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2. 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 ...

3. List of open-source codecs - Wikipedia

   en.wikipedia.org/wiki/List_of_open-source_codecs

   x264 – H.264/MPEG-4 AVC implementation. x264 is not a codec (encoder/decoder); it is just an encoder (it cannot decode video). OpenH264 – H.264 baseline profile encoding and decoding; OpenVVC [1] an VVC /H.266 Real Time-Decoder for Mac OS, Windows, Linux and Android and special Version of FFmpeg, [2] which was used for Ateme Satellite ...

4. MP4 file format - Wikipedia

   en.wikipedia.org/wiki/MP4_file_format

   MPEG-4 Part 14, or MP4, is a digital multimedia container format most commonly used to store video and audio, but it can also be used to store other data such as subtitles and still images. Like most modern container formats, it allows streaming over the Internet. The only filename extension for MPEG-4 Part 14 files as defined by the ...

5. List of codecs - Wikipedia

   en.wikipedia.org/wiki/List_of_codecs

   MPEG-4 Part 2 (MPEG-4 Advanced Simple Profile) 3ivx; DivX; 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) MainConcept; Nero Digital; QuickTime H.264; Sorenson AVC Pro codec, Sorenson's new implementation ...

6. MP3 - Wikipedia

   en.wikipedia.org/wiki/MP3

   An MP3 coded with MPEG-2 results in half of the bandwidth reproduction of MPEG-1 appropriate for piano and singing. A third generation of "MP3" style data streams (files) extended the MPEG-2 ideas and implementation but was named MPEG-2.5 audio since MPEG-3 already had a different meaning. This extension was developed at Fraunhofer IIS, the ...

7. Comparison of audio coding formats - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_audio_coding...

   32–88 kbit/s in 4 kbit/s steps, 88–128 kbit/s in 8 kbit/s steps 16 bit 40 ms Yes No Yes: only in MPEG-4 Part 12 container: Yes: only in MPEG-4 Part 12 container: G.721: ADPCM, Lossy: 8 kHz 32 kbit/s 13 bit Yes No No No G.722: sub-band ADPCM, Lossy: 16 kHz 64 kbit/s (comprises 48, 56 or 64 kbit/s audio and 16, 8 or 0 kbit/s auxiliary data ...

8. Audio file format - Wikipedia

   en.wikipedia.org/wiki/Audio_file_format

   MPB contains AAC or ALAC encoded audio in an MPEG-4 container. (More details below.) .act: ACT is a lossy ADPCM 8 kbit/s compressed audio format recorded by most Chinese MP3 and MP4 players with a recording function, and voice recorders .aiff: Apple: A standard uncompressed CD-quality, audio file format used by Apple.

9. HandBrake - Wikipedia

   en.wikipedia.org/wiki/HandBrake

   HandBrake is a free and open-source transcoder for digital video files. ... MPEG-4 Part 14 (MP4) MPEG Transport Stream ... MPEG-1 or MPEG-2 Audio Layer III (MP3) Opus ...