[SoX-users] a couple bug fixes for latest version of SoX

[Michael H. <mlh...@ya...>]

Hi,

I downloaded the latest CVS snapshot of SoX version 14.0.1 to fix 
some build issues with ffmpeg on Linux. (See discussion thread
http://thread.gmane.org/gmane.comp.audio.sox/1546.) 
I was able to run

  autoreconf -i
  configure --with-ffmpeg=yes

successfully, but the build was broken. Specifically, I got lots
of undefined symbols when it tried to build 
libsox_fmt_ffmpeg.la. For example, some build output:

/bin/sh ../libtool --silent --tag=CC  --silent --mode=link 
gcc -Wconversion -g -O2 -D_FORTIFY_SOURCE=2 -Wall -W 
-Wmissing-prototypes -Wstrict-prototypes -pedantic -lltdl -Wl,
-z,defs -o libsox_fmt_ffmpeg.la -rpath /usr/local/lib/sox
ffmpeg.lo libsox.la -lavformat -lavcodec -lavutil  -lm 
/usr/local/lib/libavformat.a(mov.o): In function `mov_read_cmov':
/home/mike/Projects/ctv/vendor/codec/ffmpeg/libavformat/mov.c:1190: 
undefined reference to `uncompress'
/usr/local/lib/libavformat.a(libogg.o): In function `ogg_write_trailer':
/home/mike/Projects/ctv/vendor/codec/ffmpeg/libavformat/libogg.c:143: 
undefined reference to `ogg_stream_flush'
/home/mike/Projects/ctv/vendor/codec/ffmpeg/libavformat/libogg.c:149: 
undefined reference to `ogg_stream_clear'
/usr/local/lib/libavformat.a(libogg.o): In function `ogg_write_packet':
/home/mike/Projects/ctv/vendor/codec/ffmpeg/libavformat/libogg.c:126: 
undefined reference to `ogg_stream_packetin'
/home/mike/Projects/ctv/vendor/codec/ffmpeg/libavformat/libogg.c:128: 
undefined reference to `ogg_stream_pageout'
/home/mike/Projects/ctv/vendor/codec/ffmpeg/libavformat/libogg.c:111: 
undefined reference to `ogg_stream_flush'
.
.
.

My ffmpeg build was configured to use all sorts of other 
codecs (e.g. ogg, vorbis, x264, etc.) and none of these were 
being included on the link line above. To fix the problem, 
I reconfigured sox as follows, adding one extra step
at the start:

  autoreconf -i
  export FFMPEG_LIBS="-lz -logg -lx264 -lfaac -lfaad -lmp3lame 
                      -lmp4v2 -lvorbis -lvorbisenc -lvorbisfile"
  configure --with-ffmpeg=yes
  make

That works! Please fix the configure/Makefiles, though, in Sox if 
you can, to pull in the necessary libs. I do not know if that 
is possible...

When I moved the latest package back to my Mac and tried these 
same steps, I got a compile error:

gcc -DHAVE_CONFIG_H -I.  -DLADSPA_PATH="\"/usr/local/lib/ladspa\""
-DPKGLIBDIR="\"/usr/local/lib/sox\""  -Wconversion  -g -O2 -D_FORTIFY_SOURCE=2 
-Wall -W -Wmissing-prototypes -Wstrict-prototypes -pedantic -MT sox.o -MD -MP 
-MF .deps/sox.Tpo -c -o sox.o sox.c
In file included from sox.c:25:
sox_i.h:107: error: ‘_FILE_OFFSET_BITS’ undeclared here (not in a function)

To fix, I commented out the assert statement in sox_i.h that is causing the
problem. If you could please propagate (a better fix) to the original source,
that would be great. 

Thanks!
Mike