mirror of
https://github.com/ElvishArtisan/rivendell.git
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267 lines
7.7 KiB
C++
267 lines
7.7 KiB
C++
// mainloop.cpp
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//
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// Render a Rivendell log.
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//
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// (C) Copyright 2017 Fred Gleason <fredg@paravelsystems.com>
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License version 2 as
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// published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public
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// License along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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#include <errno.h>
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#include <math.h>
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#include <stdio.h>
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#include <vector>
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#include <rdcart.h>
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#include <rdcut.h>
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#include <rdconf.h>
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#include <rdlog.h>
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#include <rdlog_event.h>
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#include <rdlog_line.h>
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#include "rdrender.h"
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int MainObject::MainLoop()
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{
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float *pcm=NULL;
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QTime current_time=render_start_time;
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QString warnings="";
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//
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// Open Log
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//
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RDLog *log=new RDLog(render_logname);
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if(!log->exists()) {
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fprintf(stderr,"rdrender: no such log\n");
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return 1;
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}
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RDLogEvent *log_event=new RDLogEvent(RDLog::tableName(render_logname));
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log_event->load();
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//
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// Open Output File
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//
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SF_INFO sf_info;
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SNDFILE *sf_out;
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FILE *f;
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char tempdir[PATH_MAX];
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memset(&sf_info,0,sizeof(sf_info));
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sf_info.samplerate=render_system->sampleRate();
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sf_info.channels=render_channels;
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if(render_settings.format()==RDSettings::Pcm16) {
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sf_info.format=SF_FORMAT_WAV|SF_FORMAT_PCM_16;
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}
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else {
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sf_info.format=SF_FORMAT_WAV|SF_FORMAT_PCM_24;
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}
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if(render_settings_modified||render_to_file.isEmpty()) {
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//
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// 2nd pass will be needed, so just create a placeholder for now
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// and then output to a temp file
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//
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Verbose("Pass 1 of 2");
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if(!render_to_file.isEmpty()) {
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if((f=fopen(render_to_file,"w"))==NULL) {
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fprintf(stderr,"rdrender: unable to open output file [%s]\n",
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strerror(errno));
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return 1;
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}
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fclose(f);
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}
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strncpy(tempdir,RDTempDir()+"/rdrenderXXXXXX",PATH_MAX);
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render_temp_output_filename=QString(mkdtemp(tempdir))+"/log.wav";
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sf_out=sf_open(render_temp_output_filename,SFM_WRITE,&sf_info);
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if(sf_out==NULL) {
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fprintf(stderr,"rdrender: unable to open temporary file \"%s\" [%s]\n",
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(const char *)render_temp_output_filename,
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sf_strerror(sf_out));
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return 1;
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}
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Verbose("Using temporary file \""+render_temp_output_filename+"\".");
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}
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else {
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Verbose("Pass 1 of 1");
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sf_out=sf_open(render_to_file,SFM_WRITE,&sf_info);
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if(sf_out==NULL) {
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fprintf(stderr,"rdrender: unable to open output file [%s]\n",
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sf_strerror(sf_out));
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return 1;
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}
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}
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//
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// Initialize the log
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//
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std::vector<LogLine *> lls;
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for(int i=0;i<log_event->size();i++) {
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lls.push_back(new LogLine(log_event->logLine(i),render_user,render_station,
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render_system,render_config,render_channels));
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if(render_ignore_stops&&(lls.back()->transType()==RDLogLine::Stop)) {
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lls.back()->setTransType(RDLogLine::Play);
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}
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if((!render_first_time.isNull())&&
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(lls.back()->timeType()==RDLogLine::Hard)&&
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(render_first_line==-1)&&
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(lls.back()->startTime(RDLogLine::Imported)==render_first_time)) {
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render_first_line=i;
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}
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if((!render_last_time.isNull())&&
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(lls.back()->timeType()==RDLogLine::Hard)&&
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(render_last_line==-1)&&
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(lls.back()->startTime(RDLogLine::Imported)==render_last_time)) {
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render_last_line=i;
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}
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}
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QString time_errs="";
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if((!render_first_time.isNull())&&(render_first_line==-1)) {
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time_errs+="--first-time event not found";
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}
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if((!render_last_time.isNull())&&(render_last_line==-1)) {
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if(!time_errs.isEmpty()) {
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time_errs+=", ";
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}
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time_errs+="--last-time event not found";
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}
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if(!time_errs.isEmpty()) {
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fprintf(stderr,"rdrender: %s\n",(const char *)time_errs);
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return 1;
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}
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lls.push_back(new LogLine(new RDLogLine(),render_user,render_station,
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render_system,render_config,render_channels));
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lls.back()->setTransType(RDLogLine::Play);
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if((!render_first_time.isNull())&&(render_first_line==-1)) {
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render_first_line=log_event->size();
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}
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//
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// Iterate through it
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//
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for(unsigned i=0;i<lls.size();i++) {
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if(((render_first_line==-1)||(render_first_line<=(int)i))&&
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((render_last_line==-1)||(render_last_line>(int)i))) {
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if(lls.at(i)->transType()==RDLogLine::Stop) {
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Verbose(current_time,i,"STOP ",lls.at(i)->summary());
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warnings+=
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QString().sprintf("log render halted at line %d due to STOP\n",i);
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break;
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}
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if(lls.at(i)->open(current_time)) {
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Verbose(current_time,i,RDLogLine::transText(lls.at(i)->transType()),
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QString().sprintf(" cart %06u [",lls.at(i)->cartNumber())+
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lls.at(i)->title()+"]");
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sf_count_t frames=0;
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if((lls.at(i+1)->transType()==RDLogLine::Segue)&&
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(lls.at(i)->cut()->segueStartPoint()>=0)) {
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frames=FramesFromMsec(lls.at(i)->cut()->segueStartPoint()-
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lls.at(i)->cut()->startPoint());
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current_time=current_time.addMSecs(lls.at(i)->cut()->segueStartPoint()-
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lls.at(i)->cut()->startPoint());
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}
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else {
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frames=FramesFromMsec(lls.at(i)->cut()->endPoint()-
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lls.at(i)->cut()->startPoint());
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current_time=current_time.addMSecs(lls.at(i)->cut()->endPoint()-
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lls.at(i)->cut()->startPoint());
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}
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pcm=new float[frames*render_channels];
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memset(pcm,0,frames*render_channels);
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for(unsigned j=0;j<i;j++) {
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Sum(pcm,lls.at(j),frames);
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}
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Sum(pcm,lls.at(i),frames);
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sf_writef_float(sf_out,pcm,frames);
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delete pcm;
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pcm=NULL;
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lls.at(i)->setRamp(lls.at(i+1)->transType());
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}
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else {
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if(i<(lls.size()-1)) {
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if(lls.at(i)->type()==RDLogLine::Cart) {
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Verbose(current_time,i,"FAIL",lls.at(i)->summary()+
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" (NO AUDIO AVAILABLE)");
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warnings+=
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lls.at(i)->summary()+QString().
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sprintf("at line %d failed to play (NO AUDIO AVAILABLE)\n",i);
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}
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else {
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Verbose(current_time,i,"SKIP",lls.at(i)->summary());
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}
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}
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else {
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Verbose(current_time,lls.size()-1,"STOP","--- end of log ---");
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}
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}
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}
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}
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sf_close(sf_out);
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//
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// Process 2nd Pass
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//
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if(render_settings_modified||render_to_file.isEmpty()) {
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QString err_msg;
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bool ok=false;
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Verbose("Pass 2 of 2");
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if(!render_to_file.isEmpty()) {
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Verbose("Writing output file");
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ok=ConvertAudio(render_temp_output_filename,render_to_file,
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&render_settings,&err_msg);
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DeleteCutFile(render_temp_output_filename);
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if(!ok) {
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fprintf(stderr,"rdrender: unable to convert output [%s]\n",
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(const char *)err_msg);
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return 1;
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}
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}
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else {
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Verbose("Importing cart");
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ok=ImportCart(render_temp_output_filename,render_cart_number,
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render_cut_number,&err_msg);
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DeleteCutFile(render_temp_output_filename);
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if(!ok) {
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fprintf(stderr,"rdrender: unable to import to cart [%s]\n",
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(const char *)err_msg);
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return 1;
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}
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}
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}
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fprintf(stderr,"%s",(const char *)warnings);
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fflush(stderr);
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return 0;
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}
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void MainObject::Sum(float *pcm_out,LogLine *ll,sf_count_t frames)
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{
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if(ll->handle()!=NULL) {
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float *pcm=new float[frames*render_channels];
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memset(pcm,0,frames*render_channels);
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sf_count_t n=sf_readf_float(ll->handle(),pcm,frames);
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for(sf_count_t i=0;i<n;i+=render_channels) {
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double ratio=exp10(((double)i*ll->rampRate()+ll->rampLevel())/2000.0);
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for(sf_count_t j=0;j<render_channels;j++) {
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pcm_out[i*render_channels+j]+=ratio*pcm[i*render_channels+j];
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}
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}
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ll->setRampLevel((double)n*ll->rampRate()+ll->rampLevel());
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if(n<frames) {
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ll->close();
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}
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delete pcm;
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}
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}
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