Video Core Next
Video Core Next is AMDs brand for its dedicated video encoding and decoding hardware core. It is a family of hardware accelerator designs for encoding and decoding video, and is built into AMD's graphics processing units (GPU's) since AMD Raven Ridge, released January 2018.
Background[edit]
Video Core Next is AMD's successor ASIC to both the Unified Video Decoder and Video Coding Engine designs,[1] which are hardware accelerators for video decoding and encoding, respectively. It can be used to decode, encode and transcode ("sync") video streams, for example, a DVD or Blu-ray Disc to a format appropriate to, for example, a smartphone. Unlike video encoding on a CPU or a general-purpose GPU, Video Core Next is a dedicated hardware core on the processor die. This application-specific integrated circuit design allows for much more power-efficient video processing.[2][3]
Support[edit]
Video Core Next supports: MPEG2 Decode, MPEG4 Decode, VC-1 Decode, H.264/MPEG-4 AVC Encode/Decode, HEVC Encode/Decode, and VP9 Decode.[4]
VCN 2.0 is implemented with Navi products and the Renoir APU. The feature set remains the same as VCN 1.0. VCN 3.0 is implemented with Navi 2 products.[5]
| Implementation | H.262 (MPEG-2) | MPEG-4 | VC-1/ WMV 9 | H.264 (MPEG-4 AVC) | H.265 (HEVC) | VP9 | AV1 | JPEG | 4:4:4 (Chroma Subsampling) | |
|---|---|---|---|---|---|---|---|---|---|---|
| Decoding | Decoding | Decoding | Decoding / Encoding | Decoding / Encoding | Decoding | Decoding | Decoding | |||
| VCN 1.0 | Raven | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | |
| VCN 2.0 | RDNA1 | |||||||||
| VCN 2.2 | Renoir | Yes | Yes | |||||||
| VCN 2.5 | Arcturus | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | |
| VCN 3.0 | RDNA2[6] | Yes | Yes | Yes | Yes | Yes (?K decoding) | Yes (?K decoding) | Yes | Yes | |
See also[edit]
Hardware video hardware technologies[edit]
Nvidia[edit]
- GeForce 256's Motion Compensation
- High-Definition Video Processor
- Video Processing Engine
- Nvidia NVENC
- Nvidia NVDEC
AMD[edit]
Intel[edit]
Qualcomm
References[edit]
- ^ Larabel, Michael (17 November 2017). "Radeon VCN Encode Support Lands In Mesa 17.4 Git". Phoronix. Retrieved 20 November 2017.
- ^ "Intel's Second-Gen Core CPUs: The Sandy Bridge Review - Sandy Bridge's Secret Weapon: Quick Sync". Tom's Hardware. Retrieved 2011-08-30.
- ^ "The Sandy Bridge Review: Intel Core i7-2600K, i5-2500K and Core i3-2100 Tested". AnandTech. Retrieved 2014-04-05.
- ^ a b "X.Org: Radeon Feature Matrix – Video Core Next".
- ^ "AMD Lands VCN 3.0 Video Encode Support For Navi 2 / Sienna Cichlid - Phoronix". www.phoronix.com. Retrieved 2020-06-18.
- ^ "AMD Radeon Navi 2 / VCN 3.0 Supports AV1 Video Decoding - Phoronix". www.phoronix.com. Retrieved 2020-11-20.