[vlc-devel] [PATCH 4/5] dlna: add a DLNA stream out

Shaleen Jain shaleen at jain.sh
Mon Oct 15 10:18:02 CEST 2018


Add support for casting to a DLNA Media Renderers
which implement the AVTransport service with the
initial support of the default media format.
---
 NEWS                                    |   1 +
 modules/MODULES_LIST                    |   1 +
 modules/services_discovery/Makefile.am  |   5 +-
 modules/services_discovery/upnp.cpp     |  15 +
 modules/services_discovery/upnp.hpp     |   1 +
 modules/stream_out/dlna/dlna.cpp        | 569 ++++++++++++++++++++++++
 modules/stream_out/dlna/dlna.hpp        |  60 +++
 modules/stream_out/dlna/dlna_common.hpp |  61 +++
 8 files changed, 712 insertions(+), 1 deletion(-)
 create mode 100644 modules/stream_out/dlna/dlna.cpp
 create mode 100644 modules/stream_out/dlna/dlna.hpp
 create mode 100644 modules/stream_out/dlna/dlna_common.hpp

diff --git a/NEWS b/NEWS
index 3054bb84a7..7fe0c4d39b 100644
--- a/NEWS
+++ b/NEWS
@@ -40,6 +40,7 @@ Video output:
 Stream output:
  * New SDI output with improved audio and ancillary support.
    Candidate for deprecation of decklink vout/aout modules.
+ * Support for DLNA/UPNP renderers
 
 macOS:
  * Remove Growl notification support
diff --git a/modules/MODULES_LIST b/modules/MODULES_LIST
index 79161ae3ed..65815ed22e 100644
--- a/modules/MODULES_LIST
+++ b/modules/MODULES_LIST
@@ -377,6 +377,7 @@ $Id$
  * stream_out_delay: introduce delay in an ES when streaming
  * stream_out_description: helper module for RTSP vod
  * stream_out_display: displays a stream output chain
+ * stream_out_dlna: DLNA streaming output module
  * stream_out_dummy: dummy stream out chain module
  * stream_out_duplicate: duplicates a stream output chain
  * stream_out_es: stream out module outputing ES
diff --git a/modules/services_discovery/Makefile.am b/modules/services_discovery/Makefile.am
index f63df23b32..1b59cb1e4f 100644
--- a/modules/services_discovery/Makefile.am
+++ b/modules/services_discovery/Makefile.am
@@ -28,7 +28,10 @@ sd_LTLIBRARIES += $(LTLIBmtp)
 
 libupnp_plugin_la_SOURCES = services_discovery/upnp.cpp services_discovery/upnp.hpp \
 			    services_discovery/upnp-wrapper.hpp \
-			    services_discovery/upnp-wrapper.cpp
+			    services_discovery/upnp-wrapper.cpp \
+			    stream_out/dlna/dlna_common.hpp \
+			    stream_out/dlna/dlna.hpp \
+			    stream_out/dlna/dlna.cpp
 libupnp_plugin_la_CXXFLAGS = $(AM_CXXFLAGS) $(UPNP_CFLAGS)
 libupnp_plugin_la_LDFLAGS = $(AM_LDFLAGS) -rpath '$(sddir)'
 libupnp_plugin_la_LIBADD = $(UPNP_LIBS)
diff --git a/modules/services_discovery/upnp.cpp b/modules/services_discovery/upnp.cpp
index c1c2b947b2..b22f13bec8 100644
--- a/modules/services_discovery/upnp.cpp
+++ b/modules/services_discovery/upnp.cpp
@@ -147,6 +147,21 @@ vlc_module_begin()
 
     VLC_RD_PROBE_SUBMODULE
 
+    add_submodule()
+        set_shortname("dlna")
+        set_description(N_("UPnP/DLNA stream output"))
+        set_capability("sout stream", 0)
+        add_shortcut("dlna")
+        set_category(CAT_SOUT)
+        set_subcategory(SUBCAT_SOUT_STREAM)
+        set_callbacks(DLNA::OpenSout, DLNA::CloseSout)
+
+        add_string(SOUT_CFG_PREFIX "ip", NULL, IP_ADDR_TEXT, IP_ADDR_LONGTEXT, false)
+        add_integer(SOUT_CFG_PREFIX "port", NULL, PORT_TEXT, PORT_LONGTEXT, false)
+        add_integer(SOUT_CFG_PREFIX "http-port", HTTP_PORT, HTTP_PORT_TEXT, HTTP_PORT_LONGTEXT, false)
+        add_bool(SOUT_CFG_PREFIX "video", true, HAS_VIDEO_TEXT, HAS_VIDEO_LONGTEXT, false)
+        add_string(SOUT_CFG_PREFIX "base_url", NULL, BASE_URL_TEXT, BASE_URL_LONGTEXT, false)
+        add_string(SOUT_CFG_PREFIX "url", NULL, URL_TEXT, URL_LONGTEXT, false)
 vlc_module_end()
 
 /*
diff --git a/modules/services_discovery/upnp.hpp b/modules/services_discovery/upnp.hpp
index 5a0de1f284..3b2e80b209 100644
--- a/modules/services_discovery/upnp.hpp
+++ b/modules/services_discovery/upnp.hpp
@@ -33,6 +33,7 @@
 #endif
 
 #include "upnp-wrapper.hpp"
+#include "../stream_out/dlna/dlna_common.hpp"
 
 #include <vlc_url.h>
 #include <vlc_interrupt.h>
diff --git a/modules/stream_out/dlna/dlna.cpp b/modules/stream_out/dlna/dlna.cpp
new file mode 100644
index 0000000000..43da65d055
--- /dev/null
+++ b/modules/stream_out/dlna/dlna.cpp
@@ -0,0 +1,569 @@
+/*****************************************************************************
+ * dlna.cpp : DLNA/UPNP (renderer) sout module
+ *****************************************************************************
+ * Copyright (C) 2004-2018 VLC authors and VideoLAN
+ *
+ * Authors: William Ung <william1.ung at epitech.eu>
+ *          Shaleen Jain <shaleen at jain.sh>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "dlna.hpp"
+
+#include <vector>
+#include <string>
+#include <sstream>
+
+#include <vlc_rand.h>
+#include <vlc_sout.h>
+
+static const char* AV_TRANSPORT_SERVICE_TYPE = "urn:schemas-upnp-org:service:AVTransport:1";
+static const char* CONNECTION_MANAGER_SERVICE_TYPE = "urn:schemas-upnp-org:service:ConnectionManager:1";
+
+static const char *const ppsz_sout_options[] = {
+    "ip", "port", "http-port", "video", "base_url", "url", NULL
+};
+
+namespace DLNA 
+{
+
+struct sout_stream_id_sys_t
+{
+    es_format_t           fmt;
+    sout_stream_id_sys_t  *p_sub_id;
+};
+
+struct sout_stream_sys_t
+{
+    sout_stream_sys_t(int http_port, bool supports_video)
+        : p_out(NULL)
+        , b_supports_video(supports_video)
+        , es_changed(true)
+        , http_port(http_port)
+    {
+    }
+
+    std::shared_ptr<MediaRenderer> renderer;
+    UpnpInstanceWrapper *p_upnp;
+
+    bool canDecodeAudio( vlc_fourcc_t i_codec ) const;
+    bool canDecodeVideo( vlc_fourcc_t i_codec ) const;
+    bool startSoutChain( sout_stream_t* p_stream,
+                         const std::vector<sout_stream_id_sys_t*> &new_streams,
+                         const std::string &sout );
+    void stopSoutChain( sout_stream_t* p_stream );
+    sout_stream_id_sys_t *GetSubId( sout_stream_t *p_stream,
+                                    sout_stream_id_sys_t *id,
+                                    bool update = true );
+
+    sout_stream_t                       *p_out;
+    bool                                b_supports_video;
+    bool                                es_changed;
+    int                                 http_port;
+    std::vector<sout_stream_id_sys_t*>  streams;
+    std::vector<sout_stream_id_sys_t*>  out_streams;
+
+    int UpdateOutput( sout_stream_t *p_stream );
+
+};
+
+bool sout_stream_sys_t::canDecodeAudio(vlc_fourcc_t i_codec) const
+{
+    return i_codec == VLC_CODEC_MP4A;
+}
+
+bool sout_stream_sys_t::canDecodeVideo(vlc_fourcc_t i_codec) const
+{
+    return i_codec == VLC_CODEC_H264;
+}
+
+bool sout_stream_sys_t::startSoutChain(sout_stream_t *p_stream,
+                                       const std::vector<sout_stream_id_sys_t*> &new_streams,
+                                       const std::string &sout)
+{
+    msg_Dbg( p_stream, "Creating chain %s", sout.c_str() );
+    out_streams = new_streams;
+
+    p_out = sout_StreamChainNew( p_stream->p_sout, sout.c_str(), NULL, NULL);
+    if (p_out == NULL) {
+        msg_Err(p_stream, "could not create sout chain:%s", sout.c_str());
+        out_streams.clear();
+        return false;
+    }
+
+    /* check the streams we can actually add */
+    for (std::vector<sout_stream_id_sys_t*>::iterator it = out_streams.begin();
+            it != out_streams.end(); )
+    {
+        sout_stream_id_sys_t *p_sys_id = *it;
+        p_sys_id->p_sub_id = static_cast<sout_stream_id_sys_t *>(
+                sout_StreamIdAdd( p_out, &p_sys_id->fmt ) );
+        if ( p_sys_id->p_sub_id == NULL )
+        {
+            msg_Err( p_stream, "can't handle %4.4s stream",
+                    (char *)&p_sys_id->fmt.i_codec );
+            es_format_Clean( &p_sys_id->fmt );
+            it = out_streams.erase( it );
+        }
+        else
+            ++it;
+    }
+
+    if (out_streams.empty())
+    {
+        stopSoutChain( p_stream );
+        return false;
+    }
+
+    return true;
+}
+
+void sout_stream_sys_t::stopSoutChain(sout_stream_t *p_stream)
+{
+    (void) p_stream;
+
+    for ( size_t i = 0; i < out_streams.size(); i++ )
+    {
+        sout_StreamIdDel( p_out, out_streams[i]->p_sub_id );
+        out_streams[i]->p_sub_id = NULL;
+    }
+    out_streams.clear();
+    sout_StreamChainDelete( p_out, NULL );
+    p_out = NULL;
+}
+
+sout_stream_id_sys_t *sout_stream_sys_t::GetSubId( sout_stream_t *p_stream,
+                                                   sout_stream_id_sys_t *id,
+                                                   bool update)
+{
+    assert( p_stream->p_sys == this );
+
+    if ( update && UpdateOutput( p_stream ) != VLC_SUCCESS )
+        return NULL;
+
+    for (size_t i = 0; i < out_streams.size(); ++i)
+    {
+        if ( id == (sout_stream_id_sys_t*) out_streams[i] )
+            return out_streams[i]->p_sub_id;
+    }
+
+    msg_Err( p_stream, "unknown stream ID" );
+    return NULL;
+}
+
+int sout_stream_sys_t::UpdateOutput( sout_stream_t *p_stream )
+{
+    assert( p_stream->p_sys == this );
+
+    if ( !es_changed )
+        return VLC_SUCCESS;
+
+    es_changed = false;
+
+    bool canRemux = true;
+    vlc_fourcc_t i_codec_video = 0, i_codec_audio = 0;
+    std::vector<sout_stream_id_sys_t*> new_streams;
+
+    for (sout_stream_id_sys_t *stream : streams)
+    {
+        const es_format_t *p_es = &stream->fmt;
+        if (p_es->i_cat == AUDIO_ES)
+        {
+            if (!canDecodeAudio( p_es->i_codec ))
+            {
+                msg_Dbg( p_stream, "can't remux audio track %d codec %4.4s",
+                        p_es->i_id, (const char*)&p_es->i_codec );
+                canRemux = false;
+            }
+            else if (i_codec_audio == 0)
+            {
+                i_codec_audio = p_es->i_codec;
+            }
+            new_streams.push_back(stream);
+        }
+        else if (b_supports_video && p_es->i_cat == VIDEO_ES)
+        {
+            if (!canDecodeVideo( p_es->i_codec ))
+            {
+                msg_Dbg( p_stream, "can't remux video track %d codec %4.4s",
+                        p_es->i_id, (const char*)&p_es->i_codec );
+                canRemux = false;
+            }
+            else if (i_codec_video == 0)
+            {
+                i_codec_video = p_es->i_codec;
+            }
+            new_streams.push_back(stream);
+        }
+    }
+
+    if (new_streams.empty())
+        return VLC_SUCCESS;
+
+    std::ostringstream ssout;
+    if ( !canRemux )
+    {
+        /* TODO: provide audio samplerate and channels */
+        ssout << "transcode{";
+        char s_fourcc[5];
+        if ( i_codec_audio == 0 )
+        {
+            i_codec_audio = DEFAULT_TRANSCODE_AUDIO;
+            msg_Dbg( p_stream, "Converting audio to %.4s",
+                    (const char*)&i_codec_audio );
+            ssout << "acodec=";
+            vlc_fourcc_to_char( i_codec_audio, s_fourcc );
+            s_fourcc[4] = '\0';
+            ssout << s_fourcc << ',';
+        }
+        if ( b_supports_video && i_codec_video == 0 )
+        {
+            i_codec_video = DEFAULT_TRANSCODE_VIDEO;
+            msg_Dbg( p_stream, "Converting video to %.4s",
+                    (const char*)&i_codec_video );
+            /* TODO: provide maxwidth,maxheight */
+            ssout << "vcodec=";
+            vlc_fourcc_to_char( i_codec_video, s_fourcc );
+            s_fourcc[4] = '\0';
+            ssout << s_fourcc;
+        }
+        ssout << "}:";
+    }
+
+    std::ostringstream ss;
+    ss << "/dlna"
+       << "/" << vlc_tick_now()
+       << "/" << static_cast<uint64_t>( vlc_mrand48() )
+       << "/stream";
+    std::string root_url = ss.str();
+
+    ssout << "http{dst=:" << http_port << root_url
+          << ",mux=" << "mp4stream"
+          << ",access=http{mime=" << "video/mp4" << "}}";
+
+    if ( !startSoutChain( p_stream, new_streams, ssout.str() ) )
+        return VLC_EGENERIC;
+
+    char *ip = getIpv4ForMulticast();
+    if (ip == NULL)
+    {
+        ip = UpnpGetServerIpAddress();
+    }
+    if (ip == NULL)
+    {
+        msg_Err(p_stream, "could not get the local ip address");
+        return VLC_EGENERIC;
+    }
+
+    char *uri;
+    if (asprintf(&uri, "http://%s:%d%s", ip, http_port, root_url.c_str()) < 0) {
+        return VLC_ENOMEM;
+    }
+
+    msg_Dbg(p_stream, "AVTransportURI: %s", uri);
+    renderer->Stop();
+    renderer->SetAVTransportURI(uri);
+    renderer->Play("1");
+
+    return VLC_SUCCESS;
+}
+
+char *MediaRenderer::getServiceURL(const char* type, const char *service)
+{
+    IXML_Document *p_description_doc = NULL;
+    if (UpnpDownloadXmlDoc(device_url.c_str(), &p_description_doc) != UPNP_E_SUCCESS)
+        return NULL;
+
+    IXML_NodeList* p_device_list = ixmlDocument_getElementsByTagName( p_description_doc, "device");
+    free(p_description_doc);
+    if ( !p_device_list )
+        return NULL;
+
+    for (unsigned int i = 0; i < ixmlNodeList_length(p_device_list); ++i)
+    {
+        IXML_Element* p_device_element = ( IXML_Element* ) ixmlNodeList_item( p_device_list, i );
+        if( !p_device_element )
+            continue;
+
+        IXML_NodeList* p_service_list = ixmlElement_getElementsByTagName( p_device_element, "service" );
+        if ( !p_service_list )
+            continue;
+        for ( unsigned int j = 0; j < ixmlNodeList_length( p_service_list ); j++ )
+        {
+            IXML_Element* p_service_element = (IXML_Element*)ixmlNodeList_item( p_service_list, j );
+
+            const char* psz_service_type = xml_getChildElementValue( p_service_element, "serviceType" );
+            if ( !psz_service_type || !strstr(psz_service_type, type))
+                continue;
+            const char* psz_control_url = xml_getChildElementValue( p_service_element,
+                                                                    service );
+            if ( !psz_control_url )
+                continue;
+
+            char* psz_url = ( char* ) malloc( base_url.length() + strlen( psz_control_url ) + 1 );
+            if ( psz_url && UpnpResolveURL( base_url.c_str(), psz_control_url, psz_url ) == UPNP_E_SUCCESS )
+                return psz_url;
+            return NULL;
+        }
+    }
+    return NULL;
+}
+
+/**
+ * Send an action to the control url of the service specified.
+ *
+ * \return the response as a IXML document or NULL for failure
+ **/
+IXML_Document *MediaRenderer::SendAction(const char* action_name,const char *service_type,
+                    std::list<std::pair<const char*, const char*>> arguments)
+{
+    /* Create action */
+    IXML_Document *action = UpnpMakeAction(action_name, service_type, 0, NULL);
+
+    /* Add argument to action */
+    for (std::pair<const char*, const char*> arg : arguments) {
+      const char *arg_name, *arg_val;
+      arg_name = arg.first;
+      arg_val  = arg.second;
+      UpnpAddToAction(&action, action_name, service_type, arg_name, arg_val);
+    }
+
+    /* Get the controlURL of the service */
+    char *control_url = getServiceURL(service_type, "controlURL");
+
+    /* Send action */
+    IXML_Document *response = NULL;
+    int ret = UpnpSendAction(handle, control_url, service_type,
+                                    NULL, action, &response);
+
+    /* Free action */
+    if (action) ixmlDocument_free(action);
+    if (control_url) free(control_url);
+
+    if (ret != UPNP_E_SUCCESS) {
+        msg_Err(parent, "Unable to send action: %s (%d: %s) response: %s",
+                action_name, ret, UpnpGetErrorMessage(ret), ixmlPrintDocument(response));
+        if (response) ixmlDocument_free(response);
+        return NULL;
+    }
+
+    return response;
+}
+
+int MediaRenderer::Play(const char *speed)
+{
+    std::list<std::pair<const char*, const char*>> arg_list;
+    arg_list.push_back(std::make_pair("InstanceID", "0"));
+    arg_list.push_back(std::make_pair("Speed", speed));
+
+    IXML_Document *p_response = SendAction("Play", AV_TRANSPORT_SERVICE_TYPE, arg_list);
+    if(!p_response)
+    {
+        return VLC_EGENERIC;
+    }
+    ixmlDocument_free(p_response);
+    return VLC_SUCCESS;
+}
+
+int MediaRenderer::Stop()
+{
+    std::list<std::pair<const char*, const char*>> arg_list;
+    arg_list.push_back(std::make_pair("InstanceID", "0"));
+
+    IXML_Document *p_response = SendAction("Stop", AV_TRANSPORT_SERVICE_TYPE, arg_list);
+    if(!p_response)
+    {
+        return VLC_EGENERIC;
+    }
+    ixmlDocument_free(p_response);
+    return VLC_SUCCESS;
+}
+
+int MediaRenderer::SetAVTransportURI(const char* uri)
+{
+    std::list<std::pair<const char*, const char*>> arg_list;
+    arg_list.push_back(std::make_pair("InstanceID", "0"));
+    arg_list.push_back(std::make_pair("CurrentURI", uri));
+    arg_list.push_back(std::make_pair("CurrentURIMetaData", "")); // NOT_IMPLEMENTED
+
+    IXML_Document *p_response = SendAction("SetAVTransportURI",
+                                    AV_TRANSPORT_SERVICE_TYPE, arg_list);
+    if(!p_response)
+    {
+        return VLC_EGENERIC;
+    }
+    ixmlDocument_free(p_response);
+    return VLC_SUCCESS;
+}
+
+static void *Add(sout_stream_t *p_stream, const es_format_t *p_fmt)
+{
+    sout_stream_sys_t *p_sys = static_cast<sout_stream_sys_t *>( p_stream->p_sys );
+
+    if (!p_sys->b_supports_video)
+    {
+        if (p_fmt->i_cat != AUDIO_ES)
+            return NULL;
+    }
+
+    sout_stream_id_sys_t *p_sys_id = (sout_stream_id_sys_t *)malloc(sizeof(sout_stream_id_sys_t));
+    if(p_sys_id != NULL)
+    {
+        es_format_Copy(&p_sys_id->fmt, p_fmt);
+        p_sys_id->p_sub_id = NULL;
+        p_sys->streams.push_back(p_sys_id);
+        p_sys->es_changed = true;
+    }
+    return p_sys_id;
+}
+
+static int Send(sout_stream_t *p_stream, void *id,
+                block_t *p_buffer)
+{
+    sout_stream_sys_t *p_sys = static_cast<sout_stream_sys_t *>( p_stream->p_sys );
+    sout_stream_id_sys_t *id_sys = static_cast<sout_stream_id_sys_t*>( id );
+
+    id_sys = p_sys->GetSubId( p_stream, id_sys );
+    if ( id_sys == NULL )
+        return VLC_EGENERIC;
+
+    return sout_StreamIdSend(p_sys->p_out, id_sys, p_buffer);
+}
+
+static void Flush( sout_stream_t *p_stream, void *id )
+{
+    sout_stream_sys_t *p_sys = static_cast<sout_stream_sys_t *>( p_stream->p_sys );
+    sout_stream_id_sys_t *id_sys = static_cast<sout_stream_id_sys_t*>( id );
+
+    id_sys = p_sys->GetSubId( p_stream, id_sys, false );
+    if ( id_sys == NULL )
+        return;
+
+    sout_StreamFlush( p_sys->p_out, id_sys );
+}
+
+static void Del(sout_stream_t *p_stream, void *_id)
+{
+    sout_stream_sys_t *p_sys = static_cast<sout_stream_sys_t *>( p_stream->p_sys );
+    sout_stream_id_sys_t *id = static_cast<sout_stream_id_sys_t *>( _id );
+
+    for (std::vector<sout_stream_id_sys_t*>::iterator it = p_sys->streams.begin();
+         it != p_sys->streams.end(); )
+    {
+        sout_stream_id_sys_t *p_sys_id = *it;
+        if ( p_sys_id == id )
+        {
+            if ( p_sys_id->p_sub_id != NULL )
+            {
+                sout_StreamIdDel( p_sys->p_out, p_sys_id->p_sub_id );
+                for (std::vector<sout_stream_id_sys_t*>::iterator out_it = p_sys->out_streams.begin();
+                     out_it != p_sys->out_streams.end(); )
+                {
+                    if (*out_it == id)
+                    {
+                        p_sys->out_streams.erase(out_it);
+                        break;
+                    }
+                    out_it++;
+                }
+            }
+
+            es_format_Clean( &p_sys_id->fmt );
+            free( p_sys_id );
+            p_sys->streams.erase( it );
+            break;
+        }
+        it++;
+    }
+
+    if (p_sys->out_streams.empty())
+    {
+        p_sys->stopSoutChain(p_stream);
+        p_sys->renderer->Stop();
+    }
+}
+
+int OpenSout( vlc_object_t *p_this )
+{
+    sout_stream_t *p_stream = reinterpret_cast<sout_stream_t*>(p_this);
+    sout_stream_sys_t *p_sys = NULL;
+
+    config_ChainParse(p_stream, SOUT_CFG_PREFIX, ppsz_sout_options, p_stream->p_cfg);
+
+    int http_port = var_InheritInteger(p_stream, SOUT_CFG_PREFIX "http-port");
+    bool b_supports_video = var_GetBool(p_stream, SOUT_CFG_PREFIX "video");
+    char *base_url = var_GetNonEmptyString(p_stream, SOUT_CFG_PREFIX "base_url");
+    char *device_url = var_GetNonEmptyString(p_stream, SOUT_CFG_PREFIX "url");
+    if ( device_url == NULL)
+    {
+        msg_Err( p_stream, "missing Url" );
+        goto error;
+    }
+
+    try {
+        p_sys = new sout_stream_sys_t(http_port, b_supports_video);
+    }
+    catch ( const std::exception& ex ) {
+        msg_Err( p_stream, "Failed to instantiate sout_stream_sys_t: %s", ex.what() );
+        return VLC_EGENERIC;
+    }
+
+    p_sys->p_upnp = UpnpInstanceWrapper::get( p_this );
+    if ( !p_sys->p_upnp )
+        goto error;
+    try {
+        p_sys->renderer = std::make_shared<MediaRenderer>(p_stream,
+                            p_sys->p_upnp, base_url, device_url);
+    }
+    catch ( const std::bad_alloc& ) {
+        msg_Err( p_stream, "Failed to create a MediaRenderer");
+        p_sys->p_upnp->release();
+        goto error;
+    }
+
+    p_stream->pf_add     = Add;
+    p_stream->pf_del     = Del;
+    p_stream->pf_send    = Send;
+    p_stream->pf_flush   = Flush;
+
+    p_stream->p_sys = p_sys;
+
+    free(base_url);
+    free(device_url);
+
+    return VLC_SUCCESS;
+
+error:
+    free(base_url);
+    free(device_url);
+    delete p_sys;
+    return VLC_EGENERIC;
+}
+
+void CloseSout( vlc_object_t *p_this)
+{
+    sout_stream_t *p_stream = reinterpret_cast<sout_stream_t*>( p_this );
+    sout_stream_sys_t *p_sys = static_cast<sout_stream_sys_t *>( p_stream->p_sys );
+
+    p_sys->p_upnp->release();
+    delete p_sys;
+}
+
+}
diff --git a/modules/stream_out/dlna/dlna.hpp b/modules/stream_out/dlna/dlna.hpp
new file mode 100644
index 0000000000..59ff3d6c8d
--- /dev/null
+++ b/modules/stream_out/dlna/dlna.hpp
@@ -0,0 +1,60 @@
+/*****************************************************************************
+ * dlna.hpp : DLNA/UPNP (renderer) sout module header
+ *****************************************************************************
+ * Copyright (C) 2004-2018 VLC authors and VideoLAN
+ *
+ * Authors: William Ung <william1.ung at epitech.eu>
+ *          Shaleen Jain <shaleen at jain.sh>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifndef DLNA_H
+#define DLNA_H
+
+#include "../../services_discovery/upnp-wrapper.hpp"
+#include "dlna_common.hpp"
+
+namespace DLNA
+{
+
+class MediaRenderer
+{
+public:
+    MediaRenderer(sout_stream_t *p_stream, UpnpInstanceWrapper *upnp,
+            std::string base_url, std::string device_url)
+        : parent(p_stream)
+        , base_url(base_url)
+        , device_url(device_url)
+        , handle(upnp->handle())
+    {
+    }
+
+    sout_stream_t *parent;
+    std::string base_url;
+    std::string device_url;
+    UpnpClient_Handle handle;
+
+    char *getServiceURL(const char* type, const char* service);
+    IXML_Document *SendAction(const char* action_name, const char *service_type,
+                    std::list<std::pair<const char*, const char*>> arguments);
+
+    int Play(const char *speed);
+    int Stop();
+    int SetAVTransportURI(const char* uri);
+};
+
+}
+#endif /* DLNA_H */
diff --git a/modules/stream_out/dlna/dlna_common.hpp b/modules/stream_out/dlna/dlna_common.hpp
new file mode 100644
index 0000000000..74d9ec7ea7
--- /dev/null
+++ b/modules/stream_out/dlna/dlna_common.hpp
@@ -0,0 +1,61 @@
+/*****************************************************************************
+ * dlna.hpp : DLNA/UPNP (renderer) sout module header
+ *****************************************************************************
+ * Copyright (C) 2004-2018 VLC authors and VideoLAN
+ *
+ * Authors: William Ung <william1.ung at epitech.eu>
+ *          Shaleen Jain <shaleen at jain.sh>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifndef DLNA_COMMON_H
+#define DLNA_COMMON_H
+
+#include <list>
+
+#include<vlc_common.h>
+#include <vlc_fourcc.h>
+
+#define SOUT_CFG_PREFIX "sout-dlna-"
+
+#define HTTP_PORT         7070
+
+#define HTTP_PORT_TEXT N_("HTTP port")
+#define HTTP_PORT_LONGTEXT N_("This sets the HTTP port of the local server used to stream the media to the UPnP Renderer.")
+#define HAS_VIDEO_TEXT N_("Video")
+#define HAS_VIDEO_LONGTEXT N_("The UPnP Renderer can receive video.")
+
+#define IP_ADDR_TEXT N_("IP Address")
+#define IP_ADDR_LONGTEXT N_("IP Address of the UPnP Renderer.")
+#define PORT_TEXT N_("UPnP Renderer port")
+#define PORT_LONGTEXT N_("The port used to talk to the UPnP Renderer.")
+#define BASE_URL_TEXT N_("base URL")
+#define BASE_URL_LONGTEXT N_("The base Url relative to which all other UPnP operations must be called")
+#define URL_TEXT N_("description URL")
+#define URL_LONGTEXT N_("The Url used to get the xml descriptor of the UPnP Renderer")
+
+static const vlc_fourcc_t DEFAULT_TRANSCODE_AUDIO = VLC_CODEC_MP4A;
+static const vlc_fourcc_t DEFAULT_TRANSCODE_VIDEO = VLC_CODEC_H264;
+
+namespace DLNA 
+{
+
+/* module callbacks */
+int OpenSout(vlc_object_t *);
+void CloseSout(vlc_object_t *);
+
+}
+#endif /* DLNA_COMMON_H */
-- 
2.19.1


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