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minimodem: --benchmarks: runs internal performance tests

This commit is contained in:
Kamal Mostafa 2012-08-13 15:51:04 -07:00
parent 23ecd6f5a7
commit bd08b9002c
2 changed files with 65 additions and 1 deletions
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3
src/minimodem.1.in
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@ -83,6 +83,9 @@ Generate 32-bit floating-point format audio samples, instead of the
default 16-bit signed integer format (applies to \-\-tx mode only;
\-\-rx mode always uses 32-bit floating-point).
.TP
.B \-\-benchmarks
Run and report internal performance tests (all other flags are ignored).
.TP
.B \-V, \-\-version
print program version
.SH {baudmode}

63
src/minimodem.c
View File

@ -40,6 +40,8 @@
#include "fsk.h"
#include "baudot.h"
char *program_name = "";
/*
* ASCII 8-bit data framebits decoder/encoder (passthrough)
@ -223,6 +225,55 @@ report_no_carrier( fsk_plan *fskp,
}
}
void
generate_test_tones( simpleaudio *sa_out, unsigned int duration_sec )
{
unsigned int sample_rate = simpleaudio_get_rate(sa_out);
unsigned int nframes = sample_rate / 10;
int i;
for ( i=0; i<(sample_rate/nframes*duration_sec); i++ ) {
simpleaudio_tone(sa_out, 1000, nframes/2);
simpleaudio_tone(sa_out, 1777, nframes/2);
}
}
static int
benchmarks()
{
fprintf(stdout, "minimodem %s benchmarks\n", VERSION);
int ret;
ret = system("sed -n '/^model name/{p;q}' /proc/cpuinfo");
ret = ret; // don't care, hush compiler.
fflush(stdout);
unsigned int sample_rate = 48000;
sa_backend_t backend = SA_BACKEND_BENCHMARK;
// backend = SA_BACKEND_SYSDEFAULT; // for test
simpleaudio *sa_out;
sa_out = simpleaudio_open_stream(backend, SA_STREAM_PLAYBACK,
SA_SAMPLE_FORMAT_S16, sample_rate, 1,
program_name, "generate-tones-S16-mono");
if ( ! sa_out )
return 0;
generate_test_tones(sa_out, 10);
simpleaudio_close(sa_out);
sa_out = simpleaudio_open_stream(backend, SA_STREAM_PLAYBACK,
SA_SAMPLE_FORMAT_FLOAT, sample_rate, 1,
program_name, "generate-tones-FLOAT-mono");
if ( ! sa_out )
return 0;
generate_test_tones(sa_out, 10);
simpleaudio_close(sa_out);
return 1;
}
void
version()
{
@ -258,6 +309,7 @@ usage()
" -V, --version\n"
" -A, --alsa\n"
" -F, --float-samples\n"
" --benchmarks\n"
" {baudmode}\n"
" 1200 Bell202 1200 bps --ascii\n"
" 300 Bell103 300 bps --ascii\n"
@ -280,7 +332,6 @@ main( int argc, char*argv[] )
unsigned int bfsk_n_data_bits = 0;
int autodetect_shift;
char *filename = NULL;
char *program_name;
float carrier_autodetect_threshold = 0.0;
float bfsk_confidence_threshold = 0.6;
@ -307,6 +358,11 @@ main( int argc, char*argv[] )
int c;
int option_index;
enum {
MINIMODEM_OPT_UNUSED=256, // placeholder
MINIMODEM_OPT_BENCHMARKS,
};
while ( 1 ) {
static struct option long_options[] = {
{ "version", 0, 0, 'V' },
@ -329,6 +385,7 @@ main( int argc, char*argv[] )
{ "alsa", 0, 0, 'A' },
{ "samplerate", 1, 0, 'R' },
{ "float-samples", 0, 0, 'F' },
{ "benchmarks", 0, 0, MINIMODEM_OPT_BENCHMARKS },
{ 0 }
};
c = getopt_long(argc, argv, "Vtrc:a85f:b:M:S:T:qAR:F",
@ -398,6 +455,10 @@ main( int argc, char*argv[] )
case 'F':
sample_format = SA_SAMPLE_FORMAT_FLOAT;
break;
case MINIMODEM_OPT_BENCHMARKS:
benchmarks();
exit(0);
break;
default:
usage();
}