Parameter

NDI®

NDI®|HX

NDI®|HX2

Transport

TCP/UDP/Multi-TCP

UDP   (TCP)

TCP/UDP/Multi-TCP

Image Format

Size   / Aspect Independent

Size   / Aspect Independent

Size   / Aspect Independent

Tally Feedback

Yes

Yes

Yes

Bidirectional Device Control

Yes

Yes

Yes

Integrated Alpha Channel

Yes

No

No

Compression

NDI® Codec

HX   (H.264)

H.264/H.265

Connection

Socket,   Unicast / Multicast and FEC

Unicast/MultiCast

Socket,   Unicast / Multicast and FEC

HD (1080i) Data Rate

~   100 Mbit/s

8-20   Mbit/s

1-50   Mbit/s

Essence Packing

Discrete   Audio, Metadata and Video Frame packets, single connection

Delivered   as Discrete Audio, Metadata and Video Frame packets, single connection

Discrete   Audio, Metadata and Video Frame packets, single connection

Infrastructure

Gigabit   / Load Balanced Multi NIC / 10GBit

Gigabit   / Wireless

Gigabit   / Wireless

Service Discovery

Bonjour   (mDNS), NDI® Access (manual), Server (NDI®4)

automatic   via HX Driver

Bonjour   (mDNS), NDI® Access (manual), Server (NDI®4)

API

free license, SDK   Libraries for Win(x86), Mac, Linux(x86 & ARM), iOS, FPGA reference

hardware   encode, Decode with NDI® Libraries

Send   with NDI® Embedded SDK, Receive with Free NDI® Libraries