1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 /** 18 * @author Rustem V. Rafikov 19 * @version $Revision: 1.3 $ 20 */ 21 22 package javax.imageio; 23 24 import javax.imageio.metadata.IIOMetadata; 25 import javax.imageio.ImageTypeSpecifier; 26 27 /** 28 * The ImageTranscoder interface is to be implemented by classes that perform 29 * image transcoding operations, that is, take images written in one format and 30 * write them in another format using read/write operations. Some image data can 31 * be lost in such processes. The ImageTranscoder interface converts metadata 32 * objects (IIOMetadata) of ImageReader to appropriate metadata object for 33 * ImageWriter. 34 * 35 * @since Android 1.0 36 */ 37 public interface ImageTranscoder { 38 39 /** 40 * Converts the specified IIOMetadata object using the specified 41 * ImageWriteParam for obtaining writer's metadata structure. 42 * 43 * @param inData 44 * the IIOMetadata. 45 * @param param 46 * the ImageWriteParam. 47 * @return the IIOMetadata, or null. 48 */ convertStreamMetadata(IIOMetadata inData, ImageWriteParam param)49 IIOMetadata convertStreamMetadata(IIOMetadata inData, ImageWriteParam param); 50 51 /** 52 * Converts the specified IIOMetadata object using the specified 53 * ImageWriteParam for obtaining writer's metadata structure and 54 * ImageTypeSpecifier object for obtaining the layout and color information 55 * of the image for this metadata. 56 * 57 * @param inData 58 * the IIOMetadata. 59 * @param imageType 60 * the ImageTypeSpecifier. 61 * @param param 62 * the ImageWriteParam. 63 * @return the IIOMetadata, or null. 64 */ convertImageMetadata(IIOMetadata inData, ImageTypeSpecifier imageType, ImageWriteParam param)65 IIOMetadata convertImageMetadata(IIOMetadata inData, ImageTypeSpecifier imageType, 66 ImageWriteParam param); 67 } 68