PowerVR Video Decoder
PowerVR™ Video Decoder IP cores are multi-standard, multi-stream, ultra-high-definition video decoders. The cores decode video from the bit stream level such as ES level or NAL units and provide all the bit stream parsing and algorithmic functions required by various video standards, including entropy decoding, inverse scan, inverse transform, motion compensation, deblocking and overlap filtering.
PowerVR video decoders include advanced features, such as full support for 10 bit, 4:4:4, 4:2:2 & 4:2:0 profiles (High 10 Profile, High 4:2:2 Profile, High 4:4:4 Predictive Profile, and intra and CAVLC only variants of these). Support is also included for H.264 MVC. These decoders offer the industry’s lowest power consumption, alongside high performance H.265 & H.264 decoding capability, at resolutions up to 4K at 60 fps (4K60). Ultra high frame rate decoding enables applications such as faster than real time transcoding and video editing.
Stress and syntax test streams from the ISO, IEC, Allegro and Microsoft, as well as real-world streams (both off air and supplied by customers), have helped ensure multi-standard compliance.
The efficient multi-mode hardware design enables the efficient hardware engine to perform the decode of all standards, the design offers lower risk, easier integration and better performance than discrete solutions for individual standards.
As video moves into the 4K era, many features in addition to the improved resolution are also important. The improved colour fidelity of 10-bit resolution, and 4:2:2 / 4:4:4 colour space supported by the PowerVR video decoder cores, makes them ideal for demanding applications such as UHDTV (enabling solutions to meet ITU-R Recommendation BT.2020), wireless display and automotive. The high frame rate capabilities, allow for faster than real time decoding (e.g. 1080P120), ideal for use in transcoding and video editing.
Single, Dual and Multi-stream
The cores can be configured on a time division multiplex basis to handle single, dual and multi-stream decoding. This allows functions such as picture-in-picture and multi-picture menus.
Low Power Consumption
Advanced power management techniques including block- and register-level clock gating ensure that the minimum amount of logic is powered for each video standard. This ensures that the cores have low power requirements enabling high-definition video to be brought to power-constrained devices such as portable media players and mobile phones.
PowerVR video decoders have low overhead host CPU software drivers supporting the video standards through a single easy to use interface. The drivers are in ANSI C code and are easily ported to a wide range of operating systems.
The firmware for the stream manager is provided as part of the product deliverables. Industry standards such as Gstreamer and OpenMAX IL are supported.
Ease of Integration
All our IP platforms are designed to be easily integrated into a wide range of SoCs. They are system latency tolerant, with low memory bandwidth loading and excellent power management.