---
title: Purpose
url: https://doc.pstreamer.tv/en/install/intro.html
lang: en
product: Perfect Streamer
version: 1.13.3.445
---

# Purpose

![Perfect Streamer](../_images/PS_illustration_en.jpg)

The **Perfect Streamer** program is designed to transmit MPEG-TS streams over the public Internet with packet loss and delays. It uses Perfect Stream (**PS1**), an in-house UDP-based protocol. The standard **Pro-MPEG / RTP+FEC** (also known as SMPTE 2022-1/2) and **SRT** protocols are also supported, which allows organizing channels both between **Perfect Streamer** instances and with other programs or equipment that support these protocols.

- **PS1** transport protocol works on the principle of Automatic Repeat reQuest (ARQ). It has low resource consumption and allows to transmit high bitrate streams.
- **Pro-MPEG / RTP+FEC** (Pro-MPEG COP3, also known as SMPTE 2022-1/2) — RTP with forward error correction (FEC). Described in the IEEE standard ([https://ieeexplore.ieee.org/document/6738329](https://ieeexplore.ieee.org/document/6738329)) and supported by a range of equipment. Advantage — low latency. Disadvantage — high additional traffic, and it works poorly with large packet losses.
- **SRT** is an open protocol developed by Haivision. It is based on the UDT protocol. It is widely adopted and has good packet-loss compensation characteristics.
- **RIST** is an open protocol. It is based on RTP/RTCP. It works on the Automatic Repeat reQuest (ARQ) principle without ACK, only NACK, which provides high efficiency.

Standard transport protocols such as HLS, HLS SSL, MPEG-DASH, UDP, RTP, RTSP, HTTP, etc. are supported.

A transcoder is available with support for Nvidia Encoder, Intel VPL (Intel Media SDK/Intel QSV) and Software CPU.

The program features stream redundancy, an EPG server, a multiplexer and demultiplexer, an EIT generator, work with DVB cards, a professional analyzer (TR 101 290 and more advanced), graphs, AES encryption, mosaic, modification of metadata in MPEG-TS, and more.

Integration with Zabbix, Grafana and other monitoring systems is supported.