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Work-in progress: connection manager now used in Streamer and

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NetworkSource to identify possible connections, and exchange streaming
configuration.
This commit is contained in:
brunoherbelin
2020-10-24 23:53:11 +02:00
parent db0892d25b
commit 7246dfa08e
13 changed files with 459 additions and 519 deletions
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25
Connection.cpp
View File

@@ -8,6 +8,8 @@
#include "defines.h"
#include "Connection.h"
#include "Settings.h"
#include "Streamer.h"
#include "Log.h"
#ifndef NDEBUG
@@ -31,8 +33,8 @@ bool Connection::init()
try {
// increment the port to have unique ports
connections_[0].port_handshake = HANDSHAKE_PORT + trial;
connections_[0].port_stream_send = STREAM_REQUEST_PORT + trial;
connections_[0].port_stream_receive = STREAM_RESPONSE_PORT + trial;
connections_[0].port_stream_request = STREAM_REQUEST_PORT + trial;
connections_[0].port_osc = OSC_DIALOG_PORT + trial;
// try to create listenning socket
// through exception runtime if fails
@@ -44,7 +46,7 @@ bool Connection::init()
// all good
trial = MAX_HANDSHAKE;
}
catch (const std::runtime_error& e) {
catch (const std::runtime_error&) {
// arg, the receiver could not be initialized
// because the port was not available
receiver_ = nullptr;
@@ -59,6 +61,9 @@ bool Connection::init()
std::thread(listen).detach();
// regularly check for available streaming hosts
std::thread(ask).detach();
// restore state of Streamer
Streaming::manager().enable( Settings::application.accept_connections );
}
return receiver_ != nullptr;
@@ -68,6 +73,9 @@ void Connection::terminate()
{
if (receiver_!=nullptr)
receiver_->AsynchronousBreak();
// restore state of Streamer
Streaming::manager().enable( false );
}
@@ -174,6 +182,9 @@ void Connection::ask()
(*it).alive--;
// erase connection if its life score is negative (not responding too many times)
if ( it!=Connection::manager().connections_.begin() && (*it).alive < 0 ) {
// inform streamer to cancel streaming to this client
Streaming::manager().removeStreams( (*it).address );
// remove from list
it = Connection::manager().connections_.erase(it);
#ifdef CONNECTION_DEBUG
Log::Info("A connection was lost");
@@ -213,8 +224,8 @@ void ConnectionRequestListener::ProcessMessage( const osc::ReceivedMessage& m,
p << osc::BeginMessage( OSC_PREFIX OSC_PONG );
p << Connection::manager().connections_[0].name.c_str();
p << Connection::manager().connections_[0].port_handshake;
p << Connection::manager().connections_[0].port_stream_send;
p << Connection::manager().connections_[0].port_stream_receive;
p << Connection::manager().connections_[0].port_stream_request;
p << Connection::manager().connections_[0].port_osc;
p << osc::EndMessage;
// send OSC message to port indicated by remote
@@ -234,8 +245,8 @@ void ConnectionRequestListener::ProcessMessage( const osc::ReceivedMessage& m,
osc::ReceivedMessage::const_iterator arg = m.ArgumentsBegin();
info.name = std::string( (arg++)->AsString() );
info.port_handshake = (arg++)->AsInt32();
info.port_stream_send = (arg++)->AsInt32();
info.port_stream_receive = (arg++)->AsInt32();
info.port_stream_request = (arg++)->AsInt32();
info.port_osc = (arg++)->AsInt32();
// do we know this connection ?
int i = Connection::manager().index(info);

14
Connection.h
View File

@@ -20,17 +20,17 @@ struct ConnectionInfo {
std::string address;
int port_handshake;
int port_stream_send;
int port_stream_receive;
int port_stream_request;
int port_osc;
std::string name;
int alive;
ConnectionInfo () {
address = "127.0.0.1";
port_handshake = HANDSHAKE_PORT;
port_stream_send = STREAM_REQUEST_PORT;
port_stream_receive = STREAM_RESPONSE_PORT;
name = "user@localhost";
port_stream_request = STREAM_REQUEST_PORT;
port_osc = OSC_DIALOG_PORT;
name = "";
alive = ALIVE;
}
@@ -39,8 +39,8 @@ struct ConnectionInfo {
if (this != &o) {
this->address = o.address;
this->port_handshake = o.port_handshake;
this->port_stream_send = o.port_stream_send;
this->port_stream_receive = o.port_stream_receive;
this->port_stream_request = o.port_stream_request;
this->port_osc = o.port_osc;
this->name = o.name;
}
return *this;

2
MediaPlayer.cpp
View File

@@ -75,7 +75,7 @@ guint MediaPlayer::texture() const
static MediaInfo UriDiscoverer_(std::string uri)
{
#ifdef MEDIA_PLAYER_DEBUG
Log::Info("Checking '%s'", uri.c_str());
Log::Info("Checking file '%s'", uri.c_str());
#endif
MediaInfo video_stream_info;

6
Mixer.cpp
View File

@@ -308,14 +308,14 @@ Source * Mixer::createSourceDevice(const std::string &namedevice)
}
Source * Mixer::createSourceNetwork(const std::string &address)
Source * Mixer::createSourceNetwork(const std::string &nameconnection)
{
// ready to create a source
NetworkSource *s = new NetworkSource;
s->setAddress(address);
s->setConnection(nameconnection);
// propose a new name based on address
s->setName(address);
s->setName(nameconnection);
return s;
}

2
Mixer.h
View File

@@ -42,7 +42,7 @@ public:
Source * createSourceStream (const std::string &gstreamerpipeline);
Source * createSourcePattern(uint pattern, glm::ivec2 res);
Source * createSourceDevice (const std::string &namedevice);
Source * createSourceNetwork(const std::string &address);
Source * createSourceNetwork(const std::string &nameconnection);
// operations on sources
void addSource (Source *s);

465
NetworkSource.cpp
View File

@@ -2,6 +2,7 @@
#include <sstream>
#include <thread>
#include <chrono>
#include <future>
#include <glm/gtc/matrix_transform.hpp>
@@ -14,6 +15,7 @@
#include "Decorations.h"
#include "Visitor.h"
#include "Log.h"
#include "Connection.h"
#include "NetworkSource.h"
@@ -21,6 +23,182 @@
#define NETWORK_DEBUG
#endif
// this is called when receiving an answer for streaming request
void StreamerResponseListener::ProcessMessage( const osc::ReceivedMessage& m,
const IpEndpointName& remoteEndpoint )
{
char sender[IpEndpointName::ADDRESS_AND_PORT_STRING_LENGTH];
remoteEndpoint.AddressAndPortAsString(sender);
try{
if( std::strcmp( m.AddressPattern(), OSC_PREFIX OSC_STREAM_OFFER ) == 0 ){
NetworkToolkit::StreamConfig conf;
// someone is offering a stream
osc::ReceivedMessage::const_iterator arg = m.ArgumentsBegin();
conf.port = (arg++)->AsInt32();
conf.protocol = (NetworkToolkit::Protocol) (arg++)->AsInt32();
conf.width = (arg++)->AsInt32();
conf.height = (arg++)->AsInt32();
// we got the offer from Streaming::manager()
parent_->setConfig(conf);
#ifdef NETWORK_DEBUG
Log::Info("Received stream info from %s", sender);
#endif
}
}
catch( osc::Exception& e ){
// any parsing errors such as unexpected argument types, or
// missing arguments get thrown as exceptions.
Log::Info("error while parsing message '%s' from %s : %s", m.AddressPattern(), sender, e.what());
}
}
NetworkStream::NetworkStream(): Stream(), receiver_(nullptr)
{
// listener_port_ = 5400; // TODO Find a free port, unique each time
confirmed_ = false;
}
glm::ivec2 NetworkStream::resolution() const
{
return glm::ivec2(config_.width, config_.height);
}
void wait_for_stream_(UdpListeningReceiveSocket *receiver)
{
receiver->Run();
}
void NetworkStream::open(const std::string &nameconnection)
{
// does this Connection exists?
int streamer_index = Connection::manager().index(nameconnection);
// Nope, cannot connect to unknown connection
if (streamer_index < 0) {
Log::Notify("Cannot connect to %s: please make sure the program is active.", nameconnection);
failed_ = true;
return;
}
// prepare listener to receive stream config from remote streaming manager
listener_.setParent(this);
// find an available port to receive response from remote streaming manager
int listener_port_ = -1;
for (int trial = 0; receiver_ == nullptr && trial < 10 ; trial++) {
try {
// invent a port which would be available
listener_port_ = 72000 + rand()%1000;
// try to create receiver (through exception on fail)
receiver_ = new UdpListeningReceiveSocket(IpEndpointName(Connection::manager().info().address.c_str(), listener_port_), &listener_);
}
catch (const std::runtime_error&) {
receiver_ = nullptr;
}
}
if (receiver_ == nullptr) {
Log::Notify("Cannot open %s.", nameconnection);
failed_ = true;
return;
}
// ok, we can ask to this connected streamer to send us a stream
ConnectionInfo streamer = Connection::manager().info(streamer_index);
IpEndpointName a( streamer.address.c_str(), streamer.port_stream_request );
streamer_address_ = a.address;
streamer_address_ = a.port;
// build OSC message
char buffer[IP_MTU_SIZE];
osc::OutboundPacketStream p( buffer, IP_MTU_SIZE );
p.Clear();
p << osc::BeginMessage( OSC_PREFIX OSC_STREAM_REQUEST );
// send my listening port to indicate to Connection::manager where to reply
p << listener_port_;
p << osc::EndMessage;
// send OSC message to streamer
UdpTransmitSocket socket( streamer_address_ );
socket.Send( p.Data(), p.Size() );
// Now we wait for the offer from the streamer
std::thread(wait_for_stream_, receiver_).detach();
#ifdef NETWORK_DEBUG
Log::Info("Asking %s:%d for a stream", streamer.address.c_str(), streamer.port_stream_request);
Log::Info("Waiting for response at %s:%d", Connection::manager().info().address.c_str(), listener_port_);
#endif
}
void NetworkStream::close()
{
if (receiver_)
delete receiver_;
// build OSC message to inform disconnection
char buffer[IP_MTU_SIZE];
osc::OutboundPacketStream p( buffer, IP_MTU_SIZE );
p.Clear();
p << osc::BeginMessage( OSC_PREFIX OSC_STREAM_DISCONNECT );
p << config_.port; // send my stream port to identify myself to the streamer Connection::manager
p << osc::EndMessage;
// send OSC message to streamer
UdpTransmitSocket socket( streamer_address_ );
socket.Send( p.Data(), p.Size() );
}
void NetworkStream::setConfig(NetworkToolkit::StreamConfig conf)
{
config_ = conf;
confirmed_ = true;
}
void NetworkStream::update()
{
Stream::update();
if ( !ready_ && !failed_ && confirmed_)
{
// stop receiving streamer info
receiver_->AsynchronousBreak();
#ifdef NETWORK_DEBUG
Log::Info("Creating Network Stream %d %d x %d", config_.port, config_.width, config_.height);
#endif
// build the pipeline depending on stream info
std::ostringstream pipeline;
if (config_.protocol == NetworkToolkit::TCP_JPEG || config_.protocol == NetworkToolkit::TCP_H264) {
pipeline << "tcpclientsrc name=src timeout=1 port=" << config_.port;
}
else if (config_.protocol == NetworkToolkit::SHM_RAW) {
std::string path = SystemToolkit::full_filename(SystemToolkit::settings_path(), "shm");
path += std::to_string(config_.port);
pipeline << "shmsrc name=src is-live=true socket-path=" << path;
// TODO rename SHM socket "shm_PORT"
}
pipeline << NetworkToolkit::protocol_receive_pipeline[config_.protocol];
pipeline << " ! videoconvert";
// open the pipeline with generic stream class
Stream::open(pipeline.str(), config_.width, config_.height);
}
}
NetworkSource::NetworkSource() : StreamSource()
{
// create stream
@@ -31,29 +209,31 @@ NetworkSource::NetworkSource() : StreamSource()
overlays_[View::LAYER]->attach( new Symbol(Symbol::EMPTY, glm::vec3(0.8f, 0.8f, 0.01f)) );
}
void NetworkSource::setAddress(const std::string &address)
NetworkSource::~NetworkSource()
{
address_ = address;
Log::Notify("Creating Network Source '%s'", address_.c_str());
networkStream()->close();
}
// // extract host and port from "host:port"
// std::string host = address.substr(0, address.find_last_of(":"));
// std::string port_s = address.substr(address.find_last_of(":") + 1);
// uint port = std::stoi(port_s);
NetworkStream *NetworkSource::networkStream() const
{
return dynamic_cast<NetworkStream *>(stream_);
}
// // validate protocol
// if (protocol < NetworkToolkit::TCP_JPEG || protocol >= NetworkToolkit::DEFAULT)
// protocol = NetworkToolkit::TCP_JPEG;
void NetworkSource::setConnection(const std::string &nameconnection)
{
connection_name_ = nameconnection;
Log::Notify("Creating Network Source '%s'", connection_name_.c_str());
// // open network stream
// networkstream()->open( protocol, host, port );
// stream_->play(true);
// open network stream
networkStream()->open( connection_name_ );
stream_->play(true);
}
std::string NetworkSource::address() const
std::string NetworkSource::connection() const
{
return address_;
return connection_name_;
}
@@ -65,259 +245,4 @@ void NetworkSource::accept(Visitor& v)
}
void NetworkHosts::listen()
{
Log::Info("Accepting Streaming responses on port %d", STREAM_RESPONSE_PORT);
NetworkHosts::manager().receiver_->Run();
Log::Info("Refusing Streaming responses");
}
void NetworkHosts::ask()
{
Log::Info("Broadcasting Streaming requests on port %d", STREAM_REQUEST_PORT);
IpEndpointName host( "255.255.255.255", STREAM_REQUEST_PORT );
UdpTransmitSocket socket( host );
socket.SetEnableBroadcast(true);
char buffer[IP_MTU_SIZE];
osc::OutboundPacketStream p( buffer, IP_MTU_SIZE );
p.Clear();
p << osc::BeginMessage( OSC_PREFIX OSC_STREAM_REQUEST ) << osc::EndMessage;
while(true)
{
socket.Send( p.Data(), p.Size() );
std::this_thread::sleep_for(std::chrono::milliseconds(500));
}
}
// this is called when receiving an answer for streaming request
void HostsResponsesListener::ProcessMessage( const osc::ReceivedMessage& m,
const IpEndpointName& remoteEndpoint )
{
char sender[IpEndpointName::ADDRESS_AND_PORT_STRING_LENGTH];
remoteEndpoint.AddressAndPortAsString(sender);
std::string se(sender);
std::string senderip = se.substr(0, se.find_last_of(":"));
try{
if( std::strcmp( m.AddressPattern(), OSC_PREFIX OSC_STREAM_OFFER ) == 0 ){
// someone is offering a stream
osc::ReceivedMessage::const_iterator arg = m.ArgumentsBegin();
const char *address = (arg++)->AsString();
int p = (arg++)->AsInt32();
int w = (arg++)->AsInt32();
int h = (arg++)->AsInt32();
Log::Info("Able to receive %s %d x %d stream from %s ", address, w, h, senderip.c_str());
NetworkHosts::manager().addHost(address, p, w, h);
}
else if( std::strcmp( m.AddressPattern(), OSC_PREFIX OSC_STREAM_RETRACT ) == 0 ){
// someone is retracting a stream
osc::ReceivedMessage::const_iterator arg = m.ArgumentsBegin();
const char *address = (arg++)->AsString();
NetworkHosts::manager().removeHost(address);
}
}
catch( osc::Exception& e ){
// any parsing errors such as unexpected argument types, or
// missing arguments get thrown as exceptions.
Log::Info("error while parsing message '%s' from %s : %s", m.AddressPattern(), sender, e.what());
}
}
NetworkHosts::NetworkHosts()
{
// // listen for answers
// receiver_ = new UdpListeningReceiveSocket(IpEndpointName( IpEndpointName::ANY_ADDRESS, STREAM_RESPONSE_PORT ), &listener_ );
// std::thread(listen).detach();
// // regularly check for available streaming hosts
// std::thread(ask).detach();
}
void NetworkHosts::addHost(const std::string &address, int protocol, int width, int height)
{
// add only new
if (disconnected(address)) {
src_address_.push_back(address);
// TODO : fill description
src_description_.push_back(address);
list_uptodate_ = false;
}
}
void NetworkHosts::removeHost(const std::string &address)
{
// remove existing only
if (connected(address)) {
std::vector< std::string >::iterator addrit = src_address_.begin();
std::vector< std::string >::iterator descit = src_description_.begin();
while (addrit != src_address_.end()){
if ( (*addrit).compare(address) == 0 )
{
src_address_.erase(addrit);
src_description_.erase(descit);
break;
}
addrit++;
descit++;
}
list_uptodate_ = false;
}
}
int NetworkHosts::numHosts() const
{
return src_address_.size();
}
std::string NetworkHosts::name(int index) const
{
if (index > -1 && index < (int) src_address_.size())
return src_address_[index];
else
return "";
}
std::string NetworkHosts::description(int index) const
{
if (index > -1 && index < (int) src_description_.size())
return src_description_[index];
else
return "";
}
int NetworkHosts::index(const std::string &address) const
{
int i = -1;
std::vector< std::string >::const_iterator p = std::find(src_address_.begin(), src_address_.end(), address);
if (p != src_address_.end())
i = std::distance(src_address_.begin(), p);
return i;
}
bool NetworkHosts::connected(const std::string &address) const
{
std::vector< std::string >::const_iterator d = std::find(src_address_.begin(), src_address_.end(), address);
return d != src_address_.end();
}
bool NetworkHosts::disconnected(const std::string &address) const
{
if (list_uptodate_)
return false;
return !connected(address);
}
struct hasAddress: public std::unary_function<NetworkSource*, bool>
{
inline bool operator()(const NetworkSource* elem) const {
return (elem && elem->address() == _a);
}
hasAddress(std::string a) : _a(a) { }
private:
std::string _a;
};
Source *NetworkHosts::createSource(const std::string &address) const
{
Source *s = nullptr;
// find if a DeviceSource with this device is already registered
std::list< NetworkSource *>::const_iterator d = std::find_if(network_sources_.begin(), network_sources_.end(), hasAddress(address));
// if already registered, clone the device source
if ( d != network_sources_.end()) {
CloneSource *cs = (*d)->clone();
s = cs;
}
// otherwise, we are free to create a new Network source
else {
NetworkSource *ns = new NetworkSource();
ns->setAddress(address);
s = ns;
}
return s;
}
NetworkStream::NetworkStream(): Stream(), protocol_(NetworkToolkit::DEFAULT), host_("127.0.0.1"), port_(5000)
{
}
glm::ivec2 NetworkStream::resolution()
{
return glm::ivec2( width_, height_);
}
void NetworkStream::open(NetworkToolkit::Protocol protocol, const std::string &host, uint port )
{
protocol_ = protocol;
host_ = host;
port_ = port;
int w = 1920;
int h = 1080;
std::ostringstream pipeline;
if (protocol_ == NetworkToolkit::TCP_JPEG || protocol_ == NetworkToolkit::TCP_H264) {
pipeline << "tcpclientsrc name=src timeout=1 host=" << host_ << " port=" << port_;
}
else if (protocol_ == NetworkToolkit::SHM_RAW) {
std::string path = SystemToolkit::full_filename(SystemToolkit::settings_path(), "shm_socket");
pipeline << "shmsrc name=src is-live=true socket-path=" << path;
// TODO SUPPORT multiple sockets shared memory
}
pipeline << NetworkToolkit::protocol_receive_pipeline[protocol_];
pipeline << " ! videoconvert";
// if ( ping(&w, &h) )
// (private) open stream
Stream::open(pipeline.str(), w, h);
// else {
// Log::Notify("Failed to connect to %s:%d", host.c_str(), port);
// failed_ = true;
// }
}

123
NetworkSource.h
View File

@@ -9,81 +9,16 @@
#include "NetworkToolkit.h"
#include "StreamSource.h"
class NetworkSource : public StreamSource
class NetworkStream;
class StreamerResponseListener : public osc::OscPacketListener
{
std::string address_;
public:
NetworkSource();
// Source interface
void accept (Visitor& v) override;
// StreamSource interface
Stream *stream() const override { return stream_; }
// specific interface
void setAddress(const std::string &address);
std::string address() const;
glm::ivec2 icon() const override { return glm::ivec2(11, 8); }
};
class HostsResponsesListener : public osc::OscPacketListener {
protected:
class NetworkStream *parent_;
virtual void ProcessMessage( const osc::ReceivedMessage& m,
const IpEndpointName& remoteEndpoint );
};
class NetworkHosts
{
friend class NetworkSource;
friend class HostsResponsesListener;
NetworkHosts();
NetworkHosts(NetworkHosts const& copy); // Not Implemented
NetworkHosts& operator=(NetworkHosts const& copy); // Not Implemented
public:
static NetworkHosts& manager()
{
// The only instance
static NetworkHosts _instance;
return _instance;
}
int numHosts () const;
std::string name (int index) const;
std::string description (int index) const;
int index (const std::string &address) const;
bool connected (const std::string &address) const;
bool disconnected (const std::string &address) const;
Source *createSource(const std::string &address) const;
private:
std::vector< std::string > src_address_;
std::vector< std::string > src_description_;
bool list_uptodate_;
std::list< NetworkSource * > network_sources_;
static void ask();
static void listen();
HostsResponsesListener listener_;
UdpListeningReceiveSocket *receiver_;
void addHost(const std::string &address, int protocol, int width, int height);
void removeHost(const std::string &address);
inline void setParent(NetworkStream *s) { parent_ = s; }
};
@@ -92,20 +27,52 @@ class NetworkStream : public Stream
public:
NetworkStream();
void open(NetworkToolkit::Protocol protocol, const std::string &host, uint port );
void open(const std::string &nameconnection);
void close();
glm::ivec2 resolution();
void setConfig(NetworkToolkit::StreamConfig conf);
void update() override;
inline NetworkToolkit::Protocol protocol() const { return protocol_; }
inline std::string host() const { return host_; }
inline uint port() const { return port_; }
glm::ivec2 resolution() const;
inline NetworkToolkit::Protocol protocol() const { return config_.protocol; }
inline std::string IP() const { return config_.client_address; }
inline uint port() const { return config_.port; }
private:
NetworkToolkit::Protocol protocol_;
std::string host_;
uint port_;
// connection information
IpEndpointName streamer_address_;
// int listener_port_;
StreamerResponseListener listener_;
UdpListeningReceiveSocket *receiver_;
std::atomic<bool> confirmed_;
NetworkToolkit::StreamConfig config_;
};
class NetworkSource : public StreamSource
{
std::string connection_name_;
public:
NetworkSource();
~NetworkSource();
// Source interface
void accept (Visitor& v) override;
// StreamSource interface
Stream *stream() const override { return stream_; }
NetworkStream *networkStream() const;
// specific interface
void setConnection(const std::string &nameconnection);
std::string connection() const;
glm::ivec2 icon() const override { return glm::ivec2(11, 8); }
};
#endif // NETWORKSOURCE_H

4
NetworkToolkit.cpp
View File

@@ -60,8 +60,8 @@ const std::vector<std::string> NetworkToolkit::protocol_receive_pipeline {
* SND
* gst-launch-1.0 videotestsrc is-live=true ! jpegenc ! rtpjpegpay ! multiudpsink clients="127.0.0.1:5000,127.0.0.1:5001"
* RCV
* gst-launch-1.0 -v udpsrc address=127.0.0.1 port=5000 ! application/x-rtp,encoding-name=JPEG,payload=26 ! rtpjpegdepay ! jpegdec ! autovideosink
* gst-launch-1.0 -v udpsrc address=127.0.0.1 port=5001 ! application/x-rtp,encoding-name=JPEG,payload=26 ! rtpjpegdepay ! jpegdec ! autovideosink
* gst-launch-1.0 -v udpsrc port=5000 ! application/x-rtp,encoding-name=JPEG,payload=26 ! rtpjpegdepay ! jpegdec ! autovideosink
* gst-launch-1.0 -v udpsrc port=5001 ! application/x-rtp,encoding-name=JPEG,payload=26 ! rtpjpegdepay ! jpegdec ! autovideosink
*
* RAW UDP (caps has to match exactly, and depends on resolution)
* SND

39
NetworkToolkit.h
View File

@@ -9,15 +9,13 @@
#define OSC_PONG "/pong"
#define OSC_STREAM_REQUEST "/request"
#define OSC_STREAM_OFFER "/offer"
#define OSC_STREAM_RETRACT "/retract"
#define OSC_STREAM_CONNECT "/connect"
#define OSC_STREAM_DISCONNECT "/disconnect"
#define MAX_HANDSHAKE 10
#define MAX_HANDSHAKE 20
#define HANDSHAKE_PORT 71310
#define STREAM_REQUEST_PORT 71510
#define STREAM_RESPONSE_PORT 71610
#define OSC_DIALOG_PORT 71010
#define IP_MTU_SIZE 1536
namespace NetworkToolkit
@@ -30,16 +28,45 @@ typedef enum {
DEFAULT
} Protocol;
struct StreamConfig {
std::string client_address;
int port;
Protocol protocol;
int width;
int height;
StreamConfig () {
client_address = "127.0.0.1";
port = 0;
protocol = DEFAULT;
width = 0;
height = 0;
}
inline StreamConfig& operator = (const StreamConfig& o)
{
if (this != &o) {
this->client_address = o.client_address;
this->port = o.port;
this->protocol = o.protocol;
this->width = o.width;
this->height = o.height;
}
return *this;
}
};
extern const char* protocol_name[DEFAULT];
extern const std::vector<std::string> protocol_send_pipeline;
extern const std::vector<std::string> protocol_receive_pipeline;
std::string hostname();
std::vector<std::string> host_ips();
bool is_host_ip(const std::string &ip);
std::string closest_host_ip(const std::string &ip);
std::string hostname();
}
#endif // NETWORKTOOLKIT_H

20
Settings.cpp
View File

@@ -90,13 +90,6 @@ void Settings::Save()
RecordNode->SetAttribute("timeout", application.record.timeout);
pRoot->InsertEndChild(RecordNode);
// // Record
// XMLElement *StreamNode = xmlDoc.NewElement( "Stream" );
// StreamNode->SetAttribute("profile", application.stream.profile);
// StreamNode->SetAttribute("ip", application.stream.ip.c_str());
// StreamNode->SetAttribute("port", application.stream.port);
// pRoot->InsertEndChild(StreamNode);
// Transition
XMLElement *TransitionNode = xmlDoc.NewElement( "Transition" );
TransitionNode->SetAttribute("auto_open", application.transition.auto_open);
@@ -262,19 +255,6 @@ void Settings::Load()
application.record.path = SystemToolkit::home_path();
}
// // Stream
// XMLElement * streamnode = pRoot->FirstChildElement("Stream");
// if (streamnode != nullptr) {
// streamnode->QueryIntAttribute("profile", &application.stream.profile);
// streamnode->QueryIntAttribute("port", &application.stream.port);
// const char *ip_ = streamnode->Attribute("ip");
// if (ip_)
// application.stream.ip = std::string(ip_);
// else
// application.stream.ip = "localhost";
// }
// Source
XMLElement * sourceconfnode = pRoot->FirstChildElement("Source");
if (sourceconfnode != nullptr) {

14
Settings.h
View File

@@ -75,19 +75,6 @@ struct RecordConfig
};
//struct StreamingConfig
//{
// std::string ip;
// int port;
// int profile;
// StreamingConfig() : ip("localhost") {
// profile = 0;
// port = 5400;
// }
//};
struct History
{
std::string path;
@@ -202,7 +189,6 @@ struct Application
// settings exporters
RecordConfig record;
// StreamingConfig stream;
// settings new source
SourceConfig source;

227
Streamer.cpp
View File

@@ -22,12 +22,17 @@
#include "FrameBuffer.h"
#include "Log.h"
#include "Connection.h"
#include "NetworkToolkit.h"
#include "Streamer.h"
#include <iostream>
#include <cstring>
#ifndef NDEBUG
#define STREAMER_DEBUG
#endif
// this is called when a U
void StreamingRequestListener::ProcessMessage( const osc::ReceivedMessage& m,
const IpEndpointName& remoteEndpoint )
@@ -39,19 +44,23 @@ void StreamingRequestListener::ProcessMessage( const osc::ReceivedMessage& m,
if( std::strcmp( m.AddressPattern(), OSC_PREFIX OSC_STREAM_REQUEST) == 0 ){
Log::Info("%s wants to know if i can stream", sender);
Streaming::manager().makeOffer(sender);
}
else if( std::strcmp( m.AddressPattern(), OSC_PREFIX OSC_STREAM_CONNECT) == 0 ){
Log::Info("%s wants me stream", sender);
osc::ReceivedMessage::const_iterator arg = m.ArgumentsBegin();
int reply_to_port = (arg++)->AsInt32();
Streaming::manager().addStream(sender, reply_to_port);
#ifdef STREAMER_DEBUG
Log::Info("%s wants a stream.", sender);
#endif
}
else if( std::strcmp( m.AddressPattern(), OSC_PREFIX OSC_STREAM_DISCONNECT) == 0 ){
Log::Info("%s ended reception", sender);
osc::ReceivedMessage::const_iterator arg = m.ArgumentsBegin();
int port = (arg++)->AsInt32();
Streaming::manager().removeStream(sender, port);
#ifdef STREAMER_DEBUG
Log::Info("%s does not need streaming anymore.", sender);
#endif
}
}
catch( osc::Exception& e ){
@@ -64,33 +73,32 @@ void StreamingRequestListener::ProcessMessage( const osc::ReceivedMessage& m,
Streaming::Streaming() : session_(nullptr), width_(0), height_(0)
{
// receiver_ = new UdpListeningReceiveSocket(IpEndpointName( IpEndpointName::ANY_ADDRESS, STREAM_REQUEST_PORT ), &listener_ );
//// receiver_ = new UdpListeningReceiveSocket(IpEndpointName( IpEndpointName::ANY_ADDRESS, STREAM_REQUEST_PORT ), &listener_ );
int port = Connection::manager().info().port_stream_request;
receiver_ = new UdpListeningReceiveSocket(IpEndpointName( IpEndpointName::ANY_ADDRESS, port ), &listener_ );
}
void Streaming::listen()
void wait_for_request_(UdpListeningReceiveSocket *receiver)
{
Log::Info("Accepting Streaming requests on port %d", STREAM_REQUEST_PORT);
Streaming::manager().receiver_->Run();
Log::Info("Refusing Streaming requests");
receiver->Run();
}
void Streaming::enable(bool on)
{
// if (on){
// std::thread(listen).detach();
// }
// else {
// // end streaming requests
// receiver_->AsynchronousBreak();
// // end all streaming TODO
// }
if (on) {
std::thread(wait_for_request_, receiver_).detach();
Log::Info("Accepting stream requests to %s.", Connection::manager().info().name.c_str());
}
else {
// end streaming requests
receiver_->AsynchronousBreak();
// end all streaming
for (auto sit = streamers_.begin(); sit != streamers_.end(); sit=streamers_.erase(sit))
(*sit)->stop();
Log::Info("Refusing stream requests to %s. No streaming ongoing.", Connection::manager().info().name.c_str());
}
}
void Streaming::setSession(Session *se)
{
if (se != nullptr && session_ != se) {
@@ -106,73 +114,110 @@ void Streaming::setSession(Session *se)
}
}
void Streaming::makeOffer(const std::string &client)
void Streaming::removeStream(const std::string &sender, int port)
{
// do not reply if no session can be streamed (should not happen)
if (session_ == nullptr)
return;
// get ip of sender
std::string sender_ip = sender.substr(0, sender.find_last_of(":"));
// parse the list for a streamers matching IP and port
std::vector<VideoStreamer *>::const_iterator sit = streamers_.begin();
for (; sit != streamers_.end(); sit++){
NetworkToolkit::StreamConfig config = (*sit)->config_;
if (config.client_address.compare(sender_ip) == 0 && config.port == port ) {
#ifdef STREAMER_DEBUG
Log::Info("Ending streaming to %s:%d", config.client_address.c_str(), config.port);
#endif
// match: stop this streamer
(*sit)->stop();
// remove from list
streamers_.erase(sit);
break;
}
}
}
void Streaming::removeStreams(const std::string &ip)
{
// remove all streamers matching given IP
std::vector<VideoStreamer *>::const_iterator sit = streamers_.begin();
while ( sit != streamers_.end() ){
NetworkToolkit::StreamConfig config = (*sit)->config_;
if (config.client_address.compare(ip) == 0) {
#ifdef STREAMER_DEBUG
Log::Info("Ending streaming to %s:%d", config.client_address.c_str(), config.port);
#endif
// match: stop this streamer
(*sit)->stop();
// remove from list
sit = streamers_.erase(sit);
}
else
sit++;
}
}
void Streaming::addStream(const std::string &sender, int reply_to)
{
// get ip of client
std::string clientip = client.substr(0, client.find_last_of(":"));
// get port used to request
std::string clientport_s = client.substr(client.find_last_of(":") + 1);
std::string sender_ip = sender.substr(0, sender.find_last_of(":"));
// get port used to send the request
std::string sender_port = sender.substr(sender.find_last_of(":") + 1);
// prepare to reply to client
IpEndpointName host( clientip.c_str(), STREAM_RESPONSE_PORT );
IpEndpointName host( sender_ip.c_str(), reply_to );
UdpTransmitSocket socket( host );
// prepare an offer
offer o;
o.client = clientip;
o.width = width_;
o.height = height_;
NetworkToolkit::StreamConfig conf;
conf.client_address = sender_ip;
conf.port = std::stoi(sender_port); // this port seems free, so re-use it!
conf.width = width_;
conf.height = height_;
// offer SHM if same IP that our host IP (i.e. on the same machine)
if( NetworkToolkit::is_host_ip(clientip) ){
// this port seems free, so re-use it!
o.address = "localhost:" + clientport_s;
o.protocol = NetworkToolkit::SHM_RAW;
if( NetworkToolkit::is_host_ip(conf.client_address) ) {
conf.protocol = NetworkToolkit::SHM_RAW;
}
// any other IP : offer UDP streaming
else {
o.address = NetworkToolkit::closest_host_ip(clientip) + ":" + clientport_s;
o.protocol = NetworkToolkit::TCP_JPEG;
conf.protocol = NetworkToolkit::TCP_JPEG;
}
// build message
// build OSC message
char buffer[IP_MTU_SIZE];
osc::OutboundPacketStream p( buffer, IP_MTU_SIZE );
p.Clear();
p << osc::BeginMessage( OSC_PREFIX OSC_STREAM_OFFER );
p << o.address.c_str();
p << (int) o.protocol;
p << o.width << o.height;
p << conf.port;
p << (int) conf.protocol;
p << conf.width << conf.height;
p << osc::EndMessage;
// send OSC message
// send OSC message to client
socket.Send( p.Data(), p.Size() );
#ifdef STREAMER_DEBUG
Log::Info("Accepting stream request from %s:%d", sender_ip.c_str(), reply_to);
#endif
// create streamer & remember it
VideoStreamer *streamer = new VideoStreamer(conf);
streamers_.push_back(streamer);
// start streamer
session_->addFrameGrabber(streamer);
}
void Streaming::addStream(const std::string &address)
{
}
void Streaming::removeStream(const std::string &address)
{
}
VideoStreamer::VideoStreamer(Streaming::offer config): FrameGrabber(), frame_buffer_(nullptr), width_(0), height_(0),
VideoStreamer::VideoStreamer(NetworkToolkit::StreamConfig conf): FrameGrabber(), frame_buffer_(nullptr), width_(0), height_(0),
streaming_(false), accept_buffer_(false), pipeline_(nullptr), src_(nullptr), timestamp_(0)
{
// configure fix parameter
frame_duration_ = gst_util_uint64_scale_int (1, GST_SECOND, 30); // 30 FPS
timeframe_ = 2 * frame_duration_;
protocol_ = config.protocol;
address_ = config.address;
width_ = config.width;
height_ = config.height;
config_ = conf;
}
VideoStreamer::~VideoStreamer()
@@ -203,11 +248,19 @@ void VideoStreamer::addFrame (FrameBuffer *frame_buffer, float dt)
// set frame buffer as input
frame_buffer_ = frame_buffer;
// define stream properties
// define frames properties
width_ = frame_buffer_->width();
height_ = frame_buffer_->height();
size_ = width_ * height_ * (frame_buffer_->use_alpha() ? 4 : 3);
// if an incompatilble frame buffer given: cancel streaming
if ( config_.width != width_ || config_.height != height_) {
Log::Warning("Streaming cannot start: given frames (%d x %d) incompatible with stream (%d x %d)",
width_, height_, config_.width, config_.height);
finished_ = true;
return;
}
// create PBOs
glGenBuffers(2, pbo_);
glBindBuffer(GL_PIXEL_PACK_BUFFER, pbo_[1]);
@@ -218,9 +271,9 @@ void VideoStreamer::addFrame (FrameBuffer *frame_buffer, float dt)
// create a gstreamer pipeline
std::string description = "appsrc name=src ! videoconvert ! ";
if (protocol_ < 0 || protocol_ >= NetworkToolkit::DEFAULT)
protocol_ = NetworkToolkit::TCP_JPEG;
description += NetworkToolkit::protocol_send_pipeline[protocol_];
if (config_.protocol < 0 || config_.protocol >= NetworkToolkit::DEFAULT)
config_.protocol = NetworkToolkit::TCP_JPEG;
description += NetworkToolkit::protocol_send_pipeline[config_.protocol];
// parse pipeline descriptor
GError *error = NULL;
@@ -233,18 +286,15 @@ void VideoStreamer::addFrame (FrameBuffer *frame_buffer, float dt)
}
// setup streaming sink
if (protocol_ == NetworkToolkit::TCP_JPEG || protocol_ == NetworkToolkit::TCP_H264) {
// extract host and port from "host:port"
std::string ip = address_.substr(0, address_.find_last_of(":"));
std::string port_s = address_.substr(address_.find_last_of(":") + 1);
uint port = std::stoi(port_s);
if (config_.protocol == NetworkToolkit::TCP_JPEG || config_.protocol == NetworkToolkit::TCP_H264) {
g_object_set (G_OBJECT (gst_bin_get_by_name (GST_BIN (pipeline_), "sink")),
"host", ip.c_str(),
"port", port, NULL);
"host", config_.client_address.c_str(),
"port", config_.port, NULL);
}
else if (protocol_ == NetworkToolkit::SHM_RAW) {
std::string path = SystemToolkit::full_filename(SystemToolkit::settings_path(), "shm_socket");
SystemToolkit::remove_file(path);
else if (config_.protocol == NetworkToolkit::SHM_RAW) {
// TODO rename SHM socket "shm_PORT"
std::string path = SystemToolkit::full_filename(SystemToolkit::settings_path(), "shm");
path += std::to_string(config_.port);
g_object_set (G_OBJECT (gst_bin_get_by_name (GST_BIN (pipeline_), "sink")),
"socket-path", path.c_str(), NULL);
}
@@ -257,7 +307,6 @@ void VideoStreamer::addFrame (FrameBuffer *frame_buffer, float dt)
"stream-type", GST_APP_STREAM_TYPE_STREAM,
"is-live", TRUE,
"format", GST_FORMAT_TIME,
// "do-timestamp", TRUE,
NULL);
// Direct encoding (no buffering)
@@ -296,9 +345,7 @@ void VideoStreamer::addFrame (FrameBuffer *frame_buffer, float dt)
}
// all good
Log::Info("VideoStreamer start (%s %d x %d)", NetworkToolkit::protocol_name[protocol_], width_, height_);
Log::Info("%s", description.c_str());
Log::Info("VideoStreamer start (%s %d x %d)", config_.client_address.c_str(), width_, height_);
// start streaming !!
streaming_ = true;
@@ -393,15 +440,14 @@ Log::Info("%s", description.c_str());
}
}
// did the recording terminate with sink receiving end-of-stream ?
// did the streaming terminate with sink receiving end-of-stream ?
else
{
// Wait for EOS message
GstBus *bus = gst_pipeline_get_bus(GST_PIPELINE(pipeline_));
GstMessage *msg = gst_bus_poll(bus, GST_MESSAGE_EOS, GST_TIME_AS_USECONDS(1));
GstMessage *msg = gst_bus_poll(bus, GST_MESSAGE_EOS, GST_TIME_AS_USECONDS(4));
if (msg) {
// Log::Info("received EOS");
// stop the pipeline
GstStateChangeReturn ret = gst_element_set_state (pipeline_, GST_STATE_NULL);
if (ret == GST_STATE_CHANGE_FAILURE)
@@ -413,8 +459,10 @@ Log::Info("%s", description.c_str());
}
// make sure the shared memory socket is deleted
if (protocol_ == NetworkToolkit::SHM_RAW) {
std::string path = SystemToolkit::full_filename(SystemToolkit::settings_path(), "shm_socket");
if (config_.protocol == NetworkToolkit::SHM_RAW) {
// TODO rename SHM socket "shm_PORT"
std::string path = SystemToolkit::full_filename(SystemToolkit::settings_path(), "shm");
path += std::to_string(config_.port);
SystemToolkit::remove_file(path);
}
}
@@ -424,12 +472,13 @@ Log::Info("%s", description.c_str());
void VideoStreamer::stop ()
{
// stop recording
streaming_ = false;
// send end of stream
if (src_)
gst_app_src_end_of_stream (src_);
// stop recording
streaming_ = false;
}
std::string VideoStreamer::info()
@@ -437,13 +486,13 @@ std::string VideoStreamer::info()
std::string ret = "Streaming terminated.";
if (streaming_) {
if (protocol_ == NetworkToolkit::TCP_JPEG || protocol_ == NetworkToolkit::TCP_H264) {
if (config_.protocol == NetworkToolkit::TCP_JPEG || config_.protocol == NetworkToolkit::TCP_H264) {
ret = "TCP";
}
else if (protocol_ == NetworkToolkit::SHM_RAW) {
else if (config_.protocol == NetworkToolkit::SHM_RAW) {
ret = "Shared Memory";
}

35
Streamer.h
View File

@@ -12,6 +12,7 @@
#include "FrameGrabber.h"
class Session;
class VideoStreamer;
class StreamingRequestListener : public osc::OscPacketListener {
@@ -22,6 +23,8 @@ protected:
class Streaming
{
friend class StreamingRequestListener;
// Private Constructor
Streaming();
Streaming(Streaming const& copy); // Not Implemented
@@ -38,44 +41,36 @@ public:
void enable(bool on);
void setSession(Session *se);
void removeStreams(const std::string &ip);
typedef struct {
std::string client;
std::string address;
NetworkToolkit::Protocol protocol;
int width;
int height;
} offer;
void makeOffer(const std::string &client);
void retractOffer(offer o);
void addStream(const std::string &address);
void removeStream(const std::string &address);
protected:
void addStream(const std::string &sender, int reply_to);
void removeStream(const std::string &sender, int port);
private:
std::string hostname_;
static void listen();
StreamingRequestListener listener_;
UdpListeningReceiveSocket *receiver_;
Session *session_;
int width_;
int height_;
std::vector<offer> offers_;
// TODO Mutex to protect access to list of streamers
std::vector<VideoStreamer *> streamers_;
};
class VideoStreamer : public FrameGrabber
{
friend class Streaming;
// Frame buffer information
FrameBuffer *frame_buffer_;
uint width_;
uint height_;
//
NetworkToolkit::Protocol protocol_;
std::string address_;
// connection information
NetworkToolkit::StreamConfig config_;
// operation
std::atomic<bool> streaming_;
@@ -93,7 +88,7 @@ class VideoStreamer : public FrameGrabber
public:
VideoStreamer(Streaming::offer config);
VideoStreamer(NetworkToolkit::StreamConfig conf);
~VideoStreamer();
void addFrame(FrameBuffer *frame_buffer, float dt) override;