src/Encoder_DCA.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2018 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                         MUTILS_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                         MUTILS_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                         MUTILS_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                         MUTILS_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         virtual const char *extension(void) const
 114         {
 115                 static const char* s_extension = "dts";
 116                 return s_extension;
 117         }
 118
 119         virtual bool isResamplingSupported(void) const
 120         {
 121                 return false;
 122         }
 123 }
 124 static const g_dcaEncoderInfo;
 125
 126 ///////////////////////////////////////////////////////////////////////////////
 127 // Encoder implementation
 128 ///////////////////////////////////////////////////////////////////////////////
 129
 130 DCAEncoder::DCAEncoder(void)
 131 :
 132         m_binary(lamexp_tools_lookup(L1S("dcaenc.exe")))
 133 {
 134         if(m_binary.isEmpty())
 135         {
 136                 MUTILS_THROW("Error initializing DCA encoder. Tool 'dcaenc.exe' is not registred!");
 137         }
 138 }
 139
 140 DCAEncoder::~DCAEncoder(void)
 141 {
 142 }
 143
 144 bool DCAEncoder::encode(const QString &sourceFile, const AudioFileModel_MetaInfo &metaInfo, const unsigned int duration, const unsigned int channels, const QString &outputFile, QAtomicInt &abortFlag)
 145 {
 146         QProcess process;
 147         QStringList args;
 148
 149         args << L1S("-i") << QDir::toNativeSeparators(sourceFile);
 150         args << L1S("-o") << QDir::toNativeSeparators(outputFile);
 151         args << L1S("-b") << QString::number(qBound(32, index2bitrate(m_configBitrate), 4096));
 152
 153         if(!startProcess(process, m_binary, args))
 154         {
 155                 return false;
 156         }
 157
 158         int prevProgress = -1;
 159         QRegExp regExp(L1S("\\[(\\d+)\\.(\\d+)%\\]"));
 160
 161         const result_t result = awaitProcess(process, abortFlag, [this, &prevProgress, &regExp](const QString &text)
 162         {
 163                 if (regExp.lastIndexIn(text) >= 0)
 164                 {
 165                         qint32 newProgress;
 166                         if (MUtils::regexp_parse_int32(regExp, newProgress))
 167                         {
 168                                 if (newProgress > prevProgress)
 169                                 {
 170                                         emit statusUpdated(newProgress);
 171                                         prevProgress = NEXT_PROGRESS(newProgress);
 172                                 }
 173                         }
 174                         return true;
 175                 }
 176                 return false;
 177         });
 178
 179         return (result == RESULT_SUCCESS);
 180 }
 181
 182 bool DCAEncoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
 183 {
 184         if(containerType.compare(L1S("Wave"), Qt::CaseInsensitive) == 0)
 185         {
 186                 if(formatType.compare(L1S("PCM"), Qt::CaseInsensitive) == 0)
 187                 {
 188                         return true;
 189                 }
 190         }
 191
 192         return false;
 193 }
 194
 195 const unsigned int *DCAEncoder::supportedChannelCount(void)
 196 {
 197         static const unsigned int supportedChannels[] = {1, 2, 4, 5, 6, NULL};
 198         return supportedChannels;
 199 }
 200
 201 const unsigned int *DCAEncoder::supportedSamplerates(void)
 202 {
 203         static const unsigned int supportedRates[] = {48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, NULL};
 204         return supportedRates;
 205 }
 206
 207 const unsigned int *DCAEncoder::supportedBitdepths(void)
 208 {
 209         static const unsigned int supportedBPS[] = {16, 32, NULL};
 210         return supportedBPS;
 211 }
 212
 213 const AbstractEncoderInfo *DCAEncoder::getEncoderInfo(void)
 214 {
 215         return &g_dcaEncoderInfo;
 216 }