#Video codec software
However, in addition to hardware codecs that are manufactured by Polycom and Cisco Systems, many cloud based software tools also enable video conferencing. Codecs are intended to make video and audio conferencing cross-compatible between hardware systems. While Codecs are often invisible to users, they are extremely important because without them video and audio conferencing would be impossible. The decode process requires a codec also and so coder / decoder functions require devices to include codecs whether they are hardware, software or cloud based. A Codec that allows for the ingest of audio and video is “encoding” those signals into a form that can then be decoded after movement or manipulation. This means that through the use of a Codec, information as represented by sound and video can be encoded and them moved and transformed. That electronic form of sound and video can be transmitted, copied, moved and rendered into other forms. However, there are many different types of codecs including some that are only for audio.Ī Codec allows the ingesting of sound and video into electronic form. It is a standards based codec that many manufacturers have adopted and therefore with this codec, broad cross-compatibility between video enabled devices is possible. The H.264 codec is used in many applications from DVD's to YouTube videos. Coding and decoding video and audio signals is required to convert video and sound into bits of information that can be transmitted, and translated. There are many variants of codecs and they all perform this "encode" and "decode" function with some form of compression or reduction in size of source video and/or audio.Ī Codec can be software based or it can be hardware based. A piece of each word is used to create the commonly used word “Codec”. The word Codec is a combination of two words "coder" and "decoder".
#Video codec iso
The most recent versions of the codec objects also enable access to some legacy codecs, including Windows Media Video 7 and 8, Windows Media Screen 7, the older Microsoft MPEG-4 codecs, and the Microsoft ISO MPEG-4 codecs.Tips and Training > Definitions > Codec What is a Codec? This codec is often used for software training or support by recording monitor images while computer applications are being used. Video codec optimized for encoding sequential screen shots from computer monitors. For content that is mixed music and speech, this codec can dynamically change the encoding algorithm used, to get optimal quality.Ī video codec that supports four categories of encoded content: Simple Profile, Main Profile, Advanced Profile, and Image. This is the preferred codec for streams consisting mostly of spoken words. CodecĪn audio codec that supports three categories of encoded content: Standard, Professional, and Lossless.Īudio codec optimized for encoding the human voice at high compression ratios. The following table describes the intended uses of the Windows Media codecs. The algorithms used to compress and decompress data for spoken words differ from the algorithms used to compress and decompress music data. Not only are there different codecs for audio and for video, but also different codecs for different kinds of content that you might want to put into an audio or video file. In some cases the COM objects occupy the same dynamically linked library (DLL).Įvery codec object implements two separate but similar interfaces: InterfaceĬompatible with Microsoft Media Foundation. A codec is usually implemented as a pair of COM objects: one for encoding content, and another for decoding content. The term codec is an amalgamation of the terms compressor and decompressor. For a technical overview of the features of the Windows Media codecs, see About the Windows Media Codecs. This documentation is primarily for developers who want to use Windows Media codecs in their C++-based media applications.