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Annotation of Examples/SoundAndMusic/SoundLibrary/compresstest.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * compresstest - compress or decompress a soundfile.  If the input file is in
                      3:  * a linear format, it is compressed.  If it is in a compressed format, it is
                      4:  * decompressed.  Compression may be bit-faithful (decompression
                      5:  * reproduces the sound exactly) or non-bit-faithful.  An integer controlling
                      6:  * the compression amount can also be specified.  See the documentation in
                      7:  * /usr/include/sound/convertsound.h for more information.
                      8:  */
                      9: #import <sound/sound.h>
                     10: #import <stdio.h>
                     11: 
                     12: check_error(int err)
                     13: {
                     14:     if (err) {
                     15:        printf("Error : %d, %s\n",err,SNDSoundError(err));
                     16:        exit(1);
                     17:     }
                     18:     return err;
                     19: }
                     20: 
                     21: main (int argc, char *argv[])
                     22: {
                     23:     int err;
                     24:     SNDSoundStruct *s1, *s2;
                     25:     char *infile, *outfile;
                     26:     int bitFaithful = 1;
                     27:     int dropBits = 4;
                     28: 
                     29:     if (argc != 3) {
                     30:        printf("usage : compresstest file1 file2\n");
                     31:        exit(1);
                     32:     }
                     33:     
                     34:     err = SNDReadSoundfile(argv[1] ,&s1);
                     35:     check_error(err);
                     36:     err = SNDCompressSound(s1, &s2, bitFaithful, dropBits);
                     37:     check_error(err);
                     38:     err = SNDWriteSoundfile(argv[2],s2);
                     39:     check_error(err);
                     40:     exit(0);
                     41: }

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