Comparison Of Video Codecs
A video codec is software or a device that provides encoding and decoding which may or may not include the use of video compression and/or decompression for digital video.
The compression may employ lossy data compression, so quality measurement issues become important. Shortly after the compact disc became widely available as a digital-format replacement for analog audio, it became feasible to also store and use video in digital form. A variety of technologies soon emerged to do so. The primary goal for most methods of compressing video is to produce video that most closely approximates the fidelity of the original source and simultaneously deliver the smallest file size possible. However, there are also several other factors that can be used as a basis for comparison.
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