Is there "end" in searching for video encoding?

The style of watching high-quality movies on mobile terminals such as smartphones is becoming common and video coding technology that reduces the data size while maintaining the image quality of movies is becoming increasingly important. Netflix, a streaming movie, posts a blog post on the importance of video coding under the title "Does video coding end?"

The End of Video Coding? - Netflix TechBlog - Medium
https://medium.com/netflix-techblog/the-end-of-video-coding-40cf10e711a2

Cisco researchAccording to 2016, the traffic by the movie accounts for 73% of the total IP traffic.(PDF file)SandvineAccording to the peak fixed line in North America, it seems that it occupies 60% of download traffic by only 4 VOD services such as Netflix, YouTube, Amazon Video, Hulu. Also, the content of the movie app occupying the mobile terminal accounts for 55% of all traffic, and this percentage will increase to 75% by 2023ExpectationThere is also.

With the arrival of such 'movie primeval era', encoding / decoding technology (moving picture coding) for compressing and playing back movies is becoming more important. Video coding that achieves high compression ratio enables users to play high-quality movies with resolutions exceeding 4 K on-line, as well as to play higher-quality movies even in poor mobile communication environments.


The movie coding industry is becoming more active than before in welcoming the age of movie progression. Aiming to develop royalty-free video codecs In 2015, the Alliance for Open Media (AOM) was formed, and in March 2018,AV1"Has been released. In the MPEG campaign, the Joint Video Experts Team (JVET) was established in October 2017 to standardize a new video codec exceeding the HEVC, and a new standard "Versatile Video Coding" (VVC), which becomes the industry standard, 32 research institutions cooperate, aiming to formulate by October 2020, there are remarkable movements.

Netflix, which provides movie streaming service, not only jointly develops AV1 by participating in AOM, but also cooperates with various research institutions to promote the development of new video codec and video coding technology. Because efficiently delivering movies is directly linked to the quality of service of Netflix, we are actively developing video coding technology.


Netflix engineers first participated in the MPEG conference in 2015 and released documents for future video coding. In doing so, as Netflix tells us that it is a stance that "if you can improve the compression ratio considerably, even if the encoding complexity is increased, it will not cause a problem at all", the chairman said, "How much complex Can you accept that? " A Netflix engineer who was not ready to respond answered "In the worst case up to 100 times," it seems that there was a laughter from video coding experts who would have had 100 people. The chairman seems to have told "Do not worry - they all feel happy when they can try" new things "because most people answer" up to three times. "

Whether video coding with 100 times complexity can be realized or not, whether encode and playback environments are settled as being able to be realized is a big problem, but the problem of technology is optimistic thought that time will be solved there is.

It was issued in November 2006IEEE Signal Processing Magazine"Is video coding dead? Some people may feel that due to the introduction of a high compression codec called H.264 / MPEG-4, there is no need to ask for further compression any more, But since we began researching video coding in 1976, we have to admit that at least four times the same argument that "video coding is dead" has been done, "Dr. Edward Delpe Comments are taken up. Netflix seems that Netflix is ​​thinking that the same discussion is being done even in 2018 even after more than 40 years from the start of Dr. Drp's research.