If you recently use a smartphone to shoot the "Cat Chasing Flash" and upload it to the web, you are likely to save the video in H.264 / MPEG-4 AVC video format - currently using the most wide video Encoding format.
H.264 The largest competitor is VP8, VP8 is a completely free code format developed by Google, initially applied to video conferencing (such as Google Hangouts and WebRTC applications).
As for H.264 or VP8, it is possible to continue to be used for many years. From essentially, most mobile terminals and embedded devices have fully supported H.264 hard solution, in addition to this, most broadcast equipment Also transplant from MPEG-2 or upgrade to H.264, which is also an important aspect of promoting its development.
H.265 and VP9 dispute
Of course, there is also a very reasonable reason for what new video coding will be quickly adopted by mobile devices, smart TVs or smart vehicles. For example, the emergence of video sharing and high quality 4K video content is a factor that drives these new standards.
For users who have a high-resolution video stream demand, there have been multiple available options that can meet their requirements - some new options can really have very obvious effects. In this article we will introduce you to two new coding formats: H.265 and VP9.
Next generation video coding format H.265 and VP9 largest Sharabayko parameters comparison
At present, H.265 has been widely adopted, and the ITU-T video encoding expert team has specified that each pixel point 10 is the smallest color depth of the UHD video broadcast. ITU-R UHDTV suggestion BT.2020 passed in October 2015, representing the important step of V change T. At the beginning of this year, the ITU-T team released BT.2100 and became a new standard of high dynamic range TV. The following content is quoted at the time:
The latest TU-R HDR-TV specification IBT.2100 pushes further development, bringing a better visual experience, and more realistic. The HDR-TV specification allows TV applications to make full use of more advanced display technology. HDR-TV can make the scene under outdoor light more bright and natural, while increasing highlights and flash effects. It also improves the dusty indoor scenes and night views, showing more details of more faint sights, which allows TV video manufacturers to display more textures and colors, which is the current TV video standard.
If you want to know more, my classmate Simon Forrest wrote a more comprehensive article, introduced the benefits of the 10-bit color depth of H.265 encoding and decoding mode.
At the same time, VP9 is launched by Google and is the default video stream coding format of the YouTube website. It has been successful as a 4K video encoding format.
We have already launched a close cooperation with Google and Partners to design VP9's GPU software decoder. Imagination has already shown the PowerVR Rogue GPU to provide low power VP9 decoding effects at FHD resolution. It is YOUBE media playback. .
Many VP9 adopters have requested more bit numbers for each pixel point to ensure higher image display quality, and have higher coding efficiency in higher resolution. Therefore, Google has launched an HBD specification, which is a supplemental specification for VP9, which makes 4K video to watch on TV.
Multi-standard PowerVR video IP core available
However, in order to achieve the best performance and power consumption, the PowerVR VPU (Video Processing Unit) is required to provide hardware acceleration functions in either video encoding format.
Imagination is the world's largest video application IP nuclear vendor, and is already the most abundant use of H.265, H.264, VP8 and other video coding formats. We designed a PowerVR video processor that supports multiple standards and recently launched a PowerVR Series5 encoder series, mainly for high resolution, high frame rate and bit rate 4K video applications.
If you want to know more about PowerVR video IP, please visit our URL and continue to pay attention to our blog.
English link:
Https://imgtec.com/blog/h-265-and-vp9-delivergeng-better-pixels-at-4k-res ...
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