IP Ethernet Stream to 4K HDMI Video Decoder Board with H.265/H.264 and Audio Codec

IP Ethernet Stream to 4K HDMI video decoder with H.265/H.264 support, audio codec, DVR recording, and multi-channel decoding for embedded applications

Overview

The IP Ethernet Stream to 4K HDMI video decoder is a high-performance embedded solution designed for decoding H.265/H.264 video streams over IP networks, providing ultra-high-definition output up to 4K (3840×2160). This decoder board seamlessly converts Ethernet video streams into HDMI or AV outputs, delivering smooth, real-time video playback for surveillance, broadcasting, and industrial monitoring applications.

Featuring integrated audio codec capabilities, the board supports synchronized audio playback with AAC decoding and analog output. Microphone input allows bidirectional audio transmission when paired with compatible encoder modules, enabling complete audio-video solutions.

The decoder board also includes DVR functionality, allowing direct recording to Micro SD cards or USB drives. It supports automatic recording, as well as manual start/stop via onboard controls, making it ideal for continuous monitoring systems.

For ease of management, the board offers both web-based UI and UART control using AT commands. Optional support for multi-channel decoding allows simultaneous display of up to four 1080P streams in split-screen mode, making it suitable for advanced video monitoring setups.

Compact, energy-efficient, and industrial-grade, this IP Ethernet Stream to 4K HDMI video decoder is perfect for embedded applications, wireless video transmission, smart city surveillance, and real-time monitoring systems.

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Features

1. Advanced Video Decoding

• Supports H.265 (HEVC) and H.264 video decoding
• Ultra-high-definition output up to 4K (3840×2160)
• Backward compatible with 1080P and 720P resolutions
• Real-time, low-latency decoding for smooth playback

2. Multi-Channel Video Support (Optional)

• Decode up to four 1080P channels simultaneously
• Split-screen display mode for multi-view monitoring
• Switch between single-channel full-screen and multi-channel layouts

3. Flexible Video Output Interfaces

• HDMI Type-A connector for high-definition displays
• Composite video (CVBS) output for legacy monitors
• Supports NTSC (720×480@60i) and PAL (720×576@50i) formats

4. Integrated Audio Codec

• Supports AAC audio decoding
• Analog audio output for synchronized AV playback
• Microphone input for real-time audio capture
• Compatible with remote encoder modules for bidirectional audio

5. Ethernet-Based Video Streaming

• 100M Ethernet port for video stream input
• Supports multiple protocols: UDP TS decoding, RTSP client, and RTSP server forwarding (optional)
• Ideal for IP-based surveillance and embedded video systems

6. Built-in DVR Recording

• Supports recording to Micro SD (TF card) or USB drives
• Automatic recording when storage is detected
• Manual start/stop control via onboard Key2
• Priority recording from TF card when both storage devices are present

7. Remote Configuration and Control

• Web-based UI for easy configuration
• UART interface with 3.3V TTL AT command control
• Compatible with encoder modules for integrated system setup

8. Compact and Embedded-Friendly Design

• Dimensions: 85.6 × 79.6 mm
• Low-profile components: top <7mm, bottom <2.5mm
• Lightweight and efficient for embedded deployment

9. Industrial-Grade Reliability

• Standard operating temperature: 0°C to +70°C
• Optional industrial version: -40°C to +85°C
• Stable performance for harsh environments

10. Low Power Consumption

• Input voltage: 9–30V DC
• Power consumption: <250mA @ 12V

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Specifications

Hardware Interfaces

• Video Output: HDMI Type-A connector, 4-pin PH2.0mm CVBS
• Audio Output: Analog via HDMI/AV; AAC decoding
• Microphone Input: 2-pin PH2.0mm for bidirectional audio
• Storage: Micro SD (TF card), USB Host (Type-A)
• Control Interfaces:
  • Data UART: 3-pin PH1.25mm, 3.3V TTL
  • Control UART: 4-pin PH1.25mm, 3.3V TTL
• Ethernet: 4-pin PH2.0mm, 100M Ethernet port
• Keys:
  • Key1: OSD display toggle / multi-channel switch
  • Key2: Video recording control
• LED Indicators:
  • Power LED (Red)
  • Video LED (Green, blinking during decoding)
  • Record LED (Green, active during recording)

Video & Audio

• Video Output Resolutions: 4K, 1080P, 720P
• CVBS Output: NTSC (720×480@60i), PAL (720×576@50i)
• Video Decoding: H.264 / H.265
• Audio Decoding: AAC
• Encryption: AES256 decryption supported

Streaming Protocols

• UDP TS stream decoding
• RTSP client decoding
• RTSP server forwarding (optional)

Physical Characteristics

• PCB Dimensions: 85.6 × 79.6 mm
• PCB Thickness: 1.6 mm
• Maximum Component Height: Top <7mm, Bottom <2.5mm

Power Requirements

• Input Voltage: 9–30V DC
• Power Consumption: <250mA @ 12V

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Input and Output

The IP Ethernet Stream to 4K HDMI video decoder provides a comprehensive set of input and output interfaces to support versatile video, audio, and control connections for embedded systems and professional monitoring applications.

Video Outputs:

• High-definition HDMI output via Type-A connector, supporting 4K, 1080P, and 720P resolutions.
• Composite video output (CVBS) through a 4-pin PH2.0mm connector for legacy analog monitors.

Audio Interfaces:

• Embedded audio via HDMI and dedicated AV output connectors.
• AAC audio decoding ensures high-quality sound playback.
• Microphone input (2-pin PH2.0mm) allows live audio capture, which can be transmitted to compatible encoder modules for two-way audio communication.

Storage Options:

• TF (Micro SD) card slot and USB Host (Type-A) for direct recording of video streams.
• DVR functionality supports automatic recording upon device detection and manual start/stop via the onboard record key, prioritizing the TF card when both storage devices are connected.

Ethernet Input:

• 100M Ethernet port (4-pin PH2.0mm connector) supports UDP TS stream decoding, RTSP client decoding, and optional RTSP server forwarding, enabling seamless network video integration.

Control Interfaces:

• Data UART (3-pin PH1.25mm, 3.3V TTL) receives real-time data from compatible encoder modules.
• Control UART (4-pin PH1.25mm, 3.3V TTL) allows system configuration via AT commands.
• Onboard keys include:
  • Key1: OSD display toggle or multi-channel video switching (split-screen/full-screen mode).

    • The OSD key allows users to toggle the On-Screen Display (OSD) on or off. Pressing and holding the key for more than 1 second switches its status, which is retained even after a reboot.

      • Without UART data input: The OSD displays video information such as bitrates and stream status directly on the screen.
      • With UART data input: The OSD shows text data received from the UART interface.

      For units with firmware supporting up to 4-channel 1080P decoding and synchronous display, Key1 also functions as a video display switch, allowing users to toggle between split-screen multi-channel mode and full-screen single-channel mode.

  • Key2: Video recording control, with short presses to start/stop recording.
    • The Record key is used to start or stop video recording. A short press toggles the recording status. Upon power-on, the system automatically detects the storage device—either a TF (Micro SD) card or USB drive, with priority given to the TF card—and begins recording video if a device is present. Press the Record key at any time to pause or resume recording, providing convenient manual control over video capture.

 

Status Indicators (LEDs):

• Power LED (Red) – indicates board is powered.
• Video LED (Green) – blinks when a video stream is received and decoded successfully.
• Record LED (Green) – lights when recording to USB or TF card is in progress.

This combination of HDMI, CVBS, audio, Ethernet, storage, and control interfaces makes the decoder board highly flexible, allowing it to support complex video monitoring setups, embedded deployments, and multi-channel streaming applications.

Applications

The IP Ethernet Stream to 4K HDMI video decoder is ideal for:

1. Video Surveillance Systems

• Multi-channel IP camera decoding
• Real-time monitoring and recording
• Local storage for continuous surveillance

2. Wireless Video Transmission

• Real-time video streaming over wireless links
• Compatible with Sihid encoder modules for integrated solutions

3. Industrial Automation

• Factory floor video monitoring
• Process visualization
• Machine vision integration

4. Embedded Systems

• Integration into custom hardware
• OEM video decoder solutions
• Portable AV monitoring devices

5. Broadcasting & Streaming

• Network video decoding
• Digital signage and streaming applications
• Remote video display over Ethernet

6. Smart IoT Solutions

• Smart city surveillance
• Remote monitoring
• Edge computing video processing

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With Metal Box

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Customization Options

• Multi-Channel Decoding: Optional firmware for up to 4-channel 1080P decoding
• Extended Temperature Range: Industrial version: -40°C to +85°C
• RTSP Server Functionality: Video forwarding for remote monitoring
• Firmware Customization: Custom OSD, protocol support, or feature-specific firmware
• Hardware Modifications: Connector changes and interface adaptations for specific deployments

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FAQ

Q1: What video formats does this decoder support?

Supports H.264 and H.265 video streams with output resolutions up to 4K UHD.

Q2: Can it decode multiple streams at once?

Yes, optional firmware enables decoding of up to four 1080P streams simultaneously in split-screen mode.

Q3: What video outputs are available?

HDMI for high-definition displays and CVBS for legacy analog monitors.

Q4: Does it support audio?

Yes, integrated AAC decoding, analog output, and microphone input for bidirectional audio.

Q5: How are video streams received?

Video input is received via Ethernet using UDP TS or RTSP protocols.

Q6: Can it record video?

Yes, supports recording to Micro SD (TF card) or USB storage, with automatic detection and manual control.

Q7: How is it controlled?

Via a web-based UI or UART AT commands for full configuration and monitoring.

Q8: What is the power requirement?

9–30V DC input, consuming <250mA at 12V.

Q9: Is it suitable for industrial environments?

Yes, especially the optional -40°C to +85°C industrial-grade version.

Q10: Can it work with encoder modules?

Yes, compatible with Sihid encoder modules for integrated network video systems.

Q11: Does it support encryption?

AES256 decryption is supported for secure video streaming.

Q12: What storage devices can be used?

Micro SD (TF card) or USB flash drives.

Q13: Is it suitable for embedded applications?

Absolutely. Its compact size, low power consumption, and multiple interfaces make it ideal for embedded and OEM integration.

Q: Can I take a 5V power output from the decoder board to power other devices?

A: Yes, you can. The decoder board provides a 5V output that can be used to power external devices. However, the total current draw should not exceed 500 mA. Please refer to the image below—the 5V output point is indicated by the red arrow. Ensure proper connection and avoid overloading to maintain stable operation.

Latency Performance Summary

Test Setup:
The tests were conducted with the encoder and decoder boards connected directly via Ethernet cable.

Key Observations:

1. When the source signal is 1080p60, the end-to-end latency between the encoder and decoder is approximately 100 ms, regardless of low-latency mode, due to the direct Ethernet connection.
2. When the source signal is 4K30, the latency ranges from 270 ms to 320 ms, with slightly lower latency when the decoder display output frame rate is higher than the source signal.
3. When the source signal is 4K25, the decoder displays at 4K30. Since the decoder frame rate is higher than the source, no cumulative delay occurs, ensuring smooth playback without frame stacking.

Conclusion:
The system demonstrates predictable and stable end-to-end latency under different resolutions and frame rates. Direct Ethernet connections yield the lowest latency for 1080p60 sources, while higher-resolution 4K signals naturally introduce longer delays. The decoder’s ability to output at a higher frame rate than the source ensures smooth playback without delay accumulation.