| /* |
| * Copyright 2008 CoreMedia AG, Hamburg |
| * |
| * Licensed 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. |
| */ |
| |
| package com.coremedia.iso.boxes; |
| |
| |
| import com.coremedia.iso.IsoTypeReader; |
| import com.coremedia.iso.IsoTypeWriter; |
| import com.googlecode.mp4parser.AbstractFullBox; |
| |
| import java.nio.ByteBuffer; |
| |
| import static com.googlecode.mp4parser.util.CastUtils.l2i; |
| |
| /** |
| * This box containes the sample count and a table giving the size in bytes of each sample. |
| * Defined in ISO/IEC 14496-12. |
| */ |
| public class SampleSizeBox extends AbstractFullBox { |
| private long sampleSize; |
| private long[] sampleSizes = new long[0]; |
| public static final String TYPE = "stsz"; |
| int sampleCount; |
| |
| public SampleSizeBox() { |
| super(TYPE); |
| } |
| |
| /** |
| * Returns the field sample size. |
| * If sampleSize > 0 every sample has the same size. |
| * If sampleSize == 0 the samples have different size as stated in the sampleSizes field. |
| * |
| * @return the sampleSize field |
| */ |
| public long getSampleSize() { |
| return sampleSize; |
| } |
| |
| public void setSampleSize(long sampleSize) { |
| this.sampleSize = sampleSize; |
| } |
| |
| |
| public long getSampleSizeAtIndex(int index) { |
| if (sampleSize > 0) { |
| return sampleSize; |
| } else { |
| return sampleSizes[index]; |
| } |
| } |
| |
| public long getSampleCount() { |
| if (sampleSize > 0) { |
| return sampleCount; |
| } else { |
| return sampleSizes.length; |
| } |
| |
| } |
| |
| public long[] getSampleSizes() { |
| return sampleSizes; |
| } |
| |
| public void setSampleSizes(long[] sampleSizes) { |
| this.sampleSizes = sampleSizes; |
| } |
| |
| protected long getContentSize() { |
| return 12 + (sampleSize == 0 ? sampleSizes.length * 4 : 0); |
| } |
| |
| @Override |
| public void _parseDetails(ByteBuffer content) { |
| parseVersionAndFlags(content); |
| sampleSize = IsoTypeReader.readUInt32(content); |
| sampleCount = l2i(IsoTypeReader.readUInt32(content)); |
| |
| if (sampleSize == 0) { |
| sampleSizes = new long[(int) sampleCount]; |
| |
| for (int i = 0; i < sampleCount; i++) { |
| sampleSizes[i] = IsoTypeReader.readUInt32(content); |
| } |
| } |
| } |
| |
| @Override |
| protected void getContent(ByteBuffer byteBuffer) { |
| writeVersionAndFlags(byteBuffer); |
| IsoTypeWriter.writeUInt32(byteBuffer, sampleSize); |
| |
| if (sampleSize == 0) { |
| IsoTypeWriter.writeUInt32(byteBuffer, sampleSizes.length); |
| for (long sampleSize1 : sampleSizes) { |
| IsoTypeWriter.writeUInt32(byteBuffer, sampleSize1); |
| } |
| } else { |
| IsoTypeWriter.writeUInt32(byteBuffer, sampleCount); |
| } |
| |
| } |
| |
| public String toString() { |
| return "SampleSizeBox[sampleSize=" + getSampleSize() + ";sampleCount=" + getSampleCount() + "]"; |
| } |
| } |