2017-08-22 Fred Gleason <fredg@paravelsystems.com>

* Implemented SEGUE transitions in rdrender(1).
2025-10-30 09:13:51 +01:00 · 2017-08-22 17:40:41 -04:00
parent 6659660736
commit 3abb23a77a
7 changed files with 341 additions and 26 deletions
--- a/utils/rdrender/logline.cpp
+++ b/utils/rdrender/logline.cpp
@@ -0,0 +1,181 @@
+// logline.cpp
+//
+// Container class for Rivendell Log Line.
+//
+//   (C) Copyright 2017 Fred Gleason <fredg@paravelsystems.com>
+//
+//   This program is free software; you can redistribute it and/or modify
+//   it under the terms of the GNU General Public License version 2 as
+//   published by the Free Software Foundation.
+//
+//   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, write to the Free Software
+//   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+
+#include "logline.h"
+
+#include <rd.h>
+#include <rdaudioconvert.h>
+#include <rdaudioexport.h>
+#include <rdconf.h>
+
+LogLine::LogLine(RDLogLine *ll,RDUser *user,RDStation *station,RDSystem *sys,
+		 RDConfig *config,unsigned chans)
+  : RDLogLine(*ll)
+{
+  ll_cart=NULL;
+  ll_cut=NULL;
+  ll_handle=NULL;
+  ll_user=user;
+  ll_station=station;
+  ll_system=sys;
+  ll_config=config;
+  ll_channels=chans;
+  ll_ramp_level=0.0;
+  ll_ramp_rate=0.0;
+}
+
+
+RDCart *LogLine::cart() const
+{
+  return ll_cart;
+}
+
+
+RDCut *LogLine::cut() const
+{
+  return ll_cut;
+}
+
+
+SNDFILE *LogLine::handle() const
+{
+  return ll_handle;
+}
+
+
+double LogLine::rampLevel() const
+{
+  return ll_ramp_level;
+}
+
+
+void LogLine::setRampLevel(double lvl)
+{
+  ll_ramp_level=lvl;
+}
+
+
+double LogLine::rampRate() const
+{
+  return ll_ramp_rate;
+}
+
+
+void LogLine::setRampRate(double lvl)
+{
+  ll_ramp_rate=lvl;
+}
+
+
+void LogLine::setRamp(RDLogLine::TransType next_trans)
+{
+  if((next_trans==RDLogLine::Segue)&&
+     (ll_cut->segueStartPoint()>=0)&&(ll_cut->segueEndPoint()>=0)) {
+    ll_ramp_rate=((double)RD_FADE_DEPTH)/((double)FramesFromMsec(ll_cut->segueEndPoint()-ll_cut->segueStartPoint()));
+  }
+}
+
+
+bool LogLine::open(const QTime &time)
+{
+  QString cutname;
+  SF_INFO sf_info;
+
+  if(type()==RDLogLine::Cart) {
+    ll_cart=new RDCart(cartNumber());
+    if(ll_cart->exists()&&(ll_cart->type()==RDCart::Audio)) {
+      if(ll_cart->selectCut(&cutname,time)) {
+	ll_cut=new RDCut(cutname);
+	QString filename;
+	if(GetCutFile(cutname,ll_cut->startPoint(),ll_cut->endPoint(),
+		      &filename)) {
+	  ll_handle=sf_open(filename,SFM_READ,&sf_info);
+	  if(ll_handle!=NULL) {
+ 	    DeleteCutFile(filename);
+	    return true;
+	  }
+	}
+      }
+    }
+  }
+  return false;
+}
+
+
+void LogLine::close()
+{
+  sf_close(ll_handle);
+  ll_handle=NULL;
+}
+
+
+bool LogLine::GetCutFile(const QString &cutname,int start_pt,int end_pt,
+			 QString *dest_filename) const
+{
+  bool ret=false;
+  RDAudioConvert::ErrorCode conv_err;
+  RDAudioExport::ErrorCode export_err;
+  char tempdir[PATH_MAX];
+  
+  strncpy(tempdir,RDTempDir()+"/rdrenderXXXXXX",PATH_MAX);
+  *dest_filename=QString(mkdtemp(tempdir))+"/"+cutname+".wav";
+  RDAudioExport *conv=new RDAudioExport(ll_station,ll_config);
+  conv->setDestinationFile(*dest_filename);
+  conv->setCartNumber(RDCut::cartNumber(cutname));
+  conv->setCutNumber(RDCut::cutNumber(cutname));
+  RDSettings s;
+  s.setFormat(RDSettings::Pcm16);
+  s.setSampleRate(ll_system->sampleRate());
+  s.setChannels(ll_channels);
+  s.setNormalizationLevel(0);
+  conv->setDestinationSettings(&s);
+  conv->setRange(start_pt,end_pt);
+  conv->setEnableMetadata(false);
+  switch(export_err=conv->runExport(ll_user->name(),
+				    ll_user->password(),&conv_err)) {
+  case RDAudioExport::ErrorOk:
+    ret=true;
+    break;
+
+  default:
+    ret=false;
+    printf("export err %d [%s]\n",export_err,
+	   (const char *)RDAudioExport::errorText(export_err,conv_err));
+    break;
+  }
+
+  delete conv;
+  return ret;
+}
+
+
+void LogLine::DeleteCutFile(const QString &dest_filename) const
+{
+  unlink(dest_filename);
+  QStringList f0=f0.split("/",dest_filename);
+  f0.erase(f0.fromLast());
+  rmdir("/"+f0.join("/"));
+}
+
+
+uint64_t LogLine::FramesFromMsec(uint64_t msec)
+{
+  return msec*ll_system->sampleRate()/1000;
+}