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rtpjitterbuffer: Use an extended RTP timestamp for the clock-base

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It is compared to other extended RTP timestamps all over rtpjitterbuffer
and since 4df3da3bab the initial extended RTP timestamp is not equal
anymore to the plain RTP time.

Continue passing a non-extended RTP timestamp via the `sync` signal for
backwards compatibility. It will always be a timestamp inside the first
extended timestamp period anyway.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6536>
This commit is contained in:
Sebastian Dröge 2024-04-04 13:11:54 +03:00 committed by GStreamer Marge Bot
parent 4a4eb56fc2
commit 0c34c85f7a
1 changed files with 9 additions and 8 deletions
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17
subprojects/gst-plugins-good/gst/rtpmanager/gstrtpjitterbuffer.c
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@ -1611,14 +1611,15 @@ gst_jitter_buffer_sink_parse_caps (GstRtpJitterBuffer * jitterbuffer,
gst_rtp_packet_rate_ctx_reset (&priv->packet_rate_ctx, priv->clock_rate);
/* The clock base is the RTP timestamp corrsponding to the npt-start value. We
/* The clock base is the RTP timestamp corresponding to the npt-start value. We
* can use this to track the amount of time elapsed on the sender. */
if (gst_structure_get_uint (caps_struct, "clock-base", &val))
priv->clock_base = val;
else
priv->ext_timestamp = -1;
if (gst_structure_get_uint (caps_struct, "clock-base", &val)) {
priv->clock_base = gst_rtp_buffer_ext_timestamp (&priv->ext_timestamp, val);
priv->ext_timestamp = priv->clock_base;
} else {
priv->clock_base = -1;
priv->ext_timestamp = priv->clock_base;
}
GST_DEBUG_OBJECT (jitterbuffer, "got clock-base %" G_GINT64_FORMAT,
priv->clock_base);
@ -4686,7 +4687,7 @@ do_handle_sync_inband (GstRtpJitterBuffer * jitterbuffer, guint64 ntpnstime)
"base-rtptime", G_TYPE_UINT64, base_rtptime,
"base-time", G_TYPE_UINT64, base_time,
"clock-rate", G_TYPE_UINT, clock_rate,
"clock-base", G_TYPE_UINT64, priv->clock_base,
"clock-base", G_TYPE_UINT64, priv->clock_base & G_MAXUINT32,
"cname", G_TYPE_STRING, cname,
"ssrc", G_TYPE_UINT, priv->last_ssrc,
"inband-ext-rtptime", G_TYPE_UINT64, last_rtptime,
@ -4774,7 +4775,7 @@ do_handle_sync (GstRtpJitterBuffer * jitterbuffer)
"base-rtptime", G_TYPE_UINT64, base_rtptime,
"base-time", G_TYPE_UINT64, base_time,
"clock-rate", G_TYPE_UINT, clock_rate,
"clock-base", G_TYPE_UINT64, clock_base,
"clock-base", G_TYPE_UINT64, priv->clock_base & G_MAXUINT32,
"ssrc", G_TYPE_UINT, priv->last_sr_ssrc,
"sr-ext-rtptime", G_TYPE_UINT64, ext_rtptime,
"sr-ntpnstime", G_TYPE_UINT64, priv->last_sr_ntpnstime,