ImageEncoder.java revision 30ab3fc173709a491c9e2e103f53fb7c0d1b96b7
130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni/* 230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * Copyright (C) 2011 The Android Open Source Project 330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * 430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * Licensed under the Apache License, Version 2.0 (the "License"); 530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * you may not use this file except in compliance with the License. 630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * You may obtain a copy of the License at 730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * 830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * http://www.apache.org/licenses/LICENSE-2.0 930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * 1030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * Unless required by applicable law or agreed to in writing, software 1130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * distributed under the License is distributed on an "AS IS" BASIS, 1230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * See the License for the specific language governing permissions and 1430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * limitations under the License. 1530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni */ 1630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 1730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 1830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceronipackage android.filterpacks.imageproc; 1930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 2030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.content.Context; 2130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.filterfw.core.Filter; 2230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.filterfw.core.FilterEnvironment; 2330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.filterfw.core.FilterParameter; 2430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.filterfw.core.Frame; 2530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.filterfw.core.FrameFormat; 2630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.filterfw.core.KeyValueMap; 2730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 2830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.graphics.Bitmap; 2930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.graphics.Bitmap.CompressFormat; 3030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 3130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.util.Log; 3230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 3330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport java.io.FileOutputStream; 3430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport java.io.BufferedOutputStream; 3530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport java.io.FileNotFoundException; 3630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport java.io.IOException; 3730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 3830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceronipublic class ImageEncoder extends Filter { 3930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 4030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni @FilterParameter(name = "fileName", isOptional = false) 4130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni private String mOutputName; 4230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 4330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni @FilterParameter(name = "context", isOptional = false) 4430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni private Context mContext; 4530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 4630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni public ImageEncoder(String name) { 4730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni super(name); 4830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni } 4930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 5030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni public String[] getInputNames() { 5130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni return new String[] { "image" }; 5230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni } 5330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 5430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni public String[] getOutputNames() { 5530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni return null; 5630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni } 5730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 5830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni public boolean setInputFormat(int index, FrameFormat format) { 5930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni return format.getBaseType() == FrameFormat.TYPE_BYTE; 6030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni } 6130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 6230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni public FrameFormat getFormatForOutput(int index) { 6330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni return null; 6430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni } 6530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 6630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni public int process(FilterEnvironment env) { 6730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni Frame input = pullInput(0); 6830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni Bitmap bitmap = input.getBitmap(); 6930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni FileOutputStream outStream = null; 7030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 7130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni try { 7230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni outStream = mContext.openFileOutput(mOutputName, Context.MODE_PRIVATE); 7330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni } catch (FileNotFoundException exception) { 7430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni throw new RuntimeException("ImageEncoder: Could not open file: " + mOutputName + "!"); 7530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni } 7630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 7730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni BufferedOutputStream bufferedStream = new BufferedOutputStream(outStream); 7830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni bitmap.compress(CompressFormat.JPEG, 80, bufferedStream); 7930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 8030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni try { 8130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni bufferedStream.flush(); 8230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni bufferedStream.close(); 8330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni } catch (IOException exception) { 8430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni throw new RuntimeException("ImageEncoder: Could not write to file: " + 8530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni mOutputName + "!"); 8630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni } 8730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 8830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni return Filter.STATUS_WAIT_FOR_ALL_INPUTS; 8930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni } 9030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 9130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni} 92