Editing List of codecs (section)

===Lossless compression===
{{Main|Lossless data compression}}
* '''Actively used'''
** <small>'''Most popular'''</small>
*** [[FLAC|Free Lossless Audio Codec]] (FLAC)<ref>[http://www.digitalpreservation.gov/formats/fdd/fdd000198.shtml FLAC (Free Lossless Audio Codec), Version 1.1.2] [[Library of Congress]]</ref>
**** libFLAC
**** FFmpeg
*** [[Apple Lossless Audio Codec]] (ALAC)
**** Apple QuickTime
**** libalac
**** FFmpeg
**** [[Apple Music]]<ref>{{Cite web|url=https://support.apple.com/en-us/HT212183|title = About lossless audio in Apple Music| date=25 October 2021 }}</ref>
*** [[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|Windows Media Audio Lossless]] (WMAL)
**** Windows Media Encoder
**** FFmpeg (decoder only)
** <small>'''Other'''</small>
*** [[DTS-HD Master Audio]], also known as DTS++ and DCA XLL
**** libdca (decoder only)
**** FFmpeg (decoder only)
*** [[Dolby TrueHD]]{{snd}} <small>Standard for [[DVD-Audio]] in Blu-ray (mathematically based on [[Meridian Lossless Packing|MLP]])</small>
**** FFmpeg
*** [[Meridian Lossless Packing]] (MLP), also known as [[Packed PCM]] (PPCM){{snd}} <small>Standard for [[DVD-Audio]] in DVD</small>
**** 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 [[MPEG-4 SLS|Scalable Lossless Coding]] (MPEG-4 SLS){{snd}} <small>Parts of it are used in [[HD-AAC]].</small>
**** 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).<ref>{{cite web|url=http://acmc2015.net/wp-content/uploads/2015/11/McDonald-2015-BFDLAC-A-FAST-LOSSLESS-AUDIO-COMPRESSION-ALGORITHM-FOR-DRUM-SOUNDS-OR-SIZE-ISN%E2%80%99T-EVERYTHING.pdf |title=BFDLAC: A Fast lossless Audio Compression Algorithm For Drum Sounds}}</ref> Ongoing development.
**** [[FXpansion]]'s BFD3 drum software. (2013-2017)
***L2HC - [[Huawei]]
**** Huawei Music
**** [[NearLink]]
**** [[Huawei FreeBuds]]<ref>{{Cite web |last=Matsui |first=Emiko |date=2023-09-19 |title=Huawei L2HC 3.0 delivers 1.5Mbps lossless sound quality, 4X faster than Apple's AAC |url=https://www.huaweicentral.com/huawei-l2hc-3-0-delivers-1-5mbps-lossless-sound-quality-4x-faster-than-apples-aac/ |access-date=2024-04-29 |website=Huawei Central |language=en-US}}</ref>
** <small>'''Oddball'''</small>
*** [[ATRAC#ATRAC Advanced Lossless|ATRAC Advanced Lossless]] (AAL){{snd}} <small>Extremely unpopular</small>
**** FFmpeg (lossy decoder only)
*** [[Direct Stream Transfer]] (DST) <small>- Only used for [[Direct Stream Digital]]</small>
**** SSC, DST, ALS and SLS reference software (ISO/IEC 14496-5:2001/Amd.10:2007)
**** FFmpeg (decoder only)
*** [[Original Sound Quality]] (OSQ) <small>- Only used in [[WaveLab]]</small>
**** FFmpeg (decoding only)
* '''Discontinued'''
** Lossless Audio (LA)<ref>{{Cite web|url=http://www.lossless-audio.com/index.htm|title=Lossless Audio Homepage|website=www.lossless-audio.com}}</ref> <small>– No update for 10+ years</small>
** [[Shorten (file format)|Shorten]] (SHN)<ref>[http://www.digitalpreservation.gov/formats/fdd/fdd000199.shtml Shorten Lossless Audio Compression Format (SHN), Version 3.5.1] [[Library of Congress]]</ref> <small>– Officially discontinued.</small>
*** libshn
*** FFmpeg (decoding only)
** [[Lossless Predictive Audio Compression]] (LPAC) <small>– Predecessor of MPEG-4 ALS</small>
** [[Lossless Transform Audio Compression]] (LTAC) <small>– Predecessor of LPAC</small>
** MPEG-1 Audio Layer III HD ([[mp3HD]]) <small>– Officially discontinued</small>
** RK Audio (RKAU)<ref>{{Cite web|url=http://wiki.hydrogenaud.io/index.php?title=RK_Audio|title=RK Audio - Hydrogenaudio Knowledgebase|website=wiki.hydrogenaud.io}}</ref> <small>– Officially discontinued</small>
*** FFmpeg (decoding only)