VCE was introduced with the Radeon HD 7000 series on 22 December 2011.[4][5][6] VCE occupies a considerable amount of the die surface at the time of its introduction[7] and is not to be confused with AMD's Unified Video Decoder (UVD).
In "full-fixed mode" the entire computation is done by the fixed-function VCE unit. Full-fixed mode can be accessed through the OpenMAX IL API.The entropy encoding block of the VCE ASIC is also separately accessible, enabling "hybrid mode". In "hybrid mode" most of the computation is done by the 3D engine of the GPU. Using AMD's Accelerated Parallel Programming SDK and OpenCL developers can create hybrid encoders that pair custom motion estimation, inverse discrete cosine transform and motion compensation with the hardware entropy encoding to achieve faster than real-time encoding.
AMD Video Code Engine (VCE) is a full hardware implementation of the video codec H.264/MPEG-4 AVC. It is capable of delivering 1080p at 60 frames/sec. Because its entropy encoding block is also a separately accessible Video Codec Engine, it can be operated in two modes: full-fixed mode and hybrid mode.[8][9]
By employing AMD APP SDK, available for Linux and Microsoft Windows, developers can create hybrid encoders that pair custom motion estimation, inverse discrete cosine transform and motion compensation with the hardware entropy encoding to achieve faster than real-time encoding. In hybrid mode, only the entropy encoding block of the VCE unit is used, while the remaining computation is offloaded to the 3D engine of the GPU, so the computing scales with the number of available compute units (CUs).
VCE 1.0
VCE[1] Version 1.0 supports H.264 YUV420 (I & P frames), H.264 SVC Temporal Encode VCE, and Display Encode Mode (DEM).
Mobile Radeon Rx M2xx Series (except R9 M280X with VCE 2.0 and R9 M295X with VCE 3.0)
Mobile Radeon R5 M330 to R9 M390
FirePro cards with 1st Generation GCN (GCN1) (Except W2100, which is Oland XT)
VCE 2.0
Compared to the first version, VCE 2.0 adds H.264 YUV444 (I-Frames), B-frames for H.264 YUV420, and improvements to the DEM (Display Encode Mode), which results in a better encoding quality.
Video Code Engine 3.0 (VCE3.0) technology features a new high-quality video scaling and - since version 3.4 - High Efficiency Video Coding (HEVC/H.265).[10][11]
It, together with UVD 6.0, can be found on 3rd generation of Graphics Core Next (GCN3) with "Tonga" and "Fiji" (VCE 3.0) based graphics controller hardware, which is now used AMD Radeon Rx 300 series (Pirate Islands GPU family) and VCE 3.4 by actual AMD Radeon Rx 400 series and AMD Radeon 500 series (both Polaris GPU family).
12To play protected video content, it also requires card, operating system, driver, and application support. A compatible HDCP display is also needed for this. HDCP is mandatory for the output of certain audio formats, placing additional constraints on the multimedia setup.
↑To feed more than two displays, the additional panels must have native DisplayPort support.[28] Alternatively active DisplayPort-to-DVI/HDMI/VGA adapters can be employed.
12DRM (Direct Rendering Manager) is a component of the Linux kernel. Support in this table refers to the most current version.
1.2+ (on Linux: 1.1+ (no Image support on Clover, with Rusticl) with Mesa, 1.2+ on GCN 1.Gen)
2.0+ (Adrenalin driver on Win 7+) (on Linux ROCm, Mesa 1.2+ (no support in Clover, only Rusticl, Mesa, 2.0+ and 3.0 with AMD drivers or AMD ROCm), 5th gen: 2.2 win 10+ and Linux RocM 5.0+
2.2+ and 3.0 Windows 8.1+ and Linux ROCm 5.0+ (Mesa Rusticl 1.2+ and 3.0 (2.1+ and 2.2+))[42][43][44]
↑R500 has two instruction sets. Vertex shader cores: "PVS instruction set". Pixel shader cores: "US instruction set".
↑The Radeon R100 Series has programmable pixel shaders, but do not fully comply with DirectX 8 or Pixel Shader 1.0. See article on R100's pixel shaders.
↑R300, R400 and R500 based cards do not fully comply with OpenGL 2+ as the hardware does not support all types of non-power of two (NPOT) textures.
12OpenGL 4+ compliance requires supporting FP64 shaders and these are emulated on some TeraScale chips using 32-bit hardware.
↑Vulkan support is theoretically possible but has not been implemented in a stable driver.
↑Vulkan support in Linux relies on the AMDgpu kernel driver, the radeon driver does not support Vulkan.
123The UVD and VCE were replaced by the Video Core Next (VCN) ASIC in the Raven Ridge APU implementation of Vega.
↑Video processing for video frame rate interpolation technique. In Windows it works as a DirectShow filter in your player. In Linux, there is no support on the part of drivers and / or community.
12To play protected video content, it also requires card, operating system, driver, and application support. A compatible HDCP display is also needed for this. HDCP is mandatory for the output of certain audio formats, placing additional constraints on the multimedia setup.
↑More displays may be supported with native DisplayPort connections, or splitting the maximum resolution between multiple monitors with active converters.
12DRM (Direct Rendering Manager) is a component of the Linux kernel. AMDgpu is the Linux kernel module. Support in this table refers to the most current version.
Operating system support
The VCE SIP core needs to be supported by the device driver. The device driver provides one or multiple interfaces, e. g. OpenMAX IL. One of these interfaces is then used by end-user software, like GStreamer or HandBrake (HandBrake rejected VCE support in December 2016,[49] but added it in December 2018[50]), to access the VCE hardware and make use of it.
AMD's proprietary device driver AMD Catalyst is available for multiple operating systems and support for VCE was added to it. Additionally, a free device driver is available. This driver also supports the VCE hardware.
Open Broadcaster Software (OBS Studio) supports VCE for recording and streaming. The original Open Broadcaster Software (OBS) requires a fork build in order to enable VCE.[57]
AMD Radeon Software supports VCE with built in game capture ("Radeon ReLive") and use AMD AMF/VCE on APU or Radeon Graphics card to reduce FPS drop when capturing game or video content.[58]
HandBrake added Video Coding Engine support in version 1.2.0 in December 2018.[50]
The VCE was succeeded by AMD Video Core Next in the Raven Ridge series of APUs released in October 2017. The VCN combines both encode (VCE) and decode (UVD).[59]
↑"AMD Radeon HD 6900 (AMD Cayman) series graphics cards". HWlab. hw-lab.com. December 19, 2010. Archived from the original on August 23, 2022. Retrieved August 23, 2022. New VLIW4 architecture of stream processors allowed to save area of each SIMD by 10%, while performing the same compared to previous VLIW5 architecture
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