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-rw-r--r--unittest/ofdm_stack.c229
1 files changed, 0 insertions, 229 deletions
diff --git a/unittest/ofdm_stack.c b/unittest/ofdm_stack.c
deleted file mode 100644
index aef6f42..0000000
--- a/unittest/ofdm_stack.c
+++ /dev/null
@@ -1,229 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <complex.h>
-#include <unistd.h>
-#include <assert.h>
-
-#include "comp.h"
-#include "ofdm_internal.h"
-#include "codec2_ofdm.h"
-#include "test_bits_ofdm.h" /* payload_data_bits */
-#include "mpdecode_core.h"
-
-#define MAX_ERRORS 32
-
-static int ofdm_bitsperframe;
-static int ofdm_rowsperframe;
-static int ofdm_nuwbits;
-static int ofdm_ntxtbits;
-static int ofdm_rx_offset;
-static int ofdm_data_bitsperframe;
-static int ofdm_samplesperframe;
-static int ofdm_max_samplesperframe;
-static int ofdm_rxbuf;
-static int ofdm_m;
-static int ofdm_ncp;
-
-// Forwards
-void run_modem(struct OFDM *ofdm, int tx_bits[], int rx_bits[], COMP tx_rx[]);
-void dummy_code();
-
-/////////////////////////////////////////////////////////////
-/// MAIN()
-int main(int argc, char *argv[]) {
- // Options
- int f, i, opt;
- int dummy = 0; // flag to use dummy code
- int frames = 1; // how many frames
- int print = 0; // flag to print all bits
- struct OFDM *ofdm;
- struct OFDM_CONFIG *ofdm_config;
-
- ofdm = ofdm_create(NULL);
- assert(ofdm != NULL);
-
- /* Get a copy of the actual modem config */
-
- ofdm_config = ofdm_get_config_param(ofdm);
-
- ofdm_m = (int) (ofdm_config->fs / ofdm_config->rs);
- ofdm_ncp = (int) (ofdm_config->tcp * ofdm_config->fs);
- ofdm_bitsperframe = ofdm_get_bits_per_frame(ofdm);
- ofdm_rowsperframe = ofdm_bitsperframe / (ofdm_config->nc * ofdm_config->bps);
- ofdm_samplesperframe = ofdm_get_samples_per_frame(ofdm);
- ofdm_max_samplesperframe = ofdm_get_max_samples_per_frame(ofdm);
- ofdm_rxbuf = 3 * ofdm_samplesperframe + 3 * (ofdm_m + ofdm_ncp);
- ofdm_nuwbits = (ofdm_config->ns - 1) * ofdm_config->bps - ofdm_config->txtbits;
- ofdm_ntxtbits = ofdm_config->txtbits;
- ofdm_rx_offset = (ofdm_nuwbits + ofdm_ntxtbits);
- ofdm_data_bitsperframe = (ofdm_bitsperframe - ofdm_rx_offset);
-
- int tx_bits[ofdm_data_bitsperframe];
- int rx_bits[ofdm_data_bitsperframe];
- COMP tx_rx[ofdm_samplesperframe];
-
- while ((opt = getopt(argc, argv, "df:p")) != -1) {
- switch (opt) {
- case 'd':
- dummy = 1;
- break;
- case 'f':
- frames = atoi(optarg);
- break;
- case 'p':
- print = 1;
- break;
- default:
- fprintf(stderr, "Usage: %s [-e] [-f <frames>] [-p]\n", argv[0]);
- }
- }
-
- for (f = 0; f < frames; f++) {
- ////////
- // Prep inputs
-
- for(i=0; i<ofdm_data_bitsperframe; i++) {
- tx_bits[i] = payload_data_bits[(i % (sizeof(payload_data_bits)/sizeof(payload_data_bits[0])))];
- }
-
- ////////
- // Modem (or dummy)
-
- if (dummy) {
- dummy_code(tx_bits, rx_bits);
- } else {
- run_modem(ofdm, tx_bits, rx_bits, tx_rx);
- }
-
- ////////
- // Compare results (or print)
- int errors = 0;
-
- if (print) {
- for(i=0; i<ofdm_data_bitsperframe; i++) {
- fprintf(stderr, "bit %3d: tx = %1d, rx = %1d",
- i, tx_bits[i], rx_bits[i + ofdm_rx_offset]);
-
- if (tx_bits[i] != rx_bits[i + ofdm_rx_offset]) {
- fprintf(stderr, " Error");
- errors ++;
- }
-
- fprintf(stderr, "\n");
- }
- } else {
- for(i=0; i<ofdm_data_bitsperframe; i++) {
- if (tx_bits[i] != rx_bits[i + ofdm_rx_offset]) {
- if (errors < MAX_ERRORS) {
- fprintf(stderr, "Error in bit %3d: tx = %1d, rx = %1d\n",
- i, tx_bits[i], rx_bits[i + ofdm_rx_offset]);
- }
-
- errors++;
- }
- }
- }
-
- fprintf(stderr, "%d Errors\n", errors);
-
- } // for (f<frames
-
- ofdm_destroy(ofdm);
-
-} // end main()
-
-
-//////////////////////////////////
-void run_modem(struct OFDM *ofdm, int tx_bits[], int rx_bits[], COMP tx_rx[]) {
- int mod_bits[ofdm_samplesperframe];
- int i, j;
-
- ///////////
- // Mod
- ///////////
-
- for(i=0; i<ofdm_nuwbits; i++) {
- mod_bits[i] = ofdm->tx_uw[i];
- }
-
- for(i=ofdm_nuwbits; i<ofdm_nuwbits+ofdm_ntxtbits; i++) {
- mod_bits[i] = 0;
- }
-
- for(j=0, i=ofdm_nuwbits+ofdm_ntxtbits; j<ofdm_data_bitsperframe; i++,j++) {
- mod_bits[i] = tx_bits[j];
- }
-
- for(j=0; j<ofdm_data_bitsperframe; i++,j++) {
- mod_bits[i] = tx_bits[j];
- }
-
- ofdm_mod(ofdm, tx_rx, mod_bits);
-
- ///////////
- // DeMod
- ///////////
-
- int Nsam = ofdm_samplesperframe;
- int prx = 0;
- int nin = ofdm_samplesperframe + 2 * (ofdm_m + ofdm_ncp);
-
- int lnew;
- COMP rxbuf_in[ofdm_max_samplesperframe];
-
- for (i=0; i<ofdm_samplesperframe ; i++,prx++) {
- ofdm->rxbuf[ofdm_rxbuf-nin+i] = tx_rx[prx].real + tx_rx[prx].imag * I;
- }
-
- for (i=ofdm_samplesperframe ; i<nin; i++) {
- ofdm->rxbuf[ofdm_rxbuf-nin+i] = 0.0 + 0.0 * I;
- }
-
- /* disable estimators for initial testing */
- ofdm_set_verbose(ofdm, false);
- ofdm_set_timing_enable(ofdm, true);
- ofdm_set_foff_est_enable(ofdm, true);
- ofdm_set_phase_est_enable(ofdm, true);
-
- ofdm->mean_amp = 1.0;
-
- nin = ofdm_get_nin(ofdm);
-
- /* Insert samples at end of buffer, set to zero if no samples
- available to disable phase estimation on future pilots on
- last frame of simulation. */
-
- if ((Nsam-prx) < nin) {
- lnew = Nsam-prx;
- } else {
- lnew = nin;
- }
- for(i=0; i<nin; i++) {
- rxbuf_in[i].real = 0.0;
- rxbuf_in[i].imag = 0.0;
- }
-
- if (lnew) {
- for(i=0; i<lnew; i++, prx++) {
- rxbuf_in[i] = tx_rx[prx];
- }
- }
-
- ofdm_demod(ofdm, rx_bits, rxbuf_in);
-
-
-} // end run_modem()
-
-
-//////////////////////////////////
-void dummy_code(int tx_bits[], int rx_bits[]) {
- int i;
-
- for(i=0; i<ofdm_data_bitsperframe; i++) {
- rx_bits[i] = tx_bits[i];
- }
-
-} // end dummy_code()
-
-/* vi:set ts=4 sts=4 et: */
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