test/test_compression.sh

   1 #!/bin/sh
   2
   3 #  FLAC - Free Lossless Audio Codec
   4 #  Copyright (C) 2012  Xiph.Org Foundation
   5 #
   6 #  This file is part the FLAC project.  FLAC is comprised of several
   7 #  components distributed under difference licenses.  The codec libraries
   8 #  are distributed under Xiph.Org's BSD-like license (see the file
   9 #  COPYING.Xiph in this distribution).  All other programs, libraries, and
  10 #  plugins are distributed under the GPL (see COPYING.GPL).  The documentation
  11 #  is distributed under the Gnu FDL (see COPYING.FDL).  Each file in the
  12 #  FLAC distribution contains at the top the terms under which it may be
  13 #  distributed.
  14 #
  15 #  Since this particular file is relevant to all components of FLAC,
  16 #  it may be distributed under the Xiph.Org license, which is the least
  17 #  restrictive of those mentioned above.  See the file COPYING.Xiph in this
  18 #  distribution.
  19
  20 LD_LIBRARY_PATH=`pwd`/../src/libFLAC/.libs:$LD_LIBRARY_PATH
  21 LD_LIBRARY_PATH=`pwd`/../src/share/grabbag/.libs:$LD_LIBRARY_PATH
  22 LD_LIBRARY_PATH=`pwd`/../src/share/getopt/.libs:$LD_LIBRARY_PATH
  23 LD_LIBRARY_PATH=`pwd`/../src/share/replaygain_analysis/.libs:$LD_LIBRARY_PATH
  24 LD_LIBRARY_PATH=`pwd`/../src/share/replaygain_synthesis/.libs:$LD_LIBRARY_PATH
  25 LD_LIBRARY_PATH=`pwd`/../src/share/utf8/.libs:$LD_LIBRARY_PATH
  26 LD_LIBRARY_PATH=`pwd`/../obj/$BUILD/lib:$LD_LIBRARY_PATH
  27 export LD_LIBRARY_PATH
  28 PATH=`pwd`/../src/flac:$PATH
  29
  30 echo "Using FLAC binary :" `which flac`
  31
  32 date=`date "+%Y%m%dT%H%M%S"`
  33 fname="comp${date}.flac"
  34
  35 last_size=0
  36 last_k=0
  37 for k in `seq 1 8` ; do
  38         flac -${k} --silent noisy-sine.wav -o ${fname}
  39         size=`stat --format="%s" ${fname}`
  40         echo "Compression level ${k}, file size ${size} bytes."
  41         if test $k -gt 1 ; then
  42                 if test $last_size -lt $size ; then
  43                         echo "Error : Compression $last_k size $last_size >= compression $k size $size."
  44                         exit 1
  45                         fi
  46                 fi
  47         last_size=$size
  48         last_k=$k
  49         rm -f $fname
  50         done