DCH-5300EC H.265/H.264 HD Live Encoder

Description

DCH-5300EC H.265/H.264 HD Live Encoder​

​Product Overview​
The DCH-5300EC is a high-definition live encoder supporting UHD/HD HDMI and HD SDI signal input/output. It enables simultaneous HDMI and SDI encoding/decoding, compatible with multiple signal sources such as satellite receivers, CCTV cameras, Blu-ray players, and set-top boxes. Equipped with H.265/H.264 encoding capabilities, it decodes local IP streams into H.264/H.265 formats for remote signal monitoring. Renowned for reliability and high performance, it is widely deployed in hotels, schools, apartments, clubs, and security surveillance systems

• ​Video/Audio Codecs:
  • H.264/H.265 video encoding/decoding
  • MPEG-1 Layer II & MPEG-4 AAC audio encoding/decoding
• ​Resolution Support:
  • Input/Output: 1280×720 to 3840×2160 (4K UHD)
• ​Dual Encoding Outputs:
  • HDMI encoding: Up to 4K@30Hz
  • SDI encoding: Up to 1080P@60Hz
• ​IP Input Decoding:
  • HDMI output: Up to 4K@30Hz
  • SDI output: Up to 1080P@60Hz
• ​Stream Protocols:
  • Input/Output: UDP/RTP/RTSP/RTMP/HTTP/HLS/SRT
• ​Customization & Control:
  • Program parameters: Name, PID, PMT PID, Video PID
  • Effects: Logo, watermark, scrolling subtitles, mosaic, timestamp
  • Layouts: 4-screen, 1+2 split, Picture-in-Picture (PiP)
• ​Advanced Functions:
  • Multi-platform synchronous live streaming
  • Video rotation (90°/180°/270°), cropping, and smart encoding (SmartP/DualP/ROI)
  • Real-time monitoring via HDMI/SDI output
• ​System Management:
  • Web-based multilingual (Chinese/English) network management
  • 19-inch standard rack-mountable design
  • Redundant dual power supply for stable operation

​Technical Notes​

1. ​Codec Efficiency:
   • ​H.265​ reduces bandwidth by ≈50% vs. H.264, ideal for 4K streaming
   • ​AAC-LC audio​ at 32–256 Kbps ensures high-fidelity stereo output.
2. ​Interface Specifications:
   • ​HDMI: Consumer-grade, short-distance transmission (≤15m).
   • ​SDI: Professional-grade locking interface (BNC), supports long-distance transmission (>100m).
3. ​Deployment Flexibility:
   • Dual power supply and rack-mount design suit 24/7 operation in critical environments (e.g., security control rooms).
   • SRT protocol enhances transmission stability in high-latency networks

   • Video Input & Compression Encoding​

     ​Item​	​Specifications​
     ​Input Interfaces​	HDMI × 1, SDI × 1
     ​Encoding Standards​	H.265 Main Profile Level 5.0; H.264 Baseline/Main/High Profile Level 5.1
     ​Sampling Format​	YCbCr 4:2:0
     ​Resolutions/Frame Rates​	2160P@30Hz (HDMI only); 1080P@50/60/30Hz; 1080I@25/29.97Hz; 720P@50/59.94/25/29.97Hz
     ​Effect Overlays​	Logo, watermark, subtitles, scrolling text, mosaic, timestamp
     ​Aspect Ratio​	16:9
     ​Bitrate Control​	CBR, VBR, AVBR (recommended), FIXQP
     ​Intelligent Encoding	SmartP (intelligent prediction), DualP (dual encoding), ROI (Region of Interest encoding)
     ​Video Processing​	Supports 90°/180°/270° rotation; top/bottom/left/right cropping

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     ​Audio Input & Compression Encoding​

     ​Item​	​Specifications​
     ​Input Interfaces​	HDMI embedded × 1, SDI embedded × 1, Line × 1
     ​Encoding Standards​	MPEG-1 Layer II, MPEG-4 AAC-LC
     ​Sampling Rate​	48kHz
     ​Bitrate Range​	MPEG-1 Layer II: 32~256 Kbps; AAC-LC: 32~256 Kbps (both support stereo)

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     ​Key Technical Notes​

     1. ​Interface Differences:
        • ​HDMI: Consumer-grade interface for short-distance transmission (≤15m).
        • ​SDI: Professional-grade locking interface (BNC coaxial) with strong anti-interference, supporting transmission over hundreds of meters

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     2. ​Intelligent Encoding:
        • ​ROI: Allocates higher bitrates to key areas to enhance visual quality.
        • ​AVBR: Dynamically adjusts bitrates to balance quality and bandwidth, ideal for unstable networks

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     3. ​Resolution Limits: 2160P resolution requires HDMI input; data port is prioritized for management access to ensure bandwidth stability.