libs/ardour/ardour/export_format_base.h

   1 /*
   2     Copyright (C) 2008 Paul Davis
   3     Author: Sakari Bergen
   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
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18
  19 */
  20
  21 #ifndef __ardour_export_format_base_h__
  22 #define __ardour_export_format_base_h__
  23
  24 #include <set>
  25 #include <string>
  26
  27 #include <boost/shared_ptr.hpp>
  28
  29 #include <sndfile.h>
  30 #include <samplerate.h>
  31
  32 #include "pbd/signals.h"
  33 #include "ardour/types.h"
  34
  35 #include "audiographer/general/sample_format_converter.h"
  36
  37 namespace ARDOUR
  38 {
  39
  40 class ExportFormatBase {
  41   public:
  42
  43         enum Type {
  44                 T_None = 0,
  45                 T_Sndfile
  46         };
  47
  48         enum FormatId {
  49                 F_None = 0,
  50                 F_WAV = SF_FORMAT_WAV,
  51                 F_W64 = SF_FORMAT_W64,
  52                 F_CAF = SF_FORMAT_CAF,
  53                 F_AIFF = SF_FORMAT_AIFF,
  54                 F_AU = SF_FORMAT_AU,
  55                 F_IRCAM = SF_FORMAT_IRCAM,
  56                 F_RAW = SF_FORMAT_RAW,
  57                 F_FLAC = SF_FORMAT_FLAC,
  58                 F_Ogg = SF_FORMAT_OGG
  59         };
  60
  61         enum Endianness {
  62                 E_FileDefault = SF_ENDIAN_FILE, /* Default file endian-ness. */
  63                 E_Little = SF_ENDIAN_LITTLE,    /* Force little endian-ness. */
  64                 E_Big = SF_ENDIAN_BIG,          /* Force big endian-ness. */
  65                 E_Cpu = SF_ENDIAN_CPU           /* Force CPU endian-ness. */
  66         };
  67
  68         enum SampleFormat {
  69                 SF_None = 0,
  70                 SF_8 = SF_FORMAT_PCM_S8,
  71                 SF_16 = SF_FORMAT_PCM_16,
  72                 SF_24 = SF_FORMAT_PCM_24,
  73                 SF_32 = SF_FORMAT_PCM_32,
  74                 SF_U8 = SF_FORMAT_PCM_U8,
  75                 SF_Float = SF_FORMAT_FLOAT,
  76                 SF_Double = SF_FORMAT_DOUBLE,
  77                 SF_Vorbis = SF_FORMAT_VORBIS
  78         };
  79
  80         enum DitherType {
  81                 D_None = AudioGrapher::D_None,
  82                 D_Rect = AudioGrapher::D_Rect,
  83                 D_Tri = AudioGrapher::D_Tri,
  84                 D_Shaped = AudioGrapher::D_Shaped
  85         };
  86
  87         enum Quality {
  88                 Q_None = 0,
  89                 Q_Any,
  90                 Q_LosslessLinear,
  91                 Q_LosslessCompression,
  92                 Q_LossyCompression
  93         };
  94
  95         enum SampleRate {
  96                 SR_None = 0,
  97                 SR_Session = 1,
  98                 SR_8 = 8000,
  99                 SR_22_05 = 220500,
 100                 SR_44_1 = 44100,
 101                 SR_48 = 48000,
 102                 SR_88_2 = 88200,
 103                 SR_96 = 96000,
 104                 SR_192 = 192000
 105         };
 106
 107         enum SRCQuality {
 108                 SRC_SincBest = SRC_SINC_BEST_QUALITY,
 109                 SRC_SincMedium = SRC_SINC_MEDIUM_QUALITY,
 110                 SRC_SincFast = SRC_SINC_FASTEST,
 111                 SRC_ZeroOrderHold = SRC_ZERO_ORDER_HOLD,
 112                 SRC_Linear = SRC_LINEAR
 113         };
 114
 115         /// Class for managing selection and compatibility states
 116         class SelectableCompatible {
 117           public:
 118                 SelectableCompatible ()
 119                         : _selected (false), _compatible (true) { }
 120                 ~SelectableCompatible () {}
 121
 122                 PBD::Signal1<void,bool> SelectChanged;
 123                 PBD::Signal1<void,bool> CompatibleChanged;
 124
 125                 bool selected () const { return _selected; }
 126                 bool compatible () const { return _compatible; }
 127                 std::string name () const { return _name; }
 128
 129                 void set_selected (bool value);
 130                 void set_compatible (bool value);
 131
 132           protected:
 133                 void set_name (std::string name) { _name = name; }
 134
 135           private:
 136                 bool _selected;
 137                 bool _compatible;
 138
 139                 std::string _name;
 140         };
 141
 142   public:
 143
 144         ExportFormatBase ();
 145         ExportFormatBase (ExportFormatBase const & other);
 146
 147         virtual ~ExportFormatBase ();
 148
 149         boost::shared_ptr<ExportFormatBase> get_intersection (ExportFormatBase const & other) const;
 150         boost::shared_ptr<ExportFormatBase> get_union (ExportFormatBase const & other) const;
 151
 152         bool endiannesses_empty () const { return endiannesses.empty (); }
 153         bool sample_formats_empty () const { return sample_formats.empty (); }
 154         bool sample_rates_empty () const { return sample_rates.empty (); }
 155         bool formats_empty () const { return format_ids.empty (); }
 156         bool qualities_empty () const { return qualities.empty (); }
 157
 158         bool has_endianness (Endianness endianness) const { return endiannesses.find (endianness) != endiannesses.end() ; }
 159         bool has_sample_format (SampleFormat format) const { return sample_formats.find (format) != sample_formats.end(); }
 160         bool has_sample_rate (SampleRate rate) const { return sample_rates.find (rate) != sample_rates.end(); }
 161         bool has_format (FormatId format) const { return format_ids.find (format) != format_ids.end(); }
 162         bool has_quality (Quality quality) const { return qualities.find (quality) != qualities.end(); }
 163
 164         void set_extension (std::string const & extension) { _extension = extension; }
 165         std::string const & extension () const { return _extension; }
 166
 167         static SampleRate nearest_sample_rate (framecnt_t sample_rate);
 168
 169   protected:
 170
 171         friend class HasSampleFormat;
 172         typedef std::set<SampleFormat> SampleFormatSet;
 173         SampleFormatSet sample_formats;
 174
 175   protected:
 176         typedef std::set<Endianness> EndianSet;
 177         typedef std::set<SampleRate> SampleRateSet;
 178         typedef std::set<FormatId> FormatSet;
 179         typedef std::set<Quality> QualitySet;
 180
 181         EndianSet       endiannesses;
 182         SampleRateSet   sample_rates;
 183         FormatSet       format_ids;
 184         QualitySet      qualities;
 185
 186   private:
 187
 188         std::string  _extension;
 189
 190         enum SetOperation {
 191                 SetUnion,
 192                 SetIntersection
 193         };
 194
 195         boost::shared_ptr<ExportFormatBase> do_set_operation (ExportFormatBase const & other, SetOperation operation) const;
 196 };
 197
 198 } // namespace ARDOUR
 199
 200 #endif /* __ardour_export_format_base_h__ */