static GstStateChangeReturn
gst_rtp_mux_change_state (GstElement * element, GstStateChange transition)
{
GstRTPMux *rtp_mux;
GstStateChangeReturn ret;
rtp_mux = GST_RTP_MUX (element);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_rtp_mux_ready_to_paused (rtp_mux);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (gst_rtp_mux_parent_class)->change_state (element,
transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
g_clear_object (&rtp_mux->last_pad);
break;
default:
break;
}
return ret;
}
static void
gst_rtp_mux_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
{
GstRTPMux *rtp_mux;
rtp_mux = GST_RTP_MUX (object);
switch (prop_id) {
case PROP_TIMESTAMP_OFFSET:
rtp_mux->ts_offset = g_value_get_int (value);
break;
case PROP_SEQNUM_OFFSET:
rtp_mux->seqnum_offset = g_value_get_int (value);
break;
case PROP_SSRC:
GST_OBJECT_LOCK (rtp_mux);
rtp_mux->ssrc = g_value_get_uint (value);
rtp_mux->current_ssrc = rtp_mux->ssrc;
rtp_mux->have_ssrc = TRUE;
rtp_mux->ssrc_random = FALSE;
GST_OBJECT_UNLOCK (rtp_mux);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_rtp_mux_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
GstRTPMux *mux = GST_RTP_MUX (parent);
gboolean res = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CAPS:
{
GstCaps *filter, *caps;
gst_query_parse_caps (query, &filter);
GST_LOG_OBJECT (pad, "Received caps-query with filter-caps: %"
GST_PTR_FORMAT, filter);
caps = gst_rtp_mux_getcaps (pad, mux, filter);
gst_query_set_caps_result (query, caps);
GST_LOG_OBJECT (mux, "Answering caps-query with caps: %"
GST_PTR_FORMAT, caps);
gst_caps_unref (caps);
res = TRUE;
break;
}
default:
res = gst_pad_query_default (pad, parent, query);
break;
}
return res;
}
static void
gst_rtp_mux_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec)
{
GstRTPMux *rtp_mux;
rtp_mux = GST_RTP_MUX (object);
GST_OBJECT_LOCK (rtp_mux);
switch (prop_id) {
case PROP_TIMESTAMP_OFFSET:
g_value_set_int (value, rtp_mux->ts_offset);
break;
case PROP_SEQNUM_OFFSET:
g_value_set_int (value, rtp_mux->seqnum_offset);
break;
case PROP_SEQNUM:
g_value_set_uint (value, rtp_mux->seqnum);
break;
case PROP_SSRC:
g_value_set_uint (value, rtp_mux->ssrc);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
GST_OBJECT_UNLOCK (rtp_mux);
}
static GstPad *
gst_rtp_mux_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * req_name, const GstCaps * caps)
{
GstRTPMux *rtp_mux;
GstPad *newpad;
g_return_val_if_fail (templ != NULL, NULL);
g_return_val_if_fail (GST_IS_RTP_MUX (element), NULL);
rtp_mux = GST_RTP_MUX (element);
if (templ->direction != GST_PAD_SINK) {
GST_WARNING_OBJECT (rtp_mux, "request pad that is not a SINK pad");
return NULL;
}
newpad = gst_pad_new_from_template (templ, req_name);
if (newpad)
gst_rtp_mux_setup_sinkpad (rtp_mux, newpad);
else
GST_WARNING_OBJECT (rtp_mux, "failed to create request pad");
return newpad;
}
static gboolean
gst_rtp_mux_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
GstRTPMux *mux = GST_RTP_MUX (parent);
gboolean res = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CAPS:
{
GstCaps *filter, *caps;
gst_query_parse_caps (query, &filter);
caps = gst_rtp_mux_getcaps (pad, mux, filter);
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
res = TRUE;
break;
}
default:
res = gst_pad_query_default (pad, parent, query);
break;
}
return res;
}
static gboolean
gst_rtp_mux_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstRTPMux *mux = GST_RTP_MUX (parent);
gboolean is_pad;
gboolean ret;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:
{
GstCaps *caps;
gst_event_parse_caps (event, &caps);
GST_LOG_OBJECT (pad, "Received caps-event with caps: %"
GST_PTR_FORMAT, caps);
ret = gst_rtp_mux_setcaps (pad, mux, caps);
gst_event_unref (event);
return ret;
}
case GST_EVENT_FLUSH_STOP:
{
GST_OBJECT_LOCK (mux);
mux->last_stop = GST_CLOCK_TIME_NONE;
GST_OBJECT_UNLOCK (mux);
break;
}
case GST_EVENT_SEGMENT:
{
GstRTPMuxPadPrivate *padpriv;
GST_OBJECT_LOCK (mux);
padpriv = gst_pad_get_element_private (pad);
if (padpriv) {
gst_event_copy_segment (event, &padpriv->segment);
}
GST_OBJECT_UNLOCK (mux);
break;
}
default:
break;
}
GST_OBJECT_LOCK (mux);
is_pad = (pad == mux->last_pad);
GST_OBJECT_UNLOCK (mux);
if (is_pad) {
return gst_pad_push_event (mux->srcpad, event);
} else {
gst_event_unref (event);
return TRUE;
}
}
static gboolean
gst_rtp_mux_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstRTPMux *rtp_mux = GST_RTP_MUX (parent);
GstRTPMuxClass *klass;
gboolean ret;
klass = GST_RTP_MUX_GET_CLASS (rtp_mux);
ret = klass->src_event (rtp_mux, event);
return ret;
}
static void
gst_rtp_mux_dispose (GObject * object)
{
GstRTPMux *rtp_mux = GST_RTP_MUX (object);
GList *item;
g_clear_object (&rtp_mux->last_pad);
restart:
for (item = GST_ELEMENT_PADS (object); item; item = g_list_next (item)) {
GstPad *pad = GST_PAD (item->data);
if (GST_PAD_IS_SINK (pad)) {
gst_element_release_request_pad (GST_ELEMENT (object), pad);
goto restart;
}
}
G_OBJECT_CLASS (gst_rtp_mux_parent_class)->dispose (object);
}
static GstFlowReturn
gst_rtp_mux_chain_list (GstPad * pad, GstObject * parent,
GstBufferList * bufferlist)
{
GstRTPMux *rtp_mux;
GstFlowReturn ret;
GstRTPMuxPadPrivate *padpriv;
struct BufferListData bd;
rtp_mux = GST_RTP_MUX (parent);
GST_OBJECT_LOCK (rtp_mux);
padpriv = gst_pad_get_element_private (pad);
if (!padpriv) {
GST_OBJECT_UNLOCK (rtp_mux);
ret = GST_FLOW_NOT_LINKED;
gst_buffer_list_unref (bufferlist);
goto out;
}
bd.rtp_mux = rtp_mux;
bd.padpriv = padpriv;
bd.drop = FALSE;
bufferlist = gst_buffer_list_make_writable (bufferlist);
gst_buffer_list_foreach (bufferlist, process_list_item, &bd);
GST_OBJECT_UNLOCK (rtp_mux);
if (bd.drop) {
gst_buffer_list_unref (bufferlist);
ret = GST_FLOW_OK;
} else {
ret = gst_pad_push_list (rtp_mux->srcpad, bufferlist);
}
out:
return ret;
}
static GstFlowReturn
gst_rtp_mux_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
{
GstRTPMux *rtp_mux;
GstFlowReturn ret;
GstRTPMuxPadPrivate *padpriv;
gboolean drop;
gboolean changed = FALSE;
GstRTPBuffer rtpbuffer = GST_RTP_BUFFER_INIT;
rtp_mux = GST_RTP_MUX (parent);
if (gst_pad_check_reconfigure (rtp_mux->srcpad)) {
GstCaps *current_caps = gst_pad_get_current_caps (pad);
if (!gst_rtp_mux_setcaps (pad, rtp_mux, current_caps)) {
ret = GST_FLOW_NOT_NEGOTIATED;
gst_buffer_unref (buffer);
goto out;
}
gst_caps_unref (current_caps);
}
GST_OBJECT_LOCK (rtp_mux);
padpriv = gst_pad_get_element_private (pad);
if (!padpriv) {
GST_OBJECT_UNLOCK (rtp_mux);
gst_buffer_unref (buffer);
return GST_FLOW_NOT_LINKED;
}
buffer = gst_buffer_make_writable (buffer);
if (!gst_rtp_buffer_map (buffer, GST_MAP_READWRITE, &rtpbuffer)) {
GST_OBJECT_UNLOCK (rtp_mux);
gst_buffer_unref (buffer);
GST_ERROR_OBJECT (rtp_mux, "Invalid RTP buffer");
return GST_FLOW_ERROR;
}
drop = !process_buffer_locked (rtp_mux, padpriv, &rtpbuffer);
gst_rtp_buffer_unmap (&rtpbuffer);
if (!drop) {
if (pad != rtp_mux->last_pad) {
changed = TRUE;
g_clear_object (&rtp_mux->last_pad);
rtp_mux->last_pad = g_object_ref (pad);
}
if (GST_BUFFER_DURATION_IS_VALID (buffer) &&
GST_BUFFER_PTS_IS_VALID (buffer))
rtp_mux->last_stop = GST_BUFFER_PTS (buffer) +
GST_BUFFER_DURATION (buffer);
else
rtp_mux->last_stop = GST_CLOCK_TIME_NONE;
}
GST_OBJECT_UNLOCK (rtp_mux);
if (changed)
gst_pad_sticky_events_foreach (pad, resend_events, rtp_mux);
if (drop) {
gst_buffer_unref (buffer);
ret = GST_FLOW_OK;
} else {
ret = gst_pad_push (rtp_mux->srcpad, buffer);
}
out:
return ret;
}
static GstFlowReturn
gst_rtp_mux_chain_list (GstPad * pad, GstObject * parent,
GstBufferList * bufferlist)
{
GstRTPMux *rtp_mux;
GstFlowReturn ret;
GstRTPMuxPadPrivate *padpriv;
gboolean changed = FALSE;
struct BufferListData bd;
rtp_mux = GST_RTP_MUX (parent);
if (gst_pad_check_reconfigure (rtp_mux->srcpad)) {
GstCaps *current_caps = gst_pad_get_current_caps (pad);
if (!gst_rtp_mux_setcaps (pad, rtp_mux, current_caps)) {
ret = GST_FLOW_NOT_NEGOTIATED;
gst_buffer_list_unref (bufferlist);
goto out;
}
gst_caps_unref (current_caps);
}
GST_OBJECT_LOCK (rtp_mux);
padpriv = gst_pad_get_element_private (pad);
if (!padpriv) {
GST_OBJECT_UNLOCK (rtp_mux);
ret = GST_FLOW_NOT_LINKED;
gst_buffer_list_unref (bufferlist);
goto out;
}
bd.rtp_mux = rtp_mux;
bd.padpriv = padpriv;
bd.drop = FALSE;
bufferlist = gst_buffer_list_make_writable (bufferlist);
gst_buffer_list_foreach (bufferlist, process_list_item, &bd);
if (!bd.drop && pad != rtp_mux->last_pad) {
changed = TRUE;
g_clear_object (&rtp_mux->last_pad);
rtp_mux->last_pad = g_object_ref (pad);
}
GST_OBJECT_UNLOCK (rtp_mux);
if (changed)
gst_pad_sticky_events_foreach (pad, resend_events, rtp_mux);
if (bd.drop) {
gst_buffer_list_unref (bufferlist);
ret = GST_FLOW_OK;
} else {
ret = gst_pad_push_list (rtp_mux->srcpad, bufferlist);
}
out:
return ret;
}