Video Core Next: Difference between revisions
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Revision as of 21:34, 18 June 2020
Video Core Next is AMD's brand for its dedicated video encoding and decoding hardware core.
Background
Video Core Next is AMD's successor ASIC to both UVD and VCE.[1] 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 a much more power-efficient video processing.[2][3]
Support
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. As the feature set remains the same to VCN 1.0, it's possibly just an internal iteration related to how buffers and registers are handled in the GPU[5].
VCN 3.0 is implemented with Navi 2 products. [6]
| Implementation | H.262 (MPEG-2) | MPEG-4 | VC-1/ WMV 9 | H.264 (MPEG-4 AVC) | H.265 (HEVC) | VP9 | AV1 | JPEG | AMD Fluid Motion | 4:4:4 (Chroma Subsampling) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Decoding | Decoding | Decoding | Decoding / Encoding | Decoding / Encoding | Decoding | Decoding | Decoding | Frame interpolation | |||
| VCN 1.0 | Raven | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | No | |
| VCN 2.0 | Navi10, Navi14 | ||||||||||
| VCN 2.1 | Renoir | Yes (8K decoding) | Yes (8K decoding) | ||||||||
| VCN 3.0 | ? | Yes | Yes | Yes | Yes | Yes (?K decoding) | Yes (?K decoding) | ? | Yes | ? | |
References
- ^ 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".
- ^ "torvalds/linux". GitHub. Retrieved 2020-05-26.
- ^ "AMD Lands VCN 3.0 Video Encode Support For Navi 2 / Sienna Cichlid - Phoronix". www.phoronix.com. Retrieved 2020-06-18.