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rtpsession: Send GstForceKeyUnit event in response to received RTCP PLI

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This commit is contained in:
Olivier Crête 2010-06-23 16:43:24 -04:00 committed by Wim Taymans
parent 7350d2adfa
commit a61bb9e94b
3 changed files with 56 additions and 1 deletions
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18
gst/rtpmanager/gstrtpsession.c
View file

@ -257,6 +257,8 @@ static GstFlowReturn gst_rtp_session_sync_rtcp (RTPSession * sess,
static gint gst_rtp_session_clock_rate (RTPSession * sess, guint8 payload,
gpointer user_data);
static void gst_rtp_session_reconsider (RTPSession * sess, gpointer user_data);
static void gst_rtp_session_request_key_unit (RTPSession * sess,
gboolean all_headers, gpointer user_data);
static RTPSessionCallbacks callbacks = {
gst_rtp_session_process_rtp,
@ -264,7 +266,8 @@ static RTPSessionCallbacks callbacks = {
gst_rtp_session_sync_rtcp,
gst_rtp_session_send_rtcp,
gst_rtp_session_clock_rate,
gst_rtp_session_reconsider
gst_rtp_session_reconsider,
gst_rtp_session_request_key_unit
};
/* GObject vmethods */
@ -2143,3 +2146,16 @@ wrong_pad:
return;
}
}
static void
gst_rtp_session_request_key_unit (RTPSession * sess,
gboolean all_headers, gpointer user_data)
{
GstRtpSession *rtpsession = GST_RTP_SESSION (user_data);
GstEvent *event;
event = gst_event_new_custom (GST_EVENT_CUSTOM_UPSTREAM,
gst_structure_new ("GstForceKeyUnit",
"all-headers", G_TYPE_BOOLEAN, all_headers, NULL));
gst_pad_push_event (rtpsession->send_rtp_sink, event);
}

23
gst/rtpmanager/rtpsession.c
View file

@ -769,6 +769,10 @@ rtp_session_set_callbacks (RTPSession * sess, RTPSessionCallbacks * callbacks,
sess->callbacks.reconsider = callbacks->reconsider;
sess->reconsider_user_data = user_data;
}
if (callbacks->request_key_unit) {
sess->callbacks.request_key_unit = callbacks->request_key_unit;
sess->request_key_unit_user_data = user_data;
}
}
/**
@ -2042,6 +2046,25 @@ rtp_session_process_feedback (RTPSession * sess, GstRTCPPacket * packet,
if (src)
rtp_source_retain_rtcp_packet (src, packet, arrival->running_time);
}
if (rtp_source_get_ssrc (sess->source) == media_ssrc) {
switch (type) {
case GST_RTCP_TYPE_PSFB:
switch (fbtype) {
case GST_RTCP_PSFB_TYPE_PLI:
if (sess->callbacks.request_key_unit)
sess->callbacks.request_key_unit (sess, FALSE,
sess->request_key_unit_user_data);
break;
default:
break;
}
break;
case GST_RTCP_TYPE_RTPFB:
default:
break;
}
}
}
/**

16
gst/rtpmanager/rtpsession.h
View file

@ -120,6 +120,19 @@ typedef gint (*RTPSessionClockRate) (RTPSession *sess, guint8 payload, gpointer
*/
typedef void (*RTPSessionReconsider) (RTPSession *sess, gpointer user_data);
/**
* RTPSessionRequestKeyUnit:
* @sess: an #RTPSession
* @all_headers: %TRUE if "all-headers" property should be set on the key unit
* request
* @user_data: user data specified when registering
*
* Asks the encoder to produce a key unit as soon as possibly within the
* bandwidth constraints
*/
typedef void (*RTPSessionRequestKeyUnit) (RTPSession *sess,
gboolean all_headers, gpointer user_data);
/**
* RTPSessionCallbacks:
* @RTPSessionProcessRTP: callback to process RTP packets
@ -127,6 +140,7 @@ typedef void (*RTPSessionReconsider) (RTPSession *sess, gpointer user_data);
* @RTPSessionSendRTCP: callback for sending RTCP packets
* @RTPSessionSyncRTCP: callback for handling SR packets
* @RTPSessionReconsider: callback for reconsidering the timeout
* @RTPSessionRequestKeyUnit: callback for requesting a new key unit
*
* These callbacks can be installed on the session manager to get notification
* when RTP and RTCP packets are ready for further processing. These callbacks
@ -139,6 +153,7 @@ typedef struct {
RTPSessionSendRTCP send_rtcp;
RTPSessionClockRate clock_rate;
RTPSessionReconsider reconsider;
RTPSessionRequestKeyUnit request_key_unit;
} RTPSessionCallbacks;
/**
@ -197,6 +212,7 @@ struct _RTPSession {
gpointer sync_rtcp_user_data;
gpointer clock_rate_user_data;
gpointer reconsider_user_data;
gpointer request_key_unit_user_data;
RTPSessionStats stats;