src/Encoder_Abstract.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2014 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 #pragma once
  24
  25 #include "Global.h"
  26 #include "Tool_Abstract.h"
  27 #include "Model_AudioFile.h"
  28
  29 class QProcess;
  30 class QStringList;
  31 class QMutex;
  32
  33 class AbstractEncoderInfo
  34 {
  35 public:
  36         typedef enum
  37         {
  38                 TYPE_BITRATE = 0,
  39                 TYPE_APPROX_BITRATE = 1,
  40                 TYPE_QUALITY_LEVEL_INT = 2,
  41                 TYPE_QUALITY_LEVEL_FLT = 3,
  42                 TYPE_COMPRESSION_LEVEL = 4,
  43                 TYPE_UNCOMPRESSED = 5
  44         }
  45         value_type_t;
  46
  47         virtual bool isModeSupported(int mode) const = 0;       //Returns whether the encoder does support the current RC mode
  48         virtual int valueCount(int mode) const = 0;                     //The number of bitrate/quality values for current RC mode
  49         virtual int valueAt(int mode, int index) const = 0;     //The bitrate/quality value at 'index' for the current RC mode
  50         virtual int valueType(int mode) const = 0;                      //The display type of the values for the current RC mode
  51         virtual const char* description(void) const = 0;        //Description of the encoder that can be displayed to the user
  52 };
  53
  54 class AbstractEncoder : public AbstractTool
  55 {
  56         Q_OBJECT
  57
  58 public:
  59         AbstractEncoder(void);
  60         virtual ~AbstractEncoder(void);
  61
  62         //Internal encoder API
  63         virtual bool encode(const QString &sourceFile, const AudioFileModel_MetaInfo &metaInfo, const unsigned int duration, const QString &outputFile, volatile bool *abortFlag) = 0;
  64         virtual bool isFormatSupported(const QString &containerType, const QString &containerProfile, const QString &formatType, const QString &formatProfile, const QString &formatVersion) = 0;
  65         virtual QString extension(void) = 0;
  66         virtual const unsigned int *supportedSamplerates(void);
  67         virtual const unsigned int *supportedChannelCount(void);
  68         virtual const unsigned int *supportedBitdepths(void);
  69         virtual const bool needsTimingInfo(void);
  70
  71         //Common setter methods
  72         virtual void setBitrate(int bitrate);
  73         virtual void setRCMode(int mode);
  74         virtual void setCustomParams(const QString &customParams);
  75
  76         //Encoder info
  77         static const AbstractEncoderInfo *getEncoderInfo(void)
  78         {
  79                 THROW("This method shall be re-implemented in derived classes!");
  80                 return NULL;
  81         }
  82
  83 protected:
  84         int m_configBitrate;                    //Bitrate *or* VBR-quality-level
  85         int m_configRCMode;                             //Rate-control mode
  86         QString m_configCustomParams;   //Custom parameters, if any
  87
  88         //Helper functions
  89         bool isUnicode(const QString &text);
  90         QString cleanTag(const QString &text);
  91 };