Author: anthm Date: Wed Dec 3 18:38:12 2008 New Revision: 10584 Log: reduce cpu requirement for generated comfort noise Modified: freeswitch/trunk/src/switch_resample.c Modified: freeswitch/trunk/src/switch_resample.c ============================================================================== --- freeswitch/trunk/src/switch_resample.c (original) +++ freeswitch/trunk/src/switch_resample.c Wed Dec 3 18:38:12 2008 @@ -203,15 +203,17 @@ SWITCH_DECLARE(void) switch_generate_sln_silence(int16_t *data, uint32_t samples, uint32_t divisor) { - int16_t rnd, x; + int16_t rnd = 0, rnd2, x; uint32_t i; int sum_rnd = 0; assert(divisor); + rnd2 = (int16_t) (intptr_t) &data + switch_timestamp(NULL); + for (i = 0; i < samples; i++, sum_rnd = 0) { - for (x = 0; x < 7; x++) { - rnd = (int16_t) (rand() * sizeof(int16_t)); + for (x = 0; x < 10; x++) { + rnd += ((x + i) * rnd2); sum_rnd += rnd; } switch_normalize_to_16bit(sum_rnd);