomControl.setOnZoomChangeListener(new ZoomChangeListener());
}
/** Initialize camera parameters based on negotiated height, width */
private void initializeCameraParams() {
try {
// Get the parameter to make sure we have the up-to-date value.
ImsCamera imsCamera = mVideoCallManager.getImsCameraInstance();
// Set the camera preview size
if (mIsMediaLoopback) {
// In loopback mode the IMS is hard coded to render the
// camera frames of only the size 176x144 on the far end surface
imsCamera.setPreviewSize(LOOPBACK_MODE_WIDTH, LOOPBACK_MODE_HEIGHT);
} else {
log(
"Set Preview Size directly with negotiated Height = "
+ mVideoCallManager.getNegotiatedHeight()
+ " negotiated width= "
+ mVideoCallManager.getNegotiatedWidth());
imsCamera.setPreviewSize(
mVideoCallManager.getNegotiatedWidth(), mVideoCallManager.getNegotiatedHeight());
imsCamera.setPreviewFpsRange(mVideoCallManager.getNegotiatedFps());
}
} catch (RuntimeException e) {
loge("Error setting Camera preview size/fps exception=" + e);
}
}