[SoX-users] SoX v14.0.0 WAV file issues...

[John M. <kd...@ya...>]

I've been using SoX successfully for quite a number of years, but version 14
brings with it problems never seen before.

I'm running several different Slackware Linux machines -- some with the default
gcc 3 compiler, while others have gcc 4 that I've compiled and installed
myself.

On all machines, compilation fails with:

vorbis.c:105: error: 'ftello' undeclared (first use in this function)

The suggestion found on www.nabble.com regarding the change from:
 
                 (long (*)(void *))    ftello 
to: 
                 (long (*)(void *))    ftell 

cures the problem.

However, once compiled, SoX cannot read or play .wav files.  The program exits
with a "Could not find data chunk" error.

I tried commenting out the data chunk "if" check on or about line 816 in
src/wav.c.  This allowed SoX to read the file and display data size
information, but the program quickly exits after this without reading the file
any further.

So, the error trap appears to be working properly, but the "len" or the
"dwDataLength" variables might be incorrectly computed.

Compilation produces a number of disturbing warnings, such as:

filter.c:233: warning: format '%d' expects type 'int', but argument 2 has type
'
long int'

polyphas.c:268: warning: format '%p' expects type 'void *', but argument 2 has
t
ype 'float *'

avr.c:211: warning: passing argument 2 of 'sox_writew' with different width due
to prototype

It has been my experience that GCC warnings, other than messages about unused
variables, are indicators that the resulting executable may not function as
expected.

Perhaps the difficulty in handling .wav files is related to GCC's
interpretation of SoX's code.


John


Visit John on the Web at:

	http://kd2bd.ham.org/
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