static GstPad *
gst_rtp_dec_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * name, const GstCaps * caps)
{
GstRTPDec *rtpdec;
GstElementClass *klass;
GstPad *result;
g_return_val_if_fail (templ != NULL, NULL);
g_return_val_if_fail (GST_IS_RTP_DEC (element), NULL);
rtpdec = GST_RTP_DEC (element);
klass = GST_ELEMENT_GET_CLASS (element);
/* figure out the template */
if (templ == gst_element_class_get_pad_template (klass, "recv_rtp_sink_%u")) {
result = create_recv_rtp (rtpdec, templ, name);
} else if (templ == gst_element_class_get_pad_template (klass,
"recv_rtcp_sink_%u")) {
result = create_recv_rtcp (rtpdec, templ, name);
} else if (templ == gst_element_class_get_pad_template (klass, "rtcp_src_%u")) {
result = create_rtcp (rtpdec, templ, name);
} else
goto wrong_template;
return result;
/* ERRORS */
wrong_template:
{
g_warning ("rtpdec: this is not our template");
return NULL;
}
}
static GstClock *
gst_rtp_dec_provide_clock (GstElement * element)
{
GstRTPDec *rtpdec;
rtpdec = GST_RTP_DEC (element);
return GST_CLOCK_CAST (gst_object_ref (rtpdec->provided_clock));
}
static void
gst_rtp_dec_finalize (GObject * object)
{
GstRTPDec *rtpdec;
rtpdec = GST_RTP_DEC (object);
g_slist_foreach (rtpdec->sessions, (GFunc) free_session, NULL);
g_slist_free (rtpdec->sessions);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_rtp_dec_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstRTPDec *src;
src = GST_RTP_DEC (object);
switch (prop_id) {
case PROP_LATENCY:
g_value_set_uint (value, src->latency);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstFlowReturn
gst_rtp_dec_chain_rtcp (GstPad * pad, GstObject * parent, GstBuffer * buffer)
{
GstRTPDec *src;
#ifdef HAVE_RTCP
gboolean valid;
GstRTCPPacket packet;
gboolean more;
#endif
src = GST_RTP_DEC (parent);
GST_DEBUG_OBJECT (src, "got rtcp packet");
#ifdef HAVE_RTCP
valid = gst_rtcp_buffer_validate (buffer);
if (!valid)
goto bad_packet;
/* position on first packet */
more = gst_rtcp_buffer_get_first_packet (buffer, &packet);
while (more) {
switch (gst_rtcp_packet_get_type (&packet)) {
case GST_RTCP_TYPE_SR:
{
guint32 ssrc, rtptime, packet_count, octet_count;
guint64 ntptime;
guint count, i;
gst_rtcp_packet_sr_get_sender_info (&packet, &ssrc, &ntptime, &rtptime,
&packet_count, &octet_count);
GST_DEBUG_OBJECT (src,
"got SR packet: SSRC %08x, NTP %" G_GUINT64_FORMAT
", RTP %u, PC %u, OC %u", ssrc, ntptime, rtptime, packet_count,
octet_count);
count = gst_rtcp_packet_get_rb_count (&packet);
for (i = 0; i < count; i++) {
guint32 ssrc, exthighestseq, jitter, lsr, dlsr;
guint8 fractionlost;
gint32 packetslost;
gst_rtcp_packet_get_rb (&packet, i, &ssrc, &fractionlost,
&packetslost, &exthighestseq, &jitter, &lsr, &dlsr);
GST_DEBUG_OBJECT (src, "got RB packet %d: SSRC %08x, FL %u"
", PL %u, HS %u, JITTER %u, LSR %u, DLSR %u", ssrc, fractionlost,
packetslost, exthighestseq, jitter, lsr, dlsr);
}
break;
}
case GST_RTCP_TYPE_RR:
{
guint32 ssrc;
guint count, i;
ssrc = gst_rtcp_packet_rr_get_ssrc (&packet);
GST_DEBUG_OBJECT (src, "got RR packet: SSRC %08x", ssrc);
count = gst_rtcp_packet_get_rb_count (&packet);
for (i = 0; i < count; i++) {
guint32 ssrc, exthighestseq, jitter, lsr, dlsr;
guint8 fractionlost;
gint32 packetslost;
gst_rtcp_packet_get_rb (&packet, i, &ssrc, &fractionlost,
&packetslost, &exthighestseq, &jitter, &lsr, &dlsr);
GST_DEBUG_OBJECT (src, "got RB packet %d: SSRC %08x, FL %u"
", PL %u, HS %u, JITTER %u, LSR %u, DLSR %u", ssrc, fractionlost,
packetslost, exthighestseq, jitter, lsr, dlsr);
}
break;
}
case GST_RTCP_TYPE_SDES:
{
guint chunks, i, j;
gboolean more_chunks, more_items;
chunks = gst_rtcp_packet_sdes_get_chunk_count (&packet);
GST_DEBUG_OBJECT (src, "got SDES packet with %d chunks", chunks);
more_chunks = gst_rtcp_packet_sdes_first_chunk (&packet);
i = 0;
while (more_chunks) {
guint32 ssrc;
ssrc = gst_rtcp_packet_sdes_get_ssrc (&packet);
GST_DEBUG_OBJECT (src, "chunk %d, SSRC %08x", i, ssrc);
more_items = gst_rtcp_packet_sdes_first_item (&packet);
j = 0;
while (more_items) {
GstRTCPSDESType type;
guint8 len;
gchar *data;
gst_rtcp_packet_sdes_get_item (&packet, &type, &len, &data);
GST_DEBUG_OBJECT (src, "item %d, type %d, len %d, data %s", j,
type, len, data);
more_items = gst_rtcp_packet_sdes_next_item (&packet);
j++;
}
more_chunks = gst_rtcp_packet_sdes_next_chunk (&packet);
i++;
}
break;
}
case GST_RTCP_TYPE_BYE:
{
guint count, i;
gchar *reason;
reason = gst_rtcp_packet_bye_get_reason (&packet);
GST_DEBUG_OBJECT (src, "got BYE packet (reason: %s)",
GST_STR_NULL (reason));
g_free (reason);
count = gst_rtcp_packet_bye_get_ssrc_count (&packet);
for (i = 0; i < count; i++) {
guint32 ssrc;
ssrc = gst_rtcp_packet_bye_get_nth_ssrc (&packet, i);
GST_DEBUG_OBJECT (src, "SSRC: %08x", ssrc);
}
break;
}
case GST_RTCP_TYPE_APP:
GST_DEBUG_OBJECT (src, "got APP packet");
break;
default:
GST_WARNING_OBJECT (src, "got unknown RTCP packet");
break;
}
more = gst_rtcp_packet_move_to_next (&packet);
}
gst_buffer_unref (buffer);
return GST_FLOW_OK;
bad_packet:
{
GST_WARNING_OBJECT (src, "got invalid RTCP packet");
gst_buffer_unref (buffer);
return GST_FLOW_OK;
}
#else
gst_buffer_unref (buffer);
return GST_FLOW_OK;
#endif
}
static GstFlowReturn
gst_rtp_dec_chain_rtp (GstPad * pad, GstObject * parent, GstBuffer * buffer)
{
GstFlowReturn res;
GstRTPDec *rtpdec;
GstRTPDecSession *session;
guint32 ssrc;
guint8 pt;
GstRTPBuffer rtp = { NULL, };
rtpdec = GST_RTP_DEC (parent);
GST_DEBUG_OBJECT (rtpdec, "got rtp packet");
if (!gst_rtp_buffer_map (buffer, GST_MAP_READ, &rtp))
goto bad_packet;
ssrc = gst_rtp_buffer_get_ssrc (&rtp);
pt = gst_rtp_buffer_get_payload_type (&rtp);
gst_rtp_buffer_unmap (&rtp);
GST_DEBUG_OBJECT (rtpdec, "SSRC %08x, PT %d", ssrc, pt);
/* find session */
session = gst_pad_get_element_private (pad);
/* see if we have the pad */
if (!session->active) {
GstPadTemplate *templ;
GstElementClass *klass;
gchar *name;
GstCaps *caps;
GValue ret = { 0 };
GValue args[3] = { {0}
, {0}
, {0}
};
GST_DEBUG_OBJECT (rtpdec, "creating stream");
session->ssrc = ssrc;
session->pt = pt;
/* get pt map */
g_value_init (&args[0], GST_TYPE_ELEMENT);
g_value_set_object (&args[0], rtpdec);
g_value_init (&args[1], G_TYPE_UINT);
g_value_set_uint (&args[1], session->id);
g_value_init (&args[2], G_TYPE_UINT);
g_value_set_uint (&args[2], pt);
g_value_init (&ret, GST_TYPE_CAPS);
g_value_set_boxed (&ret, NULL);
g_signal_emitv (args, gst_rtp_dec_signals[SIGNAL_REQUEST_PT_MAP], 0, &ret);
caps = (GstCaps *) g_value_get_boxed (&ret);
name = g_strdup_printf ("recv_rtp_src_%u_%u_%u", session->id, ssrc, pt);
klass = GST_ELEMENT_GET_CLASS (rtpdec);
templ = gst_element_class_get_pad_template (klass, "recv_rtp_src_%u_%u_%u");
session->recv_rtp_src = gst_pad_new_from_template (templ, name);
g_free (name);
gst_pad_set_caps (session->recv_rtp_src, caps);
gst_pad_set_element_private (session->recv_rtp_src, session);
gst_pad_set_query_function (session->recv_rtp_src, gst_rtp_dec_query_src);
gst_pad_set_active (session->recv_rtp_src, TRUE);
gst_element_add_pad (GST_ELEMENT_CAST (rtpdec), session->recv_rtp_src);
session->active = TRUE;
}
res = gst_pad_push (session->recv_rtp_src, buffer);
return res;
bad_packet:
{
GST_ELEMENT_WARNING (rtpdec, STREAM, DECODE, (NULL),
("RTP packet did not validate, dropping"));
gst_buffer_unref (buffer);
return GST_FLOW_OK;
}
}