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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @author Rustem V. Rafikov
* @version $Revision: 1.3 $
*/
package javax.imageio;
import javax.imageio.metadata.IIOMetadata;
import javax.imageio.ImageTypeSpecifier;
/**
* The ImageTranscoder interface is to be implemented by classes that
* perform image transcoding operations, that is, take images written
* in one format and write them in another format using
* read/write operations. Some image data can be lost in such processes.
* The ImageTranscoder interface converts metadata objects (IIOMetadata)
* of ImageReader to apropriate metadata object for ImageWriter.
*/
public interface ImageTranscoder {
/**
* Converts the specified IIOMetadata object using the specified
* ImageWriteParam for obtaining writer's metadata structure.
*
* @param inData the IIOMetadata.
* @param param the ImageWriteParam.
*
* @return the IIOMetadata, or null.
*/
IIOMetadata convertStreamMetadata(IIOMetadata inData, ImageWriteParam param);
/**
* Converts the specified IIOMetadata object using the specified
* ImageWriteParam for obtaining writer's metadata structure
* and ImageTypeSpecifier object for obtaining the layout and
* color information of the image for this metadata.
*
* @param inData the IIOMetadata.
* @param imageType the ImageTypeSpecifier.
* @param param the ImageWriteParam.
*
* @return the IIOMetadata, or null.
*/
IIOMetadata convertImageMetadata(IIOMetadata inData, ImageTypeSpecifier imageType, ImageWriteParam param);
}
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