I am trying to re-compile sox source with mp3 support on CentOS 5. Note sox-12.18.1-1.el5_5.1 has been installed on my CentOS machine for a while.
Following http://techblog.netwater.com/?p=4, I installed the following packages using yum.
yum install gcc-c++ libmad libmad-devel libid3tag libid3tag-devel lame lame-devel flac-devel libvorbis-devel make
./configure shows the following.
BUILD OPTIONS
Debugging build............no
Distro name ...............not specified!
Dynamic loading support....no
Pkg-config location........$(libdir)/pkgconfig
Play and rec symlinks......yes
Symlinks enabled...........yes
OPTIONAL DEVICE DRIVERS
ao (Xiph)..................no
alsa (Linux)...............no
coreaudio (Mac OS X).......no
sndio (OpenBSD)............no
oss........................yes
pulseaudio.................no
sunaudio...................no
OPTIONAL FILE FORMATS
amrnb......................no
amrwb......................no
ffmpeg.....................no
flac.......................yes
gsm........................yes (in-tree)
lpc10......................yes (in-tree)
mp3........................yes
id3tag....................yes
lame......................yes
dlopen lame...............no
mad.......................yes
dlopen mad................no
oggvorbis..................yes
sndfile....................no
wavpack....................no
OTHER OPTIONS
ladspa effects.............no
magic support..............yes
png support................no
GOMP support...............yes
But after executing "make && make install", issuing
sox test.mp3 tmp1.mp3 reverse
returns
sox: Failed reading test.mp3: Do not understand format type: mp3
What am I missing here? Thanks.