src/Encoder_DCA.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2012 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation; either version 2 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License along
  16 // with this program; if not, write to the Free Software Foundation, Inc.,
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 //
  19 // http://www.gnu.org/licenses/gpl-2.0.txt
  20 ///////////////////////////////////////////////////////////////////////////////
  21
  22 #include "Encoder_DCA.h"
  23
  24 #include "Global.h"
  25 #include "Model_Settings.h"
  26
  27 #include <QProcess>
  28 #include <QDir>
  29 #include <limits.h>
  30
  31 DCAEncoder::DCAEncoder(void)
  32 :
  33         m_binary(lamexp_lookup_tool("dcaenc.exe"))
  34 {
  35         if(m_binary.isEmpty())
  36         {
  37                 throw "Error initializing DCA encoder. Tool 'dcaenc.exe' is not registred!";
  38         }
  39 }
  40
  41 DCAEncoder::~DCAEncoder(void)
  42 {
  43 }
  44
  45 bool DCAEncoder::encode(const QString &sourceFile, const AudioFileModel &metaInfo, const QString &outputFile, volatile bool *abortFlag)
  46 {
  47         QProcess process;
  48         QStringList args;
  49
  50         int bitrate = qBound(32, m_configBitrate * 32, 6144);
  51
  52         args << "-i" << QDir::toNativeSeparators(sourceFile);
  53         args << "-o" << QDir::toNativeSeparators(outputFile);
  54         args << "-b" << QString::number(bitrate);
  55
  56         if(!startProcess(process, m_binary, args))
  57         {
  58                 return false;
  59         }
  60
  61         bool bTimeout = false;
  62         bool bAborted = false;
  63         int prevProgress = -1;
  64
  65         QRegExp regExp("\\[(\\d+)\\.(\\d+)%\\]");
  66
  67         while(process.state() != QProcess::NotRunning)
  68         {
  69                 if(*abortFlag)
  70                 {
  71                         process.kill();
  72                         bAborted = true;
  73                         emit messageLogged("\nABORTED BY USER !!!");
  74                         break;
  75                 }
  76                 process.waitForReadyRead(m_processTimeoutInterval);
  77                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
  78                 {
  79                         process.kill();
  80                         qWarning("DCAENC process timed out <-- killing!");
  81                         emit messageLogged("\nPROCESS TIMEOUT !!!");
  82                         bTimeout = true;
  83                         break;
  84                 }
  85                 while(process.bytesAvailable() > 0)
  86                 {
  87                         QByteArray line = process.readLine();
  88                         QString text = QString::fromUtf8(line.constData()).simplified();
  89                         if(regExp.lastIndexIn(text) >= 0)
  90                         {
  91                                 bool ok = false;
  92                                 int progress = regExp.cap(1).toInt(&ok);
  93                                 if(ok && (progress > prevProgress))
  94                                 {
  95                                         emit statusUpdated(progress);
  96                                         prevProgress = qMin(progress + 2, 99);
  97                                 }
  98                         }
  99                         else if(!text.isEmpty())
 100                         {
 101                                 emit messageLogged(text);
 102                         }
 103                 }
 104         }
 105
 106         process.waitForFinished();
 107         if(process.state() != QProcess::NotRunning)
 108         {
 109                 process.kill();
 110                 process.waitForFinished(-1);
 111         }
 112
 113         emit statusUpdated(100);
 114         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 115
 116         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS)
 117         {
 118                 return false;
 119         }
 120
 121         return true;
 122 }
 123
 124 QString DCAEncoder::extension(void)
 125 {
 126         return "dts";
 127 }
 128
 129 bool DCAEncoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 130 {
 131         if(containerType.compare("Wave", Qt::CaseInsensitive) == 0)
 132         {
 133                 if(formatType.compare("PCM", Qt::CaseInsensitive) == 0)
 134                 {
 135                         return true;
 136                 }
 137         }
 138
 139         return false;
 140 }
 141
 142 const unsigned int *DCAEncoder::supportedChannelCount(void)
 143 {
 144         static const unsigned int supportedChannels[] = {1, 2, 4, 5, 6, NULL};
 145         return supportedChannels;
 146 }
 147
 148 const unsigned int *DCAEncoder::supportedSamplerates(void)
 149 {
 150         static const unsigned int supportedRates[] = {48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, NULL};
 151         return supportedRates;
 152 }
 153
 154 const unsigned int *DCAEncoder::supportedBitdepths(void)
 155 {
 156         static const unsigned int supportedBPS[] = {16, 32, NULL};
 157         return supportedBPS;
 158 }