为什么80%的码农都做不了架构师？>>> 
FFmpeg的安装需要yasm的支持,如果转码MP4,需要faac解码包的支持
FFmpeg:http://ffmpeg.org/download.html
yasm:http://yasm.tortall.net/Download.html
faac:http://www.audiocoding.com/downloads.html
开始安装
安装:faac-1.28.tar.gz
解包 tar -xf faac-1.28.tar.gz
查看解压目录下的安装帮助文件"INSTALL"
安装分三步:
执行 ./configure
执行 make
执行 make install其中在make时会报错
mpeg4ip.h:126:58: 错误：对‘char* strcasestr(const char*, const char*)’的新声明
char *strcasestr(const char *haystack, const char *needle);
^
In file included from mpeg4ip.h:107:0,
from mp4common.h:29,
from 3gp.cpp:28:
/usr/include/string.h:365:26: 错误：使旧的声明‘const char* strcasestr(const char*, const char*)’出现歧义
extern "C++" const char *strcasestr (const char *__haystack,将./common/mp4v2/mpeg4ip.h
124 extern "C" {
125 #endif
126 char *strcasestr(const char *haystack, const char *needle);修改为
124 extern "C++" {
125 #endif
126 const char *strcasestr(const char *haystack, const char *needle);重新make
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安装yasm-1.3.0.tar.gz
解包 tar -xf yasm-1.3.0.tar.gz
查看解压目录下的安装帮助文件"INSTALL"
安装分三步:
执行 ./configure
执行 make
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安装ffmpeg-2.6.2.tar.bz2
解包 tar -xf ffmpeg-2.6.2.tar.bz2
查看解压目录下的安装帮助文件"INSTALL"
安装分三步:
执行./configure --enable-libfaac --enable-nonfree
执行 make
执行 make install运行 ffmpeg
如果出现报错如下:
ffmpeg: error while loading shared libraries: libfaac.so.0: cannot open shared object file: No such file or directory修改
vim /etc/ld.so.conf添加一行 /usr/local/lib
运行 ldconfig -v 刷新
再次运行 ffmpeg
ffmpeg version 2.6.2 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.8.3 (GCC) 20140911 (Red Hat 4.8.3-9)
configuration: --enable-libfaac --enable-nonfree
libavutil 54. 20.100 / 54. 20.100
libavcodec 56. 26.100 / 56. 26.100
libavformat 56. 25.101 / 56. 25.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 11.102 / 5. 11.102
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...到此安装完成
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运行
ffmpeg -i movie.avi movie.mp4至此可以检验是否可以正常转换