Linux下配置ffmpeg环境 转AMR为MP3

参考:http://hi.baidu.com/duqingming/item/4adf34337d75b65a81f1a7e5

1. 首先安装系统基础环境

RHEL & CentOS 系列:yum install -y automake autoconf libtool gcc gcc-c++



2. 编译所需源码包(附近中在Linux环境已经可以正常使用)

yasm:http://yasm.tortall.net/Download.html(汇编器,新版本的ffmpeg增加了汇编代码)

lame:http://lame.sourceforge.net/download.php(Mp3音频解码)

OpenCore AMR (fdk-aac-0.1.3 ):http://sourceforge.net/projects/opencore-amr

FFMpeg:http://ffmpeg.org/download.html

yasm、lame、OpenCore 解压后直接使用

#./configure

#make

#make install

命令进行编译安装。



FFMpeg特殊: 

#./configure --enable-libmp3lame --enable-version3 --enable-shared

#make

#make install

#ldconfig


终端运行ffmpeg命令,出现success和已安装的扩展,则运行成功。


必须在Linux环境下授权
chmod 777 ffmpeg  或者  chmod 755 ffmpeg

Java代码
private boolean linuxToMp3(String localPath) {

try{

log.warn("**************  ffmpeg ****************");

java.lang.Runtime   rt   =   Runtime.getRuntime();
String  command   =   "ffmpeg -i " + localPath + " " + localTargetFilePath;

log.warn("ffmpeg exec command = " + command);

Process proc = rt.exec(command);
InputStream stderr = proc.getErrorStream();
InputStreamReader isr = new InputStreamReader(stderr);
BufferedReader br = new BufferedReader(isr);
String line = null;
StringBuffer sb = new StringBuffer();
while ((line = br.readLine()) != null)
sb.append(line);

log.warn("ffmpeg Process errorInfo: " + sb.toString());

int exitVal = proc.waitFor();
log.warn("ffmpeg Process exitValue: " + exitVal);

return true;
}
catch(Exception e)
{
log.warn("ffmpeg exec cmd Exception " + e.toString());
}
return false;
}


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