low latency HDMI over Ethernet IP video stream converter

low-latency HDMI over Ethernet IP video stream converter

Application Scenarios

This HDMI to IP video stream converter is suitable for a wide range of industries and environments that require efficient, stable, and high-quality video transmission. Typical applications include:

• Broadcasting & Live Events
  Used for live streaming concerts, conferences, sports events, and church services, delivering high-definition HDMI video over wired or wireless networks.

• Security & Surveillance
  Integrates with IP cameras and monitoring platforms to transmit HDMI video from DVRs, NVRs, or other security systems for remote surveillance and centralized control.

• Industrial & UAV Video Transmission
  Enables real-time HDMI video streaming from unmanned aerial vehicles (UAVs), robots, or industrial machines for remote inspection, monitoring, and control.

• Medical Imaging & Telemedicine
  Supports the transmission of high-definition medical imaging (such as ultrasound or endoscopy) to remote specialists for diagnosis, training, and consultation.

• Education & Training
  Facilitates video transmission for e-learning, distance education, and training sessions, allowing teachers or trainers to share HDMI content seamlessly with remote participants.

• Government, Military & Emergency Response
  Provides reliable video transmission in mission-critical environments such as command centers, field operations, disaster response, and law enforcement.

• Corporate & Business Presentations
  Simplifies video distribution for boardrooms, large displays, and remote meetings by streaming HDMI content directly over wired or wireless networks.

Features

1. Advanced Video Encoding
   Supports H.265 and H.264 compression standards, delivering high-definition video quality at ultra-low bitrates.

2. Flexible Video Input Resolutions
   Compatible with multiple resolutions, including 1920×1080 @ 60/50/30/25 fps and 1280×720 @ 60/30/25 fps, ensuring wide adaptability for different video sources.

3. Automatic HDMI Source Detection
   Automatically recognizes and switches between HDMI video sources for seamless operation.

4. Two-Way Audio Intercom
   Built-in support for bi-directional voice communication, enabling interactive monitoring and remote coordination.

5. Multiple Protocols Supported
   Fully compatible with RTSP, ONVIF, GB28181, MQTT, WebRTC, and other streaming and IoT protocols for easy integration.

6. Remote Monitoring & SDK Support
   Provides real-time remote viewing via mobile phones and PCs, with an open SDK for secondary development and customization.

7. Flexible Power Options
   Supports DC 6–12V input and Power-over-Ethernet (PoE) for simplified deployment.

8. Wired & Wireless Networking
   Comes with Ethernet connectivity by default, expandable to Wi-Fi, 4G, or 5G networks depending on application needs.

9. Local Storage Capability
   Supports TF card recording up to 512GB for local video storage and backup.

Specifications

• Main Processor
  SSC338Q with 0.5T computing power

• Video Conversion Chip
  Dedicated HDMI HD video conversion chip

• Video Processing

  • Supports H.264 / H.265 encoding

  • Bitrate adjustable: 0.1 Mbps – 8 Mbps

  • Frame rate adjustable: 1 – 60 fps

• Video Output

  • Main Stream: 1920×1080@60fps, 1280×720@60fps, 1280×1024@30fps

  • Sub Stream: D1, VGA, 640×360

• Audio Processing

  • G.711 / AAC encoding

  • Supports two-way audio intercom

• Image Capture

  • Supports continuous, scheduled, and event-triggered snapshots

• Business Functions

  • OSD overlay

  • Motion detection

  • Human shape detection

  • Customizable intelligent algorithms

• Interfaces

  • Reset Button: 1 × hardware reset interface

  • USB Port: 1 × USB, supports Wi-Fi / 4G / 5G modules, customizable UVC function

  • Network Port: 1 × RJ45 (10/100M adaptive), with surge and ESD protection

  • Audio Port: 1 × 4-pole headphone jack, supports headphone output and microphone input

  • Serial Ports: 2 × TTL, support Beidou / GPS positioning and transparent data transmission for IoT integration

  • TF Card Slot: 1 × TF card, up to 256GB

• Network Protocols
  TCP/IP, IPv4, RTSP, HTTP, DHCP, NTP, RTMP, MQTT, WebRTC

• Remote Monitoring

  • Supports mobile phone and PC remote monitoring

  • Open SDK for P2P / WebRTC integration with multiple platforms

• Power Supply
  DC 5.5V – 24V input or PoE power supply

• Operating Environment

  • Temperature: -20℃ ~ +80℃

• Physical Dimensions
  80 × 50 × 12 mm (customized board shapes available)

Customizable Options

• Video Encoding & Processing

  • Choice of H.264 / H.265 codec optimization

  • Adjustable bitrate, frame rate, and resolution profiles

  • Custom intelligent video analytics (motion detection, human detection, AI algorithms)

• Video Input & Output

  • Resolution and frame rate configurations (Main/Sub stream)

  • Flexible stream formats to match specific application needs

• Audio Features

  • Codec selection (G.711 / AAC)

  • Two-way intercom customization and noise reduction algorithms

• Network & Protocols

  • Support for additional streaming protocols beyond RTSP, RTMP, ONVIF, GB28181, MQTT, WebRTC

  • Private/custom protocol integration for specific platforms

• Hardware Interfaces

  • USB interface functions (Wi-Fi, 4G, 5G module integration, UVC customization)

  • Serial port expansion and IoT data integration (GPS, Beidou, sensor data)

  • Network port protection and interface type (RJ45 / industrial connectors)

• Power Supply

  • Wide voltage input range adjustment

  • PoE customization (standard or non-standard)

• Storage Options

  • TF card maximum capacity expansion (beyond 256G, up to 512G if required)

  • Recording formats and storage management functions

• Mechanical & Form Factor

  • Board size and structure customization (80×50×12mm standard, or tailored PCB/metal housing design)

  • Heat dissipation and ruggedized design for industrial or UAV applications

• Software & SDK

  • Secondary development SDK customization (API, P2P, WebRTC integration)

  • Cloud platform docking and mobile app integration

• Wireless Transmission

  • Expansion to Wi-Fi, 4G, or 5G modules depending on customer needs

  • Antenna options and frequency band customization

How to test the latency

To evaluate the transmission latency of the HDMI to IP video stream converter, the following test setup and method were used:

1. Test Setup

   • Video Source: A computer running a stopwatch application with millisecond precision.

   • Display 1 (Reference): The computer monitor directly showing the stopwatch (real-time source).

   • Display 2 (Test): A video player connected via wired Ethernet, receiving the HDMI-to-IP video stream output from the converter.

2. Testing Method

   • Play the stopwatch on the computer (source).

   • Observe both Display 1 (direct HDMI output) and Display 2 (network video stream playback) simultaneously.

   • Pause the video at any frame where both stopwatch displays are visible.

   • Record the time shown on Display 1 (source) and Display 2 (network playback).

   • Subtract the two values to obtain the end-to-end latency of the HDMI to IP video stream.

3. Result Interpretation

   • The difference in milliseconds represents the actual transmission latency.

   • Multiple measurements at different time points should be taken and averaged for higher accuracy.

   • This test method is suitable for evaluating real-time streaming performance in applications such as UAV transmission, live broadcasting, remote monitoring, and interactive video systems.

How to test the latency

The following video demonstrates a latency test for converting HDMI video to a network stream. A millisecond-level stopwatch is shown on one computer, whose HDMI output is connected to the converter board. The board encodes the video and transmits it over the network to a second computer. Using an RTSP player, the video stream—including the stopwatch—can be viewed in real time. Playback can be paused at any moment to compare the timestamps on both screens; the difference between them reflects the latency introduced by the HDMI-to-network encoder.

FPV Weak CVBS to Ethernet

CVBS to IP Ethernet

HDMI + CVBS to IP Ethernet

SDI + AHD / CVBS to IP Ethernet

USB UVC camera to IP Ethernet

USB UVC camera to CVBS PAL NTSC

HDMI to IP Ethernet

4K HDMI to IP Ethernet

Analog AV to IP Ethernet

IP Ethernet to HDMI CVBS

IP Ethernet to HDMI CVBS

IP Ethernet to HDMI

IP Ethernet to HDMI