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Codec

Index Codec

A codec is a device or computer program for encoding or decoding a digital data stream or signal. [1]

55 relations: Advanced Systems Format, Audio codec, Audio signal processing, Audio Video Interleave, Bit rate, Blu-ray, CD-ROM, Companding, Comparison of audio coding formats, Comparison of video codecs, Comparison of video container formats, Computer program, Data compression, Data stream, Decoding methods, Delta modulation, Digital container format, Digital signal processing, DV, DVD, Editing, Encoder, Encryption, Hard disk drive, International Organization for Standardization, ISO base media file format, Latency (audio), List of codecs, List of open-source codecs, Lossless compression, Lossy compression, Matroska, Modem, MP3, MPEG program stream, MPEG transport stream, MPEG-4 Part 14, Multimedia, Non-volatile memory, Ogg, Opus (audio format), Portmanteau, Pulse-code modulation, QuickTime, RealMedia, Signal, Sound, Streaming media, Telephone company, Transcoding, ..., Video, Video codec, Video editing, Videotelephony, Write once read many. Expand index (5 more) »

Advanced Systems Format

Advanced Systems Format (formerly Advanced Streaming Format, Active Streaming Format) is Microsoft's proprietary digital audio/digital video container format, especially meant for streaming media.

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Audio codec

An audio codec is a codec (a device or computer program capable of encoding or decoding a digital data stream) that encodes or decodes audio.

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Audio signal processing

Audio signal processing or audio processing is the intentional alteration of audio signals often through an audio effect or effects unit.

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Audio Video Interleave

Audio Video Interleave (also Audio Video Interleaved), known by its initials AVI, is a multimedia container format introduced by Microsoft in November 1992 as part of its Video for Windows software.

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Bit rate

In telecommunications and computing, bit rate (bitrate or as a variable R) is the number of bits that are conveyed or processed per unit of time.

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Blu-ray

Blu-ray or Blu-ray Disc (BD) is a digital optical disc data storage format.

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CD-ROM

A CD-ROM is a pre-pressed optical compact disc which contains data.

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Companding

In telecommunication and signal processing companding (occasionally called compansion) is a method of mitigating the detrimental effects of a channel with limited dynamic range.

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Comparison of audio coding formats

The following tables compare general and technical information for a variety of audio coding formats.

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Comparison of video codecs

Α video codec is software or a device that provides encoding and decoding for digital video, and which may or may not include the use of video compression and/or decompression.

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Comparison of video container formats

This table compares features of container formats (video file formats).

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Computer program

A computer program is a collection of instructions for performing a specific task that is designed to solve a specific class of problems.

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Data compression

In signal processing, data compression, source coding, or bit-rate reduction involves encoding information using fewer bits than the original representation.

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Data stream

In connection-oriented communication, a data stream is a sequence of digitally encoded coherent signals (packets of data or data packets) used to transmit or receive information that is in the process of being transmitted.

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Decoding methods

In coding theory, decoding is the process of translating received messages into codewords of a given code.

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Delta modulation

A delta modulation (DM or Δ-modulation) is an analog-to-digital and digital-to-analog signal conversion technique used for transmission of voice information where quality is not of primary importance.

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Digital container format

A container or wrapper format is a metafile format whose specification describes how different elements of data and metadata coexist in a computer file.

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Digital signal processing

Digital signal processing (DSP) is the use of digital processing, such as by computers or more specialized digital signal processors, to perform a wide variety of signal processing operations.

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DV

DV is a format for storing digital video.

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DVD

DVD (an abbreviation of "digital video disc" or "digital versatile disc") is a digital optical disc storage format invented and developed by Philips and Sony in 1995.

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Editing

Editing is the process of selecting and preparing written, visual, audible, and film media used to convey information.

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Encoder

An encoder is a device, circuit, transducer, software program, algorithm or person that converts information from one format or code to another, for the purposes of standardization, speed or compression.

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Encryption

In cryptography, encryption is the process of encoding a message or information in such a way that only authorized parties can access it and those who are not authorized cannot.

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Hard disk drive

A hard disk drive (HDD), hard disk, hard drive or fixed disk is an electromechanical data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material.

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International Organization for Standardization

The International Organization for Standardization (ISO) is an international standard-setting body composed of representatives from various national standards organizations.

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ISO base media file format

ISO base media file format (ISO/IEC 14496-12 – MPEG-4 Part 12) defines a general structure for time-based multimedia files such as video and audio.

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Latency (audio)

Latency refers to a short period of delay (usually measured in milliseconds) between when an audio signal enters and when it emerges from a system.

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List of codecs

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

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List of open-source codecs

This is a listing of open-source implementations of media formats—usually called codecs.

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Lossless compression

Lossless compression is a class of data compression algorithms that allows the original data to be perfectly reconstructed from the compressed data.

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Lossy compression

In information technology, lossy compression or irreversible compression is the class of data encoding methods that uses inexact approximations and partial data discarding to represent the content.

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Matroska

The Matroska Multimedia Container is an open standard, free container format, a file format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file.

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Modem

A modem (modulator–demodulator) is a network hardware device that modulates one or more carrier wave signals to encode digital information for transmission and demodulates signals to decode the transmitted information.

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MP3

MP3 (formally MPEG-1 Audio Layer III or MPEG-2 Audio Layer III) is an audio coding format for digital audio.

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MPEG program stream

Program stream (PS or MPEG-PS) is a container format for multiplexing digital audio, video and more.

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MPEG transport stream

MPEG transport stream (transport stream, MPEG-TS, MTS or TS) is a standard digital container format for transmission and storage of audio, video, and Program and System Information Protocol (PSIP) data.

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MPEG-4 Part 14

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.

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Multimedia

Multimedia is content that uses a combination of different content forms such as text, audio, images, animations, video and interactive content.

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Non-volatile memory

Non-volatile memory (NVM) or non-volatile storage is a type of computer memory that can retrieve stored information even after having been power cycled.

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Ogg

Ogg is a free, open container format maintained by the Xiph.Org Foundation.

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Opus (audio format)

Opus is a lossy audio coding format developed by the Xiph.Org Foundation and standardized by the Internet Engineering Task Force, designed to efficiently code speech and general audio in a single format, while remaining low-latency enough for real-time interactive communication and low-complexity enough for low-end embedded processors.

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Portmanteau

A portmanteau or portmanteau word is a linguistic blend of words,, p. 644 in which parts of multiple words or their phones (sounds) are combined into a new word, as in smog, coined by blending smoke and fog, or motel, from motor and hotel.

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Pulse-code modulation

Pulse-code modulation (PCM) is a method used to digitally represent sampled analog signals.

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QuickTime

QuickTime is an extensible multimedia framework developed by Apple Inc., capable of handling various formats of digital video, picture, sound, panoramic images, and interactivity.

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RealMedia

RealMedia is a proprietary multimedia container format created by RealNetworks.

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Signal

A signal as referred to in communication systems, signal processing, and electrical engineering is a function that "conveys information about the behavior or attributes of some phenomenon".

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Sound

In physics, sound is a vibration that typically propagates as an audible wave of pressure, through a transmission medium such as a gas, liquid or solid.

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Streaming media

Streaming media is multimedia that is constantly received by and presented to an end-user while being delivered by a provider.

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Telephone company

A telephone company, also known as a telco, telephone service provider, or telecommunications operator, is a kind of communications service provider (CSP) (more precisely a telecommunications service provider or TSP) that provides telecommunications services such as telephony and data communications access.

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Transcoding

Transcoding is the direct digital-to-digital conversion of one encoding to another, such as for movie data files (e.g., PAL, SECAM, NTSC), audio files (e.g., MP3, WAV), or character encoding (e.g., UTF-8, ISO/IEC 8859).

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Video

Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media.

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Video codec

A video codec is an electronic circuit or software that compresses or decompresses digital video.

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Video editing

Video editing is the manipulation and arrangement of video shots.

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Videotelephony

Videotelephony comprises the technologies for the reception and transmission of audio-video signals by users at different locations, for communication between people in real-time.

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Write once read many

Write once read many (WORM) describes a data storage device in which information, once written, cannot be modified.

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CODEC, Codec Pack, Codecs, Essence (media), Lower bit rate codecs, Media Codec, Media codec, Multimedia codec, Software codec.

References

[1] https://en.wikipedia.org/wiki/Codec

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