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 different 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`/../objs/$BUILD/lib:$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_k=0
  36 last_size=$(wc -c < noisy-sine.wav)
  37
  38 echo "Original file size ${last_size} bytes."
  39
  40 for k in 0 1 2 3 4 5 6 7 8 ; do
  41         flac -${k} --silent noisy-sine.wav -o ${fname}
  42         size=$(wc -c < ${fname})
  43         echo "Compression level ${k}, file size ${size} bytes."
  44         if test ${last_size} -lt ${size} ; then
  45                 echo "Error : Compression ${last_k} size $last_size >= compression $k size $size."
  46                 exit 1
  47                 fi
  48         last_size=${size}
  49         last_k=${k}
  50         rm -f ${fname}
  51         done