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vlc/modules/stream_out/dlna/dlna.cpp

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/*****************************************************************************
* dlna.cpp : DLNA/UPNP (renderer) sout module
*****************************************************************************
* Copyright © 2018 VLC authors and VideoLAN
*
* Authors: Shaleen Jain <shaleen@jain.sh>
* William Ung <william1.ung@epitech.eu>
*
* 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 <iomanip>
#include <vlc_configuration.h>
#include <vlc_cxx_helpers.hpp>
#include <vlc_dialog.h>
#include <vlc_rand.h>
#include <vlc_sout.h>
#include <vlc_block.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", nullptr
};
namespace DLNA
{
struct sout_stream_id_sys_t
{
es_format_t fmt;
const char *es_id;
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( nullptr )
, es_changed( true )
, b_supports_video( supports_video )
, perf_warning_shown( false )
, venc_opt_idx ( -1 )
, http_port( http_port )
{
}
std::shared_ptr<MediaRenderer> renderer;
UpnpInstanceWrapper *p_upnp;
ProtocolPtr canDecodeAudio( vlc_fourcc_t i_codec ) const;
ProtocolPtr canDecodeVideo( vlc_fourcc_t audio_codec,
vlc_fourcc_t video_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 es_changed;
bool b_supports_video;
bool perf_warning_shown;
int venc_opt_idx;
int http_port;
std::vector<sout_stream_id_sys_t*> streams;
std::vector<sout_stream_id_sys_t*> out_streams;
std::vector<protocol_info_t> device_protocols;
private:
std::string GetAcodecOption( sout_stream_t *, vlc_fourcc_t *, const audio_format_t *, int );
int UpdateOutput( sout_stream_t *p_stream );
};
static char *getServerIPAddress() {
const char *ip = UpnpGetServerIpAddress();
if (ip == nullptr) {
ip = UpnpGetServerIp6Address();
}
return ip != nullptr ? strdup(ip) : nullptr;
}
std::string dlna_write_protocol_info (const protocol_info_t info)
{
std::ostringstream protocol;
if (info.transport == DLNA_TRANSPORT_PROTOCOL_HTTP)
protocol << "http-get:*:";
protocol << info.profile.mime;
protocol << ":";
if (info.profile.name != "*")
protocol << "DLNA.ORG_PN=" << info.profile.name.c_str() << ";";
dlna_org_flags_t flags = DLNA_ORG_FLAG_STREAMING_TRANSFER_MODE |
DLNA_ORG_FLAG_BACKGROUND_TRANSFERT_MODE |
DLNA_ORG_FLAG_CONNECTION_STALL |
DLNA_ORG_FLAG_DLNA_V15;
protocol << std::setfill('0')
<< "DLNA.ORG_OP="
<< std::hex << std::setw(2)
<< DLNA_ORG_OPERATION_RANGE
<< ";DLNA.ORG_CI="
<< std::dec << info.ci
<< ";DLNA.ORG_FLAGS="
<< std::hex
<< std::setw(8) << flags
<< std::setw(24) << 0;
return protocol.str();
}
std::vector<std::string> split(const std::string &s, char delim) {
std::stringstream ss(s);
std::string item;
std::vector<std::string> elems;
while (std::getline(ss, item, delim)) {
elems.push_back(std::move(item));
}
return elems;
}
ProtocolPtr sout_stream_sys_t::canDecodeAudio(vlc_fourcc_t audio_codec) const
{
for (protocol_info_t protocol : device_protocols) {
if (protocol.profile.media == DLNA_CLASS_AUDIO
&& protocol.profile.audio_codec == audio_codec)
{
return std::unique_ptr<protocol_info_t>(new protocol_info_t(protocol));
}
}
return nullptr;
}
ProtocolPtr sout_stream_sys_t::canDecodeVideo(vlc_fourcc_t audio_codec,
vlc_fourcc_t video_codec) const
{
for (protocol_info_t protocol : device_protocols) {
if (protocol.profile.media == DLNA_CLASS_AV
&& protocol.profile.audio_codec == audio_codec
&& protocol.profile.video_codec == video_codec)
{
return std::unique_ptr<protocol_info_t>(new protocol_info_t(protocol));
}
}
return nullptr;
}
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)
{
stopSoutChain(p_stream);
msg_Dbg( p_stream, "Creating chain %s", sout.c_str() );
out_streams = new_streams;
p_out = sout_StreamChainNew(VLC_OBJECT(p_stream), sout.c_str(), nullptr);
if (p_out == nullptr) {
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, p_sys_id->es_id ) );
if ( p_sys_id->p_sub_id == nullptr )
{
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)
{
msg_Dbg( p_stream, "Destroying dlna sout chain");
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 = nullptr;
}
out_streams.clear();
sout_StreamChainDelete( p_out, nullptr );
p_out = nullptr;
}
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 nullptr;
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 nullptr;
}
std::string
sout_stream_sys_t::GetAcodecOption( sout_stream_t *p_stream, vlc_fourcc_t *p_codec_audio,
const audio_format_t *p_aud, int i_quality )
{
VLC_UNUSED(p_aud);
VLC_UNUSED(i_quality);
std::stringstream ssout;
msg_Dbg( p_stream, "Converting audio to %.4s", (const char*)p_codec_audio );
ssout << "acodec=";
char fourcc[5];
vlc_fourcc_to_char( *p_codec_audio, fourcc );
fourcc[4] = '\0';
ssout << fourcc << ',';
ssout << "aenc=avcodec{codec=aac},";
return ssout.str();
}
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;
// To keep track of which stream needs transcoding if at all.
vlc_fourcc_t i_codec_video = 0, i_codec_audio = 0;
const es_format_t *p_original_audio = nullptr;
const es_format_t *p_original_video = nullptr;
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)
{
p_original_audio = p_es;
new_streams.push_back(stream);
}
else if (b_supports_video && p_es->i_cat == VIDEO_ES)
{
p_original_video = p_es;
new_streams.push_back(stream);
}
}
if (new_streams.empty())
return VLC_SUCCESS;
ProtocolPtr stream_protocol;
// check if we have an audio only stream
if (!p_original_video && p_original_audio)
{
if( !(stream_protocol = canDecodeAudio(p_original_audio->i_codec)) )
{
msg_Dbg( p_stream, "can't remux audio track %d codec %4.4s",
p_original_audio->i_id, (const char*)&p_original_audio->i_codec );
stream_protocol = make_protocol(default_audio_protocol);
canRemux = false;
}
else
i_codec_audio = p_original_audio->i_codec;
}
// video only stream
else if (p_original_video && !p_original_audio)
{
if( !(stream_protocol = canDecodeVideo(VLC_CODEC_NONE,
p_original_video->i_codec)) )
{
msg_Dbg(p_stream, "can't remux video track %d codec: %4.4s",
p_original_video->i_id, (const char*)&p_original_video->i_codec);
stream_protocol = make_protocol(default_video_protocol);
canRemux = false;
}
else
i_codec_video = p_original_video->i_codec;
}
else
{
if( !(stream_protocol = canDecodeVideo( p_original_audio->i_codec,
p_original_video->i_codec)) )
{
msg_Dbg(p_stream, "can't remux video track %d with audio: %4.4s and video: %4.4s",
p_original_video->i_id, (const char*)&p_original_audio->i_codec,
(const char*)&p_original_video->i_codec);
stream_protocol = make_protocol(default_video_protocol);
canRemux = false;
// check which codec needs transcoding
if (stream_protocol->profile.audio_codec == p_original_audio->i_codec)
i_codec_audio = p_original_audio->i_codec;
if (stream_protocol->profile.video_codec == p_original_video->i_codec)
i_codec_video = p_original_video->i_codec;
}
else
{
i_codec_audio = p_original_audio->i_codec;
i_codec_video = p_original_video->i_codec;
}
}
msg_Dbg( p_stream, "using DLNA profile %s:%s",
stream_protocol->profile.mime.c_str(),
stream_protocol->profile.name.c_str() );
std::ostringstream ssout;
if ( !canRemux )
{
if ( !perf_warning_shown && i_codec_video == 0 && p_original_video
&& var_InheritInteger( p_stream, RENDERER_CFG_PREFIX "show-perf-warning" ) )
{
int res = vlc_dialog_wait_question( p_stream,
VLC_DIALOG_QUESTION_WARNING,
_("Cancel"), _("OK"), _("Ok, Don't warn me again"),
_("Performance warning"),
_("Casting this video requires conversion. "
"This conversion can use all the available power and "
"could quickly drain your battery." ) );
if ( res <= 0 )
return false;
perf_warning_shown = true;
if ( res == 2 )
config_PutInt(RENDERER_CFG_PREFIX "show-perf-warning", 0 );
}
const int i_quality = var_InheritInteger( p_stream, SOUT_CFG_PREFIX "conversion-quality" );
/* TODO: provide audio samplerate and channels */
ssout << "transcode{";
if ( i_codec_audio == 0 && p_original_audio )
{
i_codec_audio = stream_protocol->profile.audio_codec;
ssout << GetAcodecOption( p_stream, &i_codec_audio,
&p_original_audio->audio, i_quality );
}
if ( i_codec_video == 0 && p_original_video )
{
i_codec_video = stream_protocol->profile.video_codec;
try {
ssout << vlc_sout_renderer_GetVcodecOption( p_stream,
{ i_codec_video },
&i_codec_video,
&p_original_video->video, i_quality );
} catch(const std::exception& e) {
return VLC_EGENERIC ;
}
}
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=" << stream_protocol->profile.mux
<< ",access=http{mime=" << stream_protocol->profile.mime << "}}";
auto ip = vlc::wrap_cptr<char>(getServerIPAddress());
if (ip == nullptr)
{
msg_Err(p_stream, "could not get the local ip address");
return VLC_EGENERIC;
}
char *uri;
if (asprintf(&uri, "http://%s:%d%s", ip.get(), http_port, root_url.c_str()) < 0) {
return VLC_ENOMEM;
}
if ( !startSoutChain( p_stream, new_streams, ssout.str() ) ) {
free(uri);
return VLC_EGENERIC;
}
renderer->PrepareForConnection(dlna_write_protocol_info(*stream_protocol).c_str());
msg_Dbg(p_stream, "AVTransportURI: %s", uri);
renderer->Stop();
renderer->SetAVTransportURI(uri, *stream_protocol);
renderer->Play("1");
free(uri);
return VLC_SUCCESS;
}
char *MediaRenderer::getServiceURL(const char* type, const char *service)
{
IXML_Document *p_description_doc = nullptr;
if (UpnpDownloadXmlDoc(device_url.c_str(), &p_description_doc) != UPNP_E_SUCCESS)
return nullptr;
IXML_NodeList* p_device_list = ixmlDocument_getElementsByTagName( p_description_doc, "device");
free(p_description_doc);
if ( !p_device_list )
return nullptr;
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 = NULL;
if ( UpnpResolveURL2( base_url.c_str(), psz_control_url, &psz_url ) == UPNP_E_SUCCESS )
return psz_url;
return nullptr;
}
}
return nullptr;
}
/**
* Send an action to the control url of the service specified.
*
* \return the response as a IXML document or nullptr 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, nullptr);
/* 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 = nullptr;
int ret = UpnpSendAction(handle, control_url, service_type,
nullptr, action, &response);
/* Free action */
ixmlDocument_free(action);
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 nullptr;
}
return response;
}
int MediaRenderer::Play(const char *speed)
{
std::list<std::pair<const char*, const char*>> arg_list = {
{"InstanceID", AVTransportID.c_str()},
{"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 = {
{"InstanceID", AVTransportID.c_str()},
};
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;
}
std::vector<protocol_info_t> MediaRenderer::GetProtocolInfo()
{
std::string protocol_csv;
std::vector<protocol_info_t> supported_protocols;
std::list<std::pair<const char*, const char*>> arg_list;
IXML_Document *response = SendAction("GetProtocolInfo",
CONNECTION_MANAGER_SERVICE_TYPE, arg_list);
if(!response)
{
return supported_protocols;
}
// Get the CSV list of protocols/profiles supported by the device
IXML_NodeList *protocol_list = ixmlDocument_getElementsByTagName( response , "Sink" );
if( protocol_list )
{
IXML_Node* protocol_node = ixmlNodeList_item( protocol_list, 0 );
if ( protocol_node )
{
IXML_Node* p_text_node = ixmlNode_getFirstChild( protocol_node );
if ( p_text_node )
{
protocol_csv.assign(ixmlNode_getNodeValue( p_text_node ));
}
}
ixmlNodeList_free( protocol_list);
}
ixmlDocument_free(response);
msg_Dbg(parent, "Device supports protocols: %s", protocol_csv.c_str());
// parse the CSV list
// format: <transportProtocol>:<network>:<mime>:<additionalInfo>
std::vector<std::string> protocols = split(protocol_csv, ',');
for (std::string protocol : protocols ) {
std::vector<std::string> protocol_info = split(protocol, ':');
// We only support http transport for now.
if (protocol_info.size() == 4 && protocol_info.at(0) == "http-get")
{
protocol_info_t proto;
// Get the DLNA profile name
std::string profile_name;
std::string tag = "DLNA.ORG_PN=";
std::size_t index = protocol_info.at(3).find(tag);
if (protocol_info.at(3) == "*")
{
profile_name = "*";
}
else if (index != std::string::npos)
{
std::size_t end = protocol_info.at(3).find(';', index + 1);
int start = index + tag.length() - 1;
int length = end - start;
profile_name = protocol_info.at(3).substr(start, length);
}
// Match our supported profiles to device profiles
for (dlna_profile_t profile : dlna_profile_list) {
if (protocol_info.at(2) == profile.mime
&& (profile_name == profile.name || profile_name == "*"))
{
proto.profile = std::move(profile);
supported_protocols.push_back(proto);
// we do not break here to account for wildcards
// as protocolInfo's fourth field aka <additionalInfo>
}
}
}
}
msg_Dbg( parent , "Got %zu supported profiles", supported_protocols.size() );
return supported_protocols;
}
int MediaRenderer::PrepareForConnection(const char* protocol_str)
{
std::list<std::pair<const char*, const char*>> arg_list = {
{ "PeerConnectionID", "-1" },
{ "PeerConnectionManager", "" },
{ "Direction", "Input" },
{ "RemoteProtocolInfo", protocol_str },
};
IXML_Document *response = SendAction("PrepareForConnection",
CONNECTION_MANAGER_SERVICE_TYPE, arg_list);
if(!response)
{
return VLC_EGENERIC;
}
msg_Dbg(parent, "PrepareForConnection response: %s",
ixmlPrintDocument(response));
IXML_NodeList *node_list =
ixmlDocument_getElementsByTagName(response , "ConnectionID");
if (node_list)
{
IXML_Node* node = ixmlNodeList_item(node_list, 0);
if (node)
{
IXML_Node* p_text_node = ixmlNode_getFirstChild(node);
if (p_text_node)
{
ConnectionID.assign(ixmlNode_getNodeValue(p_text_node));
}
}
ixmlNodeList_free(node_list);
}
node_list =
ixmlDocument_getElementsByTagName(response , "AVTransportID");
if (node_list)
{
IXML_Node* node = ixmlNodeList_item(node_list, 0);
if (node)
{
IXML_Node* p_text_node = ixmlNode_getFirstChild(node);
if (p_text_node)
{
AVTransportID.assign(ixmlNode_getNodeValue(p_text_node));
}
}
ixmlNodeList_free(node_list);
}
node_list =
ixmlDocument_getElementsByTagName(response , "RcsID");
if (node_list)
{
IXML_Node* node = ixmlNodeList_item(node_list, 0);
if (node)
{
IXML_Node* p_text_node = ixmlNode_getFirstChild(node);
if (p_text_node)
{
RcsID.assign(ixmlNode_getNodeValue(p_text_node));
}
}
ixmlNodeList_free(node_list);
}
ixmlDocument_free(response);
return VLC_SUCCESS;
}
int MediaRenderer::ConnectionComplete()
{
std::list<std::pair<const char*, const char*>> arg_list = {
{"ConnectionID", ConnectionID.c_str()},
};
IXML_Document *p_response = SendAction("ConnectionComplete",
CONNECTION_MANAGER_SERVICE_TYPE, arg_list);
if(!p_response)
{
return VLC_EGENERIC;
}
ixmlDocument_free(p_response);
return VLC_SUCCESS;
}
int MediaRenderer::SetAVTransportURI(const char* uri, const protocol_info_t& proto)
{
static const char didl[] =
"<DIDL-Lite "
"xmlns:dc=\"http://purl.org/dc/elements/1.1/\" "
"xmlns=\"urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/\" "
"xmlns:upnp=\"urn:schemas-upnp-org:metadata-1-0/upnp/\" "
"xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">"
"<item id=\"f-0\" parentID=\"0\" restricted=\"0\">"
"<dc:title>%s</dc:title>"
"<upnp:class>%s</upnp:class>"
"<res protocolInfo=\"%s\">%s</res>"
"</item>"
"</DIDL-Lite>";
bool audio = proto.profile.media == DLNA_CLASS_AUDIO;
std::string dlna_protocol = dlna_write_protocol_info(proto);
char *meta_data;
if (asprintf(&meta_data, didl,
audio ? "Audio" : "Video",
audio ? "object.item.audioItem" : "object.item.videoItem",
dlna_protocol.c_str(),
uri) < 0) {
return VLC_ENOMEM;
}
msg_Dbg(parent, "didl: %s", meta_data);
std::list<std::pair<const char*, const char*>> arg_list = {
{"InstanceID", AVTransportID.c_str()},
{"CurrentURI", uri},
{"CurrentURIMetaData", meta_data},
};
IXML_Document *p_response = SendAction("SetAVTransportURI",
AV_TRANSPORT_SERVICE_TYPE, arg_list);
free(meta_data);
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, const char *es_id)
{
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 nullptr;
}
sout_stream_id_sys_t *p_sys_id = (sout_stream_id_sys_t *)malloc(sizeof(sout_stream_id_sys_t));
if(p_sys_id != nullptr)
{
es_format_Copy(&p_sys_id->fmt, p_fmt);
p_sys_id->es_id = es_id;
p_sys_id->p_sub_id = nullptr;
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 == nullptr )
{
block_Release( p_buffer );
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 == nullptr )
return;
sout_StreamFlush( p_sys->p_out, id_sys );
p_sys->stopSoutChain( p_stream );
p_sys->es_changed = true;
}
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 (auto it = p_sys->streams.begin(); it != p_sys->streams.end(); ++it)
{
sout_stream_id_sys_t *p_sys_id = *it;
if ( p_sys_id == id )
{
if ( p_sys_id->p_sub_id != nullptr )
{
sout_StreamIdDel( p_sys->p_out, p_sys_id->p_sub_id );
for (auto out_it = p_sys->out_streams.begin();
out_it != p_sys->out_streams.end(); ++out_it)
{
if (*out_it == id)
{
p_sys->out_streams.erase(out_it);
break;
}
}
}
es_format_Clean( &p_sys_id->fmt );
free( p_sys_id );
p_sys->streams.erase( it );
break;
}
}
if (p_sys->out_streams.empty())
{
p_sys->stopSoutChain(p_stream);
p_sys->renderer->Stop();
}
}
static void CloseSout( sout_stream_t *p_stream )
{
sout_stream_sys_t *p_sys = static_cast<sout_stream_sys_t *>( p_stream->p_sys );
p_sys->renderer->ConnectionComplete();
p_sys->p_upnp->release();
delete p_sys;
}
static const struct sout_stream_operations ops = [] {
struct sout_stream_operations ops {};
ops.add = Add;
ops.del = Del;
ops.send = Send;
ops.flush = Flush;
ops.close = CloseSout;
return ops;
}();
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 = nullptr;
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 == nullptr)
{
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_sys->device_protocols = p_sys->renderer->GetProtocolInfo();
p_stream->p_sys = p_sys;
p_stream->ops = &ops;
free(base_url);
free(device_url);
return VLC_SUCCESS;
error:
free(base_url);
free(device_url);
delete p_sys;
return VLC_EGENERIC;
}
}
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