Display Encode Mode

Video Code Engine (VCE, was earlier referred to as Video Coding Engine, Video Compression Engine or Video Codec Engine in official AMD documentation) is AMD's video encoding application-specific integrated circuit implementing the video codec H.264/MPEG-4 AVC. Since 2012 it was integrated into all of their GPUs and APUs except Oland.

VCE was introduced with the Radeon HD 7000 series on 22 December 2011. VCE occupies a considerable amount of the die surface at the time of its introduction and is not to be confused with AMD's Unified Video Decoder (UVD).

As of AMD Raven Ridge (released January 2018), UVD and VCE were succeeded by Video Core Next (VCN).

Overview

The handling of video data involves computation of data compression algorithms and possibly of video processing algorithms. As the template compression methods shows, lossy video compression algorithms involve the steps: motion estimation (ME), discrete cosine transform (DCT), and entropy encoding (EC).

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.

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 Version 1.0 supports H.264 YUV420 (I & P frames), H.264 SVC Temporal Encode VCE, and ''Display Encode Mode'' (DEM).

It can be found on:
* Piledriver-based
** Trinity APUs (Ax-5xxx, e.g. A10-5800K)
** Richland APUs (Ax-6xxx, e.g. A10-6800K)
* GPUs of the Southern Islands generation (GCN1: CAYMAN, ARUBA (Trinity/Richland), CAPE VERDE, PITCAIRN, TAHITI). These are
** Radeon HD 7700 series (except HD 7790 with VCE 2.0)
** Radeon HD 7800 series
** Radeon HD 7900 series
** Radeon HD 8570 to 8990 (except HD 8770 with VCE 2.0)
** Radeon R7 250E, 250X, 265 / R9 270, 270X, 280, 280X
** Radeon R7 360, 370, 455 / R9 370, 370X
** Mobile Radeon HD 77x0M to HD 7970M
** Mobile Radeon HD 8000-Series
** 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.

It can be found on:
* Steamroller-based
** Kaveri APUs (Ax-7xxx, e.g. A10-7850K)
** Godavari APUs (Ax-7xxx, e.g. A10-7890K)
* Jaguar-based
** Kabini APUs (e.g. Athlon 5350, Sempron 2650)
** Temash APUs (e.g. A6-1450, A4-1200)
* Puma-based
** Beema and Mullins
* GPUs of the Sea Islands generation as well Bonaire or Hawaii GPUs (2nd Generation Graphics Core Next), such as
** Radeon HD 7790, 8770
** Radeon R7 260, 260X / R9 290, 290X, 295X2
** Radeon R7 360 / R9 390, 390X
** Mobile Radeon R9 M280X
** Mobile Radeon R9 M385, M385X
** Mobile Radeon R9 M470, M470X
** FirePro W4300, W5100, W8100, W9100, S9100, S9150, S9170
** Mobile FirePro M6100, W6150M, W6170M

VCE 3.0

Video Code Engine 3.0 (VCE 3.0) technology features a new high-quality video scaling and - since version 3.4 - High Efficiency Video Coding (HEVC/H.265).

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).

* Tonga: Radeon R9 285, 380, 380X; Mobile Radeon R9 M390X, M395, M395X, M485X
* Tonga XT: FirePro W7100, S7100X, S7150, S7150 X2
* Fiji: Radeon R9 Fury, Fury X, Nano; Radeon Pro Duo (2016); FirePro S9300, W7170M; Instinct MI8
* Polaris: RX 460, 470, 480; RX 550, 560, 570, 580; Radeon Pro Duo (2017)

AMD's Carrizo platform features VCE 3.1, retaining the same capabilities as the VCE found in "Fiji" and "Tonga".

Stoney Ridge features a cut down version of VCE 3.4 without HEVC/H.265 encoding and is accompanied by a UVD 6.2 engine.

VCE 3.0 removes support for H.264 B-frames.

VCE 4.0

The Video Code Engine 4.0 encoder and UVD 7.0 decoder are included in the Vega-based GPUs.

VCE 4.1

AMD's Vega20 GPU, present in the Instinct Mi50, Instinct Mi60 and Radeon VII cards, include VCE 4.1 and two UVD 7.2 instances.

Feature overview

APUs

GPUs

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, but added it in December 2018), to access the VCE hardware and make use of it.

AMD's proprietary