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add a library of timeval manipulation functions, and change a large number of usses to use the new functions (bug #4504)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6146 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2005-07-15 23:00:47 +00:00
parent 60cd1fa57d
commit 22b0f5d306
39 changed files with 420 additions and 635 deletions
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75
rtp.c
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@@ -42,6 +42,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/utils.h"
#include "asterisk/cli.h"
#include "asterisk/unaligned.h"
#include "asterisk/utils.h"
#define MAX_TIMESTAMP_SKEW 640
@@ -144,12 +145,10 @@ void ast_rtp_setnat(struct ast_rtp *rtp, int nat)
static struct ast_frame *send_dtmf(struct ast_rtp *rtp)
{
struct timeval tv;
static struct ast_frame null_frame = { AST_FRAME_NULL, };
char iabuf[INET_ADDRSTRLEN];
gettimeofday(&tv, NULL);
if ((tv.tv_sec < rtp->dtmfmute.tv_sec) ||
((tv.tv_sec == rtp->dtmfmute.tv_sec) && (tv.tv_usec < rtp->dtmfmute.tv_usec))) {
if (ast_tvcmp(ast_tvnow(), rtp->dtmfmute) < 0) {
if (option_debug)
ast_log(LOG_DEBUG, "Ignore potential DTMF echo from '%s'\n", ast_inet_ntoa(iabuf, sizeof(iabuf), rtp->them.sin_addr));
rtp->resp = 0;
@@ -367,24 +366,13 @@ struct ast_frame *ast_rtcp_read(struct ast_rtp *rtp)
static void calc_rxstamp(struct timeval *tv, struct ast_rtp *rtp, unsigned int timestamp, int mark)
{
if ((!rtp->rxcore.tv_sec && !rtp->rxcore.tv_usec) || mark) {
gettimeofday(&rtp->rxcore, NULL);
rtp->rxcore.tv_sec -= timestamp / 8000;
rtp->rxcore.tv_usec -= (timestamp % 8000) * 125;
struct timeval ts = ast_samp2tv( timestamp, 8000);
if (ast_tvzero(rtp->rxcore) || mark) {
rtp->rxcore = ast_tvsub(ast_tvnow(), ts);
/* Round to 20ms for nice, pretty timestamps */
rtp->rxcore.tv_usec -= rtp->rxcore.tv_usec % 20000;
if (rtp->rxcore.tv_usec < 0) {
/* Adjust appropriately if necessary */
rtp->rxcore.tv_usec += 1000000;
rtp->rxcore.tv_sec -= 1;
}
}
tv->tv_sec = rtp->rxcore.tv_sec + timestamp / 8000;
tv->tv_usec = rtp->rxcore.tv_usec + (timestamp % 8000) * 125;
if (tv->tv_usec >= 1000000) {
tv->tv_usec -= 1000000;
tv->tv_sec += 1;
}
*tv = ast_tvadd(rtp->rxcore, ts);
}
struct ast_frame *ast_rtp_read(struct ast_rtp *rtp)
@@ -1033,28 +1021,19 @@ void ast_rtp_destroy(struct ast_rtp *rtp)
static unsigned int calc_txstamp(struct ast_rtp *rtp, struct timeval *delivery)
{
struct timeval now;
unsigned int ms;
if (!rtp->txcore.tv_sec && !rtp->txcore.tv_usec) {
gettimeofday(&rtp->txcore, NULL);
struct timeval t;
long ms;
if (ast_tvzero(rtp->txcore)) {
rtp->txcore = ast_tvnow();
/* Round to 20ms for nice, pretty timestamps */
rtp->txcore.tv_usec -= rtp->txcore.tv_usec % 20000;
}
if (delivery && (delivery->tv_sec || delivery->tv_usec)) {
/* Use previous txcore */
ms = (delivery->tv_sec - rtp->txcore.tv_sec) * 1000;
ms += (1000000 + delivery->tv_usec - rtp->txcore.tv_usec) / 1000 - 1000;
rtp->txcore.tv_sec = delivery->tv_sec;
rtp->txcore.tv_usec = delivery->tv_usec;
} else {
gettimeofday(&now, NULL);
ms = (now.tv_sec - rtp->txcore.tv_sec) * 1000;
ms += (1000000 + now.tv_usec - rtp->txcore.tv_usec) / 1000 - 1000;
/* Use what we just got for next time */
rtp->txcore.tv_sec = now.tv_sec;
rtp->txcore.tv_usec = now.tv_usec;
}
return ms;
/* Use previous txcore if available */
t = (delivery && !ast_tvzero(*delivery)) ? *delivery : ast_tvnow();
ms = ast_tvdiff_ms(t, rtp->txcore);
/* Use what we just got for next time */
rtp->txcore = t;
return (unsigned int) ms;
}
int ast_rtp_senddigit(struct ast_rtp *rtp, char digit)
@@ -1087,12 +1066,7 @@ int ast_rtp_senddigit(struct ast_rtp *rtp, char digit)
if (!rtp->them.sin_addr.s_addr)
return 0;
gettimeofday(&rtp->dtmfmute, NULL);
rtp->dtmfmute.tv_usec += (500 * 1000);
if (rtp->dtmfmute.tv_usec > 1000000) {
rtp->dtmfmute.tv_usec -= 1000000;
rtp->dtmfmute.tv_sec += 1;
}
rtp->dtmfmute = ast_tvadd(ast_tvnow(), ast_tv(0, 500000));
/* Get a pointer to the header */
rtpheader = (unsigned int *)data;
@@ -1159,13 +1133,8 @@ int ast_rtp_sendcng(struct ast_rtp *rtp, int level)
if (!rtp->them.sin_addr.s_addr)
return 0;
gettimeofday(&rtp->dtmfmute, NULL);
rtp->dtmfmute.tv_usec += (500 * 1000);
if (rtp->dtmfmute.tv_usec > 1000000) {
rtp->dtmfmute.tv_usec -= 1000000;
rtp->dtmfmute.tv_sec += 1;
}
rtp->dtmfmute = ast_tvadd(ast_tvnow(), ast_tv(0, 500000));
/* Get a pointer to the header */
rtpheader = (unsigned int *)data;
rtpheader[0] = htonl((2 << 30) | (1 << 23) | (payload << 16) | (rtp->seqno++));
@@ -1201,7 +1170,7 @@ static int ast_rtp_raw_write(struct ast_rtp *rtp, struct ast_frame *f, int codec
/* Re-calculate last TS */
rtp->lastts = rtp->lastts + ms * 8;
if (!f->delivery.tv_sec && !f->delivery.tv_usec) {
if (ast_tvzero(f->delivery)) {
/* If this isn't an absolute delivery time, Check if it is close to our prediction,
and if so, go with our prediction */
if (abs(rtp->lastts - pred) < MAX_TIMESTAMP_SKEW)
@@ -1218,7 +1187,7 @@ static int ast_rtp_raw_write(struct ast_rtp *rtp, struct ast_frame *f, int codec
/* Re-calculate last TS */
rtp->lastts = rtp->lastts + ms * 90;
/* If it's close to our prediction, go for it */
if (!f->delivery.tv_sec && !f->delivery.tv_usec) {
if (ast_tvzero(f->delivery)) {
if (abs(rtp->lastts - pred) < 7200) {
rtp->lastts = pred;
rtp->lastovidtimestamp += f->samples;