mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2025-02-17 11:45:25 +00:00
rtxqueue: add retransmission queue element
This commit is contained in:
Wim Taymans
parent
5fe18ee432
commit
ff825a2919
4 changed files with 343 additions and 0 deletions
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@ -9,6 +9,7 @@ libgstrtpmanager_la_SOURCES = gstrtpmanager.c \
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gstrtpjitterbuffer.c \
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gstrtpmux.c \
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gstrtpptdemux.c \
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gstrtprtxqueue.c \
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gstrtpssrcdemux.c \
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rtpjitterbuffer.c \
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rtpsession.c \
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@ -22,6 +23,7 @@ noinst_HEADERS = gstrtpbin.h \
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gstrtpmux.h \
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gstrtpptdemux.h \
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gstrtpssrcdemux.h \
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gstrtprtxqueue.h \
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rtpjitterbuffer.h \
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rtpsession.h \
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rtpsource.h \
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@ -25,6 +25,7 @@
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#include "gstrtpjitterbuffer.h"
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#include "gstrtpptdemux.h"
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#include "gstrtpsession.h"
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#include "gstrtprtxqueue.h"
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#include "gstrtpssrcdemux.h"
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#include "gstrtpdtmfmux.h"
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#include "gstrtpmux.h"
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@ -47,6 +48,10 @@ plugin_init (GstPlugin * plugin)
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GST_TYPE_RTP_SESSION))
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return FALSE;
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if (!gst_element_register (plugin, "rtprtxqueue", GST_RANK_NONE,
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GST_TYPE_RTP_RTX_QUEUE))
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return FALSE;
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if (!gst_element_register (plugin, "rtpssrcdemux", GST_RANK_NONE,
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GST_TYPE_RTP_SSRC_DEMUX))
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return FALSE;
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268
gst/rtpmanager/gstrtprtxqueue.c
Normal file
268
gst/rtpmanager/gstrtprtxqueue.c
Normal file
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@ -0,0 +1,268 @@
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/* RTP Retransmission queue element for GStreamer
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*
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* gstrtprtxqueue.c:
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*
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* Copyright (C) 2013 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:element-rtprtxqueue
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include <gst/rtp/gstrtpbuffer.h>
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#include <string.h>
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#include "gstrtprtxqueue.h"
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GST_DEBUG_CATEGORY_STATIC (gst_rtp_rtx_queue_debug);
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#define GST_CAT_DEFAULT gst_rtp_rtx_queue_debug
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enum
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{
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PROP_0,
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PROP_LAST
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};
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static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("application/x-rtp")
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);
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static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("application/x-rtp")
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);
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static gboolean gst_rtp_rtx_queue_src_event (GstPad * pad, GstObject * parent,
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GstEvent * event);
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static GstFlowReturn gst_rtp_rtx_queue_chain (GstPad * pad, GstObject * parent,
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GstBuffer * buffer);
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static GstStateChangeReturn gst_rtp_rtx_queue_change_state (GstElement *
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element, GstStateChange transition);
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static void gst_rtp_rtx_queue_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_rtp_rtx_queue_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_rtp_rtx_queue_finalize (GObject * object);
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G_DEFINE_TYPE (GstRTPRtxQueue, gst_rtp_rtx_queue, GST_TYPE_ELEMENT);
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static void
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gst_rtp_rtx_queue_class_init (GstRTPRtxQueueClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&src_factory));
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&sink_factory));
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gst_element_class_set_static_metadata (gstelement_class,
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"RTP Retransmission Queue", "Codec",
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"Keep RTP packets in a queue for retransmission",
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"Wim Taymans <wim.taymans@gmail.com>");
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gobject_class->get_property = gst_rtp_rtx_queue_get_property;
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gobject_class->set_property = gst_rtp_rtx_queue_set_property;
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gobject_class->finalize = gst_rtp_rtx_queue_finalize;
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gstelement_class->change_state =
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GST_DEBUG_FUNCPTR (gst_rtp_rtx_queue_change_state);
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}
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static void
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gst_rtp_rtx_queue_finalize (GObject * object)
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{
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GstRTPRtxQueue *rtx = GST_RTP_RTX_QUEUE (object);
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g_queue_free (rtx->queue);
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G_OBJECT_CLASS (gst_rtp_rtx_queue_parent_class)->finalize (object);
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}
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static void
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gst_rtp_rtx_queue_init (GstRTPRtxQueue * rtx)
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{
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GstElementClass *klass = GST_ELEMENT_GET_CLASS (rtx);
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rtx->srcpad =
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gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
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"src"), "src");
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GST_PAD_SET_PROXY_CAPS (rtx->srcpad);
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GST_PAD_SET_PROXY_ALLOCATION (rtx->srcpad);
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gst_pad_set_event_function (rtx->srcpad,
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GST_DEBUG_FUNCPTR (gst_rtp_rtx_queue_src_event));
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gst_element_add_pad (GST_ELEMENT (rtx), rtx->srcpad);
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rtx->sinkpad =
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gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
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"sink"), "sink");
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GST_PAD_SET_PROXY_CAPS (rtx->sinkpad);
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GST_PAD_SET_PROXY_ALLOCATION (rtx->sinkpad);
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gst_pad_set_chain_function (rtx->sinkpad,
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GST_DEBUG_FUNCPTR (gst_rtp_rtx_queue_chain));
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gst_element_add_pad (GST_ELEMENT (rtx), rtx->sinkpad);
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rtx->queue = g_queue_new ();
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}
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typedef struct
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{
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GstRTPRtxQueue *rtx;
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guint seqnum;
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} RTXData;
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static void
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push_seqnum (GstBuffer * buffer, RTXData * data)
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{
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GstRTPRtxQueue *rtx = data->rtx;
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GstRTPBuffer rtpbuffer = GST_RTP_BUFFER_INIT;
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guint16 seqnum;
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if (!gst_rtp_buffer_map (buffer, GST_MAP_READ, &rtpbuffer))
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return;
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seqnum = gst_rtp_buffer_get_seq (&rtpbuffer);
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gst_rtp_buffer_unmap (&rtpbuffer);
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if (seqnum == data->seqnum) {
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gst_pad_push (rtx->srcpad, gst_buffer_ref (buffer));
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}
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}
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static gboolean
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gst_rtp_rtx_queue_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
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{
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GstRTPRtxQueue *rtx = GST_RTP_RTX_QUEUE (parent);
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gboolean res;
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_CUSTOM_UPSTREAM:
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{
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const GstStructure *s;
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s = gst_event_get_structure (event);
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if (gst_structure_has_name (s, "GstRTPRetransmissionRequest")) {
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guint seqnum;
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RTXData data;
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if (!gst_structure_get_uint (s, "seqnum", &seqnum))
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seqnum = -1;
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data.rtx = rtx;
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data.seqnum = seqnum;
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g_queue_foreach (rtx->queue, (GFunc) push_seqnum, &data);
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gst_event_unref (event);
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res = TRUE;
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} else {
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res = gst_pad_event_default (pad, parent, event);
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}
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break;
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}
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default:
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res = gst_pad_event_default (pad, parent, event);
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break;
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}
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return res;
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}
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static GstFlowReturn
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gst_rtp_rtx_queue_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
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{
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GstRTPRtxQueue *rtx;
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GstFlowReturn ret;
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rtx = GST_RTP_RTX_QUEUE (parent);
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g_queue_push_head (rtx->queue, gst_buffer_ref (buffer));
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while (g_queue_get_length (rtx->queue) > 100) {
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gst_buffer_unref (g_queue_pop_tail (rtx->queue));
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}
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ret = gst_pad_push (rtx->srcpad, buffer);
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return ret;
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}
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static void
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gst_rtp_rtx_queue_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec)
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{
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switch (prop_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_rtp_rtx_queue_set_property (GObject * object,
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guint prop_id, const GValue * value, GParamSpec * pspec)
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{
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switch (prop_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static GstStateChangeReturn
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gst_rtp_rtx_queue_change_state (GstElement * element, GstStateChange transition)
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{
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GstStateChangeReturn ret;
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switch (transition) {
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default:
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break;
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}
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ret =
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GST_ELEMENT_CLASS (gst_rtp_rtx_queue_parent_class)->change_state (element,
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transition);
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switch (transition) {
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default:
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break;
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}
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return ret;
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}
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gboolean
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gst_rtp_rtx_queue_plugin_init (GstPlugin * plugin)
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{
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GST_DEBUG_CATEGORY_INIT (gst_rtp_rtx_queue_debug, "rtprtxqueue", 0,
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"rtp retransmission queue");
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return gst_element_register (plugin, "rtprtxqueue", GST_RANK_NONE,
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GST_TYPE_RTP_RTX_QUEUE);
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}
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68
gst/rtpmanager/gstrtprtxqueue.h
Normal file
68
gst/rtpmanager/gstrtprtxqueue.h
Normal file
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@ -0,0 +1,68 @@
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/* RTP muxer element for GStreamer
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*
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* gstrtpmux.h:
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*
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* Copyright (C) <2007> Nokia Corporation.
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* Contact: Zeeshan Ali <zeeshan.ali@nokia.com>
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000,2005 Wim Taymans <wim@fluendo.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_RTP_RTX_QUEUE_H__
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#define __GST_RTP_RTX_QUEUE_H__
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#include <gst/gst.h>
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#include <gst/rtp/gstrtpbuffer.h>
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G_BEGIN_DECLS
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#define GST_TYPE_RTP_RTX_QUEUE (gst_rtp_rtx_queue_get_type())
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#define GST_RTP_RTX_QUEUE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_RTX_QUEUE, GstRTPRtxQueue))
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#define GST_RTP_RTX_QUEUE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_RTX_QUEUE, GstRTPRtxQueueClass))
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#define GST_RTP_RTX_QUEUE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_RTP_RTX_QUEUE, GstRTPRtxQueueClass))
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#define GST_IS_RTP_RTX_QUEUE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_RTX_QUEUE))
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#define GST_IS_RTP_RTX_QUEUE_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_RTX_QUEUE))
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typedef struct _GstRTPRtxQueue GstRTPRtxQueue;
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typedef struct _GstRTPRtxQueueClass GstRTPRtxQueueClass;
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/**
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* GstRTPRtxQueue:
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*
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* The opaque #GstRTPRtxQueue structure.
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*/
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struct _GstRTPRtxQueue
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{
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GstElement element;
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/* pad */
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GstPad *sinkpad;
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GstPad *srcpad;
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GQueue *queue;
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};
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struct _GstRTPRtxQueueClass
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{
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GstElementClass parent_class;
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};
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GType gst_rtp_rtx_queue_get_type (void);
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gboolean gst_rtp_rtx_queue_plugin_init (GstPlugin * plugin);
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G_END_DECLS
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#endif /* __GST_RTP_RTX_QUEUE_H__ */
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