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Make the ntp_time function available to other parts of libavformat, as ff_ntp_time

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Originally committed as revision 22438 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Martin Storsjö 2010-03-10 22:21:39 +00:00
parent 18c31f6ff8
commit 594a9aebbe
3 changed files with 15 additions and 10 deletions
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3
libavformat/internal.h
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@ -37,4 +37,7 @@ void ff_interleave_add_packet(AVFormatContext *s, AVPacket *pkt,
void av_read_frame_flush(AVFormatContext *s);
/** Gets the current time since NTP epoch in microseconds. */
uint64_t ff_ntp_time(void);
#endif /* AVFORMAT_INTERNAL_H */

14
libavformat/rtpenc.c
View file

@ -21,6 +21,7 @@
#include "avformat.h"
#include "mpegts.h"
#include "internal.h"
#include <unistd.h>
@ -29,13 +30,6 @@
//#define DEBUG
#define RTCP_SR_SIZE 28
#define NTP_OFFSET 2208988800ULL
#define NTP_OFFSET_US (NTP_OFFSET * 1000000ULL)
static uint64_t ntp_time(void)
{
return (av_gettime() / 1000) * 1000 + NTP_OFFSET_US;
}
static int is_supported(enum CodecID id)
{
@ -91,7 +85,7 @@ static int rtp_write_header(AVFormatContext *s1)
s->cur_timestamp = 0;
s->ssrc = 0; /* FIXME: was random(), what should this be? */
s->first_packet = 1;
s->first_rtcp_ntp_time = ntp_time();
s->first_rtcp_ntp_time = ff_ntp_time();
max_packet_size = url_fget_max_packet_size(s1->pb);
if (max_packet_size <= 12)
@ -346,8 +340,8 @@ static int rtp_write_packet(AVFormatContext *s1, AVPacket *pkt)
rtcp_bytes = ((s->octet_count - s->last_octet_count) * RTCP_TX_RATIO_NUM) /
RTCP_TX_RATIO_DEN;
if (s->first_packet || ((rtcp_bytes >= RTCP_SR_SIZE) &&
(ntp_time() - s->last_rtcp_ntp_time > 5000000))) {
rtcp_send_sr(s1, ntp_time());
(ff_ntp_time() - s->last_rtcp_ntp_time > 5000000))) {
rtcp_send_sr(s1, ff_ntp_time());
s->last_octet_count = s->octet_count;
s->first_packet = 0;
}

8
libavformat/utils.c
View file

@ -3073,6 +3073,14 @@ int64_t av_gettime(void)
return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec;
}
#define NTP_OFFSET 2208988800ULL
#define NTP_OFFSET_US (NTP_OFFSET * 1000000ULL)
uint64_t ff_ntp_time(void)
{
return (av_gettime() / 1000) * 1000 + NTP_OFFSET_US;
}
int64_t parse_date(const char *datestr, int duration)
{
const char *p;