H.266 and H.265 video coding comparison: upgrade in 8K era

Xmint

Member
This week, Fraunhofer HHI officially announced the next-generation video codec standard H.266/VVC (Versatile Video Coding), which is supported by industry partners Apple, Ericsson, Intel, Huawei, Microsoft, Qualcomm, and Sony. It has been carried out for more than 3 years, mainly for 4K and 8K services.

H.266 Video Coding technology interpretation, clearer and lighter

The so-called encoding is to compile the captured video source file into another format to reduce the "weight" of the video file, so that the playback of web video resources is reduced data throughput, more efficient and smooth playback of video, video streaming The most important codec standards in transmission are ITU's H.261, H.263, H.264, and now the H.265 encoding format. In short, the excellent encoding format optimizes the processing steps of the video. Let's take a look at a set of comparison charts compiled by H.264 and H.265, so the performance is more intuitive.


H.266 and H.265 video coding comparison: upgrade in 8K era

We can simply understand the two encoding formats as the process of drawing by two painters. We see that the video is divided into small areas for compilation in the H.264 format. The rendering process is more complicated, so the file size Larger, and H.265 calculates similar colors and background blurring, and needs to carefully encode the places that need to be highlighted. In this way, selective encoding can reduce the size of the video file by about 50%, which is a very efficient improvement. It also provides optimization from the source of the video to the bit rate of stored files and website playback.

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H.266 is designed to transmit higher-quality network video under limited bandwidth, and only requires half of the original bandwidth to play the same quality video. This also means that our smartphones, tablets and other mobile devices will be able to play 4K UHD videos directly online. The H.266 standard also supports 4K and 8K UHD video. It can be said that the H.265 standard allows network video to keep up with the "high resolution" of the display.

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H.266 further expands the interpretation of the picture, starting from the bottom of the video file, reconstructing the content of the video file, looking for similar color patches, and integrating them together, so as to achieve the purpose of more efficient use of limited bandwidth. The more mature the encoding technology is, the clearer video content can be further popularized. With the support of the H.266 specification, the popularity of 8K video will also accelerate.

Of course, video encoding is the aspect of achieving “volume reduction” of video files, and the development of transmission, input/output, video acquisition, storage, and post-processing of films and televisions must also be developed in parallel to truly achieve the purpose of online 4K video or even 8K video.
 

Dramaqueen

Member
There’s no software standard yet for VCC encoding and decoding, though Fraunhofer said it will deliver one this fall. The company added that “the new chips required for the use of H.266/VVC, such as those in mobile devices, are currently being designed.” In other words, it might still be awhile before you see the tech working on your TV, smartphone or computer.
 
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