*/
/**
- * SECTION:element-gstrtpssrcdemux
+ * SECTION:element-rtpssrcdemux
*
- * gstrtpssrcdemux acts as a demuxer for RTP packets based on the SSRC of the
+ * rtpssrcdemux acts as a demuxer for RTP packets based on the SSRC of the
* packets. Its main purpose is to allow an application to easily receive and
* decode an RTP stream with multiple SSRCs.
*
* <refsect2>
* <title>Example pipelines</title>
* |[
- * gst-launch-1.0 udpsrc caps="application/x-rtp" ! gstrtpssrcdemux ! fakesink
+ * gst-launch-1.0 udpsrc caps="application/x-rtp" ! rtpssrcdemux ! fakesink
* ]| Takes an RTP stream and send the RTP packets with the first detected SSRC
* to fakesink, discarding the other SSRCs.
* </refsect2>
- *
- * Last reviewed on 2007-05-28 (0.10.5)
*/
#ifdef HAVE_CONFIG_H
#include <gst/rtp/gstrtpbuffer.h>
#include <gst/rtp/gstrtcpbuffer.h>
-#include "gstrtpbin-marshal.h"
#include "gstrtpssrcdemux.h"
GST_DEBUG_CATEGORY_STATIC (gst_rtp_ssrc_demux_debug);
static GstFlowReturn gst_rtp_ssrc_demux_rtcp_chain (GstPad * pad,
GstObject * parent, GstBuffer * buf);
-static gboolean gst_rtp_ssrc_demux_rtcp_sink_event (GstPad * pad,
- GstObject * parent, GstEvent * event);
static GstIterator *gst_rtp_ssrc_demux_iterate_internal_links_sink (GstPad *
pad, GstObject * parent);
GstPad *rtp_pad;
GstCaps *caps;
GstPad *rtcp_pad;
+
+ gboolean pushed_initial_rtp_events;
+ gboolean pushed_initial_rtcp_events;
};
/* find a src pad for a given SSRC, returns NULL if the SSRC was not found
return event;
}
-struct ForwardEventData
+struct ForwardStickyEventData
{
GstPad *pad;
guint32 ssrc;
static gboolean
forward_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data)
{
- struct ForwardEventData *data = user_data;
+ struct ForwardStickyEventData *data = user_data;
GstEvent *newevent;
newevent = add_ssrc_and_ref (*event, data->ssrc);
return TRUE;
}
+static void
+forward_initial_events (GstRtpSsrcDemux * demux, guint32 ssrc, GstPad * pad,
+ PadType padtype)
+{
+ struct ForwardStickyEventData fdata;
+ GstPad *sinkpad = NULL;
+
+ if (padtype == RTP_PAD)
+ sinkpad = demux->rtp_sink;
+ else if (padtype == RTCP_PAD)
+ sinkpad = demux->rtcp_sink;
+ else
+ g_assert_not_reached ();
+
+ fdata.ssrc = ssrc;
+ fdata.pad = pad;
+
+ gst_pad_sticky_events_foreach (sinkpad, forward_sticky_events, &fdata);
+}
static GstPad *
find_or_create_demux_pad_for_ssrc (GstRtpSsrcDemux * demux, guint32 ssrc,
GstPadTemplate *templ;
gchar *padname;
GstRtpSsrcDemuxPad *demuxpad;
- GstCaps *caps;
- struct ForwardEventData fdata;
GstPad *retpad;
gulong rtp_block, rtcp_block;
- GST_DEBUG_OBJECT (demux, "creating pad for SSRC %08x", ssrc);
-
GST_PAD_LOCK (demux);
demuxpad = find_demux_pad_for_ssrc (demux, ssrc);
if (demuxpad != NULL) {
+ gboolean forward = FALSE;
+
switch (padtype) {
case RTP_PAD:
retpad = gst_object_ref (demuxpad->rtp_pad);
+ if (!demuxpad->pushed_initial_rtp_events) {
+ forward = TRUE;
+ demuxpad->pushed_initial_rtp_events = TRUE;
+ }
break;
case RTCP_PAD:
retpad = gst_object_ref (demuxpad->rtcp_pad);
+ if (!demuxpad->pushed_initial_rtcp_events) {
+ forward = TRUE;
+ demuxpad->pushed_initial_rtcp_events = TRUE;
+ }
break;
default:
retpad = NULL;
g_assert_not_reached ();
}
+
GST_PAD_UNLOCK (demux);
+
+ if (forward)
+ forward_initial_events (demux, ssrc, retpad, padtype);
return retpad;
}
+ GST_DEBUG_OBJECT (demux, "creating new pad for SSRC %08x", ssrc);
+
klass = GST_ELEMENT_GET_CLASS (demux);
templ = gst_element_class_get_pad_template (klass, "src_%u");
padname = g_strdup_printf ("src_%u", ssrc);
demuxpad->rtp_pad = rtp_pad;
demuxpad->rtcp_pad = rtcp_pad;
- fdata.ssrc = ssrc;
-
gst_pad_set_element_private (rtp_pad, demuxpad);
gst_pad_set_element_private (rtcp_pad, demuxpad);
gst_pad_set_event_function (rtp_pad, gst_rtp_ssrc_demux_src_event);
gst_pad_use_fixed_caps (rtp_pad);
gst_pad_set_active (rtp_pad, TRUE);
- fdata.pad = rtp_pad;
- gst_pad_sticky_events_foreach (demux->rtp_sink, forward_sticky_events,
- &fdata);
gst_pad_set_event_function (rtcp_pad, gst_rtp_ssrc_demux_src_event);
gst_pad_set_iterate_internal_links_function (rtcp_pad,
gst_rtp_ssrc_demux_iterate_internal_links_src);
gst_pad_use_fixed_caps (rtcp_pad);
gst_pad_set_active (rtcp_pad, TRUE);
- fdata.pad = rtcp_pad;
- gst_pad_sticky_events_foreach (demux->rtcp_sink, forward_sticky_events,
- &fdata);
-
- /* copy caps from input */
- if ((caps = gst_pad_get_current_caps (demux->rtp_sink))) {
- gst_pad_set_caps (rtp_pad, caps);
- gst_caps_unref (caps);
- }
- if ((caps = gst_pad_get_current_caps (demux->rtcp_sink))) {
- gst_pad_set_caps (rtcp_pad, caps);
- gst_caps_unref (caps);
+
+ if (padtype == RTP_PAD) {
+ demuxpad->pushed_initial_rtp_events = TRUE;
+ forward_initial_events (demux, ssrc, rtp_pad, padtype);
+ } else if (padtype == RTCP_PAD) {
+ demuxpad->pushed_initial_rtcp_events = TRUE;
+ forward_initial_events (demux, ssrc, rtcp_pad, padtype);
+ } else {
+ g_assert_not_reached ();
}
+
gst_element_add_pad (GST_ELEMENT_CAST (demux), rtp_pad);
gst_element_add_pad (GST_ELEMENT_CAST (demux), rtcp_pad);
g_signal_new ("new-ssrc-pad",
G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstRtpSsrcDemuxClass, new_ssrc_pad),
- NULL, NULL, gst_rtp_bin_marshal_VOID__UINT_OBJECT,
- G_TYPE_NONE, 2, G_TYPE_UINT, GST_TYPE_PAD);
+ NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 2, G_TYPE_UINT,
+ GST_TYPE_PAD);
/**
* GstRtpSsrcDemux::removed-ssrc-pad:
g_signal_new ("removed-ssrc-pad",
G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstRtpSsrcDemuxClass, removed_ssrc_pad),
- NULL, NULL, gst_rtp_bin_marshal_VOID__UINT_OBJECT,
- G_TYPE_NONE, 2, G_TYPE_UINT, GST_TYPE_PAD);
+ NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 2, G_TYPE_UINT,
+ GST_TYPE_PAD);
/**
* GstRtpSsrcDemux::clear-ssrc:
g_signal_new ("clear-ssrc",
G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GstRtpSsrcDemuxClass, clear_ssrc),
- NULL, NULL, gst_rtp_bin_marshal_VOID__UINT, G_TYPE_NONE, 1, G_TYPE_UINT);
+ NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 1, G_TYPE_UINT);
gstelement_klass->change_state =
GST_DEBUG_FUNCPTR (gst_rtp_ssrc_demux_change_state);
gstrtpssrcdemux_klass->clear_ssrc =
GST_DEBUG_FUNCPTR (gst_rtp_ssrc_demux_clear_ssrc);
- gst_element_class_add_pad_template (gstelement_klass,
- gst_static_pad_template_get (&rtp_ssrc_demux_sink_template));
- gst_element_class_add_pad_template (gstelement_klass,
- gst_static_pad_template_get (&rtp_ssrc_demux_rtcp_sink_template));
- gst_element_class_add_pad_template (gstelement_klass,
- gst_static_pad_template_get (&rtp_ssrc_demux_src_template));
- gst_element_class_add_pad_template (gstelement_klass,
- gst_static_pad_template_get (&rtp_ssrc_demux_rtcp_src_template));
+ gst_element_class_add_static_pad_template (gstelement_klass,
+ &rtp_ssrc_demux_sink_template);
+ gst_element_class_add_static_pad_template (gstelement_klass,
+ &rtp_ssrc_demux_rtcp_sink_template);
+ gst_element_class_add_static_pad_template (gstelement_klass,
+ &rtp_ssrc_demux_src_template);
+ gst_element_class_add_static_pad_template (gstelement_klass,
+ &rtp_ssrc_demux_rtcp_src_template);
gst_element_class_set_static_metadata (gstelement_klass, "RTP SSRC Demux",
"Demux/Network/RTP",
gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
"rtcp_sink"), "rtcp_sink");
gst_pad_set_chain_function (demux->rtcp_sink, gst_rtp_ssrc_demux_rtcp_chain);
- gst_pad_set_event_function (demux->rtcp_sink,
- gst_rtp_ssrc_demux_rtcp_sink_event);
+ gst_pad_set_event_function (demux->rtcp_sink, gst_rtp_ssrc_demux_sink_event);
gst_pad_set_iterate_internal_links_function (demux->rtcp_sink,
gst_rtp_ssrc_demux_iterate_internal_links_sink);
gst_element_add_pad (GST_ELEMENT_CAST (demux), demux->rtcp_sink);
g_rec_mutex_init (&demux->padlock);
-
- gst_segment_init (&demux->segment, GST_FORMAT_UNDEFINED);
}
static void
}
}
-static gboolean
-gst_rtp_ssrc_demux_sink_event (GstPad * pad, GstObject * parent,
- GstEvent * event)
+struct ForwardEventData
{
GstRtpSsrcDemux *demux;
- gboolean res = FALSE;
-
- demux = GST_RTP_SSRC_DEMUX (parent);
-
- switch (GST_EVENT_TYPE (event)) {
- case GST_EVENT_FLUSH_STOP:
- gst_segment_init (&demux->segment, GST_FORMAT_UNDEFINED);
- /* fallthrough */
- default:
- {
- GSList *walk;
- GSList *pads = NULL;
-
- res = TRUE;
- /* need local snapshot of pads;
- * should not push downstream while holding lock as that might deadlock
- * with stuff traveling upstream tyring to get this lock while holding
- * other (stream)lock */
- GST_PAD_LOCK (demux);
- for (walk = demux->srcpads; walk; walk = g_slist_next (walk)) {
- GstRtpSsrcDemuxPad *pad = (GstRtpSsrcDemuxPad *) walk->data;
-
- pad = g_slice_dup (GstRtpSsrcDemuxPad, pad);
- gst_object_ref (pad->rtp_pad);
-
- pads = g_slist_prepend (pads, pad);
- }
- GST_PAD_UNLOCK (demux);
+ GstEvent *event;
+ gboolean res;
+ GstPad *pad;
+};
- for (walk = pads; walk; walk = g_slist_next (walk)) {
- GstRtpSsrcDemuxPad *dpad = walk->data;
- GstEvent *newevent;
+static gboolean
+forward_event (GstPad * pad, gpointer user_data)
+{
+ struct ForwardEventData *fdata = user_data;
+ GSList *walk = NULL;
+ GstEvent *newevent = NULL;
- newevent = add_ssrc_and_ref (event, dpad->ssrc);
+ GST_PAD_LOCK (fdata->demux);
+ for (walk = fdata->demux->srcpads; walk; walk = walk->next) {
+ GstRtpSsrcDemuxPad *dpad = (GstRtpSsrcDemuxPad *) walk->data;
- res &= gst_pad_push_event (dpad->rtp_pad, newevent);
- gst_object_unref (dpad->rtp_pad);
- g_slice_free (GstRtpSsrcDemuxPad, dpad);
- }
- g_slist_free (pads);
- gst_event_unref (event);
+ /* Only forward the event if the initial events have been through first,
+ * the initial events should be forwarded before any other event
+ * or buffer is pushed */
+ if ((pad == dpad->rtp_pad && dpad->pushed_initial_rtp_events) ||
+ (pad == dpad->rtcp_pad && dpad->pushed_initial_rtcp_events)) {
+ newevent = add_ssrc_and_ref (fdata->event, dpad->ssrc);
break;
}
}
+ GST_PAD_UNLOCK (fdata->demux);
- return res;
+ if (newevent)
+ fdata->res &= gst_pad_push_event (pad, newevent);
+
+ return TRUE;
}
+
static gboolean
-gst_rtp_ssrc_demux_rtcp_sink_event (GstPad * pad, GstObject * parent,
+gst_rtp_ssrc_demux_sink_event (GstPad * pad, GstObject * parent,
GstEvent * event)
{
GstRtpSsrcDemux *demux;
- gboolean res = TRUE;
- GSList *walk;
- GSList *pads = NULL;
+ struct ForwardEventData fdata;
demux = GST_RTP_SSRC_DEMUX (parent);
- GST_PAD_LOCK (demux);
- for (walk = demux->srcpads; walk; walk = g_slist_next (walk)) {
- GstRtpSsrcDemuxPad *pad = (GstRtpSsrcDemuxPad *) walk->data;
-
- pad = g_slice_dup (GstRtpSsrcDemuxPad, pad);
- gst_object_ref (pad->rtcp_pad);
+ fdata.demux = demux;
+ fdata.pad = pad;
+ fdata.event = event;
+ fdata.res = TRUE;
- pads = g_slist_prepend (pads, pad);
- }
- GST_PAD_UNLOCK (demux);
-
- for (walk = pads; walk; walk = g_slist_next (walk)) {
- GstRtpSsrcDemuxPad *dpad = walk->data;
- GstEvent *newevent;
-
- newevent = add_ssrc_and_ref (event, dpad->ssrc);
+ gst_pad_forward (pad, forward_event, &fdata);
- res &= gst_pad_push_event (dpad->rtcp_pad, newevent);
- gst_object_unref (dpad->rtcp_pad);
- g_slice_free (GstRtpSsrcDemuxPad, dpad);
- }
- g_slist_free (pads);
gst_event_unref (event);
- return res;
+ return fdata.res;
}
static GstFlowReturn
demux = GST_RTP_SSRC_DEMUX (parent);
- if (!gst_rtcp_buffer_validate (buf))
+ if (!gst_rtcp_buffer_validate_reduced (buf))
goto invalid_rtcp;
gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
goto invalid_rtcp;
}
- /* first packet must be SR or RR or else the validate would have failed */
+ /* first packet must be SR or RR, or in case of a reduced size RTCP packet
+ * it must be APP, RTPFB or PSFB feeadback, or else the validate would
+ * have failed */
switch (gst_rtcp_packet_get_type (&packet)) {
case GST_RTCP_TYPE_SR:
/* get the ssrc so that we can route it to the right source pad */
gst_rtcp_packet_sr_get_sender_info (&packet, &ssrc, NULL, NULL, NULL,
NULL);
break;
+ case GST_RTCP_TYPE_RR:
+ ssrc = gst_rtcp_packet_rr_get_ssrc (&packet);
+ break;
+ case GST_RTCP_TYPE_APP:
+ case GST_RTCP_TYPE_RTPFB:
+ case GST_RTCP_TYPE_PSFB:
+ ssrc = gst_rtcp_packet_fb_get_sender_ssrc (&packet);
+ break;
default:
goto unexpected_rtcp;
}
{
GstPad *pad = GST_PAD (g_value_get_object (a));
const gchar *prefix = g_value_get_string (b);
- gint res = 1;
+ gint res;
+ /* 0 means equal means we accept the pad, accepted if there is a name
+ * and it starts with the prefix */
GST_OBJECT_LOCK (pad);
- res = !GST_PAD_NAME (pad) || g_str_has_prefix (GST_PAD_NAME (pad), prefix);
+ res = !GST_PAD_NAME (pad) || !g_str_has_prefix (GST_PAD_NAME (pad), prefix);
GST_OBJECT_UNLOCK (pad);
return res;
projects / platform / upstream / gst-plugins-good.git / blobdiff