* [FFmpeg-devel] [PATCH] avformat/whip: make time measure more precise (PR #20391)
@ 2025-09-02 0:37 Jack Lau via ffmpeg-devel
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From: Jack Lau via ffmpeg-devel @ 2025-09-02 0:37 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Jack Lau
PR #20391 opened by Jack Lau (JackLau)
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20391
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20391.patch
Use av_gettime_relative() replace av_gettime() to get
better measure
Changed the display precision from showing only integers
to showing two decimal places (in milliseconds)
Signed-off-by: Jack Lau <jacklau1222@qq.com>
refer to https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20030#issuecomment-822 and https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20030#issuecomment-823
>From 7c9162f8ca1753f13e2a46ad58b34a6b05e884dd Mon Sep 17 00:00:00 2001
From: Jack Lau <jacklau1222@qq.com>
Date: Tue, 2 Sep 2025 08:28:36 +0800
Subject: [PATCH] avformat/whip: make time measure more precise
Use av_gettime_relative() replace av_gettime() to get
better measure
Changed the display precision from showing only integers
to showing two decimal places (in milliseconds)
Signed-off-by: Jack Lau <jacklau1222@qq.com>
---
libavformat/whip.c | 50 +++++++++++++++++++++++-----------------------
1 file changed, 25 insertions(+), 25 deletions(-)
diff --git a/libavformat/whip.c b/libavformat/whip.c
index 1fcf19aaa3..e8b8a16d9f 100644
--- a/libavformat/whip.c
+++ b/libavformat/whip.c
@@ -151,7 +151,7 @@
#define WHIP_SDP_CREATOR_IP "127.0.0.1"
/* Calculate the elapsed time from starttime to endtime in milliseconds. */
-#define ELAPSED(starttime, endtime) ((int)(endtime - starttime) / 1000)
+#define ELAPSED(starttime, endtime) ((float)(endtime - starttime) / 1000)
/* STUN Attribute, comprehension-required range (0x0000-0x7FFF) */
enum STUNAttr {
@@ -370,7 +370,7 @@ static av_cold int initialize(AVFormatContext *s)
WHIPContext *whip = s->priv_data;
uint32_t seed;
- whip->whip_starttime = av_gettime();
+ whip->whip_starttime = av_gettime_relative();
ret = certificate_key_init(s);
if (ret < 0) {
@@ -391,9 +391,9 @@ static av_cold int initialize(AVFormatContext *s)
if (whip->state < WHIP_STATE_INIT)
whip->state = WHIP_STATE_INIT;
- whip->whip_init_time = av_gettime();
- av_log(whip, AV_LOG_VERBOSE, "Init state=%d, handshake_timeout=%dms, pkt_size=%d, seed=%d, elapsed=%dms\n",
- whip->state, whip->handshake_timeout, whip->pkt_size, seed, ELAPSED(whip->whip_starttime, av_gettime()));
+ whip->whip_init_time = av_gettime_relative();
+ av_log(whip, AV_LOG_VERBOSE, "Init state=%d, handshake_timeout=%dms, pkt_size=%d, seed=%d, elapsed=%.2fms\n",
+ whip->state, whip->handshake_timeout, whip->pkt_size, seed, ELAPSED(whip->whip_starttime, av_gettime_relative()));
return 0;
}
@@ -682,7 +682,7 @@ static int generate_sdp_offer(AVFormatContext *s)
if (whip->state < WHIP_STATE_OFFER)
whip->state = WHIP_STATE_OFFER;
- whip->whip_offer_time = av_gettime();
+ whip->whip_offer_time = av_gettime_relative();
av_log(whip, AV_LOG_VERBOSE, "Generated state=%d, offer: %s\n", whip->state, whip->sdp_offer);
end:
@@ -898,10 +898,10 @@ static int parse_answer(AVFormatContext *s)
if (whip->state < WHIP_STATE_NEGOTIATED)
whip->state = WHIP_STATE_NEGOTIATED;
- whip->whip_answer_time = av_gettime();
- av_log(whip, AV_LOG_VERBOSE, "SDP state=%d, offer=%zuB, answer=%zuB, ufrag=%s, pwd=%zuB, transport=%s://%s:%d, elapsed=%dms\n",
+ whip->whip_answer_time = av_gettime_relative();
+ av_log(whip, AV_LOG_VERBOSE, "SDP state=%d, offer=%zuB, answer=%zuB, ufrag=%s, pwd=%zuB, transport=%s://%s:%d, elapsed=%.2fms\n",
whip->state, strlen(whip->sdp_offer), strlen(whip->sdp_answer), whip->ice_ufrag_remote, strlen(whip->ice_pwd_remote),
- whip->ice_protocol, whip->ice_host, whip->ice_port, ELAPSED(whip->whip_starttime, av_gettime()));
+ whip->ice_protocol, whip->ice_host, whip->ice_port, ELAPSED(whip->whip_starttime, av_gettime_relative()));
end:
avio_context_free(&pb);
@@ -1179,9 +1179,9 @@ static int udp_connect(AVFormatContext *s)
if (whip->state < WHIP_STATE_UDP_CONNECTED)
whip->state = WHIP_STATE_UDP_CONNECTED;
- whip->whip_udp_time = av_gettime();
- av_log(whip, AV_LOG_VERBOSE, "UDP state=%d, elapsed=%dms, connected to udp://%s:%d\n",
- whip->state, ELAPSED(whip->whip_starttime, av_gettime()), whip->ice_host, whip->ice_port);
+ whip->whip_udp_time = av_gettime_relative();
+ av_log(whip, AV_LOG_VERBOSE, "UDP state=%d, elapsed=%.2fms, connected to udp://%s:%d\n",
+ whip->state, ELAPSED(whip->whip_starttime, av_gettime_relative()), whip->ice_host, whip->ice_port);
end:
av_dict_free(&opts);
@@ -1191,7 +1191,7 @@ end:
static int ice_dtls_handshake(AVFormatContext *s)
{
int ret = 0, size, i;
- int64_t starttime = av_gettime(), now;
+ int64_t starttime = av_gettime_relative(), now;
WHIPContext *whip = s->priv_data;
AVDictionary *opts = NULL;
char buf[256], *cert_buf = NULL, *key_buf = NULL;
@@ -1225,9 +1225,9 @@ next_packet:
/* DTLS handshake is done, exit the loop. */
break;
- now = av_gettime();
+ now = av_gettime_relative();
if (now - starttime >= whip->handshake_timeout * 1000) {
- av_log(whip, AV_LOG_ERROR, "DTLS handshake timeout=%dms, cost=%dms, elapsed=%dms, state=%d\n",
+ av_log(whip, AV_LOG_ERROR, "DTLS handshake timeout=%dms, cost=%.2fms, elapsed=%.2fms, state=%d\n",
whip->handshake_timeout, ELAPSED(starttime, now), ELAPSED(whip->whip_starttime, now), whip->state);
ret = AVERROR(ETIMEDOUT);
goto end;
@@ -1254,10 +1254,10 @@ next_packet:
if (ice_is_binding_response(whip->buf, ret)) {
if (whip->state < WHIP_STATE_ICE_CONNECTED) {
whip->state = WHIP_STATE_ICE_CONNECTED;
- whip->whip_ice_time = av_gettime();
- av_log(whip, AV_LOG_VERBOSE, "ICE STUN ok, state=%d, url=udp://%s:%d, location=%s, username=%s:%s, res=%dB, elapsed=%dms\n",
+ whip->whip_ice_time = av_gettime_relative();
+ av_log(whip, AV_LOG_VERBOSE, "ICE STUN ok, state=%d, url=udp://%s:%d, location=%s, username=%s:%s, res=%dB, elapsed=%.2fms\n",
whip->state, whip->ice_host, whip->ice_port, whip->whip_resource_url ? whip->whip_resource_url : "",
- whip->ice_ufrag_remote, whip->ice_ufrag_local, ret, ELAPSED(whip->whip_starttime, av_gettime()));
+ whip->ice_ufrag_remote, whip->ice_ufrag_local, ret, ELAPSED(whip->whip_starttime, av_gettime_relative()));
ff_url_join(buf, sizeof(buf), "dtls", NULL, whip->ice_host, whip->ice_port, NULL);
av_dict_set_int(&opts, "mtu", whip->pkt_size, 0);
@@ -1302,8 +1302,8 @@ next_packet:
}
if (!ret) {
whip->state = WHIP_STATE_DTLS_FINISHED;
- whip->whip_dtls_time = av_gettime();
- av_log(whip, AV_LOG_VERBOSE, "DTLS handshake is done, elapsed=%dms\n",
+ whip->whip_dtls_time = av_gettime_relative();
+ av_log(whip, AV_LOG_VERBOSE, "DTLS handshake is done, elapsed=%.2fms\n",
ELAPSED(whip->whip_starttime, whip->whip_dtls_time));
}
goto next_packet;
@@ -1401,9 +1401,9 @@ static int setup_srtp(AVFormatContext *s)
if (whip->state < WHIP_STATE_SRTP_FINISHED)
whip->state = WHIP_STATE_SRTP_FINISHED;
- whip->whip_srtp_time = av_gettime();
- av_log(whip, AV_LOG_VERBOSE, "SRTP setup done, state=%d, suite=%s, key=%zuB, elapsed=%dms\n",
- whip->state, suite, sizeof(send_key), ELAPSED(whip->whip_starttime, av_gettime()));
+ whip->whip_srtp_time = av_gettime_relative();
+ av_log(whip, AV_LOG_VERBOSE, "SRTP setup done, state=%d, suite=%s, key=%zuB, elapsed=%.2fms\n",
+ whip->state, suite, sizeof(send_key), ELAPSED(whip->whip_starttime, av_gettime_relative()));
end:
return ret;
@@ -1559,8 +1559,8 @@ static int create_rtp_muxer(AVFormatContext *s)
if (whip->state < WHIP_STATE_READY)
whip->state = WHIP_STATE_READY;
av_log(whip, AV_LOG_INFO, "Muxer state=%d, buffer_size=%d, max_packet_size=%d, "
- "elapsed=%dms(init:%d,offer:%d,answer:%d,udp:%d,ice:%d,dtls:%d,srtp:%d)\n",
- whip->state, buffer_size, max_packet_size, ELAPSED(whip->whip_starttime, av_gettime()),
+ "elapsed=%.2fms(init:%.2f,offer:%.2f,answer:%.2f,udp:%.2f,ice:%.2f,dtls:%.2f,srtp:%.2f)\n",
+ whip->state, buffer_size, max_packet_size, ELAPSED(whip->whip_starttime, av_gettime_relative()),
ELAPSED(whip->whip_starttime, whip->whip_init_time),
ELAPSED(whip->whip_init_time, whip->whip_offer_time),
ELAPSED(whip->whip_offer_time, whip->whip_answer_time),
--
2.49.1
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2025-09-02 0:37 [FFmpeg-devel] [PATCH] avformat/whip: make time measure more precise (PR #20391) Jack Lau via ffmpeg-devel
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