{"id":42531,"date":"2026-01-28T14:33:31","date_gmt":"2026-01-28T09:03:31","guid":{"rendered":"https:\/\/www.mirrorfly.com\/blog\/?p=42531"},"modified":"2026-03-24T15:36:41","modified_gmt":"2026-03-24T10:06:41","slug":"video-codecs","status":"publish","type":"post","link":"https:\/\/www.mirrorfly.com\/blog\/video-codecs\/","title":{"rendered":"Video Codecs and Encoding: Types, Workflow & Trends [2026]"},"content":{"rendered":"\n
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A 2-hour live meeting streams without delay. A 10-second reel plays the moment you upload it. So why don\u2019t these videos stutter, buffer, or slow down, despite their huge file sizes?<\/p>\n\n\n\n

Video Codecs <\/strong>reduces the audio and video file size making it easy to stream and store – without affecting the quality.<\/p>\n\n\n\n

In this guide, you\u2019ll learn what video codecs are, how they work behind every video, the various types our mobiles and computers use today, and some really interesting tips to choose the right codec for your videos.<\/p>\n\n\n\n

<\/span>What Is A Video Codec?<\/strong><\/span><\/h2>\n\n\n\n
\"Video
How a video codec compresses and decompresses video for playback.<\/figcaption><\/figure>\n\n\n\n

Video codec is a software or system that manages visual content by compressing or decompressing data for easier storage or faster streaming over networks.<\/p>\n\n\n\n

The technology uses algorithms to reduce massive voice and video files smaller.<\/p>\n\n\n\n

Codecs convert the raw data into byte-sized sequences so they can easily transmit across networks and reach the end-points as voice and video.<\/p>\n\n\n\n

<\/span>Codecs Vs Containers<\/strong><\/span><\/h2>\n\n\n\n

In video apps,<\/p>\n\n\n\n

\"Video
How codecs and containers handle video data during a call<\/figcaption><\/figure>\n\n\n\n

Video Format = Codec + Container<\/strong><\/p>\n\n\n\n

Codec<\/strong> is a software that uses algorithms to encode and decode video and audio data. The key purpose of a codec is to simplify parts of the files and make them more manageable.<\/p>\n\n\n\n

Codec = Encoder + Decoder<\/strong><\/p>\n\n\n\n

It removes the redundant information in data, converts them into byte sequences and decompresses back into playable video and audio.<\/p>\n\n\n\n

On the other hand, a Container is the file format or wrapper of the video and audio. It organizes the byte-sized content that the codec generates after compression.<\/p>\n\n\n\n

Container = File Format \u2192 File Extension (.mp4, .mov)<\/strong><\/p>\n\n\n\n

Container wraps the video streams and meta data together in a single file. The meta data usually contains related information like bitrate, resolution, device type, sub-titles and date of creation.<\/p>\n\n\n\n

Here is a practical scenario explaining the difference between a codec and a container in video apps:<\/p>\n\n\n\n

<\/span>3 Types Of Video Compression<\/strong><\/span><\/h2>\n\n\n\n

Video compression, performed by codecs, relies on methods to reduce file size and manage quality.<\/p>\n\n\n\n

There are 3 primary types of video compression: lossy compression, lossless compression and hybrid\/ enhancement layers.<\/strong><\/p>\n\n\n\n

1. Lossy Compression<\/strong><\/h3>\n\n\n\n
\"Lossy<\/figure>\n\n\n\n

Lossy compression reduces file size by removing redundant data<\/strong> from the original file.<\/p>\n\n\n\n

It uses a technique known as Quantization<\/strong> to discard the high-frequency coefficient identified in the prediction error.<\/p>\n\n\n\n

This method is suitable when the bandwidth is limited and is commonly used by modern codecs like H.264\/AVC and H.265\/HEVC.However, a key drawback of this method is that the output video looks pixelated.<\/strong><\/p>\n\n\n\n

2. Lossless Compression<\/strong><\/h3>\n\n\n\n
\"Lossless<\/figure>\n\n\n\n

Lossless compression is a technique used in reducing the file size without any loss of quality.<\/strong><\/p>\n\n\n\n

This method uses a technique called entropy coding.<\/strong> Typically, it reduces the statistical redundancy by assigning shorter codes to frequent symbols and longer codes to less frequent symbols.<\/p>\n\n\n\n

Lossless compression is majorly used in professional post-production workflows and codecs like FLAC (Free Lossless Audio Codec) adopt this technique to produce high-quality outputs where file-size is not a concern.<\/strong><\/p>\n\n\n\n

3. Hybrid \/ Enhancement Layers<\/strong><\/h3>\n\n\n\n

In this method, codecs use a combination of 2 compression types: spatial<\/strong> (individual images) and temporal<\/strong> (sequence of images).<\/p>\n\n\n\n

A. Inter-Frame Compression (Temporal Compression)<\/strong><\/h4>\n\n\n\n
\"I-frame,<\/figure>\n\n\n\n

Inter-frame compression is a technique where the codecs store some of the frames in the video as key frames<\/strong> (I-frames) and the other frames in-between the key frames as delta frames.<\/strong><\/p>\n\n\n\n

When stored in this method, the codecs can identify the redundancy in between the consecutive frames. This sequence of frames is known as Group of Pictures (GOP),<\/strong> and it typically contains 3 types of frames:<\/p>\n\n\n\n