EXPORT_C
#endif
void
gst_rtp_buffer_list_set_ssrc (GstBufferList * list, guint32 ssrc)
{
gst_buffer_list_foreach (list, (GstBufferListFunc) set_ssrc_header, &ssrc);
}
/**
* gst_rtp_buffer_list_set_payload_type:
* @list: the buffer list
* @payload_type: the new type
*
* Set the payload type of each RTP packet in @list to @payload_type.
*
* Since: 0.10.24
*/
void
gst_rtp_buffer_list_set_payload_type (GstBufferList * list, guint8 payload_type)
{
g_return_if_fail (payload_type < 0x80);
gst_buffer_list_foreach (list, (GstBufferListFunc) set_pt_header,
&payload_type);
}
EXPORT_C
#endif
void
gst_rtp_buffer_list_set_timestamp (GstBufferList * list, guint32 timestamp)
{
gst_buffer_list_foreach (list, (GstBufferListFunc) set_timestamp_header,
×tamp);
}
EXPORT_C
#endif
guint16
gst_rtp_buffer_list_set_seq (GstBufferList * list, guint16 seq)
{
gst_buffer_list_foreach (list, (GstBufferListFunc) set_seq_header, &seq);
return seq;
}
/* Our assumption for now is that the buffers in a buffer list should always
* end up in the same file. If someone wants different behaviour, they'll just
* have to add a property for that. */
static GstFlowReturn
gst_multi_file_sink_render_list (GstBaseSink * sink, GstBufferList * list)
{
GstBuffer *buf;
guint size = 0;
gst_buffer_list_foreach (list, buffer_list_calc_size, &size);
GST_LOG_OBJECT (sink, "total size of buffer list %p: %u", list, size);
/* copy all buffers in the list into one single buffer, so we can use
* the normal render function (FIXME: optimise to avoid the memcpy) */
buf = gst_buffer_new ();
gst_buffer_list_foreach (list, buffer_list_copy_data, buf);
g_assert (gst_buffer_get_size (buf) == size);
gst_multi_file_sink_render (sink, buf);
gst_buffer_unref (buf);
return GST_FLOW_OK;
}
static void
do_push_buffer_list_pre (GstStatsTracer * self, guint64 ts, GstPad * this_pad,
GstBufferList * list)
{
GstPadStats *this_pad_stats = get_pad_stats (self, this_pad);
GstPad *that_pad = GST_PAD_PEER (this_pad);
GstPadStats *that_pad_stats = get_pad_stats (self, that_pad);
DoPushBufferListArgs args = { self, this_pad, this_pad_stats, that_pad,
that_pad_stats, ts
};
gst_buffer_list_foreach (list, do_push_buffer_list_item, &args);
}
static GstPadProbeReturn
process_buffer_probe_cb (GstPad * pad, GstPadProbeInfo * info,
gpointer user_data)
{
if (GST_PAD_PROBE_INFO_TYPE (info) & GST_PAD_PROBE_TYPE_BUFFER) {
GstBuffer *buffer = GST_PAD_PROBE_INFO_BUFFER (info);
process_buffer (buffer, user_data);
} else if (GST_PAD_PROBE_INFO_TYPE (info) & GST_PAD_PROBE_TYPE_BUFFER_LIST) {
GstBufferList *list = GST_PAD_PROBE_INFO_BUFFER_LIST (info);
gst_buffer_list_foreach (list, process_buffer_list_cb, user_data);
}
return GST_PAD_PROBE_OK;
}
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_base_depayload_prepare_push (GstRTPBaseDepayload * filter,
gboolean is_list, gpointer obj)
{
if (is_list) {
GstBufferList **blist = obj;
gst_buffer_list_foreach (*blist, (GstBufferListFunc) set_headers, filter);
} else {
GstBuffer **buf = obj;
set_headers (buf, 0, filter);
}
/* if this is the first buffer send a NEWSEGMENT */
if (G_UNLIKELY (filter->priv->segment_event)) {
gst_pad_push_event (filter->srcpad, filter->priv->segment_event);
filter->priv->segment_event = NULL;
GST_DEBUG_OBJECT (filter, "Pushed newsegment event on this first buffer");
}
return GST_FLOW_OK;
}
static GstPadProbeReturn
kms_av_muxer_injector_probe (GstPad * pad, GstPadProbeInfo * info,
gpointer self)
{
GstElement *elem;
GstPadProbeReturn ret = GST_PAD_PROBE_OK;
if (info->type & GST_PAD_PROBE_TYPE_BLOCK) {
return GST_PAD_PROBE_PASS;
}
elem = gst_pad_get_parent_element (pad);
g_return_val_if_fail (elem != NULL, GST_PAD_PROBE_OK);
if (info->type & GST_PAD_PROBE_TYPE_BUFFER_LIST) {
GstBufferList *list = GST_PAD_PROBE_INFO_BUFFER_LIST (info);
BufferListItData itData;
itData.self = self;
itData.elem = elem;
if (G_UNLIKELY (!gst_buffer_list_foreach (list,
kms_av_muxer_injector_probe_it, &itData))) {
ret = GST_PAD_PROBE_DROP;
}
} else if (info->type & GST_PAD_PROBE_TYPE_BUFFER) {
GstBuffer **buffer = (GstBuffer **) & info->data;
if (G_UNLIKELY (!kms_av_muxer_injector (self, elem, buffer))) {
ret = GST_PAD_PROBE_DROP;
}
}
g_object_unref (elem);
return ret;
}
static GstFlowReturn
sink_chain_list (GstPad * pad, GstObject * parent, GstBufferList * list)
{
GstDtlsDec *self = GST_DTLS_DEC (parent);
GstFlowReturn ret = GST_FLOW_OK;
GstPad *other_pad;
list = gst_buffer_list_make_writable (list);
gst_buffer_list_foreach (list, process_buffer_from_list, self);
if (gst_buffer_list_length (list) == 0) {
GST_DEBUG_OBJECT (self, "Not produced any buffers");
gst_buffer_list_unref (list);
return GST_FLOW_OK;
}
g_mutex_lock (&self->src_mutex);
other_pad = self->src;
if (other_pad)
gst_object_ref (other_pad);
g_mutex_unlock (&self->src_mutex);
if (other_pad) {
GST_LOG_OBJECT (self, "decoded buffer list with length %u, pushing",
gst_buffer_list_length (list));
ret = gst_pad_push_list (other_pad, list);
gst_object_unref (other_pad);
} else {
GST_LOG_OBJECT (self, "dropped buffer list with length %d, not linked",
gst_buffer_list_length (list));
gst_buffer_list_unref (list);
}
return ret;
}
/* Updates the SSRC, payload type, seqnum and timestamp of the RTP buffer
* before the buffer is pushed. */
static GstFlowReturn
gst_rtp_base_payload_prepare_push (GstRTPBasePayload * payload,
gpointer obj, gboolean is_list)
{
GstRTPBasePayloadPrivate *priv;
HeaderData data;
if (payload->clock_rate == 0)
goto no_rate;
priv = payload->priv;
/* update first, so that the property is set to the last
* seqnum pushed */
payload->seqnum = priv->next_seqnum;
/* fill in the fields we want to set on all headers */
data.payload = payload;
data.seqnum = payload->seqnum;
data.ssrc = payload->current_ssrc;
data.pt = payload->pt;
/* find the first buffer with a timestamp */
if (is_list) {
data.dts = -1;
data.pts = -1;
data.offset = GST_BUFFER_OFFSET_NONE;
gst_buffer_list_foreach (GST_BUFFER_LIST_CAST (obj), find_timestamp, &data);
} else {
data.dts = GST_BUFFER_DTS (GST_BUFFER_CAST (obj));
data.pts = GST_BUFFER_PTS (GST_BUFFER_CAST (obj));
data.offset = GST_BUFFER_OFFSET (GST_BUFFER_CAST (obj));
}
/* convert to RTP time */
if (priv->perfect_rtptime && data.offset != GST_BUFFER_OFFSET_NONE &&
priv->base_offset != GST_BUFFER_OFFSET_NONE) {
/* if we have an offset, use that for making an RTP timestamp */
data.rtptime = payload->ts_base + priv->base_rtime +
data.offset - priv->base_offset;
GST_LOG_OBJECT (payload,
"Using offset %" G_GUINT64_FORMAT " for RTP timestamp", data.offset);
} else if (GST_CLOCK_TIME_IS_VALID (data.pts)) {
gint64 rtime;
/* no offset, use the gstreamer pts */
rtime = gst_segment_to_running_time (&payload->segment, GST_FORMAT_TIME,
data.pts);
if (rtime == -1) {
GST_LOG_OBJECT (payload, "Clipped pts, using base RTP timestamp");
rtime = 0;
} else {
GST_LOG_OBJECT (payload,
"Using running_time %" GST_TIME_FORMAT " for RTP timestamp",
GST_TIME_ARGS (rtime));
rtime =
gst_util_uint64_scale_int (rtime, payload->clock_rate, GST_SECOND);
priv->base_offset = data.offset;
priv->base_rtime = rtime;
}
/* add running_time in clock-rate units to the base timestamp */
data.rtptime = payload->ts_base + rtime;
} else {
GST_LOG_OBJECT (payload,
"Using previous RTP timestamp %" G_GUINT32_FORMAT, payload->timestamp);
/* no timestamp to convert, take previous timestamp */
data.rtptime = payload->timestamp;
}
/* set ssrc, payload type, seq number, caps and rtptime */
if (is_list) {
gst_buffer_list_foreach (GST_BUFFER_LIST_CAST (obj), set_headers, &data);
} else {
GstBuffer *buf = GST_BUFFER_CAST (obj);
set_headers (&buf, 0, &data);
}
priv->next_seqnum = data.seqnum;
payload->timestamp = data.rtptime;
GST_LOG_OBJECT (payload, "Preparing to push packet with size %"
G_GSIZE_FORMAT ", seq=%d, rtptime=%u, pts %" GST_TIME_FORMAT,
(is_list) ? -1 : gst_buffer_get_size (GST_BUFFER (obj)),
payload->seqnum, data.rtptime, GST_TIME_ARGS (data.pts));
if (g_atomic_int_compare_and_exchange (&payload->
priv->notified_first_timestamp, 1, 0)) {
g_object_notify (G_OBJECT (payload), "timestamp");
g_object_notify (G_OBJECT (payload), "seqnum");
}
return GST_FLOW_OK;
/* ERRORS */
no_rate:
{
GST_ELEMENT_ERROR (payload, STREAM, NOT_IMPLEMENTED, (NULL),
("subclass did not specify clock-rate"));
return GST_FLOW_ERROR;
}
}
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;
}
