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rtp: Add rtppassthroughpay element

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This elements pass RTP packets along unchanged and appear as a RTP
payloader element.

This is useful, for example when using the gstreamer-rtsp-server
library, in the case where you are receiving RTP packets from a
different source and want to serve them over RTSP. Since the
gst-rtsp-server library expect the element marked as payX to be a RTP
payloader element and assumes certain properties are available.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5204>
This commit is contained in:
Jonas K Danielsson 2023-08-21 14:37:23 +02:00 committed by GStreamer Marge Bot
parent 3981257bc5
commit 749652e60c
8 changed files with 787 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

123
subprojects/gst-plugins-good/docs/gst_plugins_cache.json
View file

@ -15863,6 +15863,129 @@
},
"rank": "primary"
},
"rtppassthroughpay": {
"author": "Sebastian Dröge <sebastian@centricular.com>, Jonas Danielsson <jonas.danielsson@spiideo.com>",
"description": "Passes through RTP packets",
"hierarchy": [
"GstRtpPassthroughPay",
"GstElement",
"GstObject",
"GInitiallyUnowned",
"GObject"
],
"klass": "Codec/Payloader/Network/RTP",
"pad-templates": {
"sink": {
"caps": "application/x-rtp:\n payload: [ 0, 127 ]\n clock-rate: [ 1, 2147483647 ]\n",
"direction": "sink",
"presence": "always"
},
"src": {
"caps": "application/x-rtp:\n payload: [ 0, 127 ]\n clock-rate: [ 1, 2147483647 ]\n",
"direction": "src",
"presence": "always"
}
},
"properties": {
"mtu": {
"blurb": "Maximum size of one packet",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "0",
"max": "-1",
"min": "28",
"mutable": "null",
"readable": true,
"type": "guint",
"writable": true
},
"pt": {
"blurb": "The payload type of the packets",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "128",
"max": "128",
"min": "0",
"mutable": "null",
"readable": true,
"type": "guint",
"writable": true
},
"seqnum": {
"blurb": "The RTP sequence number of the last processed packet",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "0",
"max": "65535",
"min": "0",
"mutable": "null",
"readable": true,
"type": "guint",
"writable": false
},
"seqnum-offset": {
"blurb": "Offset to add to all outgoing seqnum (-1 = random)",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "0",
"max": "65535",
"min": "-1",
"mutable": "null",
"readable": true,
"type": "gint",
"writable": true
},
"stats": {
"blurb": "Various statistics",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "application/x-rtp-payload-stats, clock-rate=(uint)0, running-time=(guint64)18446744073709551615, seqnum=(uint)0, timestamp=(uint)0, ssrc=(uint)0, pt=(uint)128, seqnum-offset=(uint)0, timestamp-offset=(uint)0;",
"mutable": "null",
"readable": true,
"type": "GstStructure",
"writable": false
},
"timestamp": {
"blurb": "The RTP timestamp of the last processed packet",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "0",
"max": "-1",
"min": "0",
"mutable": "null",
"readable": true,
"type": "guint",
"writable": false
},
"timestamp-offset": {
"blurb": "Offset to add to all outgoing timestamps (default = random)",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "0",
"max": "-1",
"min": "0",
"mutable": "null",
"readable": true,
"type": "guint",
"writable": true
}
},
"rank": "none"
},
"rtppcmadepay": {
"author": "Edgard Lima <edgard.lima@gmail.com>, Zeeshan Ali <zeenix@gmail.com>",
"description": "Extracts PCMA audio from RTP packets",

1
subprojects/gst-plugins-good/gst/rtp/gstrtp.c
View file

@ -66,6 +66,7 @@ plugin_init (GstPlugin * plugin)
ret |= GST_ELEMENT_REGISTER (rtpmpvpay, plugin);
ret |= GST_ELEMENT_REGISTER (rtpopusdepay, plugin);
ret |= GST_ELEMENT_REGISTER (rtpopuspay, plugin);
ret |= GST_ELEMENT_REGISTER (rtppassthroughpay, plugin);
ret |= GST_ELEMENT_REGISTER (rtph261pay, plugin);
ret |= GST_ELEMENT_REGISTER (rtph261depay, plugin);
ret |= GST_ELEMENT_REGISTER (rtph263ppay, plugin);

1
subprojects/gst-plugins-good/gst/rtp/gstrtpelements.h
View file

@ -66,6 +66,7 @@ GST_ELEMENT_REGISTER_DECLARE (rtpmpvdepay);
GST_ELEMENT_REGISTER_DECLARE (rtpmpvpay);
GST_ELEMENT_REGISTER_DECLARE (rtpopusdepay);
GST_ELEMENT_REGISTER_DECLARE (rtpopuspay);
GST_ELEMENT_REGISTER_DECLARE (rtppassthroughpay);
GST_ELEMENT_REGISTER_DECLARE (rtph261pay);
GST_ELEMENT_REGISTER_DECLARE (rtph261depay);
GST_ELEMENT_REGISTER_DECLARE (rtph263ppay);

467
subprojects/gst-plugins-good/gst/rtp/gstrtppassthroughpay.c Normal file
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@ -0,0 +1,467 @@
/*
* GStreamer
*
* Copyright (C) 2023 Sebastian Dröge <sebastian@centricular.com>
* Copyright (C) 2023 Jonas Danielsson <jonas.danielsson@spiideo.com>
*
* gstrtppassthroughpay.c:
*
* 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.
*/
/**
* SECTION:element-rtppassthroughpay
* @title: rtppassthroughpay
*
* This elements pass RTP packets along unchanged and appear as a RTP
* payloader element to the outside world.
*
* This is useful, for example, in the case where you are receiving RTP
* packets from a different source and want to serve them over RTSP. Since the
* gst-rtsp-server library expect the element marked as `payX` to be a RTP
* payloader element and assumes certain properties are available.
*
* ## Example pipelines
*
* |[
* gst-launch-1.0 rtpbin name=rtpbin \
* videotestsrc ! videoconvert ! x264enc ! rtph264pay ! rtpbin.send_rtp_sink_0 \
* rtpbin.send_rtp_src_0 ! udpsink port=5000
* ]| Encode and payload H264 video from videotestsrc. The H264 RTP packets are
* sent on UDP port 5000.
* |[
* test-launch "( udpsrc port=5000 caps=application/x-rtp, ..." ! .recv_rtp_sink_0 \
* rtpbin ! rtppassthroughpay name=pay0 )"
* ]| Setup a gstreamer-rtsp-server using the example tool, it will listen for
* H264 RTP packets on port 5000 and present them using the rtppassthroughpay
* element as the well-known payloader pay0.
*
* Since: 1.24
*/
#include <gst/rtp/rtp.h>
#include "gstrtpelements.h"
#include "gstrtppassthroughpay.h"
GST_DEBUG_CATEGORY_STATIC (gst_rtp_passthrough_pay_debug);
#define GST_CAT_DEFAULT gst_rtp_passthrough_pay_debug
#define PAYLOAD_TYPE_INVALID 128 /* valid range is 0 - 127 (seven bits) */
G_DEFINE_TYPE (GstRtpPassthroughPay, gst_rtp_passthrough_pay, GST_TYPE_ELEMENT);
GST_ELEMENT_REGISTER_DEFINE_WITH_CODE (rtppassthroughpay,
"rtppassthroughpay", GST_RANK_NONE, GST_TYPE_RTP_PASSTHROUGH_PAY,
rtp_element_init (plugin));
static GstStaticPadTemplate src_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp, " "payload = (int) [ 0, 127 ],"
"clock-rate = (int) [ 1, 2147483647 ]"));
static GstStaticPadTemplate sink_template =
GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp, " "payload = (int) [ 0, 127 ],"
"clock-rate = (int) [ 1, 2147483647 ]"));
enum
{
PROP_0,
PROP_PT,
PROP_MTU,
PROP_STATS,
PROP_SEQNUM,
PROP_SEQNUM_OFFSET,
PROP_TIMESTAMP,
PROP_TIMESTAMP_OFFSET,
};
static void gst_rtp_passthrough_pay_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
static void gst_rtp_passthrough_pay_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static void gst_rtp_passthrough_pay_finalize (GObject * object);
static GstStateChangeReturn
gst_rtp_passthrough_pay_change_state (GstElement * element,
GstStateChange transition);
static GstFlowReturn gst_rtp_passthrough_pay_chain (GstPad * pad,
GstObject * parent, GstBuffer * buffer);
static gboolean gst_rtp_passthrough_pay_sink_event (GstPad * pad,
GstObject * parent, GstEvent * event);
static void gst_rtp_passthrough_set_payload_type (GstRtpPassthroughPay * self,
guint pt);
static GstStructure
* gst_rtp_passthrough_pay_create_stats (GstRtpPassthroughPay * self);
static void
gst_rtp_passthrough_pay_init (GstRtpPassthroughPay * self)
{
self->sinkpad = gst_pad_new_from_static_template (&sink_template, "sink");
gst_pad_set_chain_function (self->sinkpad, gst_rtp_passthrough_pay_chain);
gst_pad_set_event_function (self->sinkpad,
gst_rtp_passthrough_pay_sink_event);
GST_OBJECT_FLAG_SET (self->sinkpad, GST_PAD_FLAG_PROXY_ALLOCATION);
GST_OBJECT_FLAG_SET (self->sinkpad, GST_PAD_FLAG_PROXY_CAPS);
GST_OBJECT_FLAG_SET (self->sinkpad, GST_PAD_FLAG_PROXY_SCHEDULING);
gst_element_add_pad (GST_ELEMENT (self), self->sinkpad);
self->srcpad = gst_pad_new_from_static_template (&src_template, "src");
GST_OBJECT_FLAG_SET (self->srcpad, GST_PAD_FLAG_PROXY_CAPS);
gst_element_add_pad (GST_ELEMENT (self), self->srcpad);
self->pt = PAYLOAD_TYPE_INVALID;
}
static void
gst_rtp_passthrough_pay_class_init (GstRtpPassthroughPayClass
* gst_rtp_passthrough_pay_class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (gst_rtp_passthrough_pay_class);
GstElementClass *element_class =
GST_ELEMENT_CLASS (gst_rtp_passthrough_pay_class);
gobject_class->set_property = gst_rtp_passthrough_pay_set_property;
gobject_class->get_property = gst_rtp_passthrough_pay_get_property;
gobject_class->finalize = gst_rtp_passthrough_pay_finalize;
/**
* GstRtpPassthroughPay:pt:
*
* If set this will override the payload of the incoming RTP packets.
* If not set the payload type will be same as incoming RTP packets.
*
* Since: 1.24
*/
g_object_class_install_property (G_OBJECT_CLASS (gobject_class), PROP_PT,
g_param_spec_uint ("pt", "payload type",
"The payload type of the packets", 0, 0x80, PAYLOAD_TYPE_INVALID,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstRtpPassthroughPay:mtu:
*
* Setting this property has no effect on this element, it is here and it
* is writable only to emulate a proper RTP payloader.
*
* Since: 1.24
*/
g_object_class_install_property (G_OBJECT_CLASS (gobject_class), PROP_MTU,
g_param_spec_uint ("mtu", "MTU", "Maximum size of one packet", 28,
G_MAXUINT, 1492, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstRtpPassthroughPay:timestamp:
*
* Since: 1.24
*/
g_object_class_install_property (G_OBJECT_CLASS (gobject_class),
PROP_TIMESTAMP, g_param_spec_uint ("timestamp", "Timestamp",
"The RTP timestamp of the last processed packet", 0, G_MAXUINT32, 0,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
/**
* GstRtpPassthroughPay:seqnum:
*
* Since: 1.24
*/
g_object_class_install_property (G_OBJECT_CLASS (gobject_class), PROP_SEQNUM,
g_param_spec_uint ("seqnum", "Sequence number",
"The RTP sequence number of the last processed packet", 0,
G_MAXUINT16, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
/**
* GstRtpPassthroughPay:timestamp-offset:
*
* Since: 1.24
*/
g_object_class_install_property (G_OBJECT_CLASS (gobject_class),
PROP_TIMESTAMP_OFFSET, g_param_spec_uint ("timestamp-offset",
"Timestamp Offset",
"Offset to add to all outgoing timestamps (default = random)", 0,
G_MAXUINT32, -1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstRtpPassthroughPay:seqnum-offset:
*
* Since: 1.24
*/
g_object_class_install_property (G_OBJECT_CLASS (gobject_class),
PROP_SEQNUM_OFFSET, g_param_spec_int ("seqnum-offset",
"Sequence number Offset",
"Offset to add to all outgoing seqnum (-1 = random)", -1, G_MAXUINT16,
-1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstRtpPassthroughPay:stats:
*
* Since: 1.24
*/
g_object_class_install_property (G_OBJECT_CLASS (gobject_class), PROP_STATS,
g_param_spec_boxed ("stats", "Statistics", "Various statistics",
GST_TYPE_STRUCTURE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
element_class->change_state = gst_rtp_passthrough_pay_change_state;
gst_element_class_add_static_pad_template (element_class, &sink_template);
gst_element_class_add_static_pad_template (element_class, &src_template);
gst_element_class_set_static_metadata (element_class,
"RTP Passthrough payloader", "Codec/Payloader/Network/RTP",
"Passes through RTP packets",
"Sebastian Dröge <sebastian@centricular.com>, "
"Jonas Danielsson <jonas.danielsson@spiideo.com>");
GST_DEBUG_CATEGORY_INIT (gst_rtp_passthrough_pay_debug, "rtppassthroughpay",
0, "RTP Passthrough Payloader");
}
static void
gst_rtp_passthrough_pay_finalize (GObject * object)
{
GstRtpPassthroughPay *self = GST_RTP_PASSTHROUGH_PAY (object);
gst_clear_caps (&self->caps);
G_OBJECT_CLASS (gst_rtp_passthrough_pay_parent_class)->finalize (object);
}
static void
gst_rtp_passthrough_pay_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstRtpPassthroughPay *self = GST_RTP_PASSTHROUGH_PAY (object);
switch (prop_id) {
case PROP_PT:
g_value_set_uint (value, self->pt);
break;
case PROP_MTU:
g_value_set_uint (value, 0U);
break;
case PROP_TIMESTAMP:
g_value_set_uint (value, self->timestamp);
break;
case PROP_TIMESTAMP_OFFSET:
g_value_set_uint (value, self->timestamp_offset);
break;
case PROP_SEQNUM:
g_value_set_uint (value, self->seqnum);
break;
case PROP_SEQNUM_OFFSET:
g_value_set_int (value, (guint16) self->seqnum_offset);
break;
case PROP_STATS:
g_value_take_boxed (value, gst_rtp_passthrough_pay_create_stats (self));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_rtp_passthrough_pay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRtpPassthroughPay *self = GST_RTP_PASSTHROUGH_PAY (object);
switch (prop_id) {
case PROP_PT:
gst_rtp_passthrough_set_payload_type (self, g_value_get_uint (value));
break;
case PROP_MTU:
GST_WARNING_OBJECT (self, "Setting the mtu property has no effect");
break;
case PROP_TIMESTAMP_OFFSET:
GST_FIXME_OBJECT (self,
"Setting the timestamp-offset property has no effect");
break;
case PROP_SEQNUM_OFFSET:
GST_FIXME_OBJECT (self,
"Setting the seqnum-offset property has no effect");
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
gst_rtp_passthrough_pay_change_state (GstElement * element,
GstStateChange transition)
{
GstRtpPassthroughPay *self = GST_RTP_PASSTHROUGH_PAY (element);
GstStateChangeReturn ret;
ret = GST_ELEMENT_CLASS (gst_rtp_passthrough_pay_parent_class)
->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_clear_caps (&self->caps);
gst_segment_init (&self->segment, GST_FORMAT_TIME);
self->clock_rate = -1;
self->pt = PAYLOAD_TYPE_INVALID;
self->pt_override = FALSE;
self->ssrc = -1;
self->ssrc_set = FALSE;
self->timestamp = -1;
self->timestamp_offset = -1;
self->timestamp_offset_set = FALSE;
self->seqnum = -1;
self->pts_or_dts = GST_CLOCK_TIME_NONE;
break;
default:
break;
}
return ret;
}
static GstFlowReturn
gst_rtp_passthrough_pay_chain (GstPad * pad,
GstObject * parent, GstBuffer * buffer)
{
GstRtpPassthroughPay *self = GST_RTP_PASSTHROUGH_PAY (parent);
GstRTPBuffer rtp_buffer = GST_RTP_BUFFER_INIT;
guint pt, ssrc, seqnum, timestamp;
if (!gst_rtp_buffer_map (buffer, GST_MAP_READWRITE, &rtp_buffer)) {
GST_ERROR_OBJECT (self, "Invalid RTP buffer");
return gst_pad_push (self->srcpad, buffer);
}
/* If the PROP_PT property is set we override the incoming packets payload
* type. If it is not, we will mirror the payload type.
*
*/
pt = gst_rtp_buffer_get_payload_type (&rtp_buffer);
if (self->pt_override && self->pt != PAYLOAD_TYPE_INVALID) {
gst_rtp_buffer_set_payload_type (&rtp_buffer, self->pt);
} else {
if (pt != self->pt) {
if (self->pt != PAYLOAD_TYPE_INVALID) {
GST_WARNING_OBJECT (self, "Payload type changed from %u to %u",
self->pt, pt);
}
self->pt = pt;
g_object_notify (G_OBJECT (self), "pt");
}
}
ssrc = gst_rtp_buffer_get_ssrc (&rtp_buffer);
if (self->ssrc_set && self->ssrc != ssrc) {
GST_WARNING_OBJECT (self, "SSRC changed from %u to %u", self->ssrc, ssrc);
}
self->ssrc = ssrc;
self->ssrc_set = TRUE;
seqnum = gst_rtp_buffer_get_seq (&rtp_buffer);
self->seqnum = seqnum;
if (self->seqnum_offset == (guint) (-1)) {
self->seqnum_offset = seqnum;
g_object_notify (G_OBJECT (self), "seqnum-offset");
}
timestamp = gst_rtp_buffer_get_timestamp (&rtp_buffer);
self->timestamp = timestamp;
if (!self->timestamp_offset_set) {
self->timestamp_offset = timestamp;
self->timestamp_offset_set = TRUE;
g_object_notify (G_OBJECT (self), "timestamp-offset");
}
gst_rtp_buffer_unmap (&rtp_buffer);
if (GST_BUFFER_PTS_IS_VALID (buffer))
self->pts_or_dts = GST_BUFFER_PTS (buffer);
else if (GST_BUFFER_DTS_IS_VALID (buffer))
self->pts_or_dts = GST_BUFFER_DTS (buffer);
return gst_pad_push (self->srcpad, buffer);
}
static gboolean
gst_rtp_passthrough_pay_sink_event (GstPad * pad,
GstObject * parent, GstEvent * event)
{
GstRtpPassthroughPay *self = GST_RTP_PASSTHROUGH_PAY (parent);
gboolean ret = FALSE;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEGMENT:{
gst_event_copy_segment (event, &self->segment);
ret = gst_pad_event_default (pad, parent, event);
break;
}
case GST_EVENT_CAPS:{
GstCaps *caps;
const GstStructure *s;
gst_event_parse_caps (event, &caps);
gst_caps_replace (&self->caps, caps);
s = gst_caps_get_structure (caps, 0);
gst_structure_get_uint (s, "payload", &self->pt);
gst_structure_get_uint (s, "clock-rate", &self->clock_rate);
if (gst_structure_get_uint (s, "ssrc", &self->ssrc))
self->ssrc_set = TRUE;
if (gst_structure_get_uint (s, "clock-base", &self->timestamp_offset))
self->timestamp_offset_set = TRUE;
gst_structure_get_uint (s, "seqnum-base", &self->seqnum_offset);
ret = gst_pad_event_default (pad, parent, event);
break;
}
default:
ret = gst_pad_event_default (pad, parent, event);
break;
}
return ret;
}
static void
gst_rtp_passthrough_set_payload_type (GstRtpPassthroughPay * self, guint pt)
{
if (self->pt == pt) {
return;
}
if (pt != PAYLOAD_TYPE_INVALID) {
GST_INFO_OBJECT (self, "Overriding payload type (%u)", pt);
self->pt_override = TRUE;
} else {
self->pt_override = FALSE;
}
self->pt = pt;
}
static GstStructure *
gst_rtp_passthrough_pay_create_stats (GstRtpPassthroughPay * self)
{
GstClockTime running_time;
running_time = gst_segment_to_running_time (&self->segment, GST_FORMAT_TIME,
self->pts_or_dts);
return gst_structure_new ("application/x-rtp-payload-stats", "clock-rate",
G_TYPE_UINT, (guint) self->clock_rate, "running-time", G_TYPE_UINT64,
running_time, "seqnum", G_TYPE_UINT, (guint) self->seqnum, "timestamp",
G_TYPE_UINT, (guint) self->timestamp, "ssrc", G_TYPE_UINT, self->ssrc,
"pt", G_TYPE_UINT, self->pt, "seqnum-offset", G_TYPE_UINT,
(guint) self->seqnum_offset, "timestamp-offset", G_TYPE_UINT,
(guint) self->timestamp_offset, NULL);
return NULL;
}

71
subprojects/gst-plugins-good/gst/rtp/gstrtppassthroughpay.h Normal file
View file

@ -0,0 +1,71 @@
/*
* GStreamer
*
* Copyright (C) 2023 Sebastian Dröge <sebastian@centricular.com>
* Copyright (C) 2023 Jonas Danielsson <jonas.danielsson@spiideo.com>
*
* gstrtppassthroughpay.h:
*
* 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.
*/
#pragma once
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_TYPE_RTP_PASSTHROUGH_PAY (gst_rtp_passthrough_pay_get_type())
#define GST_RTP_PASSTHROUGH_PAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_RTP_PASSTHROUGH_PAY, \
GstRtpPassthroughPay))
#define GST_RTP_PASSTHROUGH_PAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_RTP_PASSTHROUGH_PAY, \
GstRtpPassthroughPayClass))
#define GST_IS_RTP_PASSTHROUGH_PAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_RTP_PASSTHROUGH_PAY))
#define GST_IS_RTP_PASSTHROUGH_PAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_RTP_PASSTHROUGH_PAY))
#define GST_RTP_PASSTHROUGH_PAY_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_RTP_PASSTHROUGH_PAY, \
GstRtpPassthroughPayClass))
typedef struct _GstRtpPassthroughPay GstRtpPassthroughPay;
typedef struct _GstRtpPassthroughPayClass GstRtpPassthroughPayClass;
struct _GstRtpPassthroughPayClass
{
GstElementClass parent_class;
};
struct _GstRtpPassthroughPay
{
GstElement parent;
GstPad *sinkpad, *srcpad;
GstCaps *caps;
GstSegment segment;
guint clock_rate;
guint pt;
gboolean pt_override;
guint ssrc;
gboolean ssrc_set;
guint timestamp;
guint timestamp_offset;
gboolean timestamp_offset_set;
guint seqnum;
guint seqnum_offset;
GstClockTime pts_or_dts;
};
GType gst_rtp_passthrough_pay_get_type (void);
G_END_DECLS

1
subprojects/gst-plugins-good/gst/rtp/meson.build
View file

@ -26,6 +26,7 @@ rtp_sources = [
'gstrtpmpvpay.c',
'gstrtpopuspay.c',
'gstrtpopusdepay.c',
'gstrtppassthroughpay.c',
'gstrtppcmadepay.c',
'gstrtppcmudepay.c',
'gstrtppcmupay.c',

122
subprojects/gst-plugins-good/tests/check/elements/rtppassthrough.c Normal file
View file

@ -0,0 +1,122 @@
/* GStreamer
*
* Copyright (C) 2023 Jonas Danielsson <jonas.danielsson@spiideo.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.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/check/check.h>
#include <gst/check/gstharness.h>
#include <gst/rtp/gstrtpbuffer.h>
#define buffer_from_array(a) gst_buffer_new_memdup (a, G_N_ELEMENTS (a))
static guint8 klv_data[] = {
0x06, 0x0e, 0x2b, 0x34, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x42, 0x02, 0x00, 0x03,
};
GST_START_TEST (test_pay_depay_passthrough)
{
GstHarness *h =
gst_harness_new_parse ("rtpklvpay ! rtppassthroughpay ! rtpklvdepay");
GstBuffer *buf = buffer_from_array (klv_data);
gst_harness_set_src_caps_str (h, "meta/x-klv,parsed=true");
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h, buf));
gst_buffer_unref (gst_harness_pull (h));
gst_harness_teardown (h);
}
GST_END_TEST
GST_START_TEST (test_read_properties)
{
GstElement *passthrough_pay;
GstElement *klv_pay;
GstStructure *stats;
guint pt;
guint ssrc_klv;
guint ssrc_passthrough;
GstHarness *h =
gst_harness_new_parse ("rtpklvpay pt=97 ssrc=424242 ! rtppassthroughpay");
GstBuffer *buf = buffer_from_array (klv_data);
gst_harness_set_src_caps_str (h, "meta/x-klv,parsed=true");
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h, buf));
passthrough_pay = gst_harness_find_element (h, "rtppassthroughpay");
g_object_get (G_OBJECT (passthrough_pay), "pt", &pt, NULL);
fail_unless_equals_uint64 (pt, 97U);
klv_pay = gst_harness_find_element (h, "rtpklvpay");
g_object_get (G_OBJECT (klv_pay), "ssrc", &ssrc_klv, NULL);
g_object_get (G_OBJECT (passthrough_pay), "stats", &stats, NULL);
gst_structure_get_uint (stats, "ssrc", &ssrc_passthrough);
fail_unless_equals_uint64 (424242U, ssrc_passthrough);
gst_structure_free (stats);
gst_object_unref (klv_pay);
gst_object_unref (passthrough_pay);
gst_buffer_unref (gst_harness_pull (h));
gst_harness_teardown (h);
}
GST_END_TEST;
GST_START_TEST (test_override_payload_type)
{
GstElement *passthrough_pay;
guint pt;
GstHarness *h =
gst_harness_new_parse ("rtpklvpay pt=97 ! rtppassthroughpay pt=98");
GstBuffer *buf = buffer_from_array (klv_data);
GstRTPBuffer rtp_buf = GST_RTP_BUFFER_INIT;
gst_harness_set_src_caps_str (h, "meta/x-klv,parsed=true");
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h, buf));
passthrough_pay = gst_harness_find_element (h, "rtppassthroughpay");
g_object_get (G_OBJECT (passthrough_pay), "pt", &pt, NULL);
fail_unless_equals_uint64 (pt, 98U);
buf = gst_harness_pull (h);
gst_rtp_buffer_map (buf, GST_MAP_READ, &rtp_buf);
fail_unless_equals_uint64 (gst_rtp_buffer_get_payload_type (&rtp_buf), 98U);
gst_rtp_buffer_unmap (&rtp_buf);
gst_object_unref (passthrough_pay);
gst_buffer_unref (buf);
gst_harness_teardown (h);
}
GST_END_TEST;
static Suite *
rtppassthrough_suite (void)
{
Suite *s = suite_create ("rtppassthrough");
TCase *tc_chain;
suite_add_tcase (s, (tc_chain = tcase_create ("rtppassthrough")));
tcase_add_test (tc_chain, test_pay_depay_passthrough);
tcase_add_test (tc_chain, test_read_properties);
tcase_add_test (tc_chain, test_override_payload_type);
return s;
}
GST_CHECK_MAIN (rtppassthrough);

1
subprojects/gst-plugins-good/tests/check/meson.build
View file

@ -92,6 +92,7 @@ if not get_option('rtp').disabled() and not get_option('rtpmanager').disabled()
[ 'elements/rtph264' ],
[ 'elements/rtph265' ],
[ 'elements/rtpopus' ],
[ 'elements/rtppassthrough' ],
[ 'elements/rtpvp8' ],
[ 'elements/rtpvp9' ],
[ 'elements/rtpbin' ],