#ifdef __bfin__
static inline void lms_adapt_bg(struct oslec_state *ec, int clean, int shift)
{
- int i, j;
+ int i;
+ int j;
int offset1;
int offset2;
int factor;
{
int32_t echo_value;
int clean_bg;
- int tmp, tmp1;
+ int tmp;
+ int tmp1;
/*
* Input scaling was found be required to prevent problems when tx
int16_t oslec_hpf_tx(struct oslec_state *ec, int16_t tx)
{
- int tmp, tmp1;
+ int tmp;
+ int tmp1;
if (ec->adaption_mode & ECHO_CAN_USE_TX_HPF) {
tmp = tx << 15;
This module aims to provide G.168-2002 compliant echo cancellation, to remove
electrical echoes (e.g. from 2-4 wire hybrids) from voice calls.
-
How does it work?
The heart of the echo cancellor is FIR filter. This is adapted to match the
echo canceller.
*/
struct oslec_state {
- int16_t tx, rx;
+ int16_t tx;
+ int16_t rx;
int16_t clean;
int16_t clean_nlp;
int16_t shift;
/* Average levels and averaging filter states */
- int Ltxacc, Lrxacc, Lcleanacc, Lclean_bgacc;
- int Ltx, Lrx;
+ int Ltxacc;
+ int Lrxacc;
+ int Lcleanacc;
+ int Lclean_bgacc;
+ int Ltx;
+ int Lrx;
int Lclean;
int Lclean_bg;
- int Lbgn, Lbgn_acc, Lbgn_upper, Lbgn_upper_acc;
+ int Lbgn;
+ int Lbgn_acc;
+ int Lbgn_upper;
+ int Lbgn_upper_acc;
/* foreground and background filter states */
struct fir16_state_t fir_state;
int16_t *fir_taps16[2];
/* DC blocking filter states */
- int tx_1, tx_2, rx_1, rx_2;
+ int tx_1;
+ int tx_2;
+ int rx_1;
+ int rx_2;
/* optional High Pass Filter states */
- int32_t xvtx[5], yvtx[5];
- int32_t xvrx[5], yvrx[5];
+ int32_t xvtx[5];
+ int32_t yvtx[5];
+ int32_t xvrx[5];
+ int32_t yvrx[5];
/* Parameters for the optional Hoth noise generator */
int cng_level;