It has been suggested that List of open-source codecs be merged into this article. (Discuss) Proposed since May 2016.

The following is a list of compression formats and related codecs.

Audio compression formats

Non-compression

Linear Pulse Code Modulation (LPCM, generally only described as PCM) is the format for uncompressed audio in media files and it is also the standard for CD-DA; note that in computers, LPCM is usually stored in container formats such as WAV, AIFF, or AU, or as raw audio format, although not technically necessary.
- FFmpeg
Pulse-density modulation (PDM)
- Direct Stream Digital (DSD) is standard for Super Audio CD
  - foobar2000 Super Audio CD Decoder (based on MPEG-4 DST reference decoder)
  - FFmpeg (based on dsd2pcm)
Pulse-amplitude modulation (PAM)

Lossless compression

Actively used
- Most popular
  - Free Lossless Audio Codec (FLAC)^[1]
    - libFLAC
    - FFmpeg
  - Apple Lossless Audio Codec (ALAC)
    - Apple QuickTime
    - libalac
    - FFmpeg
  - Monkey's Audio (APE)
    - Monkey's Audio SDK
    - FFmpeg (decoder only)
  - OptimFROG (OFR)
  - Tom's verlustfreier Audiokompressor (TAK)
    - TAK SDK
    - FFmpeg (decoder only)
  - WavPack (WV)
    - libwavpack
    - FFmpeg
  - True Audio (TTA)
    - libtta
    - FFmpeg
  - Windows Media Audio Lossless (WMAL)
    - Windows Media Encoder
    - FFmpeg (decoder only)
- Other
  - DTS-HD Master Audio, also known as DTS++ and DCA XLL
    - libdca (decoder only)
    - FFmpeg (decoder only)
  - Dolby TrueHD – Standard for DVD-Audio in Blu-ray (mathematically based on MLP)
    - FFmpeg
  - Meridian Lossless Packing (MLP), also known as Packed PCM (PPCM) – Standard for DVD-Audio in DVD
    - FFmpeg
  - MPEG-4 Audio Lossless Coding (MPEG-4 ALS)
    - SSC, DST, ALS and SLS reference software (ISO/IEC 14496-5:2001/Amd.10:2007)
    - FFmpeg (decoding only)
  - MPEG-4 Scalable Lossless Coding (MPEG-4 SLS) – Parts of it are used in HD-AAC.
    - SSC, DST, ALS and SLS reference software (ISO/IEC 14496-5:2001/Amd.10:2007)
  - RealAudio Lossless
    - RealPlayer
    - FFmpeg (decoding only)
  - BFDLAC (BFD Lossless Audio Compression).^[2] Ongoing development.
    - FXpansion's BFD3 drum software. (2013-2017)
- Oddball
  - ATRAC Advanced Lossless (AAL) – Extremely unpopular
    - FFmpeg (lossy decoder only)
  - Direct Stream Transfer (DST) - Only used for Direct Stream Digital
    - SSC, DST, ALS and SLS reference software (ISO/IEC 14496-5:2001/Amd.10:2007)
    - FFmpeg (decoder only)
  - Original Sound Quality (OSQ) - Only used in WaveLab
Discontinued
- Lossless Audio (LA)^[3] – No update for 10+ years
- Shorten (SHN)^[4] – Officially discontinued.
  - libshn
  - FFmpeg (decoding only)
- Lossless Predictive Audio Compression (LPAC) – Predecessor of MPEG-4 ALS
- Lossless Transform Audio Compression (LTAC) – Predecessor of LPAC
- MPEG-1 Audio Layer III HD (mp3HD) – Officially discontinued
- RK Audio (RKAU)^[5] – Officially discontinued

Lossy compression

General

Adaptive Differential (or Delta) pulse-code modulation (ADPCM, see pulse-code modulation)
Adaptive Transform Acoustic Coding (ATRAC, used in MiniDisc devices)
- FFmpeg (decoder only)
ATSC/ETSI standards:
- Dolby Digital (AC3, ATSC A/52, ETSI TS 102 366)
  - FFmpeg
  - liba52 (decoder only)
- DTS Coherent Acoustics (DTS, Digital Theatre System Coherent Acoustics, ETSI TS 102 114)
  - FFmpeg
  - libdca (decoder only)
Impala FORscene audio codec
ITU standards:
- G.719
- G.722
  - FFmpeg
- G.722.1 and G.722.1 Annex C
  - libg722_1
  - libsiren (part of libmsn and msn-pecan)
- G.722.2
  - 3GPP TS 26.173 – AMR-WB speech Codec (C-source code) – reference implementation^[6]
  - opencore-amr (decoder)
  - VisualOn AMR-WB encoder
  - FFmpeg (decoding only)
MPEG-1 Audio and MPEG-2 Audio
- layer I (MP1) (MPEG-1, MPEG-2 and non-ISO MPEG-2.5)
  - FFmpeg (decoder only)
- layer II (MP2) (MPEG-1, MPEG-2 and non-ISO MPEG-2.5)
  - FFmpeg
  - tooLame (encoding only)
  - twoLame (encoding only)
- layer III (MP3) (MPEG-1, MPEG-2 and non-ISO MPEG-2.5)
  - FFmpeg (decoding only)
  - LAME (encoding only)
- Advanced Audio Coding (AAC) (MPEG-2 Part 7)
  - FAAC (encoder) and FAAD (decoder)
  - FFmpeg
  - iTunes
  - Nero AAC Codec
  - VisualOn AAC Encoder (a.k.a. libvo_aacenc)
  - Fraunhofer FDK AAC
  - libaacplus
MPEG-4 Audio
- Advanced Audio Coding (AAC, MPEG-4 Part 3 subpart 4), HE-AAC and AAC-LD
  - FAAC, FAAD2
  - FFmpeg
  - iTunes
  - Nero AAC Codec
  - MPEG-4 AAC reference software (ISO/IEC 14496-5:2001)
- Harmonic and Individual Lines and Noise (HILN, MPEG-4 Parametric Audio Coding)
  - MPEG-4 reference software (ISO/IEC 14496-5:2001)
- TwinVQ
  - MPEG-4 reference software (ISO/IEC 14496-5:2001)
  - FFmpeg (decoding only)
- BSAC (Bit-Sliced Arithmetic Coding)
  - MPEG-4 reference software (ISO/IEC 14496-5:2001)
Musepack (a.k.a. MPEGplus)
- Musepack SV8 Tools
- FFmpeg (decoding only)
IETF standards:
- Opus (RFC 6716) – based on SILK vocoder and CELT codec
  - libopus
  - FFmpeg (decoding and experimental encoding)
AT&T Perceptual audio coder
QDesign (purchased by DTS)
- QDesign Music Codec – used in Apple QuickTime
  - FFmpeg (decoding only)
PictureTel (purchased by Polycom)
- Siren 7
  - libg722_1
  - libsiren (part of libmsn and msn-pecan)
- Siren 14
  - libg722_1
- Siren 22
NTT TwinVQ
- FFmpeg (decoder only)
- NTT TwinVQ Encoder, NTT TwinVQ Player
Voxware MetaSound (a variant of NTT TwinVQ)
- Windows Media Player (voxmsdec.ax)
- FFmpeg (decoder only)
Vorbis
- aoTuV
- FFmpeg
- libvorbis
- Tremor (decoder only)
Windows Media Audio (WMA)
- Windows Media Encoder
- FFmpeg
Dolby E
- FFmpeg (decoder only)

Bluetooth

Bluetooth Special Interest Group
- Low Complexity Subband Coding (SBC)
  - BlueZ
  - Fluoride Bluetooth stack (successor of BlueDroid)
- CVSD 8kHz - used in Hands-Free Profile (HFP)
- modified SBC (mSBC) - used in Hands-Free Profile (HFP)
Qualcomm Technologies International (formerly CSR)
- aptX (a.k.a. apt-X)
  - Qualcomm libaptX^[7]
  - FFmpeg
- aptX HD
  - Qualcomm libaptXHD^[7]
Sony
- LDAC
  - libldac (encoder only)^[8] - used in Android O

Voice

(low bit rate, optimized for speech)

Xiph.Org Foundation
- Speex, patent free^[9]
  - libspeex
Dialogic ADPCM (VOX)
International Voice Association (IVA) standards:
- Digital Speech Standard / Standard Play (DSS-SP)
  - FFmpeg (decoding only)
- Digital Speech Standard / Quality Play (DSS-QP)
ITU standards:
- G.711 (a-law and μ-law companding), also known as PCM of voice frequencies
  - FFmpeg (libavcodec)
- G.711.0 (G.711 LLC)
- G.711.1 (Wideband extension for G.711)
- G.711.1D (Super-wideband extension for G.711.1)
- G.718
- G.718B (Super-wideband extension for G.718)
- G.719
- G.721 (superseded by G.726)
- G.722 (SB-ADPCM)
  - FFmpeg
- G.722B (Super-wideband extension for G.722)
- G.722.1
- G.722.2 (AMR-WB)
  - 3GPP TS 26.173 – AMR-WB speech Codec (C-source code) – reference implementation^[6]
  - opencore-amr (decoder)
  - FFmpeg (decoder only)
- G.723 (24 and 40 kbit/s DPCM, extension to G.721, superseded by G.726)
- G.723.1 (MPC-MLQ or ACELP)
  - FFmpeg
- G.726 (ADPCM)
  - FFmpeg (libavcodec)
- G.728 (LD-CELP)
- G.729 (CS-ACELP)
  - FFmpeg (decoder only)
- G.729a
- G.729d
  - FFmpeg (decoder only)
- G.729.1 (Wideband extension for G.711)
- G.729.1E (Super-wideband extension for G.729.1)
Google
- internet Speech Audio Codec (iSAC)
  - WebRTC
Nellymoser Asao Codec
- FFmpeg (libavcodec)
PictureTel PT716, PT716plus
PictureTel PT724
RTAudio – used by Microsoft Live Communication Server
SVOPC – used by Skype
OpenLPC – created by Future Dynamics^[10]
- HawkVoice (libHVDI)
Truespeech Triple Rate CODER (TRC)^[11] – used in some pocket recorders
ANSI/SCTE
- ANSI/SCTE 24-21 2006 (BroadVoice16)
  - BroadVoice Speech Codec Open Source C Code
- ANSI/SCTE 24-22 2013 (iLBCv2.0)
- ANSI/SCTE 24-23 2007 (BroadVoice32)
  - BroadVoice Speech Codec Open Source C Code
IETF RFCs:
- Internet Low Bit Rate Codec (iLBC, RFC 3951) – developed by Global IP Solutions/Google
  - WebRTC
IETF Internet Draft
- IPMR Speech Codec (used by SPIRIT DSP and many others)^[12]
- SILK (used by Skype)^[13]
- CELT (developed by Xiph.Org Foundation)^[14]
  - libcelt
MPEG-4 Audio
- MPEG-4 CELP
- MPEG-4 HVXC
Skyphone MPLP
Inmarsat
- INMARSAT-M IMBE
- Inmarsat Mini-M AMBE

Microsoft DirectPlay

Those codecs are used by many PC games which use voice chats via Microsoft DirectPlay API.

Voxware MetaVoice
- Windows Media Player (voxmvdec.ax)
Truespeech
- Windows Media Player (tssoft32.acm)
- FFmpeg (decoder only)
MS GSM
- Windows Media Player (msgsm32.acm)
- libgsm
- FFmpeg (decoder only)
MS-ADPCM
- Windows Media Player (msadp32.acm)
- FFmpeg

Mobile phone

Generation 2

European Telecommunications Standards Institute (ETSI) GSM
- Full Rate (GSM 06.10, RPE-LTP)
  - libgsm
  - FFmpeg (decoder only)
- Half Rate (GSM 06.20, VSELP 5.6kbit/s)
- Enhanced Full Rate (GSM 06.60, ACELP 12.20kbit/s, compatible with AMR mode AMR_12.20)
Telecommunications Industry Association (TIA) IS-95 (a.k.a. cdmaOne)
- IS-96A (QCELP 8kbit/s)
- IS-127 (EVRC 8kbit/s)
- IS-733 (QCELP 13kbit/s)
Telecommunications Industry Association (TIA) IS-54/IS-136 (a.k.a. Digital AMPS)
- IS-85 (VSELP 8kbit/s)
- IS-641 (ACELP 7.4kbit/s, compatible with AMR mode AMR_7.40)
Association of Radio Industries and Businesses (ARIB) RCR STD-27 (PDC)
- PDC-HR (PSI-CELP 3.45kbit/s)
- PDC-FR (VSELP 11.2kbit/s)
- PDC-EFR CS-ACELP 8kbit/s (a.k.a. G.729)
- PDC-EFR ACELP 6.7kbit/s (compatible with AMR mode AMR_6.70)

Generation 3/4

3rd Generation Partnership Project (3GPP)
- Adaptive Multi-Rate (AMR)
  - AMR-NB
    - 3GPP TS 26.073 – AMR speech Codec (C-source code) – reference implementation^[15]
    - opencore-amr (one may compile ffmpeg with—enable-libopencore-amrnb to incorporate the OpenCORE lib)
    - FFmpeg (by default decoder only, but see above the compiling options to incorporate the OpenCORE lib)
  - AMR-WB
    - 3GPP TS 26.173 – AMR-WB speech Codec (C-source code) – reference implementation^[6]
    - opencore-amr (decoder), from OpenCORE (one may compile ffmpeg with—enable-libopencore-amrwb to incorporate the OpenCORE lib)
    - vo-amrwbenc (encoder), from VisualOn, included in Android (one may compile ffmpeg with—enable-libvo-amrwbenc to incorporate the VisualOn lib)
    - FFmpeg (by default decoder only, but see above the compiling options).
  - AMR-WB+
    - 3GPP TS 26.273 – AMR-WB+ speech Codec (C-source code) – reference implementation^[16]
  - Enhanced Voice Services (EVS)
    - 3GPP TS.26.443 – Codec for Enhanced Voice Services (EVS) – ANSI C code (floating-point)^[17]
3rd Generation Partnership Project 2 (3GPP2)
- Enhanced Variable Rate Codec (EVRC, a.k.a. IS-127) – based on RCELP
  - FFmpeg (decoder only)
- Enhanced Variable Rate Codec B (EVRC-B)
- QCELP (Qualcomm Code Excited Linear Prediction)
  - QCELP-8 (a.k.a. SmartRate or IS-96C)
    - FFmpeg (decoder only)
  - QCELP-13 (a.k.a. PureVoice or IS-733)
    - FFmpeg (decoder only)
- Selectable Mode Vocoder (SMV)
- Variable Multi Rate – WideBand (VMR-WB)

Professional mobile radio

APCO
- Project 25 Phase 2 Enhanced Full-Rate (AMBE+2 4400bit/s with 2800bit/s FEC)
- Project 25 Phase 2 Half-Rate (AMBE+2 2450bit/s with 1150bit/s FEC) – also used in NXDN and DMR
  - mbelib (decoder only)
- Project 25 Phase 1 Full Rate (IMBE 7200bit/s)
  - mbelib (decoder only)
European Telecommunications Standards Institute (ETSI)
- ETS 300 395-2 (TETRA ACELP 4.6kbit/s)
TETRAPOL
- RPCELP 6kbit/s
D-STAR Digital Voice (AMBE 2400bit/s with 1200bit/s FEC)
- mbelib (decoder only)
Professional Digital Trunking System Industry Association (PDT Alliance) standards:
- NVOC – used in China
Spirit DSP RALCWI
DSPINI
- SPR Robust
- TWELP Robust
Codec2
RL-CELP (used in Japanese railways^[18]^[19])

Military

U.S. Department of Defence (DoD) Federal Standard:
- FS-1015 (a.k.a. LPC-10)
  - HawkVoice (libHVDI)
- FS-1016 (CELP)
  - HawkVoice (libHVDI)
- FS-1023 (CVSD 12kbit/s)
United States Military Standard (MIL-STD)
- MIL-STD-188 113 (CVSD 16kbit/s and 32kbit/s)
  - SoX (libsox)
- MIL-STD-3005 (a.k.a. MELP)
  - Texas Instruments' 2.4 kbit/s MELP Proposed Federal Standard speech coder
NATO
- STANAG 4198 (a.k.a. LPC-10e)
- STANAG-4591 (a.k.a. MELPe)
BBN NRV – developed in DARPA program^[20]

Video games

Bink Audio, Smacker Audio
- FFmpeg (decoder only)
Actimagine (Nintendo European Research & Development) FastAudio^[21]
- MobiclipDecoder (decoder only)
Nintendo GCADPCM^[22] - used in GameCube, Wii and Nintendo 3DS.
- vgmstream (decoder only)
- VGAudio
Sony VAG^[22]
- vgmstream (decoder only)
Sony HEVAG^[22] - used in PS Vita.^[23]
- vgmstream (decoder only)
Sony ATRAC9^[22] - used in PS4 and PS Vita.
- VGAudio (decoder only)
Microsoft XMA^[22] - WMA variants for Xbox 360 hardware decoding.^[24]
- FFmpeg (decoder only)
CRI ADX ADPCM
- vgmstream (decoder only)
- VGAudio
- FFmpeg
CRI HCA/HCA-MX - used in CRI ADX2 middleware.^[25]
- vgmstream (decoder only)
- VGAudio
- libcgss
FMOD FADPCM^[26]

Text compression formats

Video compression formats

Lossless video compression

ITU-T/ISO/IEC standards:
- H.264 lossless
  - x264 (encoder only)
  - FFmpeg (decoder only, uses x264 for encoding)
- Motion JPEG 2000 lossless
  - libopenjpeg
IETF standards:
- ZRLE (RFC 6143 7.7.6) - used by VNC
SMPTE standards:
- VC-2 HQ lossless (a.k.a. Dirac Pro lossless)
  - libdirac
  - libschroedinger
Alparysoft Lossless Video Codec (Alpary)
Apple Animation (QuickTime RLE)
- QuickTime
- FFmpeg
ArithYuv
AV1
- aomenc
AVIzlib
- LCL (VfW codec) MSZH and ZLIB^[27]
- FFmpeg
Autodesk Animator Codec (AASC)
- FFmpeg (decoder only)
CamStudio GZIP/LZO
- FFmpeg (decoder only)
Chennai Codec (EVX-2)
Dxtory
- FFmpeg (decoder only)
FastCodec
FFV1^[28] FFV1's compression factor is comparable to Motion JPEG 2000, but based on quicker algorithms (allows real-time capture). Written by Michael Niedermayer and published as part of FFmpeg under to GNU LGPL.
- FFmpeg
Flash Screen Video v1/v2^[29]
- FFmpeg
FM Screen Capture Codec
- FFmpeg (decoder only)
Fraps codec (FPS1)^[30]
- FFmpeg (decoder only)
Grass Valley Lossless
- Grass Valley Codec Option
- FFmpeg (decoder only)
Huffyuv Huffyuv (or HuffYUV) was written by Ben Rudiak-Gould and published under the terms of the GNU GPL as free software, meant to replace uncompressed YCbCr as a video capture format. It uses very little cpu but takes a lot of disk space. See also ffvhuff which is an "FFmpeg" only version of it.
- FFmpeg
IgCodec
innoHeim/Rsupport Screen Capture Codec
- FFmpeg (decoder only)
Lagarith A more up-to-date fork of Huffyuv is available as Lagarith^[31]
- Lagarith Codec (VfW codec)
- FFmpeg (decoder only)
LOCO^[32] - based on JPEG-LS
- FFmpeg (decoder only)
MagicYUV^[33]
- MagicYUV SDK
- FFmpeg (decoder only)
MSU Lossless Video Codec
MSU Screen Capture Lossless
CorePNG [de] - based on PNG
- FFmpeg
ScreenPresso (SPV1)
- FFmpeg (decoder only)
ScreenPressor^[34] - a successor of MSU Screen Capture Lossless
- FFmpeg (decoder only)
SheerVideo
- FFmpeg (decoder only)
Snow lossless
- FFmpeg
TechSmith Screen Capture Codec (TSCC)^[35]
- EnSharpen Video Codec for QuickTime
- FFmpeg (decoder only)
Toponoky
Ut Video Codec Suite^[36]^[37]
- libutvideo
- FFmpeg
VBLE^[38]
- FFmpeg (decoder only)
VMnc VMware screen codec^[39] - used by VMware Workstation
- FFmpeg (decoder only)
VP9 by Google^[40]
- libvpx
- FFmpeg (decoder only)
YULS
ZeroCodec
- FFmpeg (decoder only)
ZMBV (Zip Motion Block Video) Codec - used by DOSBox
- FFmpeg
CinemaDNG Raw (created by Adobe, used by Blackmagic)

Lossless game codecs

DXA
- ScummVM Tools (encoder only)
- FFmpeg (decoder only)

Lossy compression

General

AV1
- aomenc
Blackbird FORscene video codec
Cinepak^[41] (a.k.a. Apple Compact Video)
- FFmpeg
Dirac
- Schrödinger
- dirac-research
- FFmpeg (decoder only)
Firebird^[42] Original FORscene video codec
H.261 (a.k.a. Px64)
- FFmpeg H.261 (libavcodec)
MPEG-1 Part 2 (MPEG-1 Video)
- Elecard MPEG-1 Decoder/Encoder
- FFmpeg
- MainConcept MPEG-1
- TMPGEnc
H.262/MPEG-2 Part 2 (MPEG-2 Video)
- Canopus ProCoder
- Cinema Craft Encoder
- Elecard MPEG-2 Video Decoder/Encoder
- FFmpeg
- InterVideo Video Decoder
- MainConcept MPEG-2
- TMPGEnc
H.263
- FFmpeg H.263 (libavcodec)
MPEG-4 Part 2 (MPEG-4 Advanced Simple Profile)
- 3ivx
- DivX
- Elecard MPEG-4 Decoder/Encoder
- libavcodec
- HDX4
- Nero Digital
- Xvid
H.264/MPEG-4 AVC or MPEG-4 Part 10 (MPEG-4 Advanced Video Coding), approved for Blu-ray
- CoreAVC (decoder only; limited to below Hi10P profile)
- Elecard AVC Decoder/Encoder (baseline and main profile)
- MainConcept
- Nero Digital
- QuickTime H.264
- Sorenson AVC Pro codec, Sorenson's new implementation
- OpenH264 (baseline profile only)
- x264 (encoder only; supports some of Hi422P and Hi444PP features)
- FFmpeg (decoder only)
MPEG-4 AVC variants:
- MPEG-4 Web Video Coding or MPEG-4 Part 29 – a subset of MPEG-4 AVC baseline profile
- Scalable Video Coding
- XAVC
HEVC
- x265 (encoder only)
Indeo 2 (RTV 2.1)/3^[43]/4/5^[44]
- FFmpeg (decoder only)
OMS Video
On2 Technologies TrueMotion VP3/VP4, VP5, VP6, VP7, VP8; under the name The Duck Corporation: TrueMotion S, TrueMotion 2, TrueMotion RT 2.0
- FFmpeg (decoder only)
RealVideo
- FFmpeg
Snow Wavelet Codec
Sorenson Video,^[45] Sorenson Spark
- FFmpeg
Theora
- FFmpeg (decoding only)
- libtheora
VC-1 (SMPTE standard, subset of Windows Media Video)
- FFmpeg (decoder only)
VP9 by Google
Windows Media Video (WMV)
- WAX (Part of the Windows Media Series)
- FFmpeg
Guobiao standards (GB/T)
- Audio Video Standard (AVS)
  - AVS1-P2 (GB/T 20090.2-2006)
    - FFmpeg (decoding only)
  - AVS1-P7 (AVS-M; under-development)
  - AVS-S-P2 (under-development)
  - AVS2-P2 (a.k.a. IEEE 1857.4; under-development)
    - uAVS2 Encoder
    - uavs2d^[46] (decoder only)
- SVAC (GB/T 25724-2010)

Intra-frame-only

Motion JPEG
- FFmpeg
- Morgan Multimedia M-JPEG
- Pegasus PICVideo M-JPEG
- MainConcept M-JPEG
ISO/IEC standard
- Motion JPEG 2000 (ISO/IEC 15444-3, ITU-T T.802)
  - libopenjpeg
  - FFmpeg
- DV (IEC 61834)
  - FFmpeg
- MPEG-4 SStP (ISO/IEC 14496-2)
Redcode RAW (used in RED cameras) – a modified version of JPEG 2000^[47]
- libredcode
Apple ProRes 422/4444
- FFmpeg
Apple Intermediate Codec
- FFmpeg (decoder only)
Apple Pixlet
- FFmpeg (decoder only)
AVC-Intra
- x264 (encoder only)
- FFmpeg (decoder only)
AVC-Ultra – a subset of MPEG-4 AVC Hi444PP profile
XAVC-I
SMPTE standard
- VC-2 SMPTE standard (a.k.a. Dirac Pro. SMPTE ST 2042)
  - Schrödinger
  - dirac-research
  - VC-2 Reference Encoder and Decoder – developed by BBC (open source)
  - FFmpeg (the encoder only supports VC-2 HQ profile)
- VC-3 SMPTE standard (SMPTE ST 2019)
  - Avid DNxHD
  - FFmpeg
- VC-5 SMPTE standard (SMPTE ST 2073)
  - CineForm-SDK – developed by GoPro (open source)
  - FFmpeg (decoder only)
Grass Valley HQ/HQA/HQX
- Grass Valley Codec Option
- FFmpeg (decoder only)
NewTek NT25
NewTek SpeedHQ
- FFmpeg (decoder only)

Stereoscopic 3D

Multiview Video Coding

Video games

Bink Video, Smacker video
- FFmpeg
- libavcodec
Nintendo Mobiclip video codec
CRI Sofdec codec - a MPEG variant with 11-bit DC and color space correction;^[48] used in Sofdec middleware
CRI P256 - used in Sofdec middleware for Nintendo DS^[49]
Indeo Video Interactive (aka Indeo 4/5) - used in PC games for Microsoft Windows
- FFmpeg (decoder only)

Real-time

Hap/Hap Alpha/Hap Q
- VIDVOX hap codec
- FFmpeg
DXV Codec
- Resolume DXV Codec
- FFmpeg (decoder only)
VESA Display Stream Compression (DSC)

References

^ FLAC (Free Lossless Audio Codec), Version 1.1.2 Library of Congress
^ "BFDLAC: A Fast lossless Audio Compression Algorithm For Drum Sounds" (PDF).
^ "Lossless Audio Homepage".
^ Shorten Lossless Audio Compression Format (SHN), Version 3.5.1 Library of Congress
^ "RK Audio".
^ ^a ^b ^c 3GPP (2008-12-11) 3GPP TS 26.173 - AMR-WB speech Codec; version 8.0.0 Release 8, retrieved 2009-09-09
^ ^a ^b Integration of the aptX and aptX-HD codecs for A2DP source, Android Open Source Project, January 4, 2017
^ The contribution of LDAC encoder, Android Open Source Project, January 10, 2017
^ Speex Audio Codec, Version 1.2 Library of Congress
^ Finding voice codecs for free software Linux.com October 14, 2005
^ DSP Group Unveils Total Telephony Solutions(TM) For Digital Cordless Telephony Applications PRNewswire
^ IPMR Speech Codec - draft-spiritdsp-ipmr-01.txt IETF
^ SILK Speech Codec - draft-vos-silk-02 IETF
^ Constrained-Energy Lapped Transform (CELT) Codec - draft-valin-celt-codec-02 IETF
^ 3GPP (2008-12-11) 3GPP TS 26.073 - AMR speech Codec; version 8.0.0 Release 8, retrieved 2009-09-08.
^ 3GPP (2008-12-18) 3GPP TS 26.273 - AMR-WB+ speech Codec; version 8.0.0 Release 8, retrieved 2009-09-09
^ 3GPP TS 26.443. Codec for Enhanced Voice Services (EVS); ANSI C code (floating-point).
^ INFORMATION COLLECTION SURVEY FOR THE MEGA MANILA SUBWAY PROJECT IN THE REPUBLIC OF THE PHILIPPINES Japan International Cooperation Agency September, 2015
^ 東北上越新幹線デジタル列車無線システムの開発 Template:Ja East Japan Railway Company 2003
^ 300 bps noise robust vocoder MILCOM 2010
^ Actimagine allège le multimédia sur les terminaux portables Template:Fr icon, IT Industrie & Technologies, June 25, 2004
^ ^a ^b ^c ^d ^e AudioCompressionFormat, Unity Technologies
^ Audio Clip, Unity Technologies
^ Differences Between Windows and Xbox 360, Microsoft
^ 【ひらブラ vol.37】音数を諦めず／音質を妥協せず／負荷を極小にする方法（iOS&Android） Template:Ja icon, Kadokawa Dwango, September 26, 2014
^ FMOD Studio 1.06 and FMOD at GDC expo program announced, Gamasutra, February 17, 2015
^ "Lossless Codec Libraries". multimedia.cx.
^ FF Video Codec 1 Library of Congress
^ http://ffmpeg.org/doxygen/trunk/flashsv_8c.html
^ http://www.fraps.com/faq.php#videocap
^ http://lags.leetcode.net/codec.html
^ http://wiki.multimedia.cx/index.php?title=LOCO
^ http://magicyuv.com/
^ "ScreenPressor by Infognition - lossless video codec for screen capture". infognition.com.
^ "Downloads". TechSmith.
^ "#534 (Ut Video Support) – FFmpeg". ffmpeg.org.
^ "Ut Video Codec Suite - a new lossless video codec for Windows! [Archive] - Doom9's Forum". doom9.org.
^ http://wiki.multimedia.cx/index.php?title=VBLE
^ "VMware Video". multimedia.cx.
^ "The WebM Project - VP8 Encode Parameter Guide". webmproject.org.
^ Cinepak Library of Congress
^ "Live demonstration". Forbidden.
^ Indeo Video Codec, Version 3 Library of Congress
^ Indeo Video Codec, Version 5 Library of Congress
^ Sorenson Video Codec, Version 3 Library of Congress
^ FFmpeg-devel - PATCH - Add decoding support for the second generation IEEE 1857 video coding standard(AVS2) using uavs2d library FFmpeg Project
^ libredcode
^ 独自コーデックを搭載したニンテンドーDS版Sofdec Template:Ja icon CRI Middleware, May 11, 2006
^ CRI・ミドルウェア、ゲーム開発者向けブログ「CRIチャンネル」を開設 Template:Ja icon Impress Watch Corporation, April 19, 2007

External links

Subjective codec comparison
Audio formats comparison – a look at six lossless formats and five lossy formats
http://www.fourcc.org/codecs.php, list of codec four digit codes (like DIV3, XVID, ...)
Interactive blind listening tests of audio codecs over the internet
http://mediainfo.sourceforge.net/en/Support/Formats,List of different audio codecs and meta-data by them
Online Video Format Identification Tool – designed primarily for CCTV video formats and codecs

Multimedia compression and container formats

Video
compression

ISO, IEC, MPEG	DV MJPEG Motion JPEG 2000 MPEG-1 MPEG-2 Part 2 MPEG-4 Part 2 / ASP Part 10 / AVC Part 33 / IVC MPEG-H Part 2 / HEVC MPEG-I Part 3 / VVC MPEG-5 Part 1 / EVC Part 2 / LCEVC
ITU-T, VCEG	H.120 H.261 H.262 H.263 H.264 / AVC H.265 / HEVC H.266 / VVC
SMPTE	VC-1 VC-2 VC-3 VC-5 VC-6
TrueMotion and AOMedia	TrueMotion S VP3 VP6 VP7 VP8 VP9 AV1
Chinese Standard	AVS1 P2/AVS+(GB/T 20090.2/16) AVS2 P2(GB/T 33475.2,GY/T 299.1) HDR Vivid(GY/T 358) AVS3 P2(GY/T 368)
Others	Apple Video AVS Bink Cinepak Daala DVI FFV1 Huffyuv Indeo Lagarith Microsoft Video 1 MSU Lossless OMS Video Pixlet ProRes 422 4444 QuickTime Animation Graphics RealVideo RTVideo SheerVideo Smacker Sorenson Video/Spark Theora Thor Ut WMV XEB YULS

Audio
compression

ISO, IEC, MPEG	MPEG-1 Layer II Multichannel MPEG-1 Layer I MPEG-1 Layer III (MP3) AAC HE-AAC AAC-LD MPEG Surround MPEG-4 ALS MPEG-4 SLS MPEG-4 DST MPEG-4 HVXC MPEG-4 CELP MPEG-D USAC MPEG-H 3D Audio
ITU-T	G.711 A-law µ-law G.718 G.719 G.722 G.722.1 G.722.2 G.723 G.723.1 G.726 G.728 G.729 G.729.1
IETF	Opus iLBC Speex Vorbis FLAC
3GPP	AMR AMR-WB AMR-WB+ EVRC EVRC-B EVS GSM-HR GSM-FR GSM-EFR
ETSI	AC-3 AC-4 DTS
Bluetooth SIG	SBC LC3
Chinese Standard	AVS1 P10(GB/T 20090.10) AVS2 P3(GB/T 33475.3) Audio Vivid(GY/T 363) DRA(GB/T 22726) L2HC ExAC(SJ/T 11299.4)
Others	ACELP ALAC Asao ATRAC CELT Codec 2 iSAC Lyra MELP Monkey's Audio MT9 Musepack OptimFROG OSQ QCELP RCELP RealAudio RTAudio SD2 SHN SILK Siren SMV SVOPC TTA True Audio TwinVQ VMR-WB VSELP WavPack WMA MQA aptX aptX HD aptX Low Latency aptX Adaptive LDAC LHDC LLAC

Image
compression

IEC, ISO, IETF, W3C, ITU-T, JPEG	CCITT Group 4 GIF HEIC / HEIF HEVC JBIG JBIG2 JPEG JPEG 2000 JPEG-LS JPEG XL JPEG XR JPEG XS JPEG XT PNG TIFF TIFF/EP TIFF/IT
Others	APNG AV1 AVIF BPG DjVu EXR FLIF ICER MNG PGF QOI QTVR WBMP WebP

Containers

ISO, IEC	MPEG-ES MPEG-PES MPEG-PS MPEG-TS ISO/IEC base media file format MPEG-4 Part 14 (MP4) Motion JPEG 2000 MPEG-21 Part 9 MPEG media transport
ITU-T	H.222.0 T.802
IETF	RTP Ogg Matroska
SMPTE	GXF MXF
Others	3GP and 3G2 AMV ASF AIFF AVI AU BPG Bink Smacker BMP DivX Media Format EVO Flash Video HEIF IFF M2TS Matroska WebM QuickTime File Format RatDVD RealMedia RIFF WAV MOD and TOD VOB, IFO and BUP

Collaborations

Methods

Entropy
LPC
- ACELP
- CELP
- LSP
- WLPC
Lossless
Lossy
LZ
- DEFLATE
- LZW
PCM
- A-law
- µ-law
- ADPCM
- DPCM
Transforms
- DCT
- FFT
- MDCT
- Wavelet
  - Daubechies
  - DWT

Lists

See Compression methods for techniques and Compression software for codecs

Data compression methods

Lossless

Entropy type	Adaptive coding Arithmetic Asymmetric numeral systems Golomb Huffman Adaptive Canonical Modified Range Shannon Shannon–Fano Shannon–Fano–Elias Tunstall Unary Universal Exp-Golomb Fibonacci Gamma Levenshtein
Dictionary type	Byte pair encoding Lempel–Ziv 842 LZ4 LZJB LZO LZRW LZSS LZW LZWL Snappy
Other types	BWT CTW CM Delta Incremental DMC DPCM Grammar Re-Pair Sequitur LDCT MTF PAQ PPM RLE
Hybrid	LZ77 + Huffman Deflate LZX LZS LZ77 + ANS LZFSE LZ77 + Huffman + ANS Zstandard LZ77 + Huffman + context Brotli LZSS + Huffman LHA/LZH LZ77 + Range LZMA LZHAM RLE + BWT + MTF + Huffman bzip2

Lossy

Transform type	Discrete cosine transform DCT MDCT DST FFT Wavelet Daubechies DWT SPIHT
Predictive type	DPCM ADPCM LPC ACELP CELP LAR LSP WLPC Motion Compensation Estimation Vector Psychoacoustic

Audio

Concepts	Bit rate ABR CBR VBR Companding Convolution Dynamic range Latency Nyquist–Shannon theorem Sampling Silence compression Sound quality Speech coding Sub-band coding
Codec parts	A-law μ-law DPCM ADPCM DM FT FFT LPC ACELP CELP LAR LSP WLPC MDCT Psychoacoustic model

Image

Concepts	Chroma subsampling Coding tree unit Color space Compression artifact Image resolution Macroblock Pixel PSNR Quantization Standard test image Texture compression
Methods	Chain code DCT Deflate Fractal KLT LP RLE Wavelet Daubechies DWT EZW SPIHT

Video

Concepts	Bit rate ABR CBR VBR Display resolution Frame Frame rate Frame types Interlace Video characteristics Video quality
Codec parts	DCT DPCM Deblocking filter Lapped transform Motion Compensation Estimation Vector Wavelet Daubechies DWT

Theory

Community

Hutter Prize

People

Mark Adler

Audio compression formats

Non-compression

Lossless compression

Lossy compression

General

Bluetooth

Voice

Microsoft DirectPlay

Mobile phone

Generation 2

Generation 3/4

Professional mobile radio

Military

Video games

Text compression formats

Video compression formats

Lossless video compression

Lossless game codecs

Lossy compression

General

Intra-frame-only

Stereoscopic 3D

Video games

Real-time

See also

References

External links