text: // Copyright (c) 2012 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #ifndef MEDIA_WEBM_WEBM_CONSTANTS_H_
  #define MEDIA_WEBM_WEBM_CONSTANTS_H_
  
  #include "base/basictypes.h"
  #include "media/base/media_export.h"
  
  namespace media {
  
  // WebM element IDs.
  // This is a subset of the IDs in the Matroska spec.
  // http://www.matroska.org/technical/specs/index.html
  const int kWebMIdAESSettingsCipherMode = 0x47E8;
  const int kWebMIdAlphaMode = 0x53C0;
  const int kWebMIdAspectRatioType = 0x54B3;
  const int kWebMIdAttachedFile = 0x61A7;
  const int kWebMIdAttachmentLink = 0x7446;
  const int kWebMIdAttachments = 0x1941A469;
  const int kWebMIdAudio = 0xE1;
  const int kWebMIdBitDepth = 0x6264;
  const int kWebMIdBlock = 0xA1;
  const int kWebMIdBlockAddID = 0xEE;
  const int kWebMIdBlockAdditions = 0x75A1;
  const int kWebMIdBlockAdditional = 0xA5;
  const int kWebMIdBlockDuration = 0x9B;
  const int kWebMIdBlockGroup = 0xA0;
  const int kWebMIdBlockMore = 0xA6;
  const int kWebMIdChannels = 0x9F;
  const int kWebMIdChapCountry = 0x437E;
  const int kWebMIdChapLanguage = 0x437C;
  const int kWebMIdChapProcess = 0x6944;
  const int kWebMIdChapProcessCodecID = 0x6955;
  const int kWebMIdChapProcessCommand = 0x6911;
  const int kWebMIdChapProcessData = 0x6933;
  const int kWebMIdChapProcessPrivate = 0x450D;
  const int kWebMIdChapProcessTime = 0x6922;
  const int kWebMIdChapString = 0x85;
  const int kWebMIdChapterAtom = 0xB6;
  const int kWebMIdChapterDisplay = 0x80;
  const int kWebMIdChapterFlagEnabled = 0x4598;
  const int kWebMIdChapterFlagHidden = 0x98;
  const int kWebMIdChapterPhysicalEquiv = 0x63C3;
  const int kWebMIdChapters = 0x1043A770;
  const int kWebMIdChapterSegmentEditionUID = 0x6EBC;
  const int kWebMIdChapterSegmentUID = 0x6E67;
  const int kWebMIdChapterTimeEnd = 0x92;
  const int kWebMIdChapterTimeStart = 0x91;
  const int kWebMIdChapterTrack = 0x8F;
  const int kWebMIdChapterTrackNumber = 0x89;
  const int kWebMIdChapterTranslate = 0x6924;
  const int kWebMIdChapterTranslateCodec = 0x69BF;
  const int kWebMIdChapterTranslateEditionUID = 0x69FC;
  const int kWebMIdChapterTranslateID = 0x69A5;
  const int kWebMIdChapterUID = 0x73C4;
  const int kWebMIdCluster = 0x1F43B675;
  const int kWebMIdCodecDecodeAll = 0xAA;
  const int kWebMIdCodecID = 0x86;
  const int kWebMIdCodecName = 0x258688;
  const int kWebMIdCodecPrivate = 0x63A2;
  const int kWebMIdCodecState = 0xA4;
  const int kWebMIdColorSpace = 0x2EB524;
  const int kWebMIdContentCompAlgo = 0x4254;
  const int kWebMIdContentCompression = 0x5034;
  const int kWebMIdContentCompSettings = 0x4255;
  const int kWebMIdContentEncAESSettings = 0x47E7;
  const int kWebMIdContentEncAlgo = 0x47E1;
  const int kWebMIdContentEncKeyID = 0x47E2;
  const int kWebMIdContentEncoding = 0x6240;
  const int kWebMIdContentEncodingOrder = 0x5031;
  const int kWebMIdContentEncodings = 0x6D80;
  const int kWebMIdContentEncodingScope = 0x5032;
  const int kWebMIdContentEncodingType = 0x5033;
  const int kWebMIdContentEncryption = 0x5035;
  const int kWebMIdContentSigAlgo = 0x47E5;
  const int kWebMIdContentSigHashAlgo = 0x47E6;
  const int kWebMIdContentSigKeyID = 0x47E4;
  const int kWebMIdContentSignature = 0x47E3;
  const int kWebMIdCRC32 = 0xBF;
  const int kWebMIdCueBlockNumber = 0x5378;
  const int kWebMIdCueClusterPosition = 0xF1;
  const int kWebMIdCueCodecState = 0xEA;
  const int kWebMIdCuePoint = 0xBB;
  const int kWebMIdCueReference = 0xDB;
  const int kWebMIdCueRefTime = 0x96;
  const int kWebMIdCues = 0x1C53BB6B;
  const int kWebMIdCueTime = 0xB3;
  const int kWebMIdCueTrack = 0xF7;
  const int kWebMIdCueTrackPositions = 0xB7;
  const int kWebMIdDateUTC = 0x4461;
  const int kWebMIdDefaultDuration = 0x23E383;
  const int kWebMIdDisplayHeight = 0x54BA;
  const int kWebMIdDisplayUnit = 0x54B2;
  const int kWebMIdDisplayWidth = 0x54B0;
  const int kWebMIdDocType = 0x4282;
  const int kWebMIdDocTypeReadVersion = 0x4285;
  const int kWebMIdDocTypeVersion = 0x4287;
  const int kWebMIdDuration = 0x4489;
  const int kWebMIdEBMLHeader = 0x1A45DFA3;
  const int kWebMIdEBMLMaxIDLength = 0x42F2;
  const int kWebMIdEBMLMaxSizeLength = 0x42F3;
  const int kWebMIdEBMLReadVersion = 0x42F7;
  const int kWebMIdEBMLVersion = 0x4286;
  const int kWebMIdEditionEntry = 0x45B9;
  const int kWebMIdEditionFlagDefault = 0x45DB;
  const int kWebMIdEditionFlagHidden = 0x45BD;
  const int kWebMIdEditionFlagOrdered = 0x45DD;
  const int kWebMIdEditionUID = 0x45BC;
  const int kWebMIdFileData = 0x465C;
  const int kWebMIdFileDescription = 0x467E;
  const int kWebMIdFileMimeType = 0x4660;
  const int kWebMIdFileName = 0x466E;
  const int kWebMIdFileUID = 0x46AE;
  const int kWebMIdFlagDefault = 0x88;
  const int kWebMIdFlagEnabled = 0xB9;
  const int kWebMIdFlagForced = 0x55AA;
  const int kWebMIdFlagInterlaced = 0x9A;
  const int kWebMIdFlagLacing = 0x9C;
  const int kWebMIdInfo = 0x1549A966;
  const int kWebMIdJoinBlocks = 0xE9;
  const int kWebMIdLaceNumber = 0xCC;
  const int kWebMIdLanguage = 0x22B59C;
  const int kWebMIdMaxBlockAdditionId = 0x55EE;
  const int kWebMIdMaxCache = 0x6DF8;
  const int kWebMIdMinCache = 0x6DE7;
  const int kWebMIdMuxingApp = 0x4D80;
  const int kWebMIdName = 0x536E;
  const int kWebMIdNextFilename = 0x3E83BB;
  const int kWebMIdNextUID = 0x3EB923;
  const int kWebMIdOutputSamplingFrequency = 0x78B5;
  const int kWebMIdPixelCropBottom = 0x54AA;
  const int kWebMIdPixelCropLeft = 0x54CC;
  const int kWebMIdPixelCropRight = 0x54DD;
  const int kWebMIdPixelCropTop = 0x54BB;
  const int kWebMIdPixelHeight = 0xBA;
  const int kWebMIdPixelWidth = 0xB0;
  const int kWebMIdPosition = 0xA7;
  const int kWebMIdPrevFilename = 0x3C83AB;
  const int kWebMIdPrevSize = 0xAB;
  const int kWebMIdPrevUID = 0x3CB923;
  const int kWebMIdReferenceBlock = 0xFB;
  const int kWebMIdReferencePriority = 0xFA;
  const int kWebMIdSamplingFrequency = 0xB5;
  const int kWebMIdSeek = 0x4DBB;
  const int kWebMIdSeekHead = 0x114D9B74;
  const int kWebMIdSeekID = 0x53AB;
  const int kWebMIdSeekPosition = 0x53AC;
  const int kWebMIdSegment = 0x18538067;
  const int kWebMIdSegmentFamily = 0x4444;
  const int kWebMIdSegmentFilename = 0x7384;
  const int kWebMIdSegmentUID = 0x73A4;
  const int kWebMIdSilentTrackNumber = 0x58D7;
  const int kWebMIdSilentTracks = 0x5854;
  const int kWebMIdSimpleBlock = 0xA3;
  const int kWebMIdSimpleTag = 0x67C8;
  const int kWebMIdSlices = 0x8E;
  const int kWebMIdStereoMode = 0x53B8;
  const int kWebMIdTag = 0x7373;
  const int kWebMIdTagAttachmentUID = 0x63C6;
  const int kWebMIdTagBinary = 0x4485;
  const int kWebMIdTagChapterUID = 0x63C4;
  const int kWebMIdTagDefault = 0x4484;
  const int kWebMIdTagEditionUID = 0x63C9;
  const int kWebMIdTagLanguage = 0x447A;
  const int kWebMIdTagName = 0x45A3;
  const int kWebMIdTags = 0x1254C367;
  const int kWebMIdTagString = 0x4487;
  const int kWebMIdTagTrackUID = 0x63C5;
  const int kWebMIdTargets = 0x63C0;
  const int kWebMIdTargetType = 0x63CA;
  const int kWebMIdTargetTypeValue = 0x68CA;
  const int kWebMIdTimecode = 0xE7;
  const int kWebMIdTimecodeScale = 0x2AD7B1;
  const int kWebMIdTimeSlice = 0xE8;
  const int kWebMIdTitle = 0x7BA9;
  const int kWebMIdTrackCombinePlanes = 0xE3;
  const int kWebMIdTrackEntry = 0xAE;
  const int kWebMIdTrackJoinUID = 0xED;
  const int kWebMIdTrackNumber = 0xD7;
  const int kWebMIdTrackOperation = 0xE2;
  const int kWebMIdTrackOverlay = 0x6FAB;
  const int kWebMIdTrackPlane = 0xE4;
  const int kWebMIdTrackPlaneType = 0xE6;
  const int kWebMIdTrackPlaneUID = 0xE5;
  const int kWebMIdTracks = 0x1654AE6B;
  const int kWebMIdTrackTimecodeScale = 0x23314F;
  const int kWebMIdTrackTranslate = 0x6624;
  const int kWebMIdTrackTranslateCodec = 0x66BF;
  const int kWebMIdTrackTranslateEditionUID = 0x66FC;
  const int kWebMIdTrackTranslateTrackID = 0x66A5;
  const int kWebMIdTrackType = 0x83;
  const int kWebMIdTrackUID = 0x73C5;
  const int kWebMIdVideo = 0xE0;
  const int kWebMIdVoid = 0xEC;
  const int kWebMIdWritingApp = 0x5741;
  
  const int64 kWebMReservedId = 0x1FFFFFFF;
  const int64 kWebMUnknownSize = GG_LONGLONG(0x00FFFFFFFFFFFFFF);
  
  const uint8 kWebMFlagKeyframe = 0x80;
  
  // Current encrypted WebM request for comments specification is here
  // http://wiki.webmproject.org/encryption/webm-encryption-rfc
  const uint8 kWebMFlagEncryptedFrame = 0x1;
  const int kWebMIvSize = 8;
  const int kWebMSignalByteSize = 1;
  
  // Current specification for WebVTT embedded in WebM
  // http://wiki.webmproject.org/webm-metadata/temporal-metadata/webvtt-in-webm
  
  const int kWebMTrackTypeVideo = 1;
  const int kWebMTrackTypeAudio = 2;
  const int kWebMTrackTypeSubtitlesOrCaptions = 0x11;
  const int kWebMTrackTypeDescriptionsOrMetadata = 0x21;
  
  MEDIA_EXPORT extern const char kWebMCodecSubtitles[];
  MEDIA_EXPORT extern const char kWebMCodecCaptions[];
  MEDIA_EXPORT extern const char kWebMCodecDescriptions[];
  MEDIA_EXPORT extern const char kWebMCodecMetadata[];
  
  }  // namespace media
  
  #endif  // MEDIA_WEBM_WEBM_CONSTANTS_H_
  