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List of codecs The following is a list of compression formats and related codecs .
Audio codecs Main article:
Audio codec Non-compression formats 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 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) Pulse-amplitude modulation (PAM) Lossless data compression Apple Lossless Audio Codec (ALAC)ATRAC Advanced Lossless (AAL) Direct Stream Transfer (DST)MPEG-4 DST reference software (ISO/IEC 14496-5:2001/Amd.10:2007) Dolby TrueHD – Optional lossless surround sound format used by HD DVD and Blu-ray , it uses MLP but adds higher sample rates, bit rates, and more channels DTS-HD Master Audio – Optional lossless surround sound format used by HD DVD and Blu-ray , it was previously known as DTS++ and DTS-HD Free Lossless Audio Codec (FLAC) Lossless Audio (LA) Lossless Predictive Audio Compression (LPAC)Lossless Transform Audio Compression (LTAC) MPEG-4 Audio Lossless Coding (MPEG-4 ALS)MPEG-4 ALS reference software (ISO/IEC 14496-5:2001/Amd 10:2007/Cor 3:2009) FFmpeg (decoding only) MPEG-4 Scalable Lossless Coding (MPEG-4 SLS, also used in audio profile HD-AAC)MPEG-4 SLS reference software (ISO/IEC 14496-5:2001/Amd 10:2007) Meridian Lossless Packing (MLP), also known as Packed PCM (PPCM) , it is as Dolby TrueHD the standard lossless compression method for DVD-Audio content Monkey's Audio (APE)mp3HD OptimFROG (OFR)Original Sound Quality (OSQ) RealAudio LosslessRK Audio (RKAU) Shorten (SHN)TAK True Audio (TTA)WavPack (WV)Windows Media Audio 9 LosslessFlip4Mac WMV (QuickTime) FFmpeg (decoder only) Lossy data compression Main article: Lossy data compression
General Adaptive Differential (or Delta) pulse-code modulation (ADPCM, see Pulse-code modulation) Adaptive Rate-Distortion Optimised sound codeR (ARDOR) Adaptive Transform Acoustic Coding (ATRAC, used in MiniDisc devices) apt-X Dolby Digital (A/52, AC3)FFmpeg liba52 (decoder only) DTS Coherent Acoustics (DTS, Digital Theatre System Coherent Acoustics) Impala FORscene audio codecITU standards:G.719 G.722 G.722.1 and G.722.1 Annex Clibg722_1 libsiren (part of libmsn and msn-pecan) G.722.23GPP TS 26.173 - AMR-WB speech Codec (C-source code) - reference implementation[ 1] opencore-amr (decoder) FFmpeg (decoding only) MPEG-1 Audio and MPEG-2 Audio MPEG-4 AudioAdvanced Audio Coding (AAC), (MPEG-4 Part 3 subpart 4), HE-AACFAAC, 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 Opus Perceptual audio coder QDesign Siren 7libg722_1 libsiren (part of libmsn and msn-pecan) Siren 14 Siren 22 TwinVQ FFmpeg (decoder only) NTT TwinVQ Encoder, NTT TwinVQ Player Vorbis aoTuV FFmpeg libvorbis Tremor (decoder only) Windows Media Audio (WMA) Voice Main article: Speech encoding
(low bit rate, optimized for speech)
Advanced Multi-Band Excitation (AMBE) Algebraic Code Excited Linear Prediction (ACELP) CDMA compression formats and codecsEnhanced Variable Rate Codec (EVRC) Enhanced Variable Rate Codec B (EVRC-B) QCELP (Qualcomm Code Excited Linear Prediction) Selectable Mode Vocoder (SMV) Variable Multi Rate – WideBand (VMR-WB) CELT Code Excited Linear Prediction (CELP) Continuously variable slope delta modulation (CVSD) Dialogic ADPCM (VOX)Digital Speech Standard (DSS) FS-1015 (LPC-10) FS-1016 (CELP) ITU standards:G.711 (a-law and μ-law companding), also known as PCM of voice frequenciesG.711.0 (G.711 LLC) G.711.1 G.718 G.719 G.721 (superseded by G.726) G.722 (SB-ADPCM)G.722.1 G.722.2 (AMR-WB)3GPP TS 26.173 - AMR-WB speech Codec (C-source code) - reference implementation[ 1] 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) G.726 (ADPCM)G.728 (LD-CELP)G.729 (CS-ACELP)G.729a G.729d G.729.1 GSM compression formats and codecs:Full Rate (GSM 06.10)libgsm FFmpeg (decoder only) Half Rate (GSM 06.20) Enhanced Full Rate (GSM 06.60) Adaptive Multi-Rate (AMR)AMR-NB3GPP TS 26.073 - AMR speech Codec (C-source code) - reference implementation[ 2] 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-WB3GPP TS 26.173 - AMR-WB speech Codec (C-source code) - reference implementation[ 1] opencore-amr (decoder), from OpenCORE (one may compile ffmpeg with—enable-libopencore-amrwb to incorporate the OpenCORE lib) vo-amrwbenc (encoder), from Android VisualOn (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[ 3] Harmonic Vector Excitation Coding (HVXC) Internet Low Bit Rate Codec (iLBC) Improved Multi-Band Excitation (IMBE) internet Speech Audio Codec (iSAC)IP-MR used by SPIRIT DSP and many others Mixed Excitation Linear Prediction (MELP) Nellymoser Asao Codec PT716, PT716plus PT724 RALCWI (Robust Advanced Low Complexity Waveform Interpolation) Relaxed Code Excited Linear Prediction (RCELP) RTAudio - used by Microsoft Live Communication Server SILK - used by Skype Speex , patent freeSVOPC - used by Skype Triple Rate CODER (TRC) - used in some pocket recorders. Vector Sum Excited Linear Prediction (VSELP) OpenLPC Voxware - used by Microsoft DirectPlay Truespeech PDC-HR (PSI-CELP) used in ARIB RCR STD-27 (PDC) Broadcom BroadVoice16/BroadVoice32 Text codecs BiM Continuous Media Markup Language (CMML) MPEG-4 Part 17 (e.g. 3GPP Timed Text) Ogg Kate Ogg Writ ttyrec Video codecs Main article:
Video codec Alpary Animation (qtrle) ArithYuv AVIzlibLCL (VfW codec) MSZH and ZLIB [ 5] FFmpeg CamStudio GZIP/LZO Dirac losslesslibdirac FFmpeg (decoder only) FastCodec FFV1 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 . H264 losslessx264 (encoder only)FFmpeg (decoder only, uses x264 for encoding) 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. JPEG 2000 losslessLagarith A more up-to-date fork of Huffyuv is available as Lagarith.Lagarith Codec (VfW codec) FFmpeg (decoder only) LOCO LZO MSU Lossless Video Codec PNG SheerVideo Snow lossless TechSmith Screen Capture Codec (TSCC)[ 6] Ut Video [ 7] [ 8] VMNC[ 9] YULS ZMBV (Zip Motion Block Video) CodecZRLE used by VNC Blackmagic codec Lossy compression General Intra-only Codecs MJPEG FFmpeg Morgan Multimedia M-JPEG Pegasus PICVideo M-JPEG MainConcept M-JPEG JPEG 2000 intra frame video codeclibopenjpeg FFmpeg (experimental) Apple ProRes 422/4444 AVC-Intra DV VC-2 SMPTE standard (a.k.a. Dirac Pro)Schrödinger dirac-research VC-3 SMPTE standard GoPro CineForm REDCODE RAW - used by Red camerasGrass Valley Codec
See also References External links Information theory Lossless
Entropy encoding Arithmetic Golomb Huffman Adaptive Canonical Modified Range Shannon–Fano Shannon–Fano–Elias Tunstall UniversalGamma Exp-Golomb Fibonacci Levenstein Dictionary Others
Audio
Image
Terms Methods RLE Fractal Wavelet EZW SPIHT LP DCT Chain code KLT Others
Video
See Compression formats for formats and Compression software for codecs
Tags: List of codecs, Computer Informatics, 485, List of codecs The following is a list of compression formats and related codecs, Contents Audio codecs 1.1 Non compression formats 1.2 Lossless data compression 1.3 Lossy data compression 1.3.1 General 1.3.2 Voice 2 Text codecs 3 Video codecs 3.1 Lossless compression [ 4 ] 3.2 Lossy compression 3.2.1 General 3.2.2 Intra only Codecs 4 See also 5 References 6 External links Audio codecs Main ar, List of codecs, English, Instruction Examples, Tutorials, Reference, Books, Guide reader information science, pts-ptn.net
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