diff --git a/janus/src/memsinkfd.c b/janus/src/memsinkfd.c
index 7041c13..09a8401 100644
--- a/janus/src/memsinkfd.c
+++ b/janus/src/memsinkfd.c
@@ -50,8 +50,9 @@ frame_s *memsink_fd_get_frame(int fd, memsink_shared_s *mem, uint64_t *frame_id)
 	frame_s *frame = frame_init();
 	frame_set_data(frame, mem->data, mem->used);
 	FRAME_COPY_META(mem, frame);
+	frame->extra1_ts = get_now_monotonic();
 	*frame_id = mem->id;
-	mem->last_client_ts = get_now_monotonic();
+	mem->last_client_ts = frame->extra1_ts;
 
 	bool ok = true;
 	if (frame->format != V4L2_PIX_FMT_H264) {
diff --git a/janus/src/plugin.c b/janus/src/plugin.c
index aed5edc..36cad52 100644
--- a/janus/src/plugin.c
+++ b/janus/src/plugin.c
@@ -110,9 +110,17 @@ static void *_video_rtp_thread(UNUSED void *arg) {
 	while (!STOP) {
 		frame_s *frame;
 		if (queue_get(_g_video_queue, (void **)&frame, 0.1) == 0) {
+			frame->extra2_ts = get_now_monotonic();
 			LOCK_VIDEO;
 			rtpv_wrap(_g_rtpv, frame);
 			UNLOCK_VIDEO;
+			frame->extra3_ts = get_now_monotonic();
+			JLOG_INFO("video",
+				"grab_ts=%Lf, encode_begin_ts=%Lf, encode_end_ts=%Lf,"
+				" memsink_ts=%Lf, rtp_begin_ts=%Lf, rtp_end_ts=%Lf, latency=%Lf",
+				frame->grab_ts, frame->encode_begin_ts, frame->encode_end_ts,
+				frame->extra1_ts, frame->extra2_ts, frame->extra3_ts,
+				(frame->extra3_ts - frame->encode_begin_ts));
 			frame_destroy(frame);
 		}
 	}
diff --git a/src/libs/frame.h b/src/libs/frame.h
index a9d444c..45f4bee 100644
--- a/src/libs/frame.h
+++ b/src/libs/frame.h
@@ -54,6 +54,10 @@ typedef struct {
 	long double	grab_ts;
 	long double	encode_begin_ts;
 	long double	encode_end_ts;
+
+	long double extra1_ts;
+	long double extra2_ts;
+	long double extra3_ts;
 } frame_s;