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#include "qmpvisrendercore.hpp"
#include "qmppluginapistub.hpp"
#include "qmpsettingsro.hpp"
#include "qmpmidiplay.hpp"
#include "qmpcorepublic.hpp"
#include <cassert>
#include <dlfcn.h>
#include <QProcess>
#include <QCommandLineParser>
#include <QDebug>
#include <QThread>
qmpVisRenderCore *qmpVisRenderCore::inst=nullptr;
qmpVisRenderCore::qmpVisRenderCore(QCommandLineParser *_clp):QObject(nullptr),clp(_clp)
{
inst=this;
player=new CMidiPlayer();
api=new qmpPluginAPIStub(this);
msettings=new qmpSettingsRO();
msettings->registerOptionEnumInt("MIDI","Text encoding","Midi/TextEncoding",{"Unicode","Big5","Big5-HKSCS","CP949","EUC-JP","EUC-KR","GB18030","KOI8-R","KOI8-U","Macintosh","Shift-JIS"},0);
}
bool qmpVisRenderCore::loadVisualizationLibrary()
{
mp=dlopen("libvisualization.so",RTLD_LAZY);
if(!mp)
{
fprintf(stderr,"failed to load the visualization module!\n");
return false;
}
GetInterface_func getintf=reinterpret_cast<GetInterface_func>(dlsym(mp,"qmpPluginGetInterface"));
SwitchMode_func switchmode=reinterpret_cast<SwitchMode_func>(dlsym(mp,"switchToRenderMode"));
vf=nullptr;
vp=getintf(api);
switchmode(&qmpVisRenderCore::framefunc,!clp->isSet("show-window"));
vp->init();
return true;
}
void qmpVisRenderCore::unloadVisualizationLibrary()
{
vp->deinit();
dlclose(mp);
}
void qmpVisRenderCore::loadSettings()
{
if(clp->isSet("config"))
msettings->load(clp->value("config").toStdString().c_str());
for(auto &o:clp->values("option"))
{
int sp=o.indexOf('=');
if(!~sp)
qDebug("invalid option pair: %s",o.toStdString().c_str());
QString key=o.left(sp);
QString value=o.mid(sp+1);
msettings->setopt(key.toStdString(),value.toStdString());
}
}
void qmpVisRenderCore::setMIDIFile(const char *url)
{
player->playerLoadFile(url);
}
void qmpVisRenderCore::startRender()
{
assert(vf);
ffmpegproc=new QProcess();
ffmpegproc->setProgram("ffmpeg");
QStringList arguments;
arguments.append(split_arguments(clp->value("ffmpeg-pre-args")));
arguments
<<"-f"<<"rawvideo"
<<"-pixel_format"<<"rgba"
<<"-video_size"<<QString("%1x%2").arg(msettings->getOptionInt("Visualization/wwidth")).arg(msettings->getOptionInt("Visualization/wheight"))
<<"-framerate"<<QString::number(msettings->getOptionInt("Visualization/tfps"))
<<"-i"<<"pipe:";
arguments.append(split_arguments(clp->value("ffmpeg-args")));
arguments<<clp->value("output-file");
ffmpegproc->setArguments(arguments);
QMetaObject::Connection frameconn=connect(this,&qmpVisRenderCore::frameRendered,this,
[this,&frameconn](void* px,size_t sz,uint32_t c,uint32_t t)
{
if(sz)
{
if(!ffmpegproc->isOpen())return;
ffmpegproc->write(static_cast<const char*>(px),static_cast<qint64>(sz));
while(ffmpegproc->bytesToWrite()>1<<26)
ffmpegproc->waitForBytesWritten();
}
fprintf(stderr,"Rendered tick %u of %u, %.2f%% done.\r",c,t,100.*c/t);
if(c>t)
{
this->ffmpegproc->closeWriteChannel();
disconnect(frameconn);
qApp->exit(0);
}
},Qt::ConnectionType::BlockingQueuedConnection);
connect(ffmpegproc,QOverload<int,QProcess::ExitStatus>::of(&QProcess::finished),
[this,&frameconn](int x,QProcess::ExitStatus st){
qDebug("%s",this->ffmpegproc->readAllStandardError().data());
disconnect(frameconn);
if(x||st==QProcess::ExitStatus::CrashExit)
qApp->exit(1);
else
qApp->exit(0);
});
QMetaObject::invokeMethod(this,[this](){
ffmpegproc->start();
vf->show();
startcb(nullptr,nullptr);
},Qt::ConnectionType::QueuedConnection);
}
QStringList qmpVisRenderCore::split_arguments(QString a)
{
QStringList ret;
QString buf;
bool escaped=false;
for(int i=0;i<a.length();++i)
{
if(a[i]=='\\')
{
if(escaped)
{
buf+='\\';
escaped=false;
}
else escaped=true;
}
else if(a[i]==' ')
{
if(escaped)buf+=' ';
else
{
ret.append(buf);
buf.clear();
}
escaped=false;
}
else
{
if(escaped)
{
buf+='\\';
escaped=false;
}
buf+=a[i];
}
}
if(buf.length())
ret.append(buf);
return ret;
}
void qmpVisRenderCore::framefunc(void *px, size_t sz,uint32_t curf,uint32_t totf)
{
emit inst->frameRendered(px,sz,curf,totf);
}
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