#VIDEO CODEC MEANING ANDROID#
#VIDEO CODEC MEANING PROFESSIONAL#
#VIDEO CODEC MEANING SERIES#

Note: Apple devices including iPhones, iPads, and Macs donвЂ™t support AV1 natively the company is opting to support HEVC instead. Platforms/Operating Systems with AV1 Support Microsoft Edge (requires the AV1 Video Extension add-on).So, we should see a lot of smart TVs come out with hardware support for AV1 decoding. The deadline for compliance was earlier this year in March.

#VIDEO CODEC MEANING ANDROID#

WhatвЂ™s more, Google has mandated that any device that wants to use Android TV has to have an AV1 decoder built-in.

#VIDEO CODEC MEANING SERIES#

Samsung Galaxy S21 series (Exynos 2100).LetвЂ™s take a look at which devices, services, and platforms support the AV1 codec as of now. This is primarily due to the significantly lower bit rates that AV1 requires for high quality content as compared to HEVC, H.265 or H.264 encoded videos. On the other hand, HEVC or H.264 take advantage of hardware-based encoding which reduces the processing time significantly.Д®ven though AV1 has an issue with hardware decoding, a number of platforms, devices, and services have started supporting the AV1 coding. This is mainly because the AV1 codec requires hardware encoding and currently, there are very few chips that support hardware-based AV1 encoding. Basically, to export a video in AV1 codec, it will take considerably more time - over double - than a HEVC/H.264 one. While in terms of data compression, AV1 is much better, if we look at the time required to encode a video, it takes much more time than HEVC or H.264. Having said that, not everything is rosy about AV1 and there is one vital issue that is hampering its adoption across the web.

AV1 is 50% and 25% better than H.264 and VP9 respectively. And if you compare H.264 with AV1 then the gap becomes even wider. Bear in mind, the HEVC codec is not the top player in online streaming, instead, its older version H.264 along with GoogleвЂ™s in-house VP9 codec is used almost everywhere. Companies will have to store less data on their servers and consumers can save data even while watching high-definition content. It means that for the same video quality, the AV1 codec reduces the bitrate by 30% which is a significant dip for online streaming companies.ДЄ lower bitrate means lower bandwidth which brings down the server cost for companies like YouTube, Netflix, etc. In this sense, the AV1 codec is 30% better than HEVC at data compression.

If you manage to lower the bitrate without affecting the video quality then you have got a very good data compression algorithm. Moving up, level 4.0 supports 1920Г—1080 (Full HD resolution) at 30FPS, level 5.1 supports 3840Г—2160 at 60FPS, while level 6.2 supports 7680Г—4320 (8K) at 120FPS.ДЇor video codecs, there are two metrics that let you gauge the performance - the quality and the bitrate. So, for example, level 2.0 supports resolutions such as 426Г—240 at 30FPS. These levels specify the MaxPicSize, MaxHSize, MaxVSize, Decode Rate, Header, bit-rate and more for the decoders - indirectly dictating the resolutions that can be decoded with the AOMedia Video 1 codec. There are a total of 14 levels defined so far within the AV1 spec (ranging between 2.0 and 6.3).

#VIDEO CODEC MEANING PROFESSIONAL#

Whereas, the Professional profile supports 8 bit, 10 bit, and 12 bit depth, and adds 4:2:2 (half), and 4:4:4 chroma subsampling. The High profile supports 4:0:0, 4:2:0, and 4:4:4 chroma sampling in 8 bit or 10 bit depth. The Main profile supports 4:0:0 (greyscale) and 4:2:0 (quarter) chroma sampling in 8 bit or 10 bit depth. Within itself, the AV1 codec has three profiles for decoders, as well as multiple decoder levels ranging from 2.0 to 6.3.ДЄs mentioned above, there are three profiles within the AV1 specification - Main, High, and Professional. However, this might increase in the future as more levels are defined. The AV1 codec can currently support up to 8K at 120FPS video. These partitions are then quantized and coded into a bit stream.Дecoders pretty much take this encoded stream of information and run it back, with things like predictions, loop filtering, and film grain synthesis to form an output frame. These patterns can be 4Г—4 (recursive), horizontal split (4:1), vertical split (1:4), or T-shaped patterns that were originally developed for the VP10 codec. These are called вЂSuperblocksвЂ™ and are further partitioned into smaller blocks according to different patterns. For starters, the encoder partitions frames into same sized blocks of 128Г—128 or 64Г—64 pixels. To give you a really simple explanation of the process that encoders use while encoding videos with the AV1 codec, let me explain it to you in layman terms. However, it adds more coding options for encoders which allows them to better adapt to different types of inputs. The AV1 codec is based on GoogleвЂ™s VP9 codec.

Video codec meaning