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NMT: Rework on FSK process, no more requirement for special sample rates

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This commit is contained in:
Andreas Eversberg
2017-01-07 06:13:31 +01:00
parent 2d0bc92cde
commit d447be5e26
6 changed files with 112 additions and 85 deletions
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9
src/test/test_dms.c
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@@ -55,12 +55,14 @@ void dms_all_sent(nmt_t *nmt)
}
/* receive bits from DMS */
void fsk_render_frame(nmt_t *nmt, const char *frame, int length, int16_t *sample)
int fsk_render_frame(nmt_t *nmt, const char *frame, int length, int16_t *sample)
{
printf("(getting %d bits from DMS layer)\n", length);
memcpy(current_bits, frame, length);
current_bit_count = length;
return nmt->fsk_samples_per_bit * length;
}
nmt_t *alloc_nmt(void)
@@ -69,8 +71,9 @@ nmt_t *alloc_nmt(void)
nmt = calloc(sizeof(*nmt), 1);
dms_init_sender(nmt);
nmt->dms.frame_spl = calloc(1000000, 1);
nmt->samples_per_bit = 40;
nmt->fsk_samples_per_bit = 40;
nmt->dms.frame_size = nmt->fsk_samples_per_bit * 127 + 10;
nmt->dms.frame_spl = calloc(nmt->dms.frame_size, sizeof(nmt->dms.frame_spl[0]));
dms_reset(nmt);