Youyeetoo Linkpi HD Video Encoder Product Introduction

    LinkPi high-definition video encoder, this series of products are embedded solutions using Huawei HiSilicon chips, which have the advantages of low power consumption and high reliability, and support 7x24 hours of uninterrupted work. It can be widely used in network live broadcast, IPTV system, wireless image transmission, teaching recording and broadcasting, video conference, monitoring and other fields. In addition to the basic encoding and streaming functions of traditional encoders, the system also supports special effects editing, directing, network decoding, file recording, video carousel and other functions. And, relying on the increasingly powerful LinkSDK system, the function of the product continues to grow.

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Software Specifications

Category Function Description
Audio Encoding Sampling Rate 16k, 32k, 44.1k, 48k
Bit rate range Any setting, recommended 64k~256kbps
Encoding AAC, PCMA, MP3, MP2
Gain adjustment -24db ~ +24db
The default is 0: no gain adjustment
Video encoding Bit rate range Reference model comparison table
Rate Control CBR, VBR, AVBR, FIXQP
Encoding format H.264, H.265
Encoding Protocol H.265 Main Profile, Level 5.0
H.264 Baseline/Main/High Profile, Level 5.1
Smart Coding SmartP, DualP, ROI
Video processing Rotation Support 90, 180, 270 degree rotation
Crop Support top, bottom, left and right cropping
Deinterlacing Supports normal deinterlacing, full frame rate deinterlacing
Network Protocol General Protocol HTTP, HLS, RTSP, RTMP Push Streaming, RTMP Pull Streaming, UDP, Multicast
SRT Support
NDI Support
Other Functions Video Mixing Support 9-grid, 4-screen, 1+2, picture-in-picture, custom and other layouts to switch freely
Superimposition Logo, Watermark, Subtitle, Rolling Subtitle, Mosaic, Timestamp
Multi-platform live broadcast Support any multiple platforms to synchronize live streaming
File Carousel Stream the files in the FAT32 format U disk as a live stream
File Recording Support to record each channel to FAT32 format U disk
Network input Support rtsp, rtmp and other formats of network stream input decoding, re-encoding, directing, etc.
Group management All encoders in the LAN can be configured synchronously, and the program list can be summarized

Product model comparison table

HDMI input connector 1 2 5 1 1
HDMI Input Capability 1080P60 4K30 4K30 4K30 1080P60
HDMI output interface 1 1 1 1 no
SDI input connector no no no 1 no
SDI output interface no no no 1 (loop out) no
Line-In 1 no (extendable) no (extendable) 1 1
Line-Out 1 no (extendable) no (extendable) 1 no
Main Chip HI3520DV400 HI3531DV100 HI3531DV100 HI3521DV100
Encoding Capability 1080P30x2 + 360P30x2 4K30x3 or 1080P30x12 4K30x3 or 1080P30x12 4K30 or 1080P30x6 1080P30 + 360P30
Maximum Bit Rate 40Mbps 40Mbps 40Mbps 40Mbps 20Mbps
Frame Type I/P I/P I/P I/P I/P
Decoding Capability 1080P30x2 1080P30x8 1080P30x8 1080P30x4 no
deinterlacing support support support support no
USB 2.0 3.0 3.0 2.0 2.0
Power Supply DC12V 1A DC12V 3A DC12V 5A DC12V 3A DC5V 1A
Ambient temperature 0~45°C 0~45°C 0~45°C 0~45°C 0~45°C
Housing Size 100×67×32 V2: 132×140×30 130×140×30 225×120×30 170×110×30 58×62×16