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technology/files/media/video/AV1.md

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+---
+obj: codec
+---
+# AV1
+AV1 is a royalty-free video codec designed to be an alternative to the widely used [H.264](H.264.md) and HEVC [codecs](../Codecs.md). It was developed by the Alliance for Open Media, a consortium of technology companies including Google, Mozilla, and Netflix.
+Encoding can be done with [ffmpeg](../../../applications/media/ffmpeg.md) or av1an.
+
+## Key Features
+AV1 includes a range of features designed to provide high-quality video compression while remaining open and accessible to all users:
+-   High compression efficiency: AV1 is designed to provide high-quality video compression while using less bandwidth than other [codecs](../Codecs.md). This makes it ideal for streaming video over the internet.
+-   Scalable video technology: AV1 includes scalable video technology that allows it to adjust the quality of video based on available bandwidth. This ensures that users always receive the best possible video quality for their network connection.
+-   Royalty-free: Unlike other [codecs](../Codecs.md), AV1 is completely royalty-free. This means that anyone can use it without having to pay fees or royalties.
+-   Wide range of applications: AV1 is suitable for a wide range of applications, including live streaming, video-on-demand services, and video conferencing.
+-   Open and accessible: AV1 is an open standard, meaning that anyone can use it and contribute to its development. This makes it accessible to users of all skill levels.
+
+## Advantages
+AV1 offers a number of advantages over other video [codecs](../Codecs.md):
+-   Higher quality video: AV1 provides higher quality video than other [codecs](../Codecs.md), even at lower bitrates.
+-   More efficient compression: AV1 provides more efficient compression than other [codecs](../Codecs.md), allowing for faster download and upload times.
+-   Better streaming performance: AV1 is designed for streaming video over the internet, and provides better streaming performance than other [codecs](../Codecs.md).
+-   Wide compatibility: AV1 is compatible with a wide range of devices and platforms, including desktop and mobile devices.
+

technology/files/media/video/H.264.md

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+---
+obj: codec
+wiki: https://en.wikipedia.org/wiki/Advanced_Video_Coding
+---
+
+# H.264
+Advanced Video Coding (AVC), also referred to as H.264 or MPEG-4 Part 10, is a video compression standard based on block-oriented, motion-compensated coding. It supports a maximum resolution of 8K UHD.

technology/files/media/video/H.265.md

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+---
+obj: codec
+wiki: https://en.wikipedia.org/wiki/High_Efficiency_Video_Coding
+---
+# H.265
+High Efficiency Video Coding (HEVC), also known as H.265 and MPEG-H Part 2, is a video compression standard designed as part of the MPEG-H project as a successor to the widely used Advanced Video Coding (AVC, [H.264](H.264.md), or MPEG-4 Part 10). In comparison to AVC, HEVC offers from 25% to 50% better data compression at the same level of video quality, or substantially improved video quality at the same bit rate. It supports resolutions up to 8192×4320, including 8K UHD, and unlike the primarily 8-bit AVC, HEVC's higher fidelity Main 10 profile has been incorporated into nearly all supporting hardware.
+
+While AVC uses the integer discrete cosine transform (DCT) with 4×4 and 8×8 block sizes, HEVC uses both integer DCT and discrete sine transform (DST) with varied block sizes between 4×4 and 32×32. The High Efficiency Image Format (HEIF) is based on HEVC.

technology/files/media/video/VP9.md

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+---
+website: https://www.webmproject.org/vp9/
+obj: codec
+---
+# VP9
+VP9 is an open and royalty-free video coding format developed by Google.
+VP9 is the successor to VP8 and competes mainly with MPEG's High Efficiency Video Coding (HEVC/[H.265](H.265.md)). At first, VP9 was mainly used on Google's video platform YouTube. The emergence of the Alliance for Open Media, and its support for the ongoing development of the successor [AV1](AV1.md), of which Google is a part, led to growing interest in the format.