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rtpsession: Add the option to auto-discover the RTP bandwidth

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This commit is contained in:
Olivier Crête 2010-06-01 21:17:26 -04:00 committed by Wim Taymans
parent f38e37470a
commit 6f53a2b240
2 changed files with 27 additions and 3 deletions
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2
gst/rtpmanager/gstrtpsession.c
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@ -537,7 +537,7 @@ gst_rtp_session_class_init (GstRtpSessionClass * klass)
g_object_class_install_property (gobject_class, PROP_BANDWIDTH,
g_param_spec_double ("bandwidth", "Bandwidth",
"The bandwidth of the session in bytes per second",
"The bandwidth of the session in bytes per second (0 for auto-discover)",
0.0, G_MAXDOUBLE, DEFAULT_BANDWIDTH, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_RTCP_FRACTION,

28
gst/rtpmanager/rtpsession.c
View file

@ -250,7 +250,7 @@ rtp_session_class_init (RTPSessionClass * klass)
g_object_class_install_property (gobject_class, PROP_BANDWIDTH,
g_param_spec_double ("bandwidth", "Bandwidth",
"The bandwidth of the session",
"The bandwidth of the session (0 for auto-discover)",
0.0, G_MAXDOUBLE, DEFAULT_BANDWIDTH,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
@ -2063,14 +2063,38 @@ invalid_packet:
}
}
static void
add_bitrates (gpointer key, gpointer value, gpointer user_data)
{
gdouble *bandwidth = user_data;
RTPSource *source = value;
*bandwidth += source->bitrate;
}
static GstClockTime
calculate_rtcp_interval (RTPSession * sess, gboolean deterministic,
gboolean first)
{
GstClockTime result;
if (sess->recalc_bandwidth) {
if (sess->recalc_bandwidth || sess->bandwidth == 0) {
/* recalculate bandwidth when it changed */
gdouble bandwidth;
if (sess->bandwidth > 0)
bandwidth = sess->bandwidth;
else {
/* If it is <= 0, then try to estimate the actual bandwidth */
bandwidth = sess->source->bitrate;
g_hash_table_foreach (sess->cnames, add_bitrates, &bandwidth);
bandwidth /= 8.0;
}
if (bandwidth == 0)
bandwidth = RTP_STATS_BANDWIDTH;
rtp_stats_set_bandwidths (&sess->stats, sess->bandwidth,
sess->rtcp_bandwidth, sess->rtcp_rs_bandwidth, sess->rtcp_rr_bandwidth);
sess->recalc_bandwidth = FALSE;