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/*---------------------------------------------------------------------------*\
FILE........: tfreedv_800XA_rawdata.c
AUTHOR......: Jeroen Vreeken
DATE CREATED: 24 May 2020
FreeDV 800XA rawdata test.
\*---------------------------------------------------------------------------*/
/*
Copyright (C) 2020 Jeroen Vreeken <jeroen@vreeken.net>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include "freedv_api.h"
#include "assert.h"
int main(int argc, char **argv)
{
struct freedv *f;
int i;
printf("freedv_api tests for mode 800XA\n");
printf("freedv_open(FREEDV_MODE_800XA) ");
f = freedv_open(FREEDV_MODE_800XA);
assert(f != NULL);
printf("Passed\n");
printf("freedv_get_mode() ");
int mode = freedv_get_mode(f);
assert(mode == FREEDV_MODE_800XA);
printf("Passed\n");
printf("freedv_get_n_max_modem_samples() ");
int max_samples = freedv_get_n_max_modem_samples(f);
assert(max_samples == 660);
printf("%d Passed\n", max_samples);
printf("freedv_get_n_nom_modem_samples() ");
int nom_samples = freedv_get_n_nom_modem_samples(f);
assert(nom_samples == 640);
printf("%d Passed\n", nom_samples);
printf("freedv_get_n_speech_samples() ");
int speech_samples = freedv_get_n_speech_samples(f);
assert(speech_samples == 640);
printf("%d Passed\n", speech_samples);
printf("freedv_get_n_bits_per_codec_frame() ");
int codec_bits = freedv_get_bits_per_codec_frame(f);
assert(codec_bits == 28);
printf("%d Passed\n", codec_bits);
printf("freedv_get_n_bits_per_modem_frame() ");
int frame_bits = freedv_get_bits_per_modem_frame(f);
assert(frame_bits == 56);
printf("%d Passed\n", frame_bits);
/* Note: A codec frame is only 3.5 bytes!
so the fourth and eight bytes will be half empty!
*/
unsigned char payload[8] = { 0x12, 0x34, 0x56, 0x70, 0x89, 0xab, 0xcd, 0xe0 };
unsigned char payload_tx[7] = { 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde };
printf("freedv_codec_frames_from_rawdata() ");
unsigned char codec_frames[8] = { 0 };
freedv_codec_frames_from_rawdata(f, codec_frames, payload_tx);
int fails = 0;
for (i = 0; i < 8; i++) {
if (codec_frames[i] != payload[i]) {
printf("byte %d: 0x%02x does not match expected 0x%02x\n", i, codec_frames[i], payload[i]);
fails++;
}
}
if (fails)
goto fail;
printf("Passed\n");
printf("freedv_rawdata_from_codec_frames() ");
unsigned char rawdata[7] = { 0 };
freedv_rawdata_from_codec_frames(f, rawdata, payload);
fails = 0;
for (i = 0; i < 7; i++) {
if (rawdata[i] != payload_tx[i]) {
printf("byte %d: 0x%02x does not match expected 0x%02x\n", i, rawdata[i], payload_tx[i]);
fails++;
}
}
if (fails)
goto fail;
printf("Passed\n");
printf("freedv_rawdatatx()/freedv_rawdatarx() ");
int frames = 0;
fails = 0;
{
short mod[nom_samples * 10];
for (i = 0; i < 10; i ++) {
freedv_rawdatatx(f, mod + i * nom_samples, payload_tx);
}
int nin = 0;
for (i = 0; i < nom_samples * 9; i += nin) {
nin = freedv_nin(f);
unsigned char payload_rx[8] = {0};
int r = freedv_rawdatarx(f, payload_rx, mod + i);
if (r == 7) {
int b;
for (b = 0; b < 7; b++) {
if (payload_tx[b] != payload_rx[b]) {
printf("Received codec bits 0x%02x do not match expected 0x%02x\n", payload_rx[b], payload_tx[b]);
fails++;
}
}
frames++;
}
}
}
if (!frames) {
printf("Did not decode any frames successfully\n");
goto fail;
}
if (fails)
goto fail;
printf("Passed\n");
printf("Tests passed\n");
return 0;
fail:
printf("Test failed\n");
return 1;
}
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