Convert video format from flv to avi

最近由于需要将一些视频由flv格式转化为avi格式，为了自动化转换，我写了如下脚本：

#!/bin/bash



FFCMD='/cygdrive/c/work-dir/ffmpeg/ffmpeg.exe'  # path to ffmpe tools



#check output directory exist

if ! test -d $2;

then

  mkdir $2

fi



#convert flv to avi

for f in $(ls $1/*.flv);

do

  if test -f $f

  then

    echo -e "\nConverting $f"

    FILENAME=$(basename $f | cut -d '.' -f 1)

    #echo $FILENAME

    $FFCMD -i $f -r 25 -b 750k -y $FILENAME.avi 2>> log.txt

    mv -f $FILENAME.avi $2

  else

      echo -e "\nSkipping $f - not a regular file";

  fi

done  



#Usage#

#You can convert the all of flv files in flv-folder/ to avi file located in out-avi-folder/ by following command

#$./convert-flv-2-avi.sh flv-folder/  out-avi-folder/

 

对于视频/音频的转换，一般都会用到ffmpeg这个工具，详情可以参考：http://www.ffmpeg.org/