EdgeCenter Demo – Stream Live Video Online on Android

Introduction

Set up live streaming in 15 minutes in your Android project instead of 7 days of work and setting wild parameters of codecs, network, etc. This demo project is a quick tutorial how to stream live video from your own mobile app to an audience of 1 000 000+ viewers like Instagram, Youtube, etc.

Features

1. Authorization
2. HLS & MPEG-DASH playback
3. RTMP streaming
4. Creating a new live stream
5. Camera switching
6. Mute mode
7. Video:
   • Network adaptive bitrate mechanism
   • Source: front and back cameras
   • Orientation: portrait
   • Codec: AVC/H.264
   • Configurable bitrate, resolution, iFrameInterval, encoder profile
8. Audio:
   • Codec: AAC
   • Configurable bitrate, sample rate, stereo/mono
   • Processing: noise suppressor, echo cancellation

Testing the app with your EdgeCenter account

1. You can clone this project and run it in Android Studio, where you can test it either by connecting a real device or through an Android emulator
2. Sign in with your EdgeCenter account email and password.
3. On the Streams screen, you can watch the available streams
4. On the Select stream screen, you can select/create a stream to start streaming
5. On the Start Broadcast screen, you can start broadcasting, set the video quality, and select push url or backup push url for streaming

Screenshots

Quick Start

1. Compile

You will need a third party library to implement RTMP streaming. In this project, rtmp-rtsp-stream-client-java was used. To use it, you need to specify this in your build.gradle:

allprojects {
  repositories {
    maven { url 'https://jitpack.io' }
  }
}
dependencies {
  implementation 'com.github.pedroSG94.rtmp-rtsp-stream-client-java:rtplibrary:2.1.7'
}

2. Permissions

In order to broadcast, you will also need an internet connection, a camera and a microphone. To use them, add the following permissions to your app's AndroidManifest.xml file:

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.RECORD_AUDIO"/>

3. Layout

To display the stream from the camera on the smartphone screen, you will need OpenGlView, which is implemented in the library used.

<com.pedro.rtplibrary.view.OpenGlView
        android:id="@+id/openGlView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:keepScreenOn="true"
        android:visibility="gone"

        app:keepAspectRatio="true"
        app:aspectRatioMode="adjust"/>

4. Start streaming

Streaming with default params:

val rtmpCamera2 = RtmpCamera2(openGlview, connectCheckerRtmp)

if (rtmpCamera2.prepareAudio() && rtmpCamera2.prepareVideo()) {
   rtmpCamera2.startStream("rtmpUrl")
}
rtmpCamera2.stopStream()

Streaming with custom params:

val rtmpCamera2 = RtmpCamera2(openGlview, connectCheckerRtmp)

val audioIsReady = rtmpCamera2.prepareAudio(
   bitrate: Int,
   sampleRate: Int,
   isStereo: Boolean,
   echoCanceler: Boolean,
   noiseSuppressor: Boolean
)

val videoIsReady = rtmpCamera2.prepareVideo(
   width: Int,
   height: Int,
   fps: Int,
   bitrate: Int,
   iFrameInterval: Int,
   rotation: Int
)

if (audioIsReady && videoIsReady) {
   rtmpCamera2.startStream("rtmpUrl")
}
rtmpCamera2.stopStream()

You can find out how to get rtmpUrl for streaming in the EdgeCenter API documentation.

Requirements

• The presence of an Internet connection on the device
• The presence of a camera and microphone on the device.
• Anroid min API 23

License

  MIT License
  
  Copyright (c) 2023 Edge-Center
  
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:
  
  The above copyright notice and this permission notice shall be included in all
  copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  SOFTWARE.