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tests/vorbis_test.c : Add trivial test of SFC_SET_ENCODING_QUALITY functionality.

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This commit is contained in:
Erik de Castro Lopo 2007-11-03 21:48:56 +11:00
parent 9fe963cd95
commit d813b2e344
1 changed files with 60 additions and 0 deletions
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60
tests/vorbis_test.c
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@ -32,6 +32,9 @@
#include "dft_cmp.h" #include "dft_cmp.h"
#define SAMPLE_RATE 16000 #define SAMPLE_RATE 16000
#define DATA_LENGTH (SAMPLE_RATE / 8)
static float data_out [DATA_LENGTH] ;
static inline float static inline float
max_float (float a, float b) max_float (float a, float b)
@ -103,11 +106,68 @@ vorbis_test (void)
unlink (filename) ; unlink (filename) ;
} /* vorbis_test */ } /* vorbis_test */
static void
vorbis_quality_test (void)
{ /*
** Encode two files, one at quality 0.3 and one at quality 0.5 and then
** make sure that the quality 0.3 files is the smaller of the two.
*/
const char * q3_fname = "q3_vorbis.oga" ;
const char * q5_fname = "q5_vorbis.oga" ;
SNDFILE *q3_file, *q5_file ;
SF_INFO sfinfo ;
int q3_size, q5_size ;
double quality ;
int k ;
print_test_name (__func__, "q[35]_vorbis.oga") ;
memset (&sfinfo, 0, sizeof (sfinfo)) ;
/* Set up output file type. */
sfinfo.format = SF_FORMAT_OGG | SF_FORMAT_VORBIS ;
sfinfo.channels = 1 ;
sfinfo.samplerate = SAMPLE_RATE ;
/* Write the output file. */
q3_file = test_open_file_or_die (q3_fname, SFM_WRITE, &sfinfo, SF_FALSE, __LINE__) ;
q5_file = test_open_file_or_die (q5_fname, SFM_WRITE, &sfinfo, SF_FALSE, __LINE__) ;
quality = 0.3 ;
sf_command (q3_file, SFC_SET_ENCODING_QUALITY, &quality, sizeof (quality)) ;
quality = 0.5 ;
sf_command (q5_file, SFC_SET_ENCODING_QUALITY, &quality, sizeof (quality)) ;
for (k = 0 ; k < 5 ; k++)
{ gen_lowpass_noise_float (data_out, ARRAY_LEN (data_out)) ;
test_write_float_or_die (q3_file, 0, data_out, ARRAY_LEN (data_out), __LINE__) ;
test_write_float_or_die (q5_file, 0, data_out, ARRAY_LEN (data_out), __LINE__) ;
} ;
sf_close (q3_file) ;
sf_close (q5_file) ;
q3_size = file_length (q3_fname) ;
q5_size = file_length (q5_fname) ;
if (q3_size >= q5_size)
{ printf ("\n\nLine %d : q3 size (%d) >= q5 size (%d)\n\n", __LINE__, q3_size, q5_size) ;
exit (1) ;
} ;
puts ("ok") ;
unlink (q3_fname) ;
unlink (q5_fname) ;
} /* vorbis_quality_test */
int int
main (void) main (void)
{ {
vorbis_test () ; vorbis_test () ;
vorbis_quality_test () ;
return 0 ; return 0 ;
} /* main */ } /* main */