mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-03 21:25:54 +00:00
98acb3260d
This patchs add support for configuring the bonding method used. There is two method specified - redundant: All the RTP packets are replicated - combined: RTP packet are evenly distributed over each links Additionally, an application can set the "dispatcher" property in order to implement custom dispatching method. Whenever the "dispatcher" property is set, "bonding-method" property will be ignored.
136 lines
3.8 KiB
C
136 lines
3.8 KiB
C
/* GStreamer Round Robin
|
|
* Copyright (C) 2019 Net Insight AB
|
|
* Author: Nicolas Dufresne <nicolas.dufresne@collabora.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
/**
|
|
* SECTION:element-roundrobin
|
|
* @title: roundrobin
|
|
*
|
|
* This is a generic element that will distribute equally incoming
|
|
* buffers over multiple src pads. This is the opposite of tee
|
|
* element, which duplicates buffers over all pads. This element
|
|
* can be used to distrute load across multiple branches when the buffer
|
|
* can be processed indepently.
|
|
*/
|
|
|
|
#include "gstroundrobin.h"
|
|
|
|
GST_DEBUG_CATEGORY_STATIC (gst_round_robin_debug);
|
|
#define GST_CAT_DEFAULT gst_round_robin_debug
|
|
|
|
static GstStaticPadTemplate sink_templ = GST_STATIC_PAD_TEMPLATE ("sink",
|
|
GST_PAD_SINK,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS ("ANY"));
|
|
|
|
static GstStaticPadTemplate src_templ = GST_STATIC_PAD_TEMPLATE ("src_%d",
|
|
GST_PAD_SRC,
|
|
GST_PAD_REQUEST,
|
|
GST_STATIC_CAPS ("ANY"));
|
|
|
|
struct _GstRoundRobin
|
|
{
|
|
GstElement parent;
|
|
gint index;
|
|
};
|
|
|
|
G_DEFINE_TYPE_WITH_CODE (GstRoundRobin, gst_round_robin,
|
|
GST_TYPE_ELEMENT, GST_DEBUG_CATEGORY_INIT (gst_round_robin_debug,
|
|
"roundrobin", 0, "Round Robin"));
|
|
|
|
static GstFlowReturn
|
|
gst_round_robin_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
|
|
{
|
|
GstRoundRobin *disp = (GstRoundRobin *) parent;
|
|
GstElement *elem = (GstElement *) parent;
|
|
GstPad *src_pad = NULL;
|
|
GstFlowReturn ret;
|
|
|
|
GST_OBJECT_LOCK (disp);
|
|
if (disp->index >= elem->numsrcpads)
|
|
disp->index = 0;
|
|
|
|
src_pad = g_list_nth_data (elem->srcpads, disp->index);
|
|
|
|
if (src_pad) {
|
|
gst_object_ref (src_pad);
|
|
disp->index += 1;
|
|
}
|
|
GST_OBJECT_UNLOCK (disp);
|
|
|
|
if (!src_pad)
|
|
/* no pad, that's fine */
|
|
return GST_FLOW_OK;
|
|
|
|
ret = gst_pad_push (src_pad, buffer);
|
|
gst_object_unref (src_pad);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstPad *
|
|
gst_round_robin_request_pad (GstElement * element, GstPadTemplate * templ,
|
|
const gchar * name, const GstCaps * caps)
|
|
{
|
|
GstPad *pad;
|
|
|
|
pad = gst_element_get_static_pad (element, name);
|
|
if (pad) {
|
|
gst_object_unref (pad);
|
|
return NULL;
|
|
}
|
|
|
|
pad = gst_pad_new_from_static_template (&src_templ, name);
|
|
gst_element_add_pad (element, pad);
|
|
|
|
return pad;
|
|
}
|
|
|
|
static void
|
|
gst_round_robin_init (GstRoundRobin * disp)
|
|
{
|
|
GstPad *pad;
|
|
|
|
gst_element_create_all_pads (GST_ELEMENT (disp));
|
|
pad = GST_PAD (GST_ELEMENT (disp)->sinkpads->data);
|
|
|
|
GST_PAD_SET_PROXY_CAPS (pad);
|
|
GST_PAD_SET_PROXY_SCHEDULING (pad);
|
|
/* do not proxy allocation, it requires special handling like tee does */
|
|
|
|
gst_pad_set_chain_function (pad, GST_DEBUG_FUNCPTR (gst_round_robin_chain));
|
|
}
|
|
|
|
static void
|
|
gst_round_robin_class_init (GstRoundRobinClass * klass)
|
|
{
|
|
GstElementClass *element_class = (GstElementClass *) klass;
|
|
|
|
gst_element_class_set_metadata (element_class,
|
|
"Round Robin", "Source/Network",
|
|
"A round robin dispatcher element.",
|
|
"Nicolas Dufresne <nicolas.dufresne@collabora.com");
|
|
|
|
gst_element_class_add_static_pad_template (element_class, &sink_templ);
|
|
gst_element_class_add_static_pad_template (element_class, &src_templ);
|
|
|
|
element_class->request_new_pad =
|
|
GST_DEBUG_FUNCPTR (gst_round_robin_request_pad);
|
|
}
|