嵌入式开发之hisilicon---hi3536 处理器简介
（1）处理器概述
（2）处理器模块架构
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（1）
Processor Core
z ARM Cortex A17 quad-core@maximum 1.4 GHz
− 32 KB L1 I-cache, 32 KB L1 D-cache
− 1 MB L2 cache
− Main control processor for running peripheral drivers and applications
z ARM Cortex A7 single-core@maximum 900 MHz
− 32 KB L1 I-cache, 32 KB L1 D-cache
− 128 KB L2 cache
− Video-related module control
Video Decoding Standards
z H.265 Main Profile L5.1
z H.264 Baseline/Main/High profile L5.0
z MPEG4 SP L0–3/ASP L0–5
z MJPEG/JPEG baseline
Video Encoding Standards
z H.264 Baseline/Main/High profile L5.1
z MJPEG/JPEG baseline
Video Encoding/Decoding
z H.265/H.264&JPEG encoding and decoding of multiple streams:
− 4-channel 4K x 2K (3840 x 2160)@30 fps H.265/H.264 decoding+2x1080p@30 fps H.264 encoding+4-channel 4K x 2K@2 fps JPEG encoding
− 16x1080p@30 fps H.265/H.264 decoding+2x1080p@30 fps H.264 encoding+16x1080p@2 fps JPEG encoding
− 9x1080p@30 fps H.265/H.264 decoding+4K x 2K@30 fps H.264 encoding+9x1080p@2 fps JPEG encoding
− 32x720p@30 fps H.265/H.264 decoding+4x720p@30fps H.264 encoding+32x720p@2 fps JPEG encoding
− 64xD1@30 fps H.265/H.264 decoding+8xD1@30 fps H.264 encoding+64xD1@2 fps JPEG encoding
− 9x720p@30 fps JPEG decoding
GPU
z Integrated Mali-T720 GPU
z OpenGL ES3.1/2.0/1.1
z H.265 Main Profile L5.1
z H.264 Baseline/Main/High profile L5.0
z MPEG4 SP L0–3/ASP L0–5
z MJPEG/JPEG baseline
Video Encoding Standards
z H.264 Baseline/Main/High profile L5.1
z MJPEG/JPEG baseline
Video Encoding/Decoding
z H.265/H.264&JPEG encoding and decoding of multiple streams:
− 4-channel 4K x 2K (3840 x 2160)@30 fps H.265/H.264 decoding+2x1080p@30 fps H.264 encoding+4-channel 4K x 2K@2 fps JPEG encoding
− 16x1080p@30 fps H.265/H.264 decoding+2x1080p@30 fps H.264 encoding+16x1080p@2 fps JPEG encoding
− 9x1080p@30 fps H.265/H.264 decoding+4K x 2K@30 fps H.264 encoding+9x1080p@2 fps JPEG encoding
− 32x720p@30 fps H.265/H.264 decoding+4x720p@30fps H.264 encoding+32x720p@2 fps JPEG encoding
− 64xD1@30 fps H.265/H.264 decoding+8xD1@30 fps H.264 encoding+64xD1@2 fps JPEG encoding
− 9x720p@30 fps JPEG decoding
GPU
z Integrated Mali-T720 GPU
z OpenGL ES3.1/2.0/1.1
z OpenCL 1.2/1.1/1.0
z Up to 63 MTris/s triangle filling rate
z Double-precision FP64 and anti-aliasing
z Up to 63 MTris/s triangle filling rate
z Double-precision FP64 and anti-aliasing
（2）
相对于TI的8168来说，Hi3536多了H265的解码，还多了4K*2K的解码，这些多事TI8168不支持的。不知道后续TI会不会出现更牛逼的解码器，所以暂时放弃了TI8168的开发，转而做了Hi3536的开发。相对于稳定性来说，TI8168立足于安防行业好多年，见TI8168的实力多么。可惜的是后面TI没有继续推出H265的解决方案，这相对来说有点可惜。Hi3536的ARM cortex A7相对来说比TI8168的Cortex A9弱点，但是存在A17，比A9强。处理各种多媒体业务足矣！目前所担心的是HI3536是海思刚出的，稳定性尚待考验！
开发目的：利用海思的解码器解网络视频里，多屏显示等等功能。附上海思PDF下载地址。
http://www.hisilicon.com/products/digital.html
http://blog.csdn.net/liqinghan/article/details/48195997
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