HEVA/HIVE/H.264 Encoder Video Hardware Accelerator - IP
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.
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