c - 如何编译自定义PulseAudio模块？

Question

我正在尝试编写一个 PulseAudio 模块。首先，我为 this 提到的模块编写了以下最少代码文档。

#include <pulsecore/module.h>
int pa__init(pa_module *m)
{
    return 0;
}

我尝试使用以下命令编译它:

gcc -g -shared -o module-test.so module-test.c

但它给出了错误:

 pulsecore/module.h: No such file or directory
 #include <pulsecore/module.h>
          ^~~~~~~~~~~~~~~~~~~~
 compilation terminated.

网上查了一下，发现必须安装libpulse-dev，但是我已经安装了pulseaudio和libpulse-dev > 如下所示。

jyotesh@jyotesh-VM:~$ sudo apt install pulseaudio libpulse-dev
[sudo] password for jyotesh: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
libpulse-dev is already the newest version (1:11.1-1ubuntu7.2).
pulseaudio is already the newest version (1:11.1-1ubuntu7.2).
0 upgraded, 0 newly installed, 0 to remove and 10 not upgraded.

我尝试使用locate、find、apt-file等搜索头文件。我无法找到位置这个头文件是。

有人知道如何编译PulseAudio模块吗？

Answer 1

我能够按照 here 中的步骤编译代码并构建 module-test.so 文件和 here 。我将在这里重复这些步骤:

首先，我从源代码构建并安装了 PulseAudio v12.2。

# Clone PulseAudio git repository
git clone https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git

# I wanted 12.2 version of PulseAudio, so I checked out that version
cd pulseaudio
git checkout tags/v12.2

# Install the dependencies
sudo apt-get -y build-dep pulseaudio

# Build PulseAudio source code
./bootstrap.sh
make

# Install and configure dynamic linker run-time bindings (so that
# ld can find the libraries that you specify while building your module)
sudo make install
sudo ldconfig

在此之后，我为模块编写了最少的代码。

#include <config.h> // this is required, otherwise you will get compilation errors
#include <pulsecore/module.h>
int pa__init(pa_module *m)
{
    return 0;
}

为了编译它，我使用了命令

gcc -g -shared -fPIC -I/home/jyotesh/pulseaudio -I/home/jyotesh/pulseaudio/src -L/home/jyotesh/pulseaudio/.libs -L/usr/local/lib/pulseaudio -o module-test.so module-test.c -lpulsecore-12.2 -lpulsecommon-12.2 -lpulse