src/Encoder_DCA.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2013 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 static int index2bitrate(const int index)
  32 {
  33         return (index < 8) ? ((index + 1) * 32) : ((index < 12) ? ((index - 3) * 64) : ((index < 24) ? (index - 7) * 128 : (index - 15) * 256));
  34 }
  35
  36 ///////////////////////////////////////////////////////////////////////////////
  37 // Encoder Info
  38 ///////////////////////////////////////////////////////////////////////////////
  39
  40 class DCAEncoderInfo : public AbstractEncoderInfo
  41 {
  42         virtual bool isModeSupported(int mode) const
  43         {
  44                 switch(mode)
  45                 {
  46                 case SettingsModel::VBRMode:
  47                 case SettingsModel::ABRMode:
  48                         return false;
  49                         break;
  50                 case SettingsModel::CBRMode:
  51                         return true;
  52                         break;
  53                 default:
  54                         throw "Bad RC mode specified!";
  55                 }
  56         }
  57
  58         virtual int valueCount(int mode) const
  59         {
  60                 switch(mode)
  61                 {
  62                 case SettingsModel::VBRMode:
  63                 case SettingsModel::ABRMode:
  64                         return 0;
  65                         break;
  66                 case SettingsModel::CBRMode:
  67                         return 32;
  68                         break;
  69                 default:
  70                         throw "Bad RC mode specified!";
  71                 }
  72         }
  73
  74         virtual int valueAt(int mode, int index) const
  75         {
  76                 switch(mode)
  77                 {
  78                 case SettingsModel::VBRMode:
  79                 case SettingsModel::ABRMode:
  80                         return 0;
  81                         break;
  82                 case SettingsModel::CBRMode:
  83                         return qBound(32, index2bitrate(index), 4096);
  84                         break;
  85                 default:
  86                         throw "Bad RC mode specified!";
  87                 }
  88         }
  89
  90         virtual int valueType(int mode) const
  91         {
  92                 switch(mode)
  93                 {
  94                 case SettingsModel::VBRMode:
  95                         return TYPE_QUALITY_LEVEL_INT;
  96                         break;
  97                 case SettingsModel::ABRMode:
  98                 case SettingsModel::CBRMode:
  99                         return TYPE_BITRATE;
 100                         break;
 101                 default:
 102                         throw "Bad RC mode specified!";
 103                 }
 104         }
 105
 106         virtual const char *description(void) const
 107         {
 108                 static const char* s_description = "dcaenc-2 by Alexander E. Patrakov";
 109                 return s_description;
 110         }
 111 }
 112 static const g_dcaEncoderInfo;
 113
 114 ///////////////////////////////////////////////////////////////////////////////
 115 // Encoder implementation
 116 ///////////////////////////////////////////////////////////////////////////////
 117
 118 DCAEncoder::DCAEncoder(void)
 119 :
 120         m_binary(lamexp_lookup_tool("dcaenc.exe"))
 121 {
 122         if(m_binary.isEmpty())
 123         {
 124                 throw "Error initializing DCA encoder. Tool 'dcaenc.exe' is not registred!";
 125         }
 126 }
 127
 128 DCAEncoder::~DCAEncoder(void)
 129 {
 130 }
 131
 132 bool DCAEncoder::encode(const QString &sourceFile, const AudioFileModel_MetaInfo &metaInfo, const unsigned int duration, const QString &outputFile, volatile bool *abortFlag)
 133 {
 134         QProcess process;
 135         QStringList args;
 136
 137         args << "-i" << QDir::toNativeSeparators(sourceFile);
 138         args << "-o" << QDir::toNativeSeparators(outputFile);
 139         args << "-b" << QString::number(qBound(32, index2bitrate(m_configBitrate), 4096));
 140
 141         if(!startProcess(process, m_binary, args))
 142         {
 143                 return false;
 144         }
 145
 146         bool bTimeout = false;
 147         bool bAborted = false;
 148         int prevProgress = -1;
 149
 150         QRegExp regExp("\\[(\\d+)\\.(\\d+)%\\]");
 151
 152         while(process.state() != QProcess::NotRunning)
 153         {
 154                 if(*abortFlag)
 155                 {
 156                         process.kill();
 157                         bAborted = true;
 158                         emit messageLogged("\nABORTED BY USER !!!");
 159                         break;
 160                 }
 161                 process.waitForReadyRead(m_processTimeoutInterval);
 162                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
 163                 {
 164                         process.kill();
 165                         qWarning("DCAENC process timed out <-- killing!");
 166                         emit messageLogged("\nPROCESS TIMEOUT !!!");
 167                         bTimeout = true;
 168                         break;
 169                 }
 170                 while(process.bytesAvailable() > 0)
 171                 {
 172                         QByteArray line = process.readLine();
 173                         QString text = QString::fromUtf8(line.constData()).simplified();
 174                         if(regExp.lastIndexIn(text) >= 0)
 175                         {
 176                                 bool ok = false;
 177                                 int progress = regExp.cap(1).toInt(&ok);
 178                                 if(ok && (progress > prevProgress))
 179                                 {
 180                                         emit statusUpdated(progress);
 181                                         prevProgress = qMin(progress + 2, 99);
 182                                 }
 183                         }
 184                         else if(!text.isEmpty())
 185                         {
 186                                 emit messageLogged(text);
 187                         }
 188                 }
 189         }
 190
 191         process.waitForFinished();
 192         if(process.state() != QProcess::NotRunning)
 193         {
 194                 process.kill();
 195                 process.waitForFinished(-1);
 196         }
 197
 198         emit statusUpdated(100);
 199         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 200
 201         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS)
 202         {
 203                 return false;
 204         }
 205
 206         return true;
 207 }
 208
 209 QString DCAEncoder::extension(void)
 210 {
 211         return "dts";
 212 }
 213
 214 bool DCAEncoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 215 {
 216         if(containerType.compare("Wave", Qt::CaseInsensitive) == 0)
 217         {
 218                 if(formatType.compare("PCM", Qt::CaseInsensitive) == 0)
 219                 {
 220                         return true;
 221                 }
 222         }
 223
 224         return false;
 225 }
 226
 227 const unsigned int *DCAEncoder::supportedChannelCount(void)
 228 {
 229         static const unsigned int supportedChannels[] = {1, 2, 4, 5, 6, NULL};
 230         return supportedChannels;
 231 }
 232
 233 const unsigned int *DCAEncoder::supportedSamplerates(void)
 234 {
 235         static const unsigned int supportedRates[] = {48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, NULL};
 236         return supportedRates;
 237 }
 238
 239 const unsigned int *DCAEncoder::supportedBitdepths(void)
 240 {
 241         static const unsigned int supportedBPS[] = {16, 32, NULL};
 242         return supportedBPS;
 243 }
 244
 245 const AbstractEncoderInfo *DCAEncoder::getEncoderInfo(void)
 246 {
 247         return &g_dcaEncoderInfo;
 248 }