src/Decoder_Opus.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2017 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 "Decoder_Opus.h"
  24
  25 //Internal
  26 #include "Global.h"
  27
  28 //MUtils
  29 #include <MUtils/Exception.h>
  30
  31 //Qt
  32 #include <QDir>
  33 #include <QProcess>
  34 #include <QRegExp>
  35 #include <QUuid>
  36
  37 bool OpusDecoder::m_disableResampling = false;
  38
  39 OpusDecoder::OpusDecoder(void)
  40 :
  41         m_binary(lamexp_tools_lookup("opusdec.exe"))
  42 {
  43         if(m_binary.isEmpty())
  44         {
  45                 MUTILS_THROW("Error initializing Opus decoder. Tool 'opusdec.exe' is not registred!");
  46         }
  47 }
  48
  49 OpusDecoder::~OpusDecoder(void)
  50 {
  51 }
  52
  53 bool OpusDecoder::decode(const QString &sourceFile, const QString &outputFile, QAtomicInt &abortFlag)
  54 {
  55         QProcess process;
  56         QStringList args;
  57
  58         if(m_disableResampling)
  59         {
  60                 args << "--no-resample";
  61         }
  62
  63         args << QDir::toNativeSeparators(sourceFile);
  64         args << QDir::toNativeSeparators(outputFile);
  65
  66         if(!startProcess(process, m_binary, args))
  67         {
  68                 return false;
  69         }
  70
  71         int prevProgress = -1;
  72         QRegExp regExp("\\((\\d+)%\\)");
  73
  74         const result_t result = awaitProcess(process, abortFlag, [this, &prevProgress, &regExp](const QString &text)
  75         {
  76                 if (regExp.lastIndexIn(text) >= 0)
  77                 {
  78                         qint32 newProgress;
  79                         if (MUtils::regexp_parse_int32(regExp, newProgress))
  80                         {
  81                                 if (newProgress > prevProgress)
  82                                 {
  83                                         emit statusUpdated(newProgress);
  84                                         prevProgress = NEXT_PROGRESS(newProgress);
  85                                 }
  86                         }
  87                         return true;
  88                 }
  89                 return false;
  90         });
  91
  92         return (result == RESULT_SUCCESS);
  93 }
  94
  95 bool OpusDecoder::isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion)
  96 {
  97         if(containerType.compare("OGG", Qt::CaseInsensitive) == 0)
  98         {
  99                 if(formatType.compare("Opus", Qt::CaseInsensitive) == 0)
 100                 {
 101                         {
 102                                 return true;
 103                         }
 104                 }
 105         }
 106
 107         return false;
 108 }
 109
 110 const AbstractDecoder::supportedType_t *OpusDecoder::supportedTypes(void)
 111 {
 112         static const char *exts[] =
 113         {
 114                 "opus", "ogg", NULL
 115         };
 116
 117         static const supportedType_t s_supportedTypes[] =
 118         {
 119                 { "Opus Audio Codec", exts },
 120                 { NULL, NULL }
 121         };
 122
 123         return s_supportedTypes;
 124 }