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    Encoder Video Hardware Accelerator IP

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    The Hardware Encoder Video Accelerator (HEVA), supports HEVC encoding low complexity with a flexible architecture targeting at least 1080p60 with minimal processing units and memory cuts, and up to 2160p120 with large number of units and large memory cuts.

    Trade-off performance/area at design configuration

    Reference cache size for 2160p30 at 350 MHz, 1 reference frame and bandwidth overhead of 100% for references i.e. 1.5 GBytes/sec (minimal is 1.2 GB/s)

    Hardware interfaces

    Host interface AXI3/AXI4 slave interface for the registers and command/status FIFO Memory interface AXI3/AXI4 Streaming interfaces to External DRAM Asynchronous AXI3/AXI4 128 bits interface Synchronous DMA arbiter and memory interface

    Task sequencing modules

    Manages communication and storage between processing modules Control the shared memories and caches between the TPU modules and TSU/MIF Defines the execution mode of the task processing units

    Task processing modules

    Perform the pixel and bit-stream processing under control of TCR/TSU The number of processing elements is defined at design configuration to sustain the required performance. A local reference cache is needed for performance for some processing units. 1476519495hevah-264


  • Encoder acceleration

    • Performance up to 330 Mpixel/sec (2160p30 +1080p30)
    • HEVC Main support, Level 4.2 (2160p30)
    • H.264 High Profile Progressive, Level 5.1 (2160p30, 1080p120)
    • HEVC Sample Adaptive Offset in-loop deblocking
    • Full coding unit support (from CU 64x64 to CU 8x8, PU 4x4)
    • No restriction on MV range allowed (X<8192, Y<4096)
    • Slice support: single slice or number of CTB lines per slice
    • Slice level IT programmable

    Original input frame

    • Bottom/Right original padding on-the-fly
    • YUV 420 semi-planar: NV21

    Reference frame usage

    • Internal 2D frame format
    • Optional proprietary lossless compression on reconstructed/reference frames
    • Up to two reference frames
    • Generalized P/B frames for low delay encoding
    • GOP up to 8 frames hierarchical B-frames for random access encoding
    • Motion vector range not limited, trade-off bandwidth versus MV range up to the application programming and design configuration.
    • Programmable quality/performance trade-off

    Optional user defined input parameters

    • Deblocking slice parameters
    • User defined quantization scaling matrix tables
    • Chroma QP offsets
    • Region of interest input map table
    • Motion vector of Interest input map table

    Optional user report output

    • Motion vector field
    • with/without Basic picture analysis
    • Latency tolerance at design configuration


    • HEVC & H264 Recorder & Transcoder, for NAS application for Set Top Box application Best in Class HEVC Transcoder .
    • HEVC & H264 Video monitoring on video surveillance sequences –
    • On outdoor, non-static sequences ~5 to ~10% of bit-rate reduction
    • On outdoor, static sequences ~10 to 20% of bit-rate reduction
    • On indoor & lowlight sequences ~10% of bit-rate reduction


    • RTL Source Code
    • HDL based test bench and behavioral models
    • Test cases
    • Protocol checkers, bus watchers and performance monitors
    • Configurable synthesis shell
    • Documentation & Design Guide
    • Verification Guide
    • Synthesis Guide

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