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  2. List of open-source codecs - Wikipedia

    en.wikipedia.org/wiki/List_of_open-source_codecs

    There is also FAAC, the same project's encoder, but it is proprietary (but still free of charge). libgsm – Lossy compression ; opencore-amr – Lossy compression (AMR and AMR-WB) liba52 – a free ATSC A/52 stream decoder (AC-3) libdca – a free DTS Coherent Acoustics decoder; Codec2 – Low bitrate compression, primarily voice

  3. Zamzar - Wikipedia

    en.wikipedia.org/wiki/Zamzar

    Zamzar is currently free to use, but there is a limit of two conversions per hour for files up to 100MB. Users can pay a monthly subscription in order to access preferential features, such as unlimited file conversions, online file management, shorter response and queuing times and other benefits.

  4. Comparison of video container formats - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_video...

    Royalty-free Yes Yes Yes Yes Yes No Yes No No Vorbis: Lossy: 2000-05 Open source [93] Yes Private No No Tricky [δ] No No No No MP2: Lossy: 1991-12 Patent-free [ε] Yes Yes No Yes Yes Yes Yes No No MP1: Lossy: 1991-12 Expired patents Yes Yes No Yes Yes Yes Yes No No QDesign Music 1 and 2 Lossy: 1998 Proprietary: QuickTime [γ] No Yes No No No ...

  5. VP8 - Wikipedia

    en.wikipedia.org/wiki/Vp8

    VP8 is an open and royalty-free video compression format released by On2 Technologies in 2008.. Initially released as a proprietary successor to On2's previous VP7 format, VP8 was released as an open and royalty-free format in May 2010 after Google acquired On2 Technologies.

  6. MPEG-4 - Wikipedia

    en.wikipedia.org/wiki/MPEG-4

    MPEG-4 is a group of international standards for the compression of digital audio and visual data, multimedia systems, and file storage formats. It was originally introduced in late 1998 as a group of audio and video coding formats and related technology agreed upon by the ISO/IEC Moving Picture Experts Group (MPEG) (ISO/IEC JTC 1/SC29/WG11) under the formal standard ISO/IEC 14496 – Coding ...

  7. HandBrake - Wikipedia

    en.wikipedia.org/wiki/HandBrake

    In September 2006, Rodney Hester and Chris Long had been independently working to extract the H.264 video compression format from Apple's iPod firmware (1.2) through reverse engineering before meeting on the HandBrake forum. Since their work was complementary, they began working together to develop an unstable, but still compileable, release of ...

  8. zstd - Wikipedia

    en.wikipedia.org/wiki/Zstd

    Zstd at its maximum compression level gives a compression ratio close to lzma, lzham, and ppmx, and performs better [vague] than lza or bzip2. [ improper synthesis? ] [ 9 ] [ 10 ] Zstandard reaches the current Pareto frontier , as it decompresses faster than any other currently available algorithm with similar or better compression ratio.

  9. MPEG-4 SLS - Wikipedia

    en.wikipedia.org/wiki/MPEG-4_SLS

    MPEG-4 SLS, or MPEG-4 Scalable to Lossless as per ISO/IEC 14496-3:2005/Amd 3:2006 (Scalable Lossless Coding), [1] is an extension to the MPEG-4 Part 3 (MPEG-4 Audio) standard to allow lossless audio compression scalable to lossy MPEG-4 General Audio coding methods (e.g., variations of AAC).

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