165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn/* 265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Copyright (C) 2011 The Android Open Source Project 365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Licensed under the Apache License, Version 2.0 (the "License"); 565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * you may not use this file except in compliance with the License. 665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * You may obtain a copy of the License at 765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * http://www.apache.org/licenses/LICENSE-2.0 965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 1065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Unless required by applicable law or agreed to in writing, software 1165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * distributed under the License is distributed on an "AS IS" BASIS, 1265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * See the License for the specific language governing permissions and 1465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * limitations under the License. 1565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn */ 1665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 1765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 1865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpackage android.filterpacks.base; 1965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.Filter; 2165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.FilterContext; 2265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.Frame; 2365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.FrameFormat; 2465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.GenerateFieldPort; 2565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.GenerateFinalPort; 2665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.KeyValueMap; 2765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.NativeProgram; 2865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.NativeFrame; 2965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.Program; 3065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.os.Handler; 3165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.os.Looper; 3265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport java.lang.Runnable; 3465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn/** 3665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * @hide 3765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn */ 3865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpublic class CallbackFilter extends Filter { 3965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFieldPort(name = "listener", hasDefault = true) 4165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private FilterContext.OnFrameReceivedListener mListener; 4265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFieldPort(name = "userData", hasDefault = true) 4465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private Object mUserData; 4565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFinalPort(name = "callUiThread", hasDefault = true) 4765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private boolean mCallbacksOnUiThread = true; 4865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private Handler mUiThreadHandler; 5065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private class CallbackRunnable implements Runnable { 5265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private Filter mFilter; 5365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private Frame mFrame; 5465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private Object mUserData; 5565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private FilterContext.OnFrameReceivedListener mListener; 5665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public CallbackRunnable(FilterContext.OnFrameReceivedListener listener, Filter filter, Frame frame, Object userData) { 5865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mListener = listener; 5965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mFilter = filter; 6065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mFrame = frame; 6165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mUserData = userData; 6265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void run() { 6565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mListener.onFrameReceived(mFilter, mFrame, mUserData); 6665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mFrame.release(); 6765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public CallbackFilter(String name) { 7165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn super(name); 7265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 7365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 7565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void setupPorts() { 7665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn addInputPort("frame"); 7765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 7865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void prepare(FilterContext context) { 8065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mCallbacksOnUiThread) { 8165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mUiThreadHandler = new Handler(Looper.getMainLooper()); 8265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void process(FilterContext context) { 8665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Get frame and forward to listener 8765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn final Frame input = pullInput("frame"); 8865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mListener != null) { 8965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mCallbacksOnUiThread) { 9065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn input.retain(); 9165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn CallbackRunnable uiRunnable = new CallbackRunnable(mListener, this, input, mUserData); 9265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (!mUiThreadHandler.post(uiRunnable)) { 9365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn throw new RuntimeException("Unable to send callback to UI thread!"); 9465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 9565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } else { 9665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mListener.onFrameReceived(this, input, mUserData); 9765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 9865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } else { 9965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn throw new RuntimeException("CallbackFilter received frame, but no listener set!"); 10065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 10165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 10265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 10365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn} 104