CentOS7安装ffmpeg

首先在官网http://ffmpeg.org/download.html下载ffmpeg-4.2.1.tar.bz2

以下为安装步骤：

　　1、使用工具将源码包上传至Linux主机

2、解压源码包

　　　 进入该文件夹下：cd /usr/ffmpeg/（这里我是安装到usr目录下新建的ffmpeg文件夹中）

解压该源码包：tar -jxvf ffmpeg-4.2.1.tar.bz2

[bhsoft@localhost ~]$ cd /usr/ffmpeg/
[bhsoft@localhost ffmpeg]$ tar -jxvf ffmpeg-4.2.1.tar.bz2

　　3、进入到解压完成的ffmpeg-4.2.1目录下安装yasm（如已安装跳过此步骤）

安装yasm命令：yum install yasm

[bhsoft@localhost ffmpeg]$ cd ffmpeg-4.2.1/
[bhsoft@localhost ffmpeg-4.2.1]$ yum install yasm

中间遇到Is this ok 选择y，如图

　  4、

Normal
0

7.8 磅
0
2

false
false
false

EN-US
ZH-CN
X-NONE

/* Style Definitions */
table.MsoNormalTable
{mso-style-name:普通表格;
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman",serif;}

安装yasm完毕后执行命令

[bhsoft@localhost ffmpeg-4.2.1]$ ./configure --enable-shared --prefix=/usr/ffmpeg

5、执行make命令（这一步时间比较长，请耐心等待）

Normal
0

7.8 磅
0
2

false
false
false

EN-US
ZH-CN
X-NONE

/* Style Definitions */
table.MsoNormalTable
{mso-style-name:普通表格;
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman",serif;}

[bhsoft@localhost ffmpeg-4.2.1]$ make

6、

Normal
0

7.8 磅
0
2

false
false
false

EN-US
ZH-CN
X-NONE

/* Style Definitions */
table.MsoNormalTable
{mso-style-name:普通表格;
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman",serif;}

执行make install（安装）命令

[bhsoft@localhost ffmpeg-4.2.1]$ make install

7、

Normal
0

7.8 磅
0
2

false
false
false

EN-US
ZH-CN
X-NONE

/* Style Definitions */
table.MsoNormalTable
{mso-style-name:普通表格;
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman",serif;}

修改文件/etc/ld.so.conf

使用 vim /etc/ld.so.conf命令打开文件

[bhsoft@localhost ffmpeg-4.2.1]$ vim /etc/ld.so.conf

在文件后面添加 /usr/ffmpeg/lib/

     然后执行ldconfig命令使其生效

[bhsoft@localhost ffmpeg-4.2.1]$ ldconfig

8、

Normal
0

7.8 磅
0
2

false
false
false

EN-US
ZH-CN
X-NONE

/* Style Definitions */
table.MsoNormalTable
{mso-style-name:普通表格;
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman",serif;}

配置环境变量

[bhsoft@localhost ffmpeg-4.2.1]$ vim /etc/profil

使用 vim /etc/profile命令打开profile文件，在文件末添加环境变量：

#set ffmpeg environment

PATH=$PATH:/usr/ffmpeg/bin

export PATH

随后执行 source /etc/profile使配置生效  


[bhsoft@localhost ffmpeg-4.2.1]$ source /etc/profile

9、查看是否配置成功

Normal
0

7.8 磅
0
2

false
false
false

EN-US
ZH-CN
X-NONE

/* Style Definitions */
table.MsoNormalTable
{mso-style-name:普通表格;
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman",serif;}

用命令ffmpeg -version查看，出现下图信息即安装成功

  Normal
  0

  7.8 磅
  0
  2

  false
  false
  false

  EN-US
  ZH-CN
  X-NONE





 /* Style Definitions */
 table.MsoNormalTable
	{mso-style-name:普通表格;
	mso-tstyle-rowband-size:0;
	mso-tstyle-colband-size:0;
	mso-style-noshow:yes;
	mso-style-priority:99;
	mso-style-parent:"";
	mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
	mso-para-margin:0cm;
	mso-para-margin-bottom:.0001pt;
	mso-pagination:widow-orphan;
	font-size:10.0pt;
	font-family:"Times New Roman",serif;}



  Normal
  0

  7.8 磅
  0
  2

  false
  false
  false

  EN-US
  ZH-CN
  X-NONE





 /* Style Definitions */
 table.MsoNormalTable
	{mso-style-name:普通表格;
	mso-tstyle-rowband-size:0;
	mso-tstyle-colband-size:0;
	mso-style-noshow:yes;
	mso-style-priority:99;
	mso-style-parent:"";
	mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
	mso-para-margin:0cm;
	mso-para-margin-bottom:.0001pt;
	mso-pagination:widow-orphan;
	font-size:10.0pt;
	font-family:"Times New Roman",serif;}

Normal
0

7.8 磅
0
2

false
false
false

EN-US
ZH-CN
X-NONE

/* Style Definitions */
table.MsoNormalTable
{mso-style-name:普通表格;
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman",serif;}