What is CODEC?

• CODEC is a device or computer program for encoding or decoding.
• CODEC program is used for compression (reduces the number of bytes consumed by the file) and decompression (reset all the removed pixels / bits).
• CODEC device is used for the converting the analog signal / video to digital signal / video and vice-versa.
• CODEC's are used in videoconferencing, streaming media, and video editing applications.

Why Do We Need CODEC's?

• Because audio and video files are larger in size and it will take to much time to transfer and downloading from one place to the another place.
• CODEC'S will helped to speed up the transfer and downloading a file with less time.
• It also used for minimized the storage space.

Types of CODEC's

1. Lossy CODEC's

• Lossy CODEC'S are used to compress the file by removing the unwanted spaces and redundant data.
• In Lossy CODEC's reduce the quality of data (Visually,audible or both) / video during the compression.
• This will mainly used when we transfer the files through mail.

2.Lossless CODEC's

• Lossless CODEC used for archiving data in a compressed form while retaining all information present in the original stream.
• It will not loss the clarity of data.
• Lossless CODEC's are used where the Quality of data is important than size of a file.
• Every single bit or pixel of a file remains same after decompressing.

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