Files
vimix/ControlManager.cpp

757 lines
29 KiB
C++

/*
* This file is part of vimix - video live mixer
*
* **Copyright** (C) 2020-2021 Bruno Herbelin <bruno.herbelin@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
**/
#include <thread>
#include <mutex>
#include <sstream>
#include <iomanip>
#include "osc/OscOutboundPacketStream.h"
#include "defines.h"
#include "Log.h"
#include "Settings.h"
#include "BaseToolkit.h"
#include "Mixer.h"
#include "Source.h"
#include "ActionManager.h"
#include "SystemToolkit.h"
#include "tinyxml2Toolkit.h"
#include "ControlManager.h"
#ifndef NDEBUG
#define CONTROL_DEBUG
#endif
#define CONTROL_OSC_MSG "OSC: "
void Control::RequestListener::ProcessMessage( const osc::ReceivedMessage& m,
const IpEndpointName& remoteEndpoint )
{
char sender[IpEndpointName::ADDRESS_AND_PORT_STRING_LENGTH];
remoteEndpoint.AddressAndPortAsString(sender);
try{
#ifdef CONTROL_DEBUG
Log::Info(CONTROL_OSC_MSG "received '%s' from %s", FullMessage(m).c_str(), sender);
#endif
// Preprocessing with Translator
std::string address_pattern = Control::manager().translate(m.AddressPattern());
// structured OSC address
std::list<std::string> address = BaseToolkit::splitted(address_pattern, OSC_SEPARATOR);
//
// A wellformed OSC address is in the form '/vimix/target/attribute {arguments}'
// First test: should have 3 elements and start with APP_NAME ('vimix')
//
if (address.size() > 2 && address.front().compare(OSC_PREFIX) == 0 ){
// done with the first part of the OSC address
address.pop_front();
// next part of the OSC message is the target
std::string target = address.front();
// next part of the OSC message is the attribute
address.pop_front();
std::string attribute = address.front();
// Log target: just print text in log window
if ( target.compare(OSC_INFO) == 0 )
{
if ( attribute.compare(OSC_INFO_NOTIFY) == 0) {
Log::Notify(CONTROL_OSC_MSG "Received '%s' from %s", FullMessage(m).c_str(), sender);
}
else if ( attribute.compare(OSC_INFO_LOG) == 0) {
Log::Info(CONTROL_OSC_MSG "Received '%s' from %s", FullMessage(m).c_str(), sender);
}
}
// Output target: concerns attributes of the rendering output
else if ( target.compare(OSC_OUTPUT) == 0 )
{
if ( Control::manager().receiveOutputAttribute(attribute, m.ArgumentStream())) {
// send the global status
Control::manager().sendOutputStatus(remoteEndpoint);
}
}
// Session target: concerns attributes of the session
else if ( target.compare(OSC_SESSION) == 0 )
{
if ( Control::manager().receiveSessionAttribute(attribute, m.ArgumentStream()) ) {
// send the global status
Control::manager().sendOutputStatus(remoteEndpoint);
// send the status of all sources
Control::manager().sendSourcesStatus(remoteEndpoint, m.ArgumentStream());
}
}
// ALL sources target: apply attribute to all sources of the session
else if ( target.compare(OSC_ALL) == 0 )
{
// Loop over selected sources
for (SourceList::iterator it = Mixer::manager().session()->begin(); it != Mixer::manager().session()->end(); ++it) {
// apply attributes
if ( Control::manager().receiveSourceAttribute( *it, attribute, m.ArgumentStream()) && Mixer::manager().currentSource() == *it)
// and send back feedback if needed
Control::manager().sendSourceAttibutes(remoteEndpoint, OSC_CURRENT);
}
}
// Selected sources target: apply attribute to all sources of the selection
else if ( target.compare(OSC_SELECTED) == 0 )
{
// Loop over selected sources
for (SourceList::iterator it = Mixer::selection().begin(); it != Mixer::selection().end(); ++it) {
// apply attributes
if ( Control::manager().receiveSourceAttribute( *it, attribute, m.ArgumentStream()) && Mixer::manager().currentSource() == *it)
// and send back feedback if needed
Control::manager().sendSourceAttibutes(remoteEndpoint, OSC_CURRENT);
}
}
// Current source target: apply attribute to the current sources
else if ( target.compare(OSC_CURRENT) == 0 )
{
int sourceid = -1;
if ( attribute.compare(OSC_SYNC) == 0) {
// send the status of all sources
Control::manager().sendSourcesStatus(remoteEndpoint, m.ArgumentStream());
}
else if ( attribute.compare(OSC_NEXT) == 0) {
// set current to NEXT
Mixer::manager().setCurrentNext();
// send the status of all sources
Control::manager().sendSourcesStatus(remoteEndpoint, m.ArgumentStream());
}
else if ( attribute.compare(OSC_PREVIOUS) == 0) {
// set current to PREVIOUS
Mixer::manager().setCurrentPrevious();
// send the status of all sources
Control::manager().sendSourcesStatus(remoteEndpoint, m.ArgumentStream());
}
else if ( BaseToolkit::is_a_number( attribute.substr(1), &sourceid) ){
// set current to given INDEX
Mixer::manager().setCurrentIndex(sourceid);
// send the status of all sources
Control::manager().sendSourcesStatus(remoteEndpoint, m.ArgumentStream());
}
// all other attributes operate on current source
else {
// apply attributes to current source
if ( Control::manager().receiveSourceAttribute( Mixer::manager().currentSource(), attribute, m.ArgumentStream()) )
// and send back feedback if needed
Control::manager().sendSourceAttibutes(remoteEndpoint, OSC_CURRENT);
}
}
// General case: try to identify the target
else {
// try to find source by index
Source *s = nullptr;
int sourceid = -1;
if ( BaseToolkit::is_a_number(target.substr(1), &sourceid) )
s = Mixer::manager().sourceAtIndex(sourceid);
// if failed, try to find source by name
if (s == nullptr)
s = Mixer::manager().findSource(target.substr(1));
// if a source with the given target name or index was found
if (s) {
// apply attributes to source
if ( Control::manager().receiveSourceAttribute(s, attribute, m.ArgumentStream()) )
// and send back feedback if needed
Control::manager().sendSourceAttibutes(remoteEndpoint, target, s);
}
else
Log::Info(CONTROL_OSC_MSG "Unknown target '%s' requested by %s.", target.c_str(), sender);
}
}
else {
Log::Info(CONTROL_OSC_MSG "Unknown osc message '%s' sent by %s.", m.AddressPattern(), sender);
}
}
catch( osc::Exception& e ){
// any parsing errors such as unexpected argument types, or
// missing arguments get thrown as exceptions.
Log::Info(CONTROL_OSC_MSG "Ignoring error in message '%s' from %s : %s", m.AddressPattern(), sender, e.what());
}
}
std::string Control::RequestListener::FullMessage( const osc::ReceivedMessage& m )
{
// build a string with the address pattern of the message
std::ostringstream message;
message << m.AddressPattern() << " ";
// try to fill the string with the arguments
std::ostringstream arguments;
try{
// loop over all arguments
osc::ReceivedMessage::const_iterator arg = m.ArgumentsBegin();
while (arg != m.ArgumentsEnd()) {
if( arg->IsBool() ){
bool a = (arg++)->AsBoolUnchecked();
message << (a ? "T" : "F");
}
else if( arg->IsInt32() ){
int a = (arg++)->AsInt32Unchecked();
message << "i";
arguments << " " << a;
}
else if( arg->IsFloat() ){
float a = (arg++)->AsFloatUnchecked();
message << "f";
arguments << " " << std::fixed << std::setprecision(2) << a;
}
else if( arg->IsString() ){
const char *a = (arg++)->AsStringUnchecked();
message << "s";
arguments << " " << a;
}
}
}
catch( osc::Exception& e ){
// any parsing errors such as unexpected argument types, or
// missing arguments get thrown as exceptions.
Log::Info(CONTROL_OSC_MSG "Ignoring error in message '%s': %s", m.AddressPattern(), e.what());
}
// append list of arguments to the message string
message << arguments.str();
// returns the full message
return message.str();
}
Control::Control() : receiver_(nullptr)
{
}
Control::~Control()
{
terminate();
}
std::string Control::translate (std::string addresspattern)
{
auto it_translation = translation_.find(addresspattern);
if ( it_translation != translation_.end() )
return it_translation->second;
else
return addresspattern;
}
void Control::loadOscConfig()
{
// reset translations
translation_.clear();
// load osc config file
tinyxml2::XMLDocument xmlDoc;
tinyxml2::XMLError eResult = xmlDoc.LoadFile(Settings::application.control.osc_filename.c_str());
// the only reason to return false is if the file does not exist or is empty
if (eResult == tinyxml2::XML_ERROR_FILE_NOT_FOUND
| eResult == tinyxml2::XML_ERROR_FILE_COULD_NOT_BE_OPENED
| eResult == tinyxml2::XML_ERROR_FILE_READ_ERROR
| eResult == tinyxml2::XML_ERROR_EMPTY_DOCUMENT )
resetOscConfig();
// found the file, could open and read it
else if (eResult != tinyxml2::XML_SUCCESS)
Log::Warning(CONTROL_OSC_MSG "Error while parsing Translator: %s", xmlDoc.ErrorIDToName(eResult));
// no XML parsing error
else {
// parse all entries 'osc'
tinyxml2::XMLElement* osc = xmlDoc.FirstChildElement("osc");
for( ; osc ; osc=osc->NextSiblingElement()) {
// get the 'from' entry
tinyxml2::XMLElement* from = osc->FirstChildElement("from");
if (from) {
const char *str_from = from->GetText();
if (str_from) {
// get the 'to' entry
tinyxml2::XMLElement* to = osc->FirstChildElement("to");
if (to) {
const char *str_to = to->GetText();
// if could get both; add to translator
if (str_to)
translation_[str_from] = str_to;
}
}
}
}
}
Log::Info(CONTROL_OSC_MSG "Loaded %d translation%s.", translation_.size(), translation_.size()>1?"s":"");
}
void Control::resetOscConfig()
{
// generate a template xml translation dictionnary
tinyxml2::XMLDocument xmlDoc;
tinyxml2::XMLDeclaration *pDec = xmlDoc.NewDeclaration();
xmlDoc.InsertFirstChild(pDec);
tinyxml2::XMLComment *pComment = xmlDoc.NewComment("The OSC translator converts OSC address patterns into other ones.\n"
"Complete the dictionnary by adding as many <osc> translations as you want.\n"
"Each <osc> should contain a <from> pattern to translate into a <to> pattern.\n"
"More at https://github.com/brunoherbelin/vimix/wiki/Open-Sound-Control-API.");
xmlDoc.InsertEndChild(pComment);
tinyxml2::XMLElement *from = xmlDoc.NewElement( "from" );
from->InsertFirstChild( xmlDoc.NewText("/example/osc/message") );
tinyxml2::XMLElement *to = xmlDoc.NewElement( "to" );
to->InsertFirstChild( xmlDoc.NewText("/vimix/info/log") );
tinyxml2::XMLElement *osc = xmlDoc.NewElement("osc");
osc->InsertEndChild(from);
osc->InsertEndChild(to);
xmlDoc.InsertEndChild(osc);
// save xml in osc config file
xmlDoc.SaveFile(Settings::application.control.osc_filename.c_str());
// reset and fill translation with default example
translation_.clear();
translation_["/example/osc/message"] = "/vimix/info/log";
}
bool Control::init()
{
//
// terminate before init (allows calling init() multiple times)
//
terminate();
//
// load OSC Translator
//
loadOscConfig();
//
// launch OSC listener
//
try {
// try to create listenning socket
// through exception runtime if fails
receiver_ = new UdpListeningReceiveSocket( IpEndpointName( IpEndpointName::ANY_ADDRESS,
Settings::application.control.osc_port_receive ), &listener_ );
// listen for answers in a separate thread
std::thread(listen).detach();
// inform user
IpEndpointName ip = receiver_->LocalEndpointFor( IpEndpointName( NetworkToolkit::hostname().c_str(),
Settings::application.control.osc_port_receive ));
static char *addresseip = (char *)malloc(IpEndpointName::ADDRESS_AND_PORT_STRING_LENGTH);
ip.AddressAndPortAsString(addresseip);
Log::Info(CONTROL_OSC_MSG "Listening to UDP messages sent to %s", addresseip);
}
catch (const std::runtime_error &e) {
// arg, the receiver could not be initialized
// (often because the port was not available)
receiver_ = nullptr;
Log::Warning(CONTROL_OSC_MSG "Failed to init listener on port %d; %s", Settings::application.control.osc_port_receive, e.what());
}
return receiver_ != nullptr;
}
void Control::listen()
{
if (Control::manager().receiver_)
Control::manager().receiver_->Run();
Control::manager().receiver_end_.notify_all();
}
void Control::terminate()
{
if ( receiver_ != nullptr ) {
// request termination of receiver
receiver_->AsynchronousBreak();
// wait for the receiver_end_ notification
std::mutex mtx;
std::unique_lock<std::mutex> lck(mtx);
// if waited more than 2 seconds, its dead :(
if ( receiver_end_.wait_for(lck,std::chrono::seconds(2)) == std::cv_status::timeout)
Log::Warning(CONTROL_OSC_MSG "Failed to terminate; try again.");
// delete receiver and ready to initialize
delete receiver_;
receiver_ = nullptr;
}
}
bool Control::receiveOutputAttribute(const std::string &attribute,
osc::ReceivedMessageArgumentStream arguments)
{
bool need_feedback = false;
try {
if ( attribute.compare(OSC_SYNC) == 0) {
need_feedback = true;
}
/// e.g. '/vimix/output/enable' or '/vimix/output/enable 1.0' or '/vimix/output/enable 0.0'
else if ( attribute.compare(OSC_OUTPUT_ENABLE) == 0) {
float on = 1.f;
if ( !arguments.Eos()) {
arguments >> on >> osc::EndMessage;
}
Settings::application.render.disabled = on < 0.5f;
}
/// e.g. '/vimix/output/disable' or '/vimix/output/disable 1.0' or '/vimix/output/disable 0.0'
else if ( attribute.compare(OSC_OUTPUT_DISABLE) == 0) {
float on = 1.f;
if ( !arguments.Eos()) {
arguments >> on >> osc::EndMessage;
}
Settings::application.render.disabled = on > 0.5f;
}
/// e.g. '/vimix/output/fading f 0.2' or '/vimix/output/fading ff 1.0 300.f'
else if ( attribute.compare(OSC_OUTPUT_FADING) == 0) {
float f = 0.f, d = 0.f;
// first argument is fading value
arguments >> f;
if (arguments.Eos())
arguments >> osc::EndMessage;
// if a second argument is given, it is a duration
else
arguments >> d >> osc::EndMessage;
Mixer::manager().session()->setFadingTarget(f, d);
}
/// e.g. '/vimix/output/fadein' or '/vimix/output/fadein f 300.f'
else if ( attribute.compare(OSC_OUTPUT_FADE_IN) == 0) {
float f = 0.f;
// if argument is given, it is a duration
if (!arguments.Eos())
arguments >> f >> osc::EndMessage;
Mixer::manager().session()->setFadingTarget( Mixer::manager().session()->fading() - f * 0.01);
need_feedback = true;
}
else if ( attribute.compare(OSC_OUTPUT_FADE_OUT) == 0) {
float f = 0.f;
// if argument is given, it is a duration
if (!arguments.Eos())
arguments >> f >> osc::EndMessage;
Mixer::manager().session()->setFadingTarget( Mixer::manager().session()->fading() + f * 0.01);
need_feedback = true;
}
#ifdef CONTROL_DEBUG
else {
Log::Info(CONTROL_OSC_MSG "Ignoring attribute '%s' for target 'output'", attribute.c_str());
}
#endif
}
catch (osc::MissingArgumentException &e) {
Log::Info(CONTROL_OSC_MSG "Missing argument for attribute '%s' for target 'output'", attribute.c_str());
}
catch (osc::ExcessArgumentException &e) {
Log::Info(CONTROL_OSC_MSG "Too many arguments for attribute '%s' for target 'output'", attribute.c_str());
}
catch (osc::WrongArgumentTypeException &e) {
Log::Info(CONTROL_OSC_MSG "Invalid argument for attribute '%s' for target 'output'", attribute.c_str());
}
return need_feedback;
}
bool Control::receiveSourceAttribute(Source *target, const std::string &attribute,
osc::ReceivedMessageArgumentStream arguments)
{
bool send_feedback = false;
if (target == nullptr)
return send_feedback;
try {
/// e.g. '/vimix/current/play' or '/vimix/current/play T' or '/vimix/current/play F'
if ( attribute.compare(OSC_SOURCE_PLAY) == 0) {
float on = 1.f;
if ( !arguments.Eos()) {
arguments >> on >> osc::EndMessage;
}
target->call( new SetPlay(on > 0.5f) );
}
/// e.g. '/vimix/current/pause' or '/vimix/current/pause T' or '/vimix/current/pause F'
else if ( attribute.compare(OSC_SOURCE_PAUSE) == 0) {
float on = 1.f;
if ( !arguments.Eos()) {
arguments >> on >> osc::EndMessage;
}
target->call( new SetPlay(on < 0.5f) );
}
/// e.g. '/vimix/current/replay'
else if ( attribute.compare(OSC_SOURCE_REPLAY) == 0) {
target->call( new RePlay() );
}
/// e.g. '/vimix/current/alpha f 0.3'
else if ( attribute.compare(OSC_SOURCE_LOCK) == 0) {
float x = 1.f;
arguments >> x >> osc::EndMessage;
target->call( new SetLock(x > 0.5f ? true : false) );
}
/// e.g. '/vimix/current/alpha f 0.3'
else if ( attribute.compare(OSC_SOURCE_ALPHA) == 0) {
float x = 1.f;
arguments >> x >> osc::EndMessage;
target->call( new SetAlpha(x), true );
}
/// e.g. '/vimix/current/alpha f 0.3'
else if ( attribute.compare(OSC_SOURCE_LOOM) == 0) {
float x = 1.f;
arguments >> x >> osc::EndMessage;
target->call( new Loom(x), true );
// this will require to send feedback status about source
send_feedback = true;
}
/// e.g. '/vimix/current/transparency f 0.7'
else if ( attribute.compare(OSC_SOURCE_TRANSPARENCY) == 0) {
float x = 0.f;
arguments >> x >> osc::EndMessage;
target->call( new SetAlpha(1.f - x), true );
}
/// e.g. '/vimix/current/depth f 5.0'
else if ( attribute.compare(OSC_SOURCE_DEPTH) == 0) {
float x = 0.f;
arguments >> x >> osc::EndMessage;
target->call( new SetDepth(x), true );
}
/// e.g. '/vimix/current/translation ff 10.0 2.2'
else if ( attribute.compare(OSC_SOURCE_GRAB) == 0) {
float x = 0.f, y = 0.f;
arguments >> x >> y >> osc::EndMessage;
target->call( new Grab( x, y), true );
}
/// e.g. '/vimix/current/scale ff 10.0 2.2'
else if ( attribute.compare(OSC_SOURCE_RESIZE) == 0) {
float x = 0.f, y = 0.f;
arguments >> x >> y >> osc::EndMessage;
target->call( new Resize( x, y), true );
}
/// e.g. '/vimix/current/turn f 1.0'
else if ( attribute.compare(OSC_SOURCE_TURN) == 0) {
float x = 0.f, y = 0.f;
arguments >> x;
if (arguments.Eos())
arguments >> osc::EndMessage;
else // ignore second argument
arguments >> y >> osc::EndMessage;
target->call( new Turn( x ), true );
}
/// e.g. '/vimix/current/reset'
else if ( attribute.compare(OSC_SOURCE_RESET) == 0) {
target->call( new ResetGeometry(), true );
}
#ifdef CONTROL_DEBUG
else {
Log::Info(CONTROL_OSC_MSG "Ignoring attribute '%s' for target %s.", attribute.c_str(), target->name().c_str());
}
#endif
// overwrite value if source locked
if (target->locked())
send_feedback = true;
}
catch (osc::MissingArgumentException &e) {
Log::Info(CONTROL_OSC_MSG "Missing argument for attribute '%s' for target %s.", attribute.c_str(), target->name().c_str());
}
catch (osc::ExcessArgumentException &e) {
Log::Info(CONTROL_OSC_MSG "Too many arguments for attribute '%s' for target %s.", attribute.c_str(), target->name().c_str());
}
catch (osc::WrongArgumentTypeException &e) {
Log::Info(CONTROL_OSC_MSG "Invalid argument for attribute '%s' for target %s.", attribute.c_str(), target->name().c_str());
}
return send_feedback;
}
bool Control::receiveSessionAttribute(const std::string &attribute,
osc::ReceivedMessageArgumentStream arguments)
{
bool send_feedback = false;
try {
if ( attribute.compare(OSC_SYNC) == 0) {
send_feedback = true;
}
else if ( attribute.compare(OSC_SESSION_VERSION) == 0) {
float v = 0.f;
arguments >> v >> osc::EndMessage;
size_t id = (int) ceil(v);
std::list<uint64_t> snapshots = Action::manager().snapshots();
if ( id < snapshots.size() ) {
for (size_t i = 0; i < id; ++i)
snapshots.pop_back();
uint64_t snap = snapshots.back();
Action::manager().restore(snap);
}
send_feedback = true;
}
#ifdef CONTROL_DEBUG
else {
Log::Info(CONTROL_OSC_MSG "Ignoring attribute '%s' for target 'session'", attribute.c_str());
}
#endif
}
catch (osc::MissingArgumentException &e) {
Log::Info(CONTROL_OSC_MSG "Missing argument for attribute '%s' for target 'session'", attribute.c_str());
}
catch (osc::ExcessArgumentException &e) {
Log::Info(CONTROL_OSC_MSG "Too many arguments for attribute '%s' for target 'session'", attribute.c_str());
}
catch (osc::WrongArgumentTypeException &e) {
Log::Info(CONTROL_OSC_MSG "Invalid argument for attribute '%s' for target 'session'", attribute.c_str());
}
return send_feedback;
}
void Control::sendSourceAttibutes(const IpEndpointName &remoteEndpoint, std::string target, Source *s)
{
// default values
char name[21] = {"\0"};
float lock = 0.f;
float play = 0.f;
float depth = 0.f;
float alpha = 0.f;
// get source or current source
Source *_s = s;
if ( target.compare(OSC_CURRENT) == 0 )
_s = Mixer::manager().currentSource();
// fill values if the source is valid
if (_s!=nullptr) {
strncpy(name, _s->name().c_str(), 20);
lock = _s->locked() ? 1.f : 0.f;
play = _s->playing() ? 1.f : 0.f;
depth = _s->depth();
alpha = _s->alpha();
}
// build socket to send message to indicated endpoint
UdpTransmitSocket socket( IpEndpointName( remoteEndpoint.address, Settings::application.control.osc_port_send ) );
// build messages packet
char buffer[IP_MTU_SIZE];
osc::OutboundPacketStream p( buffer, IP_MTU_SIZE );
// create bundle
p.Clear();
p << osc::BeginBundle();
/// name
std::string address = std::string(OSC_PREFIX) + target + OSC_SOURCE_NAME;
p << osc::BeginMessage( address.c_str() ) << name << osc::EndMessage;
/// Play status
address = std::string(OSC_PREFIX) + target + OSC_SOURCE_LOCK;
p << osc::BeginMessage( address.c_str() ) << lock << osc::EndMessage;
/// Play status
address = std::string(OSC_PREFIX) + target + OSC_SOURCE_PLAY;
p << osc::BeginMessage( address.c_str() ) << play << osc::EndMessage;
/// Depth
address = std::string(OSC_PREFIX) + target + OSC_SOURCE_DEPTH;
p << osc::BeginMessage( address.c_str() ) << depth << osc::EndMessage;
/// Alpha
address = std::string(OSC_PREFIX) + target + OSC_SOURCE_ALPHA;
p << osc::BeginMessage( address.c_str() ) << alpha << osc::EndMessage;
// send bundle
p << osc::EndBundle;
socket.Send( p.Data(), p.Size() );
}
void Control::sendSourcesStatus(const IpEndpointName &remoteEndpoint, osc::ReceivedMessageArgumentStream arguments)
{
// (if an argument is given, it indicates the number of sources to update)
float N = 0.f;
if ( !arguments.Eos())
arguments >> N >> osc::EndMessage;
// build socket to send message to indicated endpoint
UdpTransmitSocket socket( IpEndpointName( remoteEndpoint.address, Settings::application.control.osc_port_send ) );
// build messages packet
char buffer[IP_MTU_SIZE];
osc::OutboundPacketStream p( buffer, IP_MTU_SIZE );
p.Clear();
p << osc::BeginBundle();
int i = 0;
char oscaddr[128];
int index_current = Mixer::manager().indexCurrentSource();
for (; i < Mixer::manager().count(); ++i) {
// send status of currently selected
sprintf(oscaddr, OSC_PREFIX OSC_CURRENT "/%d", i);
p << osc::BeginMessage( oscaddr ) << (index_current == i ? 1.f : 0.f) << osc::EndMessage;
// send status of alpha
sprintf(oscaddr, OSC_PREFIX "/%d" OSC_SOURCE_ALPHA, i);
p << osc::BeginMessage( oscaddr ) << Mixer::manager().sourceAtIndex(i)->alpha() << osc::EndMessage;
}
for (; i < (int) N ; ++i) {
// reset status of currently selected
sprintf(oscaddr, OSC_PREFIX OSC_CURRENT "/%d", i);
p << osc::BeginMessage( oscaddr ) << 0.f << osc::EndMessage;
// reset status of alpha
sprintf(oscaddr, OSC_PREFIX "/%d" OSC_SOURCE_ALPHA, i);
p << osc::BeginMessage( oscaddr ) << 0.f << osc::EndMessage;
}
p << osc::EndBundle;
socket.Send( p.Data(), p.Size() );
// send status of current source
sendSourceAttibutes(remoteEndpoint, OSC_CURRENT);
}
void Control::sendOutputStatus(const IpEndpointName &remoteEndpoint)
{
// build socket to send message to indicated endpoint
UdpTransmitSocket socket( IpEndpointName( remoteEndpoint.address, Settings::application.control.osc_port_send ) );
// build messages packet
char buffer[IP_MTU_SIZE];
osc::OutboundPacketStream p( buffer, IP_MTU_SIZE );
p.Clear();
p << osc::BeginBundle();
/// output attributes
p << osc::BeginMessage( OSC_PREFIX OSC_OUTPUT OSC_OUTPUT_ENABLE );
p << (Settings::application.render.disabled ? 0.f : 1.f);
p << osc::EndMessage;
p << osc::BeginMessage( OSC_PREFIX OSC_OUTPUT OSC_OUTPUT_FADING );
p << Mixer::manager().session()->fading();
p << osc::EndMessage;
p << osc::EndBundle;
socket.Send( p.Data(), p.Size() );
}