static void coeffs_i(IplImage *img, int bases, int total_b, int *data)
{
CvSize s = cvGetSize(img);
int w = s.width, h = s.height;
if (w != img->widthStep) {
fprintf(stderr, "image not aligned uh oh\n");
exit(1);
}
int *res = gck_calc_2d((uint8_t*)img->imageData, w, h, 8, bases);
interleave_data(res, w, h, 8, bases, data, total_b);
free(res);
}
static void
callback_test (int converter, int channel_count, double target_snr)
{ TEST_CB_DATA test_callback_data ;
SRC_STATE *src_state = NULL ;
double freq, snr, src_ratio ;
int ch, error, frames, read_total, read_count ;
printf ("\t%-22s (%d channel%c) ............. ", "callback_test", channel_count, channel_count > 1 ? 's' : ' ') ;
fflush (stdout) ;
memset (input_serial, 0, sizeof (input_serial)) ;
memset (input_interleaved, 0, sizeof (input_interleaved)) ;
memset (output_interleaved, 0, sizeof (output_interleaved)) ;
memset (output_serial, 0, sizeof (output_serial)) ;
memset (&test_callback_data, 0, sizeof (test_callback_data)) ;
frames = MIN (ARRAY_LEN (input_serial) / channel_count, 1 << 16) ;
/* Calculate channel_count separate windowed sine waves. */
for (ch = 0 ; ch < channel_count ; ch++)
{ freq = (200.0 + 33.333333333 * ch) / 44100.0 ;
gen_windowed_sines (1, &freq, 1.0, input_serial + ch * frames, frames) ;
} ;
/* Interleave the data in preparation for SRC. */
interleave_data (input_serial, input_interleaved, frames, channel_count) ;
/* Perform sample rate conversion. */
src_ratio = 0.95 ;
test_callback_data.channels = channel_count ;
test_callback_data.total_frames = frames ;
test_callback_data.current_frame = 0 ;
test_callback_data.data = input_interleaved ;
if ((src_state = src_callback_new (test_callback_func, converter, channel_count, &error, &test_callback_data)) == NULL)
{ printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ;
exit (1) ;
} ;
read_total = 0 ;
while (read_total < frames)
{ read_count = src_callback_read (src_state, src_ratio, frames - read_total, output_interleaved + read_total * channel_count) ;
if (read_count <= 0)
break ;
read_total += read_count ;
} ;
if ((error = src_error (src_state)) != 0)
{ printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ;
exit (1) ;
} ;
src_state = src_delete (src_state) ;
if (fabs (read_total - src_ratio * frames) > 2)
{ printf ("\n\nLine %d : bad output data length %d should be %d.\n", __LINE__,
read_total, (int) floor (src_ratio * frames)) ;
printf ("\tsrc_ratio : %.4f\n", src_ratio) ;
printf ("\tinput_len : %d\n", frames) ;
printf ("\toutput_len : %d\n\n", read_total) ;
exit (1) ;
} ;
/* De-interleave data so SNR can be calculated for each channel. */
deinterleave_data (output_interleaved, output_serial, frames, channel_count) ;
for (ch = 0 ; ch < channel_count ; ch++)
{ snr = calculate_snr (output_serial + ch * frames, frames, 1) ;
if (snr < target_snr)
{ printf ("\n\nLine %d: channel %d snr %f should be %f\n", __LINE__, ch, snr, target_snr) ;
save_oct_float ("output.dat", input_serial, channel_count * frames, output_serial, channel_count * frames) ;
exit (1) ;
} ;
} ;
puts ("ok") ;
return ;
} /* callback_test */
static void
simple_test (int converter, int channel_count, double target_snr)
{ SRC_DATA src_data ;
double freq, snr ;
int ch, error, frames ;
printf ("\t%-22s (%d channel%c) ............. ", "simple_test", channel_count, channel_count > 1 ? 's' : ' ') ;
fflush (stdout) ;
memset (input_serial, 0, sizeof (input_serial)) ;
memset (input_interleaved, 0, sizeof (input_interleaved)) ;
memset (output_interleaved, 0, sizeof (output_interleaved)) ;
memset (output_serial, 0, sizeof (output_serial)) ;
frames = MIN (ARRAY_LEN (input_serial) / channel_count, 1 << 16) ;
/* Calculate channel_count separate windowed sine waves. */
for (ch = 0 ; ch < channel_count ; ch++)
{ freq = (200.0 + 33.333333333 * ch) / 44100.0 ;
gen_windowed_sines (1, &freq, 1.0, input_serial + ch * frames, frames) ;
} ;
/* Interleave the data in preparation for SRC. */
interleave_data (input_serial, input_interleaved, frames, channel_count) ;
/* Choose a converstion ratio <= 1.0. */
src_data.src_ratio = 0.95 ;
src_data.data_in = input_interleaved ;
src_data.input_frames = frames ;
src_data.data_out = output_interleaved ;
src_data.output_frames = frames ;
if ((error = src_simple (&src_data, converter, channel_count)))
{ printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ;
exit (1) ;
} ;
if (fabs (src_data.output_frames_gen - src_data.src_ratio * src_data.input_frames) > 2)
{ printf ("\n\nLine %d : bad output data length %ld should be %d.\n", __LINE__,
src_data.output_frames_gen, (int) floor (src_data.src_ratio * src_data.input_frames)) ;
printf ("\tsrc_ratio : %.4f\n", src_data.src_ratio) ;
printf ("\tinput_len : %ld\n", src_data.input_frames) ;
printf ("\toutput_len : %ld\n\n", src_data.output_frames_gen) ;
exit (1) ;
} ;
/* De-interleave data so SNR can be calculated for each channel. */
deinterleave_data (output_interleaved, output_serial, frames, channel_count) ;
for (ch = 0 ; ch < channel_count ; ch++)
{ snr = calculate_snr (output_serial + ch * frames, frames, 1) ;
if (snr < target_snr)
{ printf ("\n\nLine %d: channel %d snr %f should be %f\n", __LINE__, ch, snr, target_snr) ;
save_oct_float ("output.dat", input_serial, channel_count * frames, output_serial, channel_count * frames) ;
exit (1) ;
} ;
} ;
puts ("ok") ;
return ;
} /* simple_test */
static void
process_test (int converter, int channel_count, double target_snr)
{ SRC_STATE *src_state ;
SRC_DATA src_data ;
double freq, snr ;
int ch, error, frames, current_in, current_out ;
printf ("\t%-22s (%d channel%c) ............. ", "process_test", channel_count, channel_count > 1 ? 's' : ' ') ;
fflush (stdout) ;
memset (input_serial, 0, sizeof (input_serial)) ;
memset (input_interleaved, 0, sizeof (input_interleaved)) ;
memset (output_interleaved, 0, sizeof (output_interleaved)) ;
memset (output_serial, 0, sizeof (output_serial)) ;
frames = MIN (ARRAY_LEN (input_serial) / channel_count, 1 << 16) ;
/* Calculate channel_count separate windowed sine waves. */
for (ch = 0 ; ch < channel_count ; ch++)
{ freq = (200.0 + 33.333333333 * ch) / 44100.0 ;
gen_windowed_sines (1, &freq, 1.0, input_serial + ch * frames, frames) ;
} ;
/* Interleave the data in preparation for SRC. */
interleave_data (input_serial, input_interleaved, frames, channel_count) ;
/* Perform sample rate conversion. */
if ((src_state = src_new (converter, channel_count, &error)) == NULL)
{ printf ("\n\nLine %d : src_new() failed : %s\n\n", __LINE__, src_strerror (error)) ;
exit (1) ;
} ;
src_data.end_of_input = 0 ; /* Set this later. */
/* Choose a converstion ratio < 1.0. */
src_data.src_ratio = 0.95 ;
src_data.data_in = input_interleaved ;
src_data.data_out = output_interleaved ;
current_in = current_out = 0 ;
while (1)
{ src_data.input_frames = MAX (MIN (BLOCK_LEN, frames - current_in), 0) ;
src_data.output_frames = MAX (MIN (BLOCK_LEN, frames - current_out), 0) ;
if ((error = src_process (src_state, &src_data)))
{ printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ;
exit (1) ;
} ;
if (src_data.end_of_input && src_data.output_frames_gen == 0)
break ;
current_in += src_data.input_frames_used ;
current_out += src_data.output_frames_gen ;
src_data.data_in += src_data.input_frames_used * channel_count ;
src_data.data_out += src_data.output_frames_gen * channel_count ;
src_data.end_of_input = (current_in >= frames) ? 1 : 0 ;
} ;
src_state = src_delete (src_state) ;
if (fabs (current_out - src_data.src_ratio * current_in) > 2)
{ printf ("\n\nLine %d : bad output data length %d should be %d.\n", __LINE__,
current_out, (int) floor (src_data.src_ratio * current_in)) ;
printf ("\tsrc_ratio : %.4f\n", src_data.src_ratio) ;
printf ("\tinput_len : %d\n", frames) ;
printf ("\toutput_len : %d\n\n", current_out) ;
exit (1) ;
} ;
/* De-interleave data so SNR can be calculated for each channel. */
deinterleave_data (output_interleaved, output_serial, frames, channel_count) ;
for (ch = 0 ; ch < channel_count ; ch++)
{ snr = calculate_snr (output_serial + ch * frames, frames, 1) ;
if (snr < target_snr)
{ printf ("\n\nLine %d: channel %d snr %f should be %f\n", __LINE__, ch, snr, target_snr) ;
save_oct_float ("output.dat", input_serial, channel_count * frames, output_serial, channel_count * frames) ;
exit (1) ;
} ;
} ;
puts ("ok") ;
return ;
} /* process_test */
