AWS USDT代付 ｜ Payment 解决方案1.概述
本文详细介绍如何为Android和iOS平台编译Amazon Kinesis Video Streams WebRTC NDK，以及如何将编译好的NDK与设备端的Amazon KVS WebRTC SDK配合使用。通过本文，您将学会完整的编译流程、配置方法和集成步骤，实现端到端的WebRTC音视频通信解决方案。
2.背景介绍
2.1 Amazon Kinesis Video Streams WebRTC** **简介
Amazon Kinesis Video Streams 提供符合标准的 WebRTC 实现作为完全托管的功能。您可以使用 Amazon Kinesis Video Streams with WebRTC 安全地进行媒体的实时流式传输，或在任何摄像头 IoT 设备与符合 WebRTC 的移动或 Web 播放器之间执行双向音频或视频交互。借助这项全面托管的功能，您不必构建、运营或扩展任何与 WebRTC 相关的云基础设施（例如信令或媒体中继服务器）便能安全地在应用程序和设备间流式传输媒体。
2.1.1 Amazon KVS WebRTC** **的拓扑结构
2.2 WebRTC NDK** **的作用
WebRTC NDK（Native Development Kit）为移动应用提供了原生的WebRTC功能支持，主要优势包括：
–
性能优化：原生代码执行效率更高，特别适合音视频处理
–
硬件加速：直接访问设备的硬件编解码器
–
低延迟：减少Java/Objective-C与原生代码之间的调用开销
–
跨平台一致性：Android和iOS使用相同的核心WebRTC代码
2.3 ** **架构概览
3.环境准备
3.1 ** **系统要求
3.1.1 Linux 环境（推荐Ubuntu 22.04+ EC2 instance）：
- 用于编译Android NDK
- 推荐xlarge，100GB可用磁盘空间
- Python 2.7+
3.1.2 macOS 环境（macOS 13.0+ EC2 instance）：
- 用于编译iOS框架
- Xcode 15.0+
- 推荐metal，100GB可用磁盘空间
- Python 3.8+
3.2 ** **必要工具安装
3.2.1 Linux** **环境配置
3.2.1.1 ** **创建编译实例
3.2.1.2 ** **安装依赖包
Shell
在Android和iOS平台编译Amazon Kinesis Video Streams WebRTC的NDK
sudo apt update && sudo apt upgrade -y
安装基础开发工具
sudo apt install -y gcc g++ libssl-dev lbzip2
安装Python
sudo apt install -y python2.7-dev python3-dev
Set the default Python command to Python 2.7
sudo update-alternatives –install /usr/bin/python python /usr/bin/python2.7 1
sudo update-alternatives –config python
3.2.2 macOS** **环境配置
3.2.2.1 ** **创建专属主机
3.2.2.2 ** **在专属主机上运行mac实例
3.2.2.3 ** **安装依赖包
Shell
安装必要工具
brew install python3 git wget curl
安装python
wget –no-check-certificate https://www.python.org/ftp/python/2.7.18/python-2.7.18-macosx10.9.pkg
sudo installer -pkg python-2.7.18-macosx10.9.pkg -target /
Test if Python 2 is installed, and the following interface appears to prove that the installation is correct
ec2-user@ip-172-31-24-147 ~ % python
Python 2.7.18 (v2.7.18:8d21aa21f2, Apr 19 2020, 20:48:48) [GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.57)] on darwin Type “help”, “copyright”, “credits” or “license” for more information.
>>>
安装Xcode命令行工具
xcode-select –install
4.WebRTC** **源码获取与配置
4.1 ** **获取depot_tools
Shell
创建编译目录
mkdir ~/
下载depot_tools
cd ~/
git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
添加到PATH
export PATH=$PATH:~/depot_tools
for Linux
echo ‘export PATH=$PATH:~/depot_tools’ >> ~/.bashrc
for macOS
echo ‘export PATH=$PATH:~/depot_tools’ >> ~/.zshrc
source ~/.bashrc
4.2 ** **下载WebRTC源码
Shell
工作目录
mkdir ~/projects/webrtc-ndk-build/
cd ~/projects/webrtc-ndk-build/
获取WebRTC源码
git clone –recursive https://github.com/hongliwo/amazon-kvs-webrtc-ndk-c.git src
cd src
5.Android NDK** **编译
5.1 ** **编译配置
5.1.1 ** **创建同步文件
Shell
创建文件 .gclient
vim .gclient
.gclient内容如下
solutions = [
{
“managed”: False,
“name”: “src”,
“url”: “https://github.com/hongliwo/amazon-kvs-webrtc-ndk-c.git”,
“custom_deps”: {},
“deps_file”: “DEPS”,
“safesync_url”: “”,
},
]
target_os = [“android”]
5.1.2 ** **执行同步
Shell
执行同步命令
gclient sync
将会有如下打印
Syncing projects: 3% ( 9/234) src/base
[0:01:57] Still working on:
[0:01:57] src/examples/androidtests/third_party/gradle
[0:01:57] src/testing
[0:01:57] src/third_party
[0:01:57] src/tools
[0:02:08] Still working on:
[0:02:08] src/examples/androidtests/third_party/gradle
[0:02:08] src/testing
[0:02:08] src/third_party
[0:02:08] src/tools
5.1.3 ** **下载aac代码
Shell
cd ~/projects/webrtc-ndk-build/src/third_party/
git clone https://github.com/hongliwo/aac-for-webrtc.git aac
5.2 ** **执行编译
Shell
指定目录
cd ~/projects/webrtc-ndk-build/src
编译
./sdk/build_android_libs_all.sh
可能的报错
error: undefined symbol: ff_sdp_write_media
>>> referenced by movenc.c:3534 (../../third_party/ffmpeg/libavformat/movenc.c:3534)
解决办法，打开如下文件
third_party/ffmpeg/libavformat/movenc.c
屏蔽这两行
ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
NULL, NULL, 0, 0, ctx);
5.3 ** **生成文件
Shell
生成好的文件如下
tree out/dist/
out/dist/
├── debug
│ ├── arm64-v8a
│ │ └── libjingle_peerconnection_so.so
│ ├── armeabi-v7a
│ │ └── libjingle_peerconnection_so.so
│ └── libwebrtc.jar
└── release
├── arm64-v8a
│ └── libjingle_peerconnection_so.so
├── armeabi-v7a
│ └── libjingle_peerconnection_so.so
└── libwebrtc.jar
6 directories, 6 files
6.iOS** **框架编译
6.1 ** **切换到macOS环境
6.1.1 ** **创建同步文件
Shell
创建文件 .gclient
vim .gclient
.gclient内容如下
solutions = [
{
“managed”: False,
“name”: “src”,
“url”: “https://github.com/hongliwo/amazon-kvs-webrtc-ndk-c.git”,
“custom_deps”: {},
“deps_file”: “DEPS”,
“safesync_url”: “”,
},
]
target_os = [“ios”]
6.1.2 ** **执行同步
Shell
执行同步命令
gclient sync
将会有如下打印
Syncing projects: 3% ( 9/234) src/base
[0:01:57] Still working on:
[0:01:57] src/examples/androidtests/third_party/gradle
[0:01:57] src/testing
[0:01:57] src/third_party
[0:01:57] src/tools
[0:02:08] Still working on:
[0:02:08] src/examples/androidtests/third_party/gradle
[0:02:08] src/testing
[0:02:08] src/third_party
[0:02:08] src/tools
ec2-user/projects/webrtc-ndk-build’
–no_auth is deprecated, this flag has no effect.
Hook ‘download_from_google_storage –directory –recursive –num_threads=10 –no_auth –quiet –bucket chromium-webrtc-resources src/resources’ took 158.92 secs
Hook ‘vpython3 src/testing/generate_location_tags.py –out src/testing/location_tags.json’ took 11.37 secs
Running hooks: 100% (29/29), done.
6.1.3 ** **下载aac代码
Shell
cd ~/projects/webrtc-ndk-build/src/third_party/
git clone https://github.com/hongliwo/aac-for-webrtc.git aac
6.3 ** **执行iOS编译
Shell
指定目录
cd ~/projects/webrtc-ndk-build/src
编译
./sdk/build_ios_libs_all.sh
可能的报错
../../third_party/abseil-cpp/absl/base/config.h:303:27: error: ‘__ENVIRONMENT_OS_VERSION_MIN_REQUIRED__’ is not defined, evaluates to 0 [-Werror,-Wundef] !(TARGET_OS_IPHONE && __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_9_0)
修复：如下三处地方加入如下的定义
./sdk/:：:：third_party/abseil-cpp/absl/base/config.h中定义
./sdk/objc/components/renderer/opengl/RTCDisplayLinkTimer.h
./sdk/objc/components/capturer/RTCCameraVideoCapturer.h
ifdef __IPHONE_OS_VERSION_MIN_REQUIRED
undef __IPHONE_OS_VERSION_MIN_REQUIRED
define __IPHONE_OS_VERSION_MIN_REQUIRED 120000
endif
6.4 ** **生成通用iOS框架
Shell
生成的内容如下
tree out/dist
out/dist
├── debug
│ └── WebRTC.framework
│ ├── Headers
│ │ └── WebRTC.h
│ ├── Info.plist
│ ├── Modules
│ │ └── module.modulemap
│ └── WebRTC
└── release
└── WebRTC.framework
├── Headers
│ └── WebRTC.h
├── Info.plist
├── Modules
│ └── module.modulemap
└── WebRTC
9 directories, 204 files
7.与设备端SDK集成
7.1 ** **设备端配置
与amazon-kvs-webrtc-sdk-c搭配使用：
Shell
下载设备端SDK
git clone –recursive https://github.com/hongliwo/amazon-kvs-webrtc-sdk-c.git
编译设备端SDK
cd amazon-kvs-webrtc-sdk-c
mkdir build && cd build
cmake .. -DBUILD_SAMPLE=ON
make -j$(nproc)
7.2 Android** **集成示例
7.2.1 ** **下载Android Sample
Shell
git clone https://github.com/awslabs/amazon-kinesis-video-streams-webrtc-sdk-android.git
7.2.2 ** **创建Android项目集成：
将生成的NDK拷贝到Sample的如下位置
Shell
tree app/libs
app/libs
├── arm64-v8a
│ └── libjingle_peerconnection_so.so
├── armeabi-v7a
│ └── libjingle_peerconnection_so.so
├── instructions.txt
└── libwebrtc.jar
相应的build.gradle如下
Plain Text
plugins {
id ‘com.android.application’
id ‘jacoco’
}
android {
compileSdk 33
defaultConfig {
namespace(“com.amazonaws.kinesisvideo.demoapp”)
applicationId “com.amazonaws.kinesisvideo.webrtc_sdk_android”
minSdk 29
targetSdk 33
versionCode 1
versionName “1.1.0”
testInstrumentationRunner “androidx.test.runner.AndroidJUnitRunner”
sourceSets {
main {
jniLibs.srcDirs = [‘libs’]
}
}
ndk {
abiFilters ‘armeabi-v7a’, ‘arm64-v8a’
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile(‘proguard-android-optimize.txt’), ‘proguard-rules.pro’
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}
dependencies {
implementation fileTree(dir: ‘libs’, include: [‘*.jar’, ‘*.aar’])
def aws_version = ‘2.75.0’
implementation(“com.amazonaws:aws-android-sdk-kinesisvideo:$aws_version@aar”) { transitive = true }
implementation(“com.amazonaws:aws-android-sdk-kinesisvideo-signaling:$aws_version@aar”) { transitive = true }
implementation(“com.amazonaws:aws-android-sdk-kinesisvideo-webrtcstorage:$aws_version@aar”) { transitive = true }
implementation(“com.amazonaws:aws-android-sdk-mobile-client:$aws_version@aar”) { transitive = true }
implementation(“com.amazonaws:aws-android-sdk-auth-userpools:$aws_version@aar”) { transitive = true }
implementation(“com.amazonaws:aws-android-sdk-auth-ui:$aws_version@aar”) { transitive = true }
implementation ‘org.awaitility:awaitility:4.2.0’
implementation ‘org.json:json:[已去除电话]’
implementation ‘com.google.guava:guava:28.1-android’
implementation ‘com.google.code.gson:gson:2.10.1’
implementation ‘org.apache.commons:commons-lang3:3.9’
implementation(“com.squareup.okhttp3:okhttp:4.12.0”)
//implementation ‘org.webrtc:google-webrtc:1.0.+’
implementation ‘androidx.appcompat:appcompat:1.6.1’
implementation ‘com.google.android.material:material:1.9.0’
implementation ‘androidx.constraintlayout:constraintlayout:2.1.4’
testImplementation ‘junit:junit:4.13.2’
androidTestImplementation ‘androidx.test.ext:junit:1.1.5’
androidTestImplementation ‘androidx.test.espresso:espresso-core:3.5.1’
}
7.3 iOS** **集成示例
7.3.1 ** **替换如下Framework
位置如下：
Shell
tree Swift/Pods/GoogleWebRTC/Frameworks
Swift/Pods/GoogleWebRTC/Frameworks
├── frameworks
│ └── WebRTC.framework
│ ├── Headers
│ │ └── WebRTC.h
│ ├── Info.plist
│ ├── Modules
│ │ └── module.modulemap
│ └── WebRTC
8.测试与验证
8.1 ** **端到端测试流程
8.1.1 ** **设备端启动：
Shell
cd amazon-kvs-webrtc-sdk-c/build
export AWS_DEFAULT_REGION=us-west-2
export AWS_ACCESS_KEY_ID=your_access_key
export AWS_SECRET_ACCESS_KEY=your_secret_key
./samples/kvsWebrtcClientMaster test-channel 0 aac h265
8.1.2 ** **移动端连接
- Android：运行集成了WebRTC NDK的Android应用
- iOS：运行集成了WebRTC框架的iOS应用
- 音频双向通信
- 视频双向传输
- 编解码器协商（H.264/H.265, Opus/AAC）
8.2 ** **验证功能：
9.总结
本文详细介绍了Amazon KVS WebRTC NDK的完整编译和使用流程。通过系统的环境配置、源码编译、平台集成和测试验证，您可以成功构建支持H.264/H.265视频编解码和Opus/AAC音频编解码的移动端WebRTC解决方案。
关键要点：
- 正确配置编译环境和依赖工具
- 启用所需的编解码器支持
- 遵循平台特定的集成最佳实践
- 进行全面的功能和性能测试
这套解决方案为IoT设备与移动端之间的实时音视频通信提供了高性能、低延迟的技术基础。
附录
参考资料
代码仓库
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