1dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu/* 2dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * Copyright 2008 CoreMedia AG, Hamburg 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.coremedia.iso.boxes; 18dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 19dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhuimport com.googlecode.mp4parser.AbstractContainerBox; 20dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 21dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu/** 22dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * The sample table contains all the time and data indexing of the media samples in a track. Using the tables 23dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * here, it is possible to locate samples in time, determine their type (e.g. I-frame or not), and determine their 24dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * size, container, and offset into that container. <br> 25dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * If the track that contains the Sample Table Box references no data, then the Sample Table Box does not need 26dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * to contain any sub-boxes (this is not a very useful media track). <br> 27dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * If the track that the Sample Table Box is contained in does reference data, then the following sub-boxes are 28dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * required: Sample Description, Sample Size, Sample To Chunk, and Chunk Offset. Further, the Sample 29dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * Description Box shall contain at least one entry. A Sample Description Box is required because it contains the 30dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * data reference index field which indicates which Data Reference Box to use to retrieve the media samples. 31dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * Without the Sample Description, it is not possible to determine where the media samples are stored. The Sync 32dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * Sample Box is optional. If the Sync Sample Box is not present, all samples are sync samples.<br> 33dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * Annex A provides a narrative description of random access using the structures defined in the Sample Table 34dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu * Box. 35dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu */ 36dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhupublic class SampleTableBox extends AbstractContainerBox { 37dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public static final String TYPE = "stbl"; 38dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 39dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public SampleTableBox() { 40dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu super(TYPE); 41dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 42dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 43dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public SampleDescriptionBox getSampleDescriptionBox() { 44dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu for (Box box : boxes) { 45dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu if (box instanceof SampleDescriptionBox) { 46dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return (SampleDescriptionBox) box; 47dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 48dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 49dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return null; 50dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 51dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 52dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public SampleSizeBox getSampleSizeBox() { 53dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu for (Box box : boxes) { 54dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu if (box instanceof SampleSizeBox) { 55dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return (SampleSizeBox) box; 56dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 57dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 58dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return null; 59dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 60dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 61dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public SampleToChunkBox getSampleToChunkBox() { 62dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu for (Box box : boxes) { 63dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu if (box instanceof SampleToChunkBox) { 64dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return (SampleToChunkBox) box; 65dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 66dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 67dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return null; 68dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 69dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 70dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public ChunkOffsetBox getChunkOffsetBox() { 71dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu for (Box box : boxes) { 72dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu if (box instanceof ChunkOffsetBox) { 73dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return (ChunkOffsetBox) box; 74dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 75dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 76dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return null; 77dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 78dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 79dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public void setChunkOffsetBox(ChunkOffsetBox b) { 80dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu for (int i = 0; i < boxes.size(); i++) { 81dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu Box box = boxes.get(i); 82dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu if (box instanceof ChunkOffsetBox) { 83dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu boxes.set(i, b); 84dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 85dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 86dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 87dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 88dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public TimeToSampleBox getTimeToSampleBox() { 89dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu for (Box box : boxes) { 90dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu if (box instanceof TimeToSampleBox) { 91dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return (TimeToSampleBox) box; 92dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 93dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 94dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return null; 95dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 96dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 97dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public SyncSampleBox getSyncSampleBox() { 98dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu for (Box box : boxes) { 99dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu if (box instanceof SyncSampleBox) { 100dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return (SyncSampleBox) box; 101dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 102dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 103dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return null; 104dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 105dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 106dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public CompositionTimeToSample getCompositionTimeToSample() { 107dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu for (Box box : boxes) { 108dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu if (box instanceof CompositionTimeToSample) { 109dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return (CompositionTimeToSample) box; 110dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 111dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 112dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return null; 113dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 114dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 115dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu public SampleDependencyTypeBox getSampleDependencyTypeBox() { 116dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu for (Box box : boxes) { 117dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu if (box instanceof SampleDependencyTypeBox) { 118dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return (SampleDependencyTypeBox) box; 119dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 120dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 121dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu return null; 122dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu } 123dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu 124dd9eb897ee7c7b507cbdcf80263bb4b5de6966bfTeng-Hui Zhu} 125