1dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu/* 2dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * Copyright 2011 castLabs, Berlin 3dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * 4dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * Licensed under the Apache License, Version 2.0 (the License); 5dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * you may not use this file except in compliance with the License. 6dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * You may obtain a copy of the License at 7dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * 8dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * http://www.apache.org/licenses/LICENSE-2.0 9dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * 10dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * Unless required by applicable law or agreed to in writing, software 11dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * distributed under the License is distributed on an AS IS BASIS, 12dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * See the License for the specific language governing permissions and 14dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * limitations under the License. 15dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu */ 16dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 17dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhupackage com.googlecode.mp4parser.boxes.mp4; 18dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 19dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhuimport com.googlecode.mp4parser.AbstractFullBox; 20dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhuimport com.googlecode.mp4parser.boxes.mp4.objectdescriptors.BaseDescriptor; 21dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhuimport com.googlecode.mp4parser.boxes.mp4.objectdescriptors.ObjectDescriptorFactory; 22dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 23dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhuimport java.io.IOException; 24dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhuimport java.nio.ByteBuffer; 25dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhuimport java.util.logging.Level; 26dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhuimport java.util.logging.Logger; 27dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 28dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu/** 29dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * ES Descriptor Box. 30dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu */ 31dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhupublic class AbstractDescriptorBox extends AbstractFullBox { 32dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu private static Logger log = Logger.getLogger(AbstractDescriptorBox.class.getName()); 33dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 34dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 35dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public BaseDescriptor descriptor; 36dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public ByteBuffer data; 37dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 38dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public AbstractDescriptorBox(String type) { 39dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu super(type); 40dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 41dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 42dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu @Override 43dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu protected void getContent(ByteBuffer byteBuffer) { 44dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu writeVersionAndFlags(byteBuffer); 45dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu data.rewind(); // has been fforwarded by parsing 46dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu byteBuffer.put(data); 47dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 48dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 49dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu @Override 50dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu protected long getContentSize() { 51dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return 4 + data.limit(); 52dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 53dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 54dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public BaseDescriptor getDescriptor() { 55dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return descriptor; 56dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 57dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 58dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public String getDescriptorAsString() { 59dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return descriptor.toString(); 60dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 61dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 62dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public void setData(ByteBuffer data) { 63dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu this.data = data; 64dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 65dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 66dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu @Override 67dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public void _parseDetails(ByteBuffer content) { 68dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu parseVersionAndFlags(content); 69dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu data = content.slice(); 70dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu content.position(content.position() + content.remaining()); 71dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu try { 72dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu data.rewind(); 73dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu descriptor = ObjectDescriptorFactory.createFrom(-1, data); 74dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } catch (IOException e) { 75dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu log.log(Level.WARNING, "Error parsing ObjectDescriptor", e); 76dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu //that's why we copied it ;) 77dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } catch (IndexOutOfBoundsException e) { 78dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu log.log(Level.WARNING, "Error parsing ObjectDescriptor", e); 79dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu //that's why we copied it ;) 80dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 81dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 82dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 83dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 84dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu} 85