1 package com.googlecode.mp4parser.boxes.piff; 2 3 import com.coremedia.iso.IsoTypeReader; 4 import com.coremedia.iso.IsoTypeWriter; 5 import com.googlecode.mp4parser.AbstractFullBox; 6 7 import java.nio.ByteBuffer; 8 import java.util.ArrayList; 9 import java.util.List; 10 11 /** 12 * The syntax of the fields defined in this section, specified in ABNF [RFC5234], is as follows: 13 * TfrfBox = TfrfBoxLength TfrfBoxType [TfrfBoxLongLength] TfrfBoxUUID TfrfBoxFields 14 * TfrfBoxChildren 15 * TfrfBoxType = "u" "u" "i" "d" 16 * TfrfBoxLength = BoxLength 17 * TfrfBoxLongLength = LongBoxLength 18 * TfrfBoxUUID = %xD4 %x80 %x7E %xF2 %xCA %x39 %x46 %x95 19 * %x8E %x54 %x26 %xCB %x9E %x46 %xA7 %x9F 20 * TfrfBoxFields = TfrfBoxVersion 21 * TfrfBoxFlags 22 * FragmentCount 23 * (1* TfrfBoxDataFields32) / (1* TfrfBoxDataFields64) 24 * TfrfBoxVersion = %x00 / %x01 25 * TfrfBoxFlags = 24*24 RESERVED_BIT 26 * FragmentCount = UINT8 27 * TfrfBoxDataFields32 = FragmentAbsoluteTime32 28 * FragmentDuration32 29 * TfrfBoxDataFields64 = FragmentAbsoluteTime64 30 * FragmentDuration64 31 * FragmentAbsoluteTime64 = UNSIGNED_INT32 32 * FragmentDuration64 = UNSIGNED_INT32 33 * FragmentAbsoluteTime64 = UNSIGNED_INT64 34 * FragmentDuration64 = UNSIGNED_INT64 35 * TfrfBoxChildren = *( VendorExtensionUUIDBox ) 36 */ 37 public class TfrfBox extends AbstractFullBox { 38 public List<Entry> entries = new ArrayList<Entry>(); 39 40 public TfrfBox() { 41 super("uuid"); 42 } 43 44 @Override 45 public byte[] getUserType() { 46 return new byte[]{(byte) 0xd4, (byte) 0x80, (byte) 0x7e, (byte) 0xf2, (byte) 0xca, (byte) 0x39, (byte) 0x46, 47 (byte) 0x95, (byte) 0x8e, (byte) 0x54, 0x26, (byte) 0xcb, (byte) 0x9e, (byte) 0x46, (byte) 0xa7, (byte) 0x9f}; 48 } 49 50 @Override 51 protected long getContentSize() { 52 return 5 + entries.size() * (getVersion() == 0x01 ? 16 : 8); 53 } 54 55 @Override 56 protected void getContent(ByteBuffer byteBuffer) { 57 writeVersionAndFlags(byteBuffer); 58 IsoTypeWriter.writeUInt8(byteBuffer, entries.size()); 59 60 for (Entry entry : entries) { 61 if (getVersion() == 0x01) { 62 IsoTypeWriter.writeUInt64(byteBuffer, entry.fragmentAbsoluteTime); 63 IsoTypeWriter.writeUInt64(byteBuffer, entry.fragmentAbsoluteDuration); 64 } else { 65 IsoTypeWriter.writeUInt32(byteBuffer, entry.fragmentAbsoluteTime); 66 IsoTypeWriter.writeUInt32(byteBuffer, entry.fragmentAbsoluteDuration); 67 } 68 } 69 } 70 71 @Override 72 public void _parseDetails(ByteBuffer content) { 73 parseVersionAndFlags(content); 74 int fragmentCount = IsoTypeReader.readUInt8(content); 75 76 for (int i = 0; i < fragmentCount; i++) { 77 Entry entry = new Entry(); 78 if (getVersion() == 0x01) { 79 entry.fragmentAbsoluteTime = IsoTypeReader.readUInt64(content); 80 entry.fragmentAbsoluteDuration = IsoTypeReader.readUInt64(content); 81 } else { 82 entry.fragmentAbsoluteTime = IsoTypeReader.readUInt32(content); 83 entry.fragmentAbsoluteDuration = IsoTypeReader.readUInt32(content); 84 } 85 entries.add(entry); 86 } 87 } 88 89 90 public long getFragmentCount() { 91 return entries.size(); 92 } 93 94 public List<Entry> getEntries() { 95 return entries; 96 } 97 98 @Override 99 public String toString() { 100 final StringBuilder sb = new StringBuilder(); 101 sb.append("TfrfBox"); 102 sb.append("{entries=").append(entries); 103 sb.append('}'); 104 return sb.toString(); 105 } 106 107 public class Entry { 108 long fragmentAbsoluteTime; 109 long fragmentAbsoluteDuration; 110 111 public long getFragmentAbsoluteTime() { 112 return fragmentAbsoluteTime; 113 } 114 115 public long getFragmentAbsoluteDuration() { 116 return fragmentAbsoluteDuration; 117 } 118 119 @Override 120 public String toString() { 121 final StringBuilder sb = new StringBuilder(); 122 sb.append("Entry"); 123 sb.append("{fragmentAbsoluteTime=").append(fragmentAbsoluteTime); 124 sb.append(", fragmentAbsoluteDuration=").append(fragmentAbsoluteDuration); 125 sb.append('}'); 126 return sb.toString(); 127 } 128 } 129 } 130
