# LLS-Player

**Repository Path**: Jakey870_admin/lls-player

## Basic Information

- **Project Name**: LLS-Player
- **Description**: 低延时直播（Low-Latency Streaming，LLS）是网易云信推出的低延时、强同步、高质量的直播产品。低延时直播产品基于云信 WE-CAN 全球智能路由网络，为开发者提供毫秒级延时、多平台同步、高可靠高并发的直播服务。 集成网易云信播放器 SDK/NERTD 插件，实现毫秒级延时、稳定流畅的高质量直播场景。
- **Primary Language**: C++
- **License**: MIT
- **Default Branch**: master
- **Homepage**: https://yunxin.163.com/delay-live
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 2
- **Created**: 2022-12-07
- **Last Updated**: 2022-12-07

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# **Overview of GrowthEase Low Latency** **Player SDK**

A low-latency player SDK is implemented by GrowthEase based on WebRTC. Developers only need to access the SDK and make small changes to the player to have low-latency ability of live streaming.

The SDK provides a set of simple and easy-to-use interfaces, allowing developers to quickly integrate the low-latency live streaming function into existing players by calling the API of the SDK. At the same time, the SDK also encapsulates the API into a kind of FFmpeg plug-in, which is a type of FFmpeg demuxer. Developers only need to compile the SDK and FFmpeg plug-in source code into their own FFmpeg, and do not need to modify the player.By replacing the playback URL, you can directly reuse the original process to have low-latency playback capabilities.



## **Features**

- Low-latency pull streaming, and high anti-weak network performance
- Support OPUS and AAC, of which AAC supports ADTS and LATM, including AAC-LC, AAC-HE, AAC-HEv2
- Support H264
- Video callback H264 bit stream, audio callback PCM data
- Support Windows platform



## **SDK component architecture**

The SDK is mainly divided into three modules:

- FFmpeg plug-in: Rtd Demuxer

- RtdEngineImpl: WebRTC encapsulation layer, including API、engine creation、signaling establishment、media data reception and callback, etc.

- WebRTC: Media establishment、data reception、packet sequencing and framing, etc.

 ![输入图片说明](images/SDK%E6%A8%A1%E5%9D%97%E5%9B%BE.png)



## **SDK API call mode**

- FFmpeg plugin integration method

Directly put the src/rtd/ffmpeg/rtd_dec.c file and SDK dynamic library(rtd.dll) into FFmpeg and compile them together. The player does not need to be changed. Low-latency live streaming can be achieved simply by replacing the pull stream URL.

- API integration method

 ![输入图片说明](images/API%E9%9B%86%E6%88%90%E6%96%B9%E5%BC%8F.png)



## **Overview of Integration Methods**

[Windows Integration](https://gitee.com/GrowthEase/lls-player/blob/master/docs/Windows%E9%9B%86%E6%88%90%E7%AE%80%E4%BB%8B.md)

[Introduction in Chinese](https://gitee.com/GrowthEase/lls-player/blob/master/README.md)