Merge pull request #196 from weinholt/ignore-length

Pass --ignore-length to SoX to support piped WAV data

unixinput.c

@@ -499,6 +499,7 @@ static void input_file(unsigned int sample_rate, unsigned int overlap,
  perror("dup2");
  close(pipedes[1]); /* close writing pipe end */
  execlp("sox", "sox", repeatable_sox?"-R":"-V2", mute_sox?"-V1":"-V2",
+ "--ignore-length",
  "-t", type, fname,
  "-t", "raw", "-esigned-integer", "-b16", "-r", srate, "-", "remix", "1",
  NULL);