What is NDI? NDI protocol transmission makes webcast more interesting

1. What does NDI mean?
NDI is an open protocol that enables video-compatible products to share video through a local area network.
NDI uses digital high-definition Ethernet transmission technology to directly connect front-end collection equipment (NDI digital high-definition cameras) through CAT5 or CAT6 network cables, and then through network data The link layer sends the uncompressed real-time digital high-definition signals to the receiving end NDI analysis equipment (DVR, compression card, repeater, optical transceiver, etc.) through efficient organization and sorting, so as to realize the implementation. HD-SDI transmission effect.
Compared with coaxial cable transmission, NDI transmission will have more price advantages, more stability, and stronger anti-interference ability.
And while transmitting video signals, real-time, two-way audio, two-way control signals, etc. can be transmitted, and Power over Ethernet (POE) technology can also be used, thereby reducing use costs and saving wiring costs.
Features of NDI:
1. After NDI encoding, NDI audio and video signals can transmit and receive multi-broadcast quality signals in real time through the IP network.
2. At the same time, it has the characteristics of low delay, accurate frame video, mutual recognition of data streams and communication.
2. What is the NDI interface transmission protocol?
1. NDI is a standard protocol for ultra-low latency, lossless transmission, and interactive control over IP networks;
2. The biggest difference of the NDI protocol is: NDI video transmission can get rid of traditional HDMI and SDI lines.
3. NDI protocol ultra-low latency (almost real-time), lossless transmission, two-way control.
4. After the audio and video signal is NDI encoded, it can transmit and receive multiple broadcast quality signals through the IP network in real time. At the same time, it has the characteristics of low delay, accurate frame video, mutual recognition of data streams, and communication.
5. With a new network application layer form, it simplifies the construction of the system and the transmission and calling of various signals in the system, making the system design, integration, application, and maintenance easier and more flexible.
6. It enables compatible video products to communicate, transmit and receive broadcast-quality video in a high-quality, low-latency, and frame-accurate manner, which is very suitable for switching in a live broadcast production environment.
7. NDI supports an access mechanism that allows manual input of the IP addresses of computers on other subnets that are running NDI sources.
NDI application scenarios : **
NDI can directly hot-shoe the camera, can encode SDI or HDMI video source into NDI protocol stream, video transmission through wired network or wireless WIFI network, video transmission through wired network or wireless WIFI network, reducing wiring The cost and deployment time meet the needs of studios and on-site multi-camera video production.

What are the performance advantages of NDI encoders?
The built-in 5G enhanced WIFI module can achieve more stable wireless transmission, while supporting USB expansion of wired network transmission;
built-in large-capacity lithium battery power supply, also supports 5-16v external mobile power supply, no need to consider wired power supply issues;
active heat dissipation design ( Built-in fan), adapt to high temperature working conditions, stable and reliable operation;
portable and compact, weighing only 380g, comes with a hot shoe, which is convenient for integrated camera installation;
supports the use of mobile phone/PAD terminal APP to achieve wireless remote management, convenient operation;
supports dual stream Output, the main bit rate supports 1080p60Hz video encoding, the sub-stream supports 720p 60Hz video encoding, which can be streamed to two platforms at the same time;
comes with SD/TF card slot, supports local recording, and supports NAS network storage at the same time;
support 1080p60Hz video format, output resolution can be customized;
imported chip and H.264 video coding technology, combined with video dynamic noise reduction, image enhancement and other technical processing at the same time, can achieve low bit rate encoding and ensure high-definition picture quality;