Streaming Protocol

Streaming Protocols - Header

Real-Time Streaming Protocol (RTSP)

Streaming Protocols

Real-Time Streaming Protocol (RTSP) is a streaming protocol used to stream media content across a network. This protocol was designed to control video and audio streams without downloading media files, typically for fixed sites and CCTV security cameras. The benefit of RTSP is very low latency, however, it requires a very stable network connection. Commonly support video codes include h.264 and h.265. Common audio codes include AAC and mp3.

The RTSP protocol supports low-latency streaming but is not compatible with most devices and browsers. It can deliver low-latency streaming to a select group of small audiences from a dedicated server, making it a standard for video surveillance and CCTV systems.

Pros

• Segmented Streaming: Viewers are not required to download an entire video before watching it, the RTSP stream allows them to watch content before the download is complete.

Cons

• HTTP Incompatible: You cannot directly stream RTSP over HTTP, meaning there is no easy way to stream RTSP in a web browser. RTSP is designed for streaming video on private networks, like security cameras within a business

Common stream url format; rtsp://ip-address:554/descriptor or rtsp://192.168.10.101:554/live.

Real-Time Messaging Protocol (RTMP)

Streaming Protocols

Real-Time Messaging Protocol (RTMP). RTMP is a legacy protocol developed by Adobe to transfer audio and video files between a streaming server and the Adobe Flash Player. Due to its ability to stream over unreliable connections, such as cellular, it’s popular for streaming from users cell phones, action cams, or drones, directly to social media sites.

Pros

• Low Latency: RTMP ensures live video streams maintain a stable connection for the viewer, even if the internet connection is unreliable. It also allows them to easily resume the stream once their internet connection stabilizes.

• Adaptability: This protocols stream feed is adaptive and hosted on an RTMP server, meaning viewers can skip and rewind parts of the feed or join a live stream after it's begun.

• Flexibility: Developers can integrate a variety of video formats, like audio, video, and text, into one cohesive package with the RTMP protocol.

Cons

• Limited Support: Flash is a format quickly becoming obsolete, with HTML5 players taking its place. Flash currently supports RTMP, and this protocol cannot play on HTML5 players without a converter, like an HTTP-based video protocol.

HLS

Streaming Protocols

HTTP Live Streaming (HLS)

MPEGTS or MPEG-TS

Streaming Protocols

MPEG-DASH

Streaming Protocols

WebRTC

Streaming Protocols

WebRTC is an open-source project that delivers video streams to viewers with real-time latency. Initially developed for text-based chat apps and VoIP usage, its popularity has grown among video chat and conference app developers after being purchased by Google. The WebRTC protocol is a low-latency streaming solution that relies on peer-to-peer streaming (P2P); it is utilized by some of the most used apps like Google Meet, Discord, Houseparty, WhatsApp, and Facebook Messenger.

Codec

Codecs - Header

A codec is a hardware- or software-based process that compresses and decompresses data. Codecs are used in applications to play and create media files for users, as well as to send media files over a network. The term is a blend of the words coder and decoder, as well as compression and decompression.

Codecs compress -- or shrink -- media files such as video, audio and still images in order to save device space and to efficiently send those files over a network.

A codec takes data in one form, encodes it into another form and decodes it at the egress point in the communication session. Codecs are made up of an encoder and decoder.

H.264

Codecs - video

H.265

Codecs - video

Advanced Audio Codec (AAC)

Codecs - audio

Apple Lossless Audio Codec (ALAC)

Codecs - audio

Waveform Audio File Format (WAV)

Codecs - audio

Compression

Onvif

Onvif Profile

VMS

Video Management System. A Video Management System (VMS) is a software-based platform that is generally used to manage and control video surveillance cameras, recording devices, and other security components.

On-Premise

Aka On-Prem.

Cloud

Bandwidth

Bitrate

Time to Live (TTL)

TTL refers to a value set in the header of an Internet Protocol (IP) packet that tells network devices the maximum number of router hops the packet can make before it is discarded.

Cluster

Kubernetes (K8)

Edge Computing

Motion Detector

Analytic feature that monitors for any scene change or activity. Zones can be set (drawn on scene).

Face Recognizer

A NIST certificated face recognition analytics feature. Ability to detect all faces in a scene, and create whitelisted/blacklisted matches by uploading photos of persons of interest. Additional features include; gender estimation, age estimation, and emotion estimator. Supports both CPU and GPU acceleration.

Intrusion Detector

Full featured analytic library for detecting and classifying objects, custom tripwires and geofences, speed and direction filters, zones, counting, object left behind, and more. Hundreds of user-definable filters.

Motion ALPR

Vehicle license plate recognition. Requires cameras properly positioned and calibrated to view vehicle license plates (from over 200 countries in respective languages). Additional features include identify vehicle make, model, color. Ability for Whitelisting/blacklisting vehicles of interest. (vehicle make, model, color first requires accurate license plate detection).

Object Tracker AI

Object detection of over 80 everyday items including people, vehicles, backpacks, cellphones, animals, etc. Includes maritime ship (commercial vessel) detection, and weapons detection.
Object
The object tracker detects the above listed items, and assigned assigns a unique object tracker ID to identify new verses previously detected objects. This also allows counting of unique objects.

QR Detector

An R&D project for scanning Quick Response (QR) codes using any camera source. QR Code can be linked to any URL of file of user’s choice. Possible use case for warehousing, logistics, pallet management, inventory management.

TF Detection

Niche high end face recognition with the highest NIST rating on the market.

VAX ALPR

Gateway login

Enter the username associated with the gateway.

Gateway pass

Enter the password associated with the gateway.

OIDC token

Authentication token/key associated with gateway (if applicable).

Directories

Actions

These are different actions that can be performed for each device entry.

Configure: Edits the device’s preferences

Analytics: Edits the device’s assigned analytic pereferencespreferences

Delete: Removes the device from the system/Avatar

Name

The name assigned to each device.

Zone

The Zone the device is assigned to.

Location

Where the device is physically located.

State

Whether the device’s operation is On or Off.

Health Status

States if the camera is in working order or not.

Bitrate, Mb/s

Bitrate is the amount of data transmitted in an audio/video stream, affecting quality and requiring a balance for optimal viewing without buffering. (Example: A medium quality stream will be aprox 2500 kb/s or 2.5 Mb/s).

FPS

The average or set Frames Per Second the camera captures. Most video streams appearing smooth will range between 24-30 fps.

GOP - (Group of Pictures)

Related to both video frames per second (fps) and compression.

Group of Pictures, a grouping of frames (pictures) for interframe compression techniques. Longer GOPs allow for better multi-frame compression but slow down the overall delivery process for live encoding.

Generally, the more I frames the video stream has (higher GOP value), the more editable it is. However, having more I frames substantially increases bit rate needed to code the video.

Codecs

The type(s) of compression codecs used for video streams.

Picture Size

The resolution set for each camera’s stream.

#

The order in delivery priority. Sets which device deliver delivers data to the Avatar first.

Name

The name of each device.

Location

Where the sensor is physically located.

Zone

The Zone the sensor is assigned to.

State

Whether the device’s operation is On or Off.

Cloud Archive

Whether the device has cloud archive enabled on it.

Create Statement

Create a new Policy Statement

Policy Name

Enter a name for the Notification Policy.

Channel

Select how the notification should be sent.

Timeout

Select the timeout of the notification.

Message entity

Notification Counts Only
Include Notification Details

Policy type

Select the type of policy.

Audit Policy:

Event Log Policy:

SMTP server enabled

ON/OFF SMTP server.

SMTP server host

Enter SMTP server host.

SMTP server port

Enter server port.

Use SMTP TLS security

ON/OFF SMTP TLS security.

FROM field of mail

SMTP authentication

Select whether the SMTP server has authentificationauthentication.

SMTP user name

Enter the username associated with the SMTP server.

SMTP user password

Enter the password associated with the SMTP server.

EMAIL validated

States whether the email is validated

Add

Add a an LPR watch item.