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Some tidying of the V.17 modem. Brought the modem test programs up to date

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This commit is contained in:
Steve Underwood
2012-07-21 21:17:11 +08:00
parent e58b2e7d97
commit fd8c576c66
9 changed files with 399 additions and 153 deletions
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36
libs/spandsp/src/v27ter_tx.c
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@@ -59,9 +59,11 @@
#include "spandsp/private/v27ter_tx.h"
#if defined(SPANDSP_USE_FIXED_POINT)
#define FP_SCALE FP_Q_6_10
#include "v27ter_tx_4800_fixed_rrc.h"
#include "v27ter_tx_2400_fixed_rrc.h"
#else
#define FP_SCALE(x) (x)
#include "v27ter_tx_4800_floating_rrc.h"
#include "v27ter_tx_2400_floating_rrc.h"
#endif
@@ -149,32 +151,22 @@ static complexf_t getbaud(v27ter_tx_state_t *s)
0, 2, 6, 4
};
#if defined(SPANDSP_USE_FIXED_POINT)
static const complexi16_t constellation[8] =
{
{FP_Q_6_10( 1.414f), FP_Q_6_10( 0.0f)}, /* 0deg */
{FP_Q_6_10( 1.0f), FP_Q_6_10( 1.0f)}, /* 45deg */
{FP_Q_6_10( 0.0f), FP_Q_6_10( 1.414f)}, /* 90deg */
{FP_Q_6_10(-1.0f), FP_Q_6_10( 1.0f)}, /* 135deg */
{FP_Q_6_10(-1.414f), FP_Q_6_10( 0.0f)}, /* 180deg */
{FP_Q_6_10(-1.0f), FP_Q_6_10(-1.0f)}, /* 225deg */
{FP_Q_6_10( 0.0f), FP_Q_6_10(-1.414f)}, /* 270deg */
{FP_Q_6_10( 1.0f), FP_Q_6_10(-1.0f)} /* 315deg */
};
static const complexi16_t zero = {0, 0};
static const complexi16_t constellation[8] =
#else
static const complexf_t constellation[8] =
{
{ 1.414f, 0.0f}, /* 0deg */
{ 1.0f, 1.0f}, /* 45deg */
{ 0.0f, 1.414f}, /* 90deg */
{-1.0f, 1.0f}, /* 135deg */
{-1.414f, 0.0f}, /* 180deg */
{-1.0f, -1.0f}, /* 225deg */
{ 0.0f, -1.414f}, /* 270deg */
{ 1.0f, -1.0f} /* 315deg */
};
static const complexf_t zero = {0.0f, 0.0f};
static const complexf_t constellation[8] =
#endif
{
{FP_SCALE( 1.414f), FP_SCALE( 0.0f)}, /* 0deg */
{FP_SCALE( 1.0f), FP_SCALE( 1.0f)}, /* 45deg */
{FP_SCALE( 0.0f), FP_SCALE( 1.414f)}, /* 90deg */
{FP_SCALE(-1.0f), FP_SCALE( 1.0f)}, /* 135deg */
{FP_SCALE(-1.414f), FP_SCALE( 0.0f)}, /* 180deg */
{FP_SCALE(-1.0f), FP_SCALE(-1.0f)}, /* 225deg */
{FP_SCALE( 0.0f), FP_SCALE(-1.414f)}, /* 270deg */
{FP_SCALE( 1.0f), FP_SCALE(-1.0f)} /* 315deg */
};
int bits;
if (s->in_training)