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, but always including the *additional*
   9 // restrictions defined in the "License.txt" file.
  10 //
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with this program; if not, write to the Free Software Foundation, Inc.,
  18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 // http://www.gnu.org/licenses/gpl-2.0.txt
  21 ///////////////////////////////////////////////////////////////////////////////
  22
  23 #include "Encoder_DCA.h"
  24
  25 #include "Global.h"
  26 #include "Model_Settings.h"
  27
  28 #include <QProcess>
  29 #include <QDir>
  30 #include <limits.h>
  31
  32 static int index2bitrate(const int index)
  33 {
  34         return (index < 8) ? ((index + 1) * 32) : ((index < 12) ? ((index - 3) * 64) : ((index < 24) ? (index - 7) * 128 : (index - 15) * 256));
  35 }
  36
  37 ///////////////////////////////////////////////////////////////////////////////
  38 // Encoder Info
  39 ///////////////////////////////////////////////////////////////////////////////
  40
  41 class DCAEncoderInfo : public AbstractEncoderInfo
  42 {
  43         virtual bool isModeSupported(int mode) const
  44         {
  45                 switch(mode)
  46                 {
  47                 case SettingsModel::VBRMode:
  48                 case SettingsModel::ABRMode:
  49                         return false;
  50                         break;
  51                 case SettingsModel::CBRMode:
  52                         return true;
  53                         break;
  54                 default:
  55                         THROW("Bad RC mode specified!");
  56                 }
  57         }
  58
  59         virtual int valueCount(int mode) const
  60         {
  61                 switch(mode)
  62                 {
  63                 case SettingsModel::VBRMode:
  64                 case SettingsModel::ABRMode:
  65                         return 0;
  66                         break;
  67                 case SettingsModel::CBRMode:
  68                         return 32;
  69                         break;
  70                 default:
  71                         THROW("Bad RC mode specified!");
  72                 }
  73         }
  74
  75         virtual int valueAt(int mode, int index) const
  76         {
  77                 switch(mode)
  78                 {
  79                 case SettingsModel::VBRMode:
  80                 case SettingsModel::ABRMode:
  81                         return 0;
  82                         break;
  83                 case SettingsModel::CBRMode:
  84                         return qBound(32, index2bitrate(index), 4096);
  85                         break;
  86                 default:
  87                         THROW("Bad RC mode specified!");
  88                 }
  89         }
  90
  91         virtual int valueType(int mode) const
  92         {
  93                 switch(mode)
  94                 {
  95                 case SettingsModel::VBRMode:
  96                         return TYPE_QUALITY_LEVEL_INT;
  97                         break;
  98                 case SettingsModel::ABRMode:
  99                 case SettingsModel::CBRMode:
 100                         return TYPE_BITRATE;
 101                         break;
 102                 default:
 103                         THROW("Bad RC mode specified!");
 104                 }
 105         }
 106
 107         virtual const char *description(void) const
 108         {
 109                 static const char* s_description = "dcaenc-2 by Alexander E. Patrakov";
 110                 return s_description;
 111         }
 112 }
 113 static const g_dcaEncoderInfo;
 114
 115 ///////////////////////////////////////////////////////////////////////////////
 116 // Encoder implementation
 117 ///////////////////////////////////////////////////////////////////////////////
 118
 119 DCAEncoder::DCAEncoder(void)
 120 :
 121         m_binary(lamexp_lookup_tool("dcaenc.exe"))
 122 {
 123         if(m_binary.isEmpty())
 124         {
 125                 THROW("Error initializing DCA encoder. Tool 'dcaenc.exe' is not registred!");
 126         }
 127 }
 128
 129 DCAEncoder::~DCAEncoder(void)
 130 {
 131 }
 132
 133 bool DCAEncoder::encode(const QString &sourceFile, const AudioFileModel_MetaInfo &metaInfo, const unsigned int duration, const QString &outputFile, volatile bool *abortFlag)
 134 {
 135         QProcess process;
 136         QStringList args;
 137
 138         args << "-i" << QDir::toNativeSeparators(sourceFile);
 139         args << "-o" << QDir::toNativeSeparators(outputFile);
 140         args << "-b" << QString::number(qBound(32, index2bitrate(m_configBitrate), 4096));
 141
 142         if(!startProcess(process, m_binary, args))
 143         {
 144                 return false;
 145         }
 146
 147         bool bTimeout = false;
 148         bool bAborted = false;
 149         int prevProgress = -1;
 150
 151         QRegExp regExp("\\[(\\d+)\\.(\\d+)%\\]");
 152
 153         while(process.state() != QProcess::NotRunning)
 154         {
 155                 if(*abortFlag)
 156                 {
 157                         process.kill();
 158                         bAborted = true;
 159                         emit messageLogged("\nABORTED BY USER !!!");
 160                         break;
 161                 }
 162                 process.waitForReadyRead(m_processTimeoutInterval);
 163                 if(!process.bytesAvailable() && process.state() == QProcess::Running)
 164                 {
 165                         process.kill();
 166                         qWarning("DCAENC process timed out <-- killing!");
 167                         emit messageLogged("\nPROCESS TIMEOUT !!!");
 168                         bTimeout = true;
 169                         break;
 170                 }
 171                 while(process.bytesAvailable() > 0)
 172                 {
 173                         QByteArray line = process.readLine();
 174                         QString text = QString::fromUtf8(line.constData()).simplified();
 175                         if(regExp.lastIndexIn(text) >= 0)
 176                         {
 177                                 bool ok = false;
 178                                 int progress = regExp.cap(1).toInt(&ok);
 179                                 if(ok && (progress > prevProgress))
 180                                 {
 181                                         emit statusUpdated(progress);
 182                                         prevProgress = qMin(progress + 2, 99);
 183                                 }
 184                         }
 185                         else if(!text.isEmpty())
 186                         {
 187                                 emit messageLogged(text);
 188                         }
 189                 }
 190         }
 191
 192         process.waitForFinished();
 193         if(process.state() != QProcess::NotRunning)
 194         {
 195                 process.kill();
 196                 process.waitForFinished(-1);
 197         }
 198
 199         emit statusUpdated(100);
 200         emit messageLogged(QString().sprintf("\nExited with code: 0x%04X", process.exitCode()));
 201
 202         if(bTimeout || bAborted || process.exitCode() != EXIT_SUCCESS)
 203         {
 204                 return false;
 205         }
 206
 207         return true;
 208 }
 209
 210 QString DCAEncoder::extension(void)
 211 {
 212         return "dts";
 213 }
 214
 215 bool DCAEncoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 216 {
 217         if(containerType.compare("Wave", Qt::CaseInsensitive) == 0)
 218         {
 219                 if(formatType.compare("PCM", Qt::CaseInsensitive) == 0)
 220                 {
 221                         return true;
 222                 }
 223         }
 224
 225         return false;
 226 }
 227
 228 const unsigned int *DCAEncoder::supportedChannelCount(void)
 229 {
 230         static const unsigned int supportedChannels[] = {1, 2, 4, 5, 6, NULL};
 231         return supportedChannels;
 232 }
 233
 234 const unsigned int *DCAEncoder::supportedSamplerates(void)
 235 {
 236         static const unsigned int supportedRates[] = {48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, NULL};
 237         return supportedRates;
 238 }
 239
 240 const unsigned int *DCAEncoder::supportedBitdepths(void)
 241 {
 242         static const unsigned int supportedBPS[] = {16, 32, NULL};
 243         return supportedBPS;
 244 }
 245
 246 const AbstractEncoderInfo *DCAEncoder::getEncoderInfo(void)
 247 {
 248         return &g_dcaEncoderInfo;
 249 }