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A generic parser and writer for all ISO 14496 based files (MP4, Quicktime, DCF, PDCF, ...)

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package com.googlecode.mp4parser.boxes.piff;

import com.coremedia.iso.IsoTypeReader;
import com.coremedia.iso.IsoTypeWriter;
import com.googlecode.mp4parser.AbstractFullBox;
import com.googlecode.mp4parser.util.UUIDConverter;

import java.nio.ByteBuffer;
import java.util.UUID;

import static com.googlecode.mp4parser.util.CastUtils.l2i;

/**
 * 

4cc = "uuid", d08a4f18-10f3-4a82-b6c8-32d8aba183d3

* aligned(8) class UuidBasedProtectionSystemSpecificHeaderBox extends FullBox(‘uuid’, * extended_type=0xd08a4f18-10f3-4a82-b6c8-32d8aba183d3, * version=0, flags=0) * { * unsigned int(8)[16] SystemID; * unsigned int(32) DataSize; * unsigned int(8)[DataSize] Data; * } */ public class UuidBasedProtectionSystemSpecificHeaderBox extends AbstractFullBox { public static byte[] USER_TYPE = new byte[]{(byte) 0xd0, (byte) 0x8a, 0x4f, 0x18, 0x10, (byte) 0xf3, 0x4a, (byte) 0x82, (byte) 0xb6, (byte) 0xc8, 0x32, (byte) 0xd8, (byte) 0xab, (byte) 0xa1, (byte) 0x83, (byte) 0xd3}; UUID systemId; ProtectionSpecificHeader protectionSpecificHeader; public UuidBasedProtectionSystemSpecificHeaderBox() { super("uuid", USER_TYPE); } @Override protected long getContentSize() { return 24 + protectionSpecificHeader.getData().limit(); } @Override public byte[] getUserType() { return USER_TYPE; } @Override protected void getContent(ByteBuffer byteBuffer) { writeVersionAndFlags(byteBuffer); IsoTypeWriter.writeUInt64(byteBuffer, systemId.getMostSignificantBits()); IsoTypeWriter.writeUInt64(byteBuffer, systemId.getLeastSignificantBits()); ByteBuffer data = protectionSpecificHeader.getData(); data.rewind(); IsoTypeWriter.writeUInt32(byteBuffer, data.limit()); byteBuffer.put(data); } @Override protected void _parseDetails(ByteBuffer content) { parseVersionAndFlags(content); byte[] systemIdBytes = new byte[16]; content.get(systemIdBytes); systemId = UUIDConverter.convert(systemIdBytes); int dataSize = l2i(IsoTypeReader.readUInt32(content)); protectionSpecificHeader = ProtectionSpecificHeader.createFor(systemId, content); } public UUID getSystemId() { return systemId; } public void setSystemId(UUID systemId) { this.systemId = systemId; } public String getSystemIdString() { return systemId.toString(); } public ProtectionSpecificHeader getProtectionSpecificHeader() { return protectionSpecificHeader; } public String getProtectionSpecificHeaderString() { return protectionSpecificHeader.toString(); } public void setProtectionSpecificHeader(ProtectionSpecificHeader protectionSpecificHeader) { this.protectionSpecificHeader = protectionSpecificHeader; } @Override public String toString() { final StringBuilder sb = new StringBuilder(); sb.append("UuidBasedProtectionSystemSpecificHeaderBox"); sb.append("{systemId=").append(systemId.toString()); sb.append(", dataSize=").append(protectionSpecificHeader.getData().limit()); sb.append('}'); return sb.toString(); } }




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