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rtpjitterbuffer: Add "rtx-next-seqnum" property

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If this is set to FALSE, rtpjitterbuffer will not request retransmissions for
future packets based on when they are estimated to arrive.

See also https://bugzilla.gnome.org/show_bug.cgi?id=748041

https://bugzilla.gnome.org/show_bug.cgi?id=739868
This commit is contained in:
Miguel París Díaz 2015-04-13 11:20:40 +02:00 committed by Sebastian Dröge
parent 68dfe93463
commit f81c9a9568
1 changed files with 32 additions and 1 deletions
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33
gst/rtpmanager/gstrtpjitterbuffer.c
View file

@ -128,6 +128,7 @@ enum
#define DEFAULT_MODE RTP_JITTER_BUFFER_MODE_SLAVE
#define DEFAULT_PERCENT 0
#define DEFAULT_DO_RETRANSMISSION FALSE
#define DEFAULT_RTX_NEXT_SEQNUM TRUE
#define DEFAULT_RTX_DELAY -1
#define DEFAULT_RTX_MIN_DELAY 0
#define DEFAULT_RTX_DELAY_REORDER 3
@ -149,6 +150,7 @@ enum
PROP_MODE,
PROP_PERCENT,
PROP_DO_RETRANSMISSION,
PROP_RTX_NEXT_SEQNUM,
PROP_RTX_DELAY,
PROP_RTX_MIN_DELAY,
PROP_RTX_DELAY_REORDER,
@ -246,6 +248,7 @@ struct _GstRtpJitterBufferPrivate
gint64 ts_offset;
gboolean do_lost;
gboolean do_retransmission;
gboolean rtx_next_seqnum;
gint rtx_delay;
guint rtx_min_delay;
gint rtx_delay_reorder;
@ -533,6 +536,23 @@ gst_rtp_jitter_buffer_class_init (GstRtpJitterBufferClass * klass)
DEFAULT_DO_RETRANSMISSION,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstRtpJitterBuffer:rtx-next-seqnum
*
* Estimate when the next packet should arrive and schedule a retransmission
* request for it.
* This is, when packet N arrives, a GstRTPRetransmission event is schedule
* for packet N+1. So it will be requested if it does not arrive at the expected time.
* The expected time is calculated using the dts of N and the packet spacing.
*
* Since: 1.6
*/
g_object_class_install_property (gobject_class, PROP_RTX_NEXT_SEQNUM,
g_param_spec_boolean ("rtx-next-seqnum", "RTX next seqnum",
"Estimate when the next packet should arrive and schedule a "
"retransmission request for it.",
DEFAULT_RTX_NEXT_SEQNUM, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstRtpJitterBuffer:rtx-delay:
*
@ -768,6 +788,7 @@ gst_rtp_jitter_buffer_init (GstRtpJitterBuffer * jitterbuffer)
priv->drop_on_latency = DEFAULT_DROP_ON_LATENCY;
priv->do_lost = DEFAULT_DO_LOST;
priv->do_retransmission = DEFAULT_DO_RETRANSMISSION;
priv->rtx_next_seqnum = DEFAULT_RTX_NEXT_SEQNUM;
priv->rtx_delay = DEFAULT_RTX_DELAY;
priv->rtx_min_delay = DEFAULT_RTX_MIN_DELAY;
priv->rtx_delay_reorder = DEFAULT_RTX_DELAY_REORDER;
@ -1929,7 +1950,7 @@ update_timers (GstRtpJitterBuffer * jitterbuffer, guint16 seqnum,
}
do_next_seqnum = do_next_seqnum && priv->packet_spacing > 0
&& priv->do_retransmission;
&& priv->do_retransmission && priv->rtx_next_seqnum;
if (timer && timer->type != TIMER_TYPE_DEADLINE) {
if (timer->num_rtx_retry > 0) {
@ -3608,6 +3629,11 @@ gst_rtp_jitter_buffer_set_property (GObject * object,
priv->do_retransmission = g_value_get_boolean (value);
JBUF_UNLOCK (priv);
break;
case PROP_RTX_NEXT_SEQNUM:
JBUF_LOCK (priv);
priv->rtx_next_seqnum = g_value_get_boolean (value);
JBUF_UNLOCK (priv);
break;
case PROP_RTX_DELAY:
JBUF_LOCK (priv);
priv->rtx_delay = g_value_get_int (value);
@ -3704,6 +3730,11 @@ gst_rtp_jitter_buffer_get_property (GObject * object,
g_value_set_boolean (value, priv->do_retransmission);
JBUF_UNLOCK (priv);
break;
case PROP_RTX_NEXT_SEQNUM:
JBUF_LOCK (priv);
g_value_set_boolean (value, priv->rtx_next_seqnum);
JBUF_UNLOCK (priv);
break;
case PROP_RTX_DELAY:
JBUF_LOCK (priv);
g_value_set_int (value, priv->rtx_delay);