系统版本：CentOS Linux release 7.3.1611 (x64)
(理论上 CentOS 7.x x64 通用)

安装的freeswitch可以实现音视频通话、以及视频录制、直播推流等功能（视频模块的功能较多可以参考一下）。要实现视频录制功能的逻辑需要自己去修改dialplan，这一块我就不说多了，大家可以去看下我另外一个博客（ freeswitch之视频录制）

首先需要保证你的计算机能够连上网！！能上网！！要是连不上yum源，那就不太方便了。

废话不多说先帖步骤（中途需要说明的会简单注明一下，如果有不明白的地方，欢迎和我讨论）

准备工作：

sed -i '/SELINUX/s/enforcing/disable/g' /etc/selinux/config
systemctl disable wpa_supplicant.service
systemctl stop wpa_supplicant.service
systemctl disable dbus-org.fedoraproject.FirewallD1.service
systemctl disable dbus-org.freedesktop.NetworkManager.service
systemctl disable dbus-org.freedesktop.nm-dispatcher.service
systemctl disable firewalld.service
systemctl disable irqbalance.service
systemctl disable NetworkManager-dispatcher.service
systemctl disable NetworkManager.service
systemctl disable tuned.service
systemctl stop dbus-org.fedoraproject.FirewallD1.service
systemctl stop dbus-org.freedesktop.NetworkManager.service
systemctl stop dbus-org.freedesktop.nm-dispatcher.service
systemctl stop firewalld.service
systemctl stop irqbalance.service
systemctl stop NetworkManager-dispatcher.service
systemctl stop NetworkManager.service
systemctl stop tuned.service

这些具体就不细说，百度一下就可以知道。目的就是让你后边少遇到麻烦（完事记得重启电脑）

_____________________________需要使用数据库的可以看，不需要的跳过去吧_________________________________________
使用的时候有需要数据库的，可以参考一下这块。没有的就跳过去吧（数据库的话  freeswitch支持ODBC）

yum -y install mariadb mariadb-devel mariadb-server mariadb-libs

覆盖复制 目录 db/conf/my.cnf 到 /etc/my.cnf  (可以使用 WinSCP / pscp 之类的)
*** 数据库配置未做优化，实际应用需要优化 ***
systemctl enable mariadb.service
systemctl restart mariadb.service
/usr/bin/mysqladmin -u root password"test123456"   为数据库建立用户及密码。

mysql -u root -ptest123456

mysql 命令：

CREATE DATABASE IF NOT EXISTS live default charset utf8 COLLATE utf8_general_ci;
GRANT ALL PRIVILEGES ON live.* TO live@localhost IDENTIFIED BY 'live-PW' WITH GRANT OPTION;
GRANT ALL PRIVILEGES ON live.* TO live@127.0.0.1 IDENTIFIED BY 'live-PW' WITH GRANT OPTION;
exit

yum -y install unixODBC unixODBC-devel mysql-connector-odbc

echo "UsageCount =1" >> /etc/odbcinst.ini
echo "Threading =0" >> /etc/odbcinst.ini
/etc/odbc.ini  配置DSN（不同的数据库配置不同  酌情处理）

参考如下：
[live]
Driver = /usr/lib64/libmyodbc5.so
Database = live    (你要用的数据库)
Server = localhost  （你要连接的数据库的计算机ip——这里是本机）
Username = root （连接数据库的用户）
Password = test123456 （连接数据库的密码）
Port = 6868  （我数据库运行的端口   自己看看自己的是多少）
Threading = 0
OPTION = 67108864
Socket = /var/lib/mysql/mysql.sock

测试ODBC输入：isql  live  root  test123456
出现Connected!，说明ODBC成功连接
___________________________________________________________________________________________

接下来就开始安装freeswitch了   
yum -y install git gcc-c++ autoconf automake libtool wget python ncurses-devel zlib-devel libjpeg-devel openssl-devel e2fsprogs-devel \
    sqlite-devel libcurl-devel pcre-devel speex-devel ldns-devel libedit-devel vim-common vim-enhanced \
    postgresql-devel  libsndfile  libsndfile-devel libsndfile-utils net-tools psmisc \
    minizip minizip-devel  unzip zip gzip bzip2-devel bzip2 libzip libzip-devel gdb \
    libnotify libnotify-devel libibmad libibmad-devel libxcb-devel alsa-lib-devel libgcrypt-devel \
    openssl-devel nasm*  lua-devel lua  net-snmp net-snmp-devel net-snmp-utils \
    libpng-devel openjpeg-devel libtool-ltdl libtool-ltdl-devel flex bison

export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/lib64/pkgconfig
echo "/usr/local/lib" >> /etc/ld.so.conf
echo "/usr/local/lib64" >> /etc/ld.so.conf

ldconfig

之后安装一些依赖包（源码安装——之后我也会上传到这边：资源包下载地址）

automake
xz -d automake-1.14.tar.xz
tar -xf automake-1.14.tar
cd automake-1.14
./configure --prefix=/usr/local
make
make install


opus
tar -zxf opus-1.1.4.tar.gz
cd opus-1.1.4
./configure --prefix=/usr/local
make
make install
yasm

yasm
tar -zxf yasm-1.3.0.tar.gz
cd yasm-1.3.0
./configure --prefix=/usr/local
make
make install


x264
tar -jxf last_x264.tar.bz2
cd x264-snapshot-20170329-2245/
./configure --prefix=/usr/local --enable-shared
make
make install


libfdk aac
tar -zxf fdk-aac-0.1.5.tar.gz
cd fdk-aac-0.1.5
export PATH=/usr/bin:$PATH
./autogen.sh
./configure --prefix=/usr/local
make
make install
export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin


flite
tar -jxf flite-2.0.0-release.tar.bz2
cd flite-2.0.0-release
./configure --prefix=/usr/local --with-pic --with-lang --with-lex
make
make install


openh264
tar -zxf openh264-1.4.0.tar.gz
cd openh264-1.4.0
make
make install


FFmpeg
tar -zxf FFmpeg-n2.6.8.tar.gz
cd FFmpeg-n2.6.8
./configure --prefix=/usr/local --enable-avresample --enable-pic --enable-shared  --enable-libopenh264  --enable-libx264  --enable-gpl --enable-libfdk_aac --enable-nonfree --enable-libflite
make
make install


libvpx
tar -zxf libvpx-1.5.0.tar.gz
cd libvpx-1.5.0
./configure --prefix=/usr/local --enable-pic --disable-static --enable-shared
make
make install


libyuv
tar -zxf libyuv.tar.gz
cd libyuv
make -f linux.mk CXXFLAGS="-fPIC -O2 -fomit-frame-pointer -Iinclude/"
make install


libmad
tar -zxf libmad-0.15.1b.tar.gz
cd libmad-0.15.1b
./configure --prefix=/usr/local
sed -i 's/-fforce-mem//g' Makefile
make
make install


vlc
xz -d vlc-2.2.3.tar.xz
tar -xf vlc-2.2.3.tar
cd vlc-2.2.3
./configure --prefix=/usr/local --disable-a52
make
make install


mp4v2
tar -jxf mp4v2-2.0.0.tar.bz2
cd mp4v2-2.0.0
./configure --prefix=/usr/local
make

make install

freeswitch
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/lib64/pkgconfig
export PATH=/usr/bin:$PATH
ldconfig
cd /usr/src (FREESWITCH 必须在这个目录编译，不成功没准就是这了)
结果目录为： /usr/src/freeswitch-1.6.8
tar -zxf freeswitch-1.6.8.tar.gz
cd freeswitch-1.6.8
./rebootstrap.sh
./configure --prefix=/opt/fs168 --enable-core-odbc-support --enable-core-pgsql-support --with-openssl --enable-sctp
make
make install
echo "/opt/fs168/lib/freeswitch/mod" >> /etc/ld.so.conf      (FREESWITCH安装目录，根据实际修改)
ldconfig

好了   具体的安装步骤就到这了。

之后 我会讲一下freeswitch基础的使用以及相关配置，最后也会简单的说说源码