## RIFF Tags

Windows WAV and AVI files are RIFF format files. According to the EXIF specification, Meta information is embedded in two types of RIFF `LIST` chunks: `INFO` and `exif`, and information about the audio content is stored in the `fmt` chunk. As well as this information, some video information and proprietary manufacturer-specific information is also extracted.

> Tag ID | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 'JUNK' | OlympusJunk CasioJunk RicohJunk UnknownJunk | - - - N | --> Olympus AVI Tags --> EXIF Tags --> Ricoh AVI Tags
> 'LIST_INFO' | Info | - | --> RIFF Info Tags
> 'LIST_exif' | Exif | - | --> RIFF Exif Tags
> 'LIST_hdrl' | Hdrl | - | --> RIFF Hdrl Tags
> 'fmt ' | AudioFormat | - | --> RIFF AudioFormat Tags

## RIFF Info Tags

> Tag ID | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 'IARL' | ArchivalLocation | N |
> 'IART' | Artist | N |
> 'ICMS' | Commissioned | N |
> 'ICMT' | Comment | N |
> 'ICOP' | Copyright | N |
> 'ICRD' | DateCreated | N |
> 'ICRP' | Cropped | N |
> 'IDIM' | Dimensions | N |
> 'IDPI' | DotsPerInch | N |
> 'IENG' | Engineer | N |
> 'IGNR' | Genre | N |
> 'IKEY' | Keywords | N |
> 'ILGT' | Lightness | N |
> 'IMED' | Medium | N |
> 'INAM' | Title | N |
> 'IPLT' | NumColors | N |
> 'IPRD' | Product | N |
> 'ISBJ' | Subject | N |
> 'ISFT' | Software | N |
> 'ISHP' | Sharpness | N |
> 'ISRC' | Source | N |
> 'ISRF' | SourceForm | N |
> 'ITCH' | Technician | N |

## RIFF Exif Tags

> Tag ID | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 'ecor' | Make | N |
> 'emdl' | Model | N |
> 'emnt' | MakerNotes | N |
> 'erel' | RelatedImageFile | N |
> 'etim' | TimeCreated | N |
> 'eucm' | UserComment | N |
> 'ever' | ExifVersion | N |

## RIFF Hdrl Tags

> Tag ID | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 'IDIT' | DateTimeOriginal | N |
> 'ISMP' | TimeCode | N |
> 'LIST_strl' | Stream | - | --> RIFF Stream Tags
> 'avih' | AVIHeader | - | --> RIFF AVIHeader Tags

## RIFF Stream Tags

> Tag ID | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 'strd' | StreamData | - | --> RIFF StreamData Tags
> 'strf' | AudioFormat VideoFormat | - - | --> RIFF AudioFormat Tags --> BMP Tags
> 'strh' | StreamHeader | - | --> RIFF StreamHeader Tags
> 'strn' | StreamName | N |

## RIFF StreamData Tags

This chunk contains EXIF information in FujiFilm AVI videos.

> Tag ID | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 'AVIF' | AVIF | - | --> EXIF Tags
> 'CASI' | CasioData | - | --> Casio AVI Tags
> 'unknown' | UnknownData | N |

## RIFF AudioFormat Tags

> Index | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0 | Encoding | N | --> RIFF AudioEncoding Values
> 1 | NumChannels | N |
> 2 | SampleRate | N |
> 4 | AvgBytesPerSec | N |
> 7 | BitsPerSample | N |

## RIFF AudioEncoding Values

These "TwoCC" audio encoding codes are used in RIFF and ASF files.

> Value | AudioEncoding
> --- | ---
> 0x1 | = Microsoft PCM
> 0x2 | = Microsoft ADPCM
> 0x3 | = Microsoft IEEE float
> 0x4 | = Compaq VSELP
> 0x5 | = IBM CVSD
> 0x6 | = Microsoft a-Law
> 0x7 | = Microsoft u-Law
> 0x8 | = Microsoft DTS
> 0x9 | = DRM
> 0xa | = WMA 9 Speech
> 0xb | = Microsoft Windows Media RT Voice
> 0x10 | = OKI-ADPCM
> 0x11 | = Intel IMA/DVI-ADPCM
> 0x12 | = Videologic Mediaspace ADPCM
> 0x13 | = Sierra ADPCM
> 0x14 | = Antex G.723 ADPCM
> 0x15 | = DSP Solutions DIGISTD
> 0x16 | = DSP Solutions DIGIFIX
> 0x17 | = Dialoic OKI ADPCM
> 0x18 | = Media Vision ADPCM
> 0x19 | = HP CU
> 0x1a | = HP Dynamic Voice
> 0x20 | = Yamaha ADPCM
> 0x21 | = SONARC Speech Compression
> 0x22 | = DSP Group True Speech
> 0x23 | = Echo Speech Corp.
> 0x24 | = Virtual Music Audiofile AF36
> 0x25 | = Audio Processing Tech.
> 0x26 | = Virtual Music Audiofile AF10
> 0x27 | = Aculab Prosody 1612
> 0x28 | = Merging Tech. LRC
> 0x30 | = Dolby AC2
> 0x31 | = Microsoft GSM610
> 0x32 | = MSN Audio
> 0x33 | = Antex ADPCME
> 0x34 | = Control Resources VQLPC
> 0x35 | = DSP Solutions DIGIREAL
> 0x36 | = DSP Solutions DIGIADPCM
> 0x37 | = Control Resources CR10
> 0x38 | = Natural MicroSystems VBX ADPCM
> 0x39 | = Crystal Semiconductor IMA ADPCM
> 0x3a | = Echo Speech ECHOSC3
> 0x3b | = Rockwell ADPCM
> 0x3c | = Rockwell DIGITALK
> 0x3d | = Xebec Multimedia
> 0x40 | = Antex G.721 ADPCM
> 0x41 | = Antex G.728 CELP
> 0x42 | = Microsoft MSG723
> 0x43 | = IBM AVC ADPCM
> 0x45 | = ITU-T G.726
> 0x50 | = Microsoft MPEG
> 0x51 | = RT23 or PAC
> 0x52 | = InSoft RT24
> 0x53 | = InSoft PAC
> 0x55 | = MP3
> 0x59 | = Cirrus
> 0x60 | = Cirrus Logic
> 0x61 | = ESS Tech. PCM
> 0x62 | = Voxware Inc.
> 0x63 | = Canopus ATRAC
> 0x64 | = APICOM G.726 ADPCM
> 0x65 | = APICOM G.722 ADPCM
> 0x66 | = Microsoft DSAT
> 0x67 | = Micorsoft DSAT DISPLAY
> 0x69 | = Voxware Byte Aligned
> 0x70 | = Voxware AC8
> 0x71 | = Voxware AC10
> 0x72 | = Voxware AC16
> 0x73 | = Voxware AC20
> 0x74 | = Voxware MetaVoice
> 0x75 | = Voxware MetaSound
> 0x76 | = Voxware RT29HW
> 0x77 | = Voxware VR12
> 0x78 | = Voxware VR18
> 0x79 | = Voxware TQ40
> 0x7a | = Voxware SC3
> 0x7b | = Voxware SC3
> 0x80 | = Soundsoft
> 0x81 | = Voxware TQ60
> 0x82 | = Microsoft MSRT24
> 0x83 | = AT&T G.729A
> 0x84 | = Motion Pixels MVI MV12
> 0x85 | = DataFusion G.726
> 0x86 | = DataFusion GSM610
> 0x88 | = Iterated Systems Audio
> 0x89 | = Onlive
> 0x8a | = Multitude, Inc. FT SX20
> 0x8b | = Infocom ITS A/S G.721 ADPCM
> 0x8c | = Convedia G729
> 0x8d | = Not specified congruency, Inc.
> 0x91 | = Siemens SBC24
> 0x92 | = Sonic Foundry Dolby AC3 APDIF
> 0x93 | = MediaSonic G.723
> 0x94 | = Aculab Prosody 8kbps
> 0x97 | = ZyXEL ADPCM
> 0x98 | = Philips LPCBB
> 0x99 | = Studer Professional Audio Packed
> 0xa0 | = Malden PhonyTalk
> 0xa1 | = Racal Recorder GSM
> 0xa2 | = Racal Recorder G720.a
> 0xa3 | = Racal G723.1
> 0xa4 | = Racal Tetra ACELP
> 0xb0 | = NEC AAC NEC Corporation
> 0xff | = AAC
> 0x100 | = Rhetorex ADPCM
> 0x101 | = IBM u-Law
> 0x102 | = IBM a-Law
> 0x103 | = IBM ADPCM
> 0x111 | = Vivo G.723
> 0x112 | = Vivo Siren
> 0x120 | = Philips Speech Processing CELP
> 0x121 | = Philips Speech Processing GRUNDIG
> 0x123 | = Digital G.723
> 0x125 | = Sanyo LD ADPCM
> 0x130 | = Sipro Lab ACEPLNET
> 0x131 | = Sipro Lab ACELP4800
> 0x132 | = Sipro Lab ACELP8V3
> 0x133 | = Sipro Lab G.729
> 0x134 | = Sipro Lab G.729A
> 0x135 | = Sipro Lab Kelvin
> 0x136 | = VoiceAge AMR
> 0x140 | = Dictaphone G.726 ADPCM
> 0x150 | = Qualcomm PureVoice
> 0x151 | = Qualcomm HalfRate
> 0x155 | = Ring Zero Systems TUBGSM
> 0x160 | = Microsoft Audio1
> 0x161 | = Windows Media Audio V2 V7 V8 V9 / DivX audio (WMA) / Alex AC3 Audio
> 0x162 | = Windows Media Audio Professional V9
> 0x163 | = Windows Media Audio Lossless V9
> 0x164 | = WMA Pro over S/PDIF
> 0x170 | = UNISYS NAP ADPCM
> 0x171 | = UNISYS NAP ULAW
> 0x172 | = UNISYS NAP ALAW
> 0x173 | = UNISYS NAP 16K
> 0x174 | = MM SYCOM ACM SYC008 SyCom Technologies
> 0x175 | = MM SYCOM ACM SYC701 G726L SyCom Technologies
> 0x176 | = MM SYCOM ACM SYC701 CELP54 SyCom Technologies
> 0x177 | = MM SYCOM ACM SYC701 CELP68 SyCom Technologies
> 0x178 | = Knowledge Adventure ADPCM
> 0x180 | = Fraunhofer IIS MPEG2AAC
> 0x190 | = Digital Theater Systems DTS DS
> 0x200 | = Creative Labs ADPCM
> 0x202 | = Creative Labs FASTSPEECH8
> 0x203 | = Creative Labs FASTSPEECH10
> 0x210 | = UHER ADPCM
> 0x215 | = Ulead DV ACM
> 0x216 | = Ulead DV ACM
> 0x220 | = Quarterdeck Corp.
> 0x230 | = I-Link VC
> 0x240 | = Aureal Semiconductor Raw Sport
> 0x241 | = ESST AC3
> 0x250 | = Interactive Products HSX
> 0x251 | = Interactive Products RPELP
> 0x260 | = Consistent CS2
> 0x270 | = Sony SCX
> 0x271 | = Sony SCY
> 0x272 | = Sony ATRAC3
> 0x273 | = Sony SPC
> 0x280 | = TELUM Telum Inc.
> 0x281 | = TELUMIA Telum Inc.
> 0x285 | = Norcom Voice Systems ADPCM
> 0x300 | = Fujitsu FM TOWNS SND
> 0x301 | = Fujitsu (not specified)
> 0x302 | = Fujitsu (not specified)
> 0x303 | = Fujitsu (not specified)
> 0x304 | = Fujitsu (not specified)
> 0x305 | = Fujitsu (not specified)
> 0x306 | = Fujitsu (not specified)
> 0x307 | = Fujitsu (not specified)
> 0x308 | = Fujitsu (not specified)
> 0x350 | = Micronas Semiconductors, Inc. Development
> 0x351 | = Micronas Semiconductors, Inc. CELP833
> 0x400 | = Brooktree Digital
> 0x401 | = Intel Music Coder (IMC)
> 0x402 | = Ligos Indeo Audio
> 0x450 | = QDesign Music
> 0x500 | = On2 VP7 On2 Technologies
> 0x501 | = On2 VP6 On2 Technologies
> 0x680 | = AT&T VME VMPCM
> 0x681 | = AT&T TCP
> 0x700 | = YMPEG Alpha (dummy for MPEG-2 compressor)
> 0x8ae | = ClearJump LiteWave (lossless)
> 0x1000 | = Olivetti GSM
> 0x1001 | = Olivetti ADPCM
> 0x1002 | = Olivetti CELP
> 0x1003 | = Olivetti SBC
> 0x1004 | = Olivetti OPR
> 0x1100 | = Lernout & Hauspie
> 0x1101 | = Lernout & Hauspie CELP codec
> 0x1102 | = Lernout & Hauspie SBC codec
> 0x1103 | = Lernout & Hauspie SBC codec
> 0x1104 | = Lernout & Hauspie SBC codec
> 0x1400 | = Norris Comm. Inc.
> 0x1401 | = ISIAudio
> 0x1500 | = AT&T Soundspace Music Compression
> 0x181c | = VoxWare RT24 speech codec
> 0x181e | = Lucent elemedia AX24000P Music codec
> 0x1971 | = Sonic Foundry LOSSLESS
> 0x1979 | = Innings Telecom Inc. ADPCM
> 0x1c07 | = Lucent SX8300P speech codec
> 0x1c0c | = Lucent SX5363S G.723 compliant codec
> 0x1f03 | = CUseeMe DigiTalk (ex-Rocwell)
> 0x1fc4 | = NCT Soft ALF2CD ACM
> 0x2000 | = FAST Multimedia DVM
> 0x2001 | = Dolby DTS (Digital Theater System)
> 0x2002 | = RealAudio 1 / 2 14.4
> 0x2003 | = RealAudio 1 / 2 28.8
> 0x2004 | = RealAudio G2 / 8 Cook (low bitrate)
> 0x2005 | = RealAudio 3 / 4 / 5 Music (DNET)
> 0x2006 | = RealAudio 10 AAC (RAAC)
> 0x2007 | = RealAudio 10 AAC+ (RACP)
> 0x2500 | = Reserved range to 0x2600 Microsoft
> 0x3313 | = makeAVIS (ffvfw fake AVI sound from AviSynth scripts)
> 0x4143 | = Divio MPEG-4 AAC audio
> 0x4201 | = Nokia adaptive multirate
> 0x4243 | = Divio G726 Divio, Inc.
> 0x434c | = LEAD Speech
> 0x564c | = LEAD Vorbis
> 0x5756 | = WavPack Audio
> 0x674f | = Ogg Vorbis (mode 1)
> 0x6750 | = Ogg Vorbis (mode 2)
> 0x6751 | = Ogg Vorbis (mode 3)
> 0x676f | = Ogg Vorbis (mode 1+)
> 0x6770 | = Ogg Vorbis (mode 2+)
> 0x6771 | = Ogg Vorbis (mode 3+)
> 0x7000 | = 3COM NBX 3Com Corporation
> 0x706d | = FAAD AAC
> 0x7a21 | = GSM-AMR (CBR, no SID)
> 0x7a22 | = GSM-AMR (VBR, including SID)
> 0xa100 | = Comverse Infosys Ltd. G723 1
> 0xa101 | = Comverse Infosys Ltd. AVQSBC
> 0xa102 | = Comverse Infosys Ltd. OLDSBC
> 0xa103 | = Symbol Technologies G729A
> 0xa104 | = VoiceAge AMR WB VoiceAge Corporation
> 0xa105 | = Ingenient Technologies Inc. G726
> 0xa106 | = ISO/MPEG-4 advanced audio Coding
> 0xa107 | = Encore Software Ltd G726
> 0xa109 | = Speex ACM Codec xiph.org
> 0xdfac | = DebugMode SonicFoundry Vegas FrameServer ACM Codec
> 0xe708 | = Unknown -
> 0xf1ac | = Free Lossless Audio Codec FLAC
> 0xfffe | = Extensible
> 0xffff | = Development

## RIFF StreamHeader Tags

> Index | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0 | StreamType | N | 'auds' = Audio 'mids' = MIDI 'txts' = Text 'vids' = Video
> 1 | Codec | N |
> 10 | Quality | N |
> 11 | SampleSize | N |

## RIFF AVIHeader Tags

> Index | Tag Name | Writable | Values / Notes
> --- | --- | --- | ---
> 0 | FrameRate | N |
> 1 | MaxDataRate | N |
> 4 | FrameCount | N |
> 6 | StreamCount | N |
> 8 | ImageWidth | N |
> 9 | ImageHeight | N |

(This document generated automatically by Image::ExifTool::BuildTagLookup)
Last revised Mar 10, 2008

<-- ExifTool Tag Names