S4K Video Encoder and Decoder Module

-- Low latency H.265/H.264 video encoder and decoder, full HD resolution, maximum 3840*2160P@30
-- Audio codec with audio input and output
-- Working as video encoder: HDMI input, Ethernet RTSP/TS stream output, TCP/UDP protocol
-- Working as video decoder: Ethernet RTSP/TS stream input (TCP/UDP protocol), HDMI output
-- Web UI or control uart for management
-- S4K encoder paired with S4K decoder in low latency mode, the 1080P60 H.265 video latency is about 100ms  

When S4K module works as video encoder, it implements H.265/H.264 video encoding and audio codec, the stream will output via Ethernet after encoding. One channel uart data can also be packed with the stream and output to the Ethernet. The video encoding bitrates is controlled via control uart or web UI. S4K supports maximum 3840*2160P@30 video encoding, and is downward compatibility for 3840P25/ 1080P60 / 1080P50 / … video encoding.

When S4K module works as video decoder, it implements H.265/H.264 video decoding and audio codec, the video stream input via Ethernet is decoded and sent to display via HDMI interface. The S4K decoder board features a range of comprehensive signal outputs including HD video at 4K/1080P/720P, uart data, and analog audio is also supported. S4K board also supports decoding maximum 4 channel 1080P videos at the same time and display via split screen mode(optional firmware). S4K board includes DVR record functionality with USB disk. Additionally, the S4K board supports a built-in RTSP sever that enables video streaming over Ethernet for remote software or hardware decoders.

The S4K module is in compact size and suitable for embedded application and real time live video monitor via wireless link or Ethernet.

Specification:

IO

HD Video input	HDMI, HDMI type "A" Connector
HD Video output	HDMI, HDMI type "A" Connector
Analog audio input/output	3PIN PH1.25mm Connector
Data uart	3PIN PH1.25mm connector, TTL 3.3V, baud rate adjustable.
Control uart	4PIN PH1.25mm connector, TTL 3.3V, baud rate adjustable.
Power in	2PIN PH2.0mm Connector
USB Host	4PIN PH1.25mm connector, for software upgrading and USB disk recording When works as video decoder.
Ethernet1	4PIN PH1.25mm Connector
Ethernet2	4PIN PH1.25mm Connector
FPC_main	For connecting with Sihid radio module

Video and Audio

Video input	HDMI
Video formats	3840P30, 3840P25, 3840P24, 1080P60, 1080P50, 1080I60, 1080I50, 1080P30, 1080P25, 720P60, 720P50, 720P30, ……
Video encoding/decoding	H.265/H.264, setup via control uart or Web UI; Bitrates adjustable; Supports proprietary H.265/H.264 video compression only used p-frames for lowest latency(the S4K encoding plus S4K decoding latency is about 100ms for 1080P60 video).
Audio input/output	Embedded HDMI or analog audio
Audio Coding	AAC, 16bit, mono, 48Kbps
Encryption	AES256
Ethernet stream protocol	UDP TS stream, RTSP stream, UDP TS stream + RTSP stream

Monitoring and control
Setup via Web UI or control uart.

Temperature range
Full specification: 0° to +70°C Ambient(Optional: -40° to +85°C)
Storage: –40° to +85°C

Power requirements
Input range: 7~30VDC
Power consumption: <250mA@12V

Physical Characteristics
Dimensions: 80x50mm(not including connectors out of the board)
Weight:27g

S4K video encoder and decoder module overview.pdf