
DDMALL HEM-4K 4K Encoding Module & Starter Kit, OEM-Ready SRT HTTP HLS RTMP RTMPS Modules
DDMALL HEM-4K is an OEM-ready H.265 H.264 A/V encoding module for deep diving in video transmission and live streaming solutions, supporting input video resolution up to 4KP30, encoding resolution output up to 4KP30/2KP60 64M. It helps people simplify the overall system design, and reduce the developing time and total cost of ownership. It supports multiple protocols such as RTP/RTSP/RTMP/RTMPS/UDP/TCP/HLS/SRT etc. for live broadcast video and audio to Facebook, YouTube, Twitch etc. Just install the module into our I/O debugging board to test all the functions of an encoder.
Device Introduction
HEM-4K is a customized OEM-ready AV encoding module based on industry in-depth demand, supporting input video resolution up to 4KP30, encoding resolution output up to 4KP30/2KP60 64M. It helps people simplify the overall system design, and reduce the developing time and total cost of ownership. Integrated of standard hardware and software audio/video systems, HEM-4K supports H.265/H.264 high-efficiency encoding and main protocols such as RTP/RTSP/RTMP/RTMPS/UDP/TCP/HLS/SRT etc. At the same time, it provides all kinds of docking interfaces, supports third-party software docking and different hardware types docking, provides free upgrading services for those industries who have special rudiments on streaming media, and supports hardware and software customization. Its versatility, multi-functionality and customizability make the designers be more concentrated on the final application of the product. That is to say, the module adapts to all products for audio and video long-distance transmission or live streaming.

Device Features
1, Integration of standard software and hardware audio/video system.
2, Compact design—save space and ultra-low power consumption.
3, Universal design-reduce product developing time and total cost.
4, Better video quality—support input up to 4KP30HZ and encoding output up to 4KP30 64M.
5, High-efficiency encoding—support H.264/H.265
6, Support almost main protocols such as RTP/RTSP/RTMP/RTMPS/UDP/TCP/HLS/SRT etc. and provide free upgrading service for special requirements of different industries on streaming media.
7, UPnP+DDNS—Leveraging this function, users can realize intranet traversal, remotely control the encoder through encoder’s domain name, and build video transmission on Public Internet.
8, provide all kinds of docking interfaces—support third-party software docking and different hardware type docking.
9, support hardware customization—different hardware form factors can be designed based on same standard.
10, Support software customization.


Starter Kit
To help customer quickly debug and use the functions of encoding module, and save total cost of ownership, DDMALL also developed corresponding debugging I/O board, which provides I/O interfaces for module audio and video link, network connection etc. Users can run all of functions of encoding module by embedding the module into the I/O interface on the debugging board. One I/O board can load 4 encoding modules simultaneously. Moreover, encoding module + I/O board can be put into use directly as a multi-channel audio and video encoding device.

1, Integration of standard software and hardware audio/video system.
2, Compact design—save space and ultra-low power consumption.
3, Universal design-reduce product developing time and total cost.
4, Better video quality—support input up to 4KP30HZ and encoding output up to 4KP30 64M.
5, High-efficiency encoding—support H.264/H.265
6, Support almost main protocols such as RTP/RTSP/RTMP/RTMPS/UDP/TCP/HLS/SRT etc. and provide free upgrading service for special requirements of different industries on streaming media.
7, UPNP+DDNS function—realize traversal of intranet, remotely control encoding device through domain name and build a link for video transmission on wide area network.
8, provide all kinds of docking interfaces—support third-party software docking and different hardware type docking.
9, support hardware customization—different hardware form factors can be designed based on same standard.
10, Support software customization.
Hardware
Description | Parameters |
Sku | HEM-4K |
Expansion Interface | BH501P-030-R00200*2 |
Interfaces |
HDMI In Analog Audio In KEY_IN Network USB 2.0 UART |
Memory |
ROM: DDR3 1GB Flash: 512MB |
Size | 60x30mm |
Power supply | DC5V/1A |
Power consumption | 5W Max |
Software
Description | Parameters |
Operating System | Linux |
Video input format | 720P50/60,1080P23/24/25/30/59/60 2160P24/25/30 |
Video codec |
H.264/H.265 3840*2160@30 + 1920*1080@60 VBR/CBR/FIX PQ/AVBR 128Kbps~64Mbps |
Audio codec |
AAC/32Kbps~256Kbps G711u |
Stream | RTP, RTSP, RTMP,RTMPS,UDP/TCP,HLS, SRT |
Transmission mode | Unicast/Multicast |
Control interface | UART/WEB UI |
Hardware Frame Chart

Software Frame Chart

Part of Connection Circuit Diagram
1、Connector signal definition


2、Network transformer connection
