Parameter introduction of Haisi 3531 processor

First, Media Processing Platform (MPP) Hi3531 / 3532 Coding Second, the video cache pool: Provide large block memory management functions to the media service. Third, video coding module VENC supports the following protocol encodings: (1) H.264 (2) JPEG (3) MJPEG (4) MPEG-4 Fourth, the input source of the encoding module includes three categories: (1) User state read image file Send data to the encoding module (2) The image captured by the video input (VIU) module is sent to the encoding module via a video processing subsystem (VPSS) (3) Video input (VIU) module collected image directly to the encoding module 5. Video pre-processing unit VPSS (VideoProcessSub-System) (1) Supports unified processing of an input image, and then scales and output. (2) One into five out (0 ~ 4) (3) A postpiece of 4 different resolutions of 4 different resolutions. 0: Main code stream 1: auxiliary code stream 2: JPEG3: Preview Sixth, typical encoding processes include: (1) Enter the reception of the image (2) Blocking and coverage of the image content (3) code encoding (4) Input of the code stream Seven, encoding channel: Complete the function of the image transformation into a code stream, the specifically is completed by the code rate controller and the encoder. (1) Code Rate Controller: Provides control and adjustment of encoding parameters to control the output rate rate. (2) Encoder: Only the encoding function is completed. Eight, encoding channel group: The chip is initiated once, and the collection of coding channels can be processed at the same time. The Hi3531 / Hi3532 coding channel group supports starting once, only the main code flow path is encoded. Nine, system binding: Bind the data source to establish a relationship between the two. After the binding, the data generated by the data source will automatically send it to the recipient. Ten, some nouns Shop: VI: Video Enter VO: Video Output VPSS: Video Processing VDA: Video Detection Analysis VENC: Video Code AI: Audio Input VDEC: Video Decoding AO: Audio Output XI, Hi3531 decoder provides two code streams: (1) Flow send (2) Send by frame Twelve, Hi3531 decoder image transmission mode: (1) Normal transmission: completely according to the H.264 protocol output image speed slow (2) Direct output: Receive the next frame stream, output the current frame image. Second (3) Press frame output: Receive the current frame code stream, output the current frame image. high speed Thirteen, VI module (video input) (1) Implementation: A video data outside the chip is received, and the interface is received, and stored in the specified memory area. Realize all the way original video image input, two video image output functions. (2) The Hi3531 chip has 4 BT.1120 interfaces, each of which corresponds to two VI devices in turn. (3) The Hi3531 chip has 8 (4 * 2) VI device ports (DEV0 ~ DEV7), 32 VI physical channels, and 2 levels of extended channels. (4) Eight VI device ports support 2 D1 composite modes, and 1 channel 720pinterleave mode. Fourteen, audio module The AUDIO module includes: (1) Audio input (2) Audio output (3) Audio coding (4) Audio decoding, reading