# WebrtcAudioProcessing

**Repository Path**: shunzi20220/WebrtcAudioProcessing

## Basic Information

- **Project Name**: WebrtcAudioProcessing
- **Description**: WebRTC 音频3A算法模块移植到RV1126开发板上测试
- **Primary Language**: Unknown
- **License**: BSD-3-Clause
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 2
- **Forks**: 0
- **Created**: 2025-01-23
- **Last Updated**: 2025-10-11

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

## webrtc 音频3A算法测试

### 安装依赖abseil-cpp

CMakeLists.txt 添加

```cmake
set(CMAKE_SYSTEM_NAME Linux)
SET(CMAKE_BUILD_TYPE "Release")
SET(CMAKE_CXX_FLAGS_RELEASE "$ENV{CXXFLAGS} -O3 -Wall")

set(BUILD_SHARED_LIBS ON)
set(CMAKE_CROSSCOMPILING ON)
set(ABSL_PROPAGATE_CXX_STD ON)
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14 -fPIC")

# arm 32
# SET(CMAKE_C_COMPILER   /work/xxx/host-tools/gcc/gcc-linaro-6.3.1-2017.05-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gcc)
# SET(CMAKE_CXX_COMPILER /work/xxx/host-tools/gcc/gcc-linaro-6.3.1-2017.05-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-g++)
# SET(CMAKE_FIND_ROOT_PATH /work/xxx/ramdisk/sysroot/sysroot-glibc-linaro-2.23-2017.05-arm-linux-gnueabihf/)

set(TOOLCHAIN_DIR /opt/atk-dlrv1126-toolchain)
set(CMAKE_CXX_COMPILER ${TOOLCHAIN_DIR}/usr/bin/arm-linux-gnueabihf-g++)
set(CMAKE_C_COMPILER ${TOOLCHAIN_DIR}/usr/bin/arm-linux-gnueabihf-gcc)
set(CMAKE_FIND_ROOT_PATH ${TOOLCHAIN_DIR}/arm-buildroot-linux-gnueabihf/sysroot)

set(CMAKE_SYSTEM_PROCESSOR arm.v7)
 
# aarch64
#SET(CMAKE_C_COMPILER   /work/xxx/host-tools/gcc/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-gcc)
#SET(CMAKE_CXX_COMPILER /work/xxx/host-tools/gcc/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-g++)
#SET(CMAKE_FIND_ROOT_PATH /work/xxx/ramdisk/sysroot/sysroot-glibc-linaro-2.23-2017.05-aarch64-linux-gnu/)
#set(CMAKE_SYSTEM_PROCESSOR aarch64)

```

交叉编译

```sh
cd abseil-cpp-lts_2023_01_25
mkdir build
mkdir abseil-cpp
cd build
cmake .. -DCMAKE_INSTALL_PREFIX=../abseil-cpp -DGFLAGS=OFF -DMINIGLOG=ON -DBUILD_TESTING=OFF -DBUILD_SHARED_LIBS=ON -DABSL_PROPAGATE_CXX_STD=ON -DCMAKE_CXX_FLAGS=-fPIC 
make -j8
make install 
```

### 编译webrtc-audio-processing

gitlab地址：https://gitlab.freedesktop.org/pulseaudio/webrtc-audio-processing

修改为cmake工程

交叉编译

```sh
export CC=/opt/atk-dlrv1126-toolchain/usr/bin/arm-linux-gnueabihf-gcc
export CXX=/opt/atk-dlrv1126-toolchain/usr/bin/arm-linux-gnueabihf-g++
mkdir build
cd build
cmake ..
make -j8

# 或者
sh build.sh
```



### 测试

```sh
# 编译
cd test
sh build.sh 

#把链接的so拷贝到开发板
#export LD_LIBRARY_PATH=/demo/bin/abseil-cpp/lib
adb push libabsl_* /oem/usr/lib
adb push libwebrtc_audio_processing.so /oem/usr/lib

# 在开发板播放pcm
rkmedia_ao_test -c 2 -s 1152 -v 100 -i ./3a.pcm

# ffplay播放pcm
ffplay -ar 16000 -ch_layout stereo -f s16le ./3a.pcm
```



1. 经过3A算法后，消音
2. 3A算法 6ms/次





### 参考资料

《实时语音处理实践指南》葛世超等著

[webrtc 3A移植以及实时处理](https://blog.csdn.net/qq_42956179/article/details/143912034)

[webrtc-audio-processing pulseaudio最新版本1.0交叉编译到ARM](https://blog.csdn.net/longruic/article/details/119787659)

https://github.com/shichaog/WebRTC-audio-processing  

https://github.com/jiemojiemo/webrtc-audio-processing-cmake

SpeexDSP：https://blog.csdn.net/weixin_40355471/article/details/126198285