4K IP Decoder and Full HD IP Transcoder
4K IP Decoder and Full HD IP TranscoderHDD-276
BLANKOM HDD-276 receives H.265/H.264 IP video, decodes up to UHD 2160p60 and provides HDMI plus CVBS outputs. Its IP transcoding function is limited to 1920 × 1080p60, independently of the UHD decoding capability.
Ordering Guide
- Specify source protocol/codec/service, display format, analog output and required Full HD transcoding profile
Technical Overview
One SPTS or a selected service from an MPTS is decoded at a time. The Gigabit Ethernet port is shared by streaming and management. Input protocol, codec and service selection must match the source; this is not a multichannel headend decoder.
HDMI can display UHD up to 3840 × 2160p60, while CVBS remains PAL/NTSC standard definition. Parallel HDMI/CVBS outputs do not make the analog output UHD. Embedded HDMI audio and analog stereo connect modern and legacy display systems.
The IP output can be re-encoded as H.265 or H.264 up to Full HD 60 fps, with text/logo insertion and AAC or G.711 audio. HDR compatibility depends on both source and display. Verify enclosure dimensions for the supplied hardware revision before mechanical integration.
At a Glance
INPUT
- Input service: 1 SPTS or MPTS with service selection
- Input protocols: SRT, HTTP, HLS, FLV, RTSP, RTMP/RTMPS, UDP/RTP; unicast/multicast
OUTPUT
- HDMI output: Up to 3840 × 2160p60; 1080p/i50/60, 720p50/60 and SD
- Analog output: CVBS BNC: PAL 720 × 576 or NTSC 720 × 480; parallel with HDMI
- Audio outputs: HDMI embedded stereo and analog stereo jack; AAC family, MP3, MP2, AC-3, G.711 decoding
- IP output protocols: HTTP TS/FLV, HLS, RTSP, RTMP/RTMPS, UDP/RTP, SRT; AAC or G.711 audio at 48 kHz
FEATURES
- Decoding: H.265/HEVC, H.264/AVC; up to 3840 × 2160p60; input 0.1–32 Mbps per stream
- IP transcoding limit: Maximum 1920 × 1080p60; H.265 Main or H.264 High/Main/Baseline; 5–60 fps depending on configuration
- Image functions: Brightness, contrast, hue, saturation; text/logo insertion; compatible HDR input/display required
- Management: 1 Gigabit RJ45 for streaming/management; Web GUI; firmware updates; embedded HiLinux
Ordering Guide
- Ordering: Specify source protocol/codec/service, display format, analog output and required Full HD transcoding profile
Key Features
- Decoding: H.265/HEVC, H.264/AVC; up to 3840 × 2160p60; input 0.1–32 Mbps per stream
- IP transcoding limit: Maximum 1920 × 1080p60; H.265 Main or H.264 High/Main/Baseline; 5–60 fps depending on configuration
- Image functions: Brightness, contrast, hue, saturation; text/logo insertion; compatible HDR input/display required
- Management: 1 Gigabit RJ45 for streaming/management; Web GUI; firmware updates; embedded HiLinux
System Diagram
Manufacturer reference diagram. The complete topology and required accessories depend on the project.
Typical Applications
IP stream to UHD display
Receive a compatible H.265/H.264 feed for a UHD monitor. Match source, HDMI timing and HDR capabilities; service selection identifies the required programme in an MPTS.
Legacy analog monitoring
Provide PAL/NTSC composite video to legacy equipment while using HDMI for a modern display. The CVBS path remains SD even when the source is UHD.
UHD reception with Full HD IP relay
Decode the incoming source locally and create a compatible Full HD output profile for another IP destination. Budget incoming and outgoing traffic on the shared Ethernet port.
Product Images
Family reference illustration; the depicted housing or model may differ from the selected variant.
Technical Specifications
| Parameter | Specification |
|---|---|
| Input service | 1 SPTS or MPTS with service selection |
| Input protocols | SRT, HTTP, HLS, FLV, RTSP, RTMP/RTMPS, UDP/RTP; unicast/multicast |
| Decoding | H.265/HEVC, H.264/AVC; up to 3840 × 2160p60; input 0.1–32 Mbps per stream |
| HDMI output | Up to 3840 × 2160p60; 1080p/i50/60, 720p50/60 and SD |
| Analog output | CVBS BNC: PAL 720 × 576 or NTSC 720 × 480; parallel with HDMI |
| Audio outputs | HDMI embedded stereo and analog stereo jack; AAC family, MP3, MP2, AC-3, G.711 decoding |
| IP transcoding limit | Maximum 1920 × 1080p60; H.265 Main or H.264 High/Main/Baseline; 5–60 fps depending on configuration |
| IP output protocols | HTTP TS/FLV, HLS, RTSP, RTMP/RTMPS, UDP/RTP, SRT; AAC or G.711 audio at 48 kHz |
| Image functions | Brightness, contrast, hue, saturation; text/logo insertion; compatible HDR input/display required |
| Management | 1 Gigabit RJ45 for streaming/management; Web GUI; firmware updates; embedded HiLinux |
| Power and enclosure | 12 V DC, 2 A adapter, AC 100–240 V; approximately 5 W; published 105 × 100 × 24 mm, 240 g; confirm hardware revision |
| Environment | −10 to +70 °C; 5–90% RH non-condensing |
| Ordering | Specify source protocol/codec/service, display format, analog output and required Full HD transcoding profile |
The listed values follow the official technical reference. Select the required model and configuration before ordering.
Technical FAQ
1. Can HDD-276 transcode 4K to 4K?
Decoding: H.265/HEVC, H.264/AVC; up to 3840 × 2160p60; input 0.1–32 Mbps per stream. IP transcoding limit: Maximum 1920 × 1080p60; H.265 Main or H.264 High/Main/Baseline; 5–60 fps depending on configuration.
2. How many programmes are decoded at once?
Input service: 1 SPTS or MPTS with service selection.
3. Which input protocols are accepted?
Input protocols: SRT, HTTP, HLS, FLV, RTSP, RTMP/RTMPS, UDP/RTP; unicast/multicast.
4. What is the maximum HDMI format?
HDMI output: Up to 3840 × 2160p60; 1080p/i50/60, 720p50/60 and SD.
5. Does CVBS also output UHD?
Analog output: CVBS BNC: PAL 720 × 576 or NTSC 720 × 480; parallel with HDMI.
6. Which audio outputs and codecs are available?
Audio outputs: HDMI embedded stereo and analog stereo jack; AAC family, MP3, MP2, AC-3, G.711 decoding.
7. Which protocols carry the transcoded stream?
IP output protocols: HTTP TS/FLV, HLS, RTSP, RTMP/RTMPS, UDP/RTP, SRT; AAC or G.711 audio at 48 kHz.
8. Can logos and image adjustments be applied?
Image functions: Brightness, contrast, hue, saturation; text/logo insertion; compatible HDR input/display required.
9. Is the management interface separate?
Management: 1 Gigabit RJ45 for streaming/management; Web GUI; firmware updates; embedded HiLinux.
10. What should be checked before installation?
Power and enclosure: 12 V DC, 2 A adapter, AC 100–240 V; approximately 5 W; published 105 × 100 × 24 mm, 240 g; confirm hardware revision. Environment: −10 to +70 °C; 5–90% RH non-condensing. Ordering: Specify source protocol/codec/service, display format, analog output and required Full HD transcoding profile.