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/libardour_visibility.h"
  34 #include "ardour/types.h"
  35
  36 #include "audiographer/general/sample_format_converter.h"
  37
  38 namespace ARDOUR
  39 {
  40
  41 class LIBARDOUR_API ExportFormatBase {
  42   public:
  43
  44         enum Type {
  45                 T_None = 0,
  46                 T_Sndfile
  47         };
  48
  49         enum FormatId {
  50                 F_None = 0,
  51                 F_WAV = SF_FORMAT_WAV,
  52                 F_W64 = SF_FORMAT_W64,
  53                 F_CAF = SF_FORMAT_CAF,
  54                 F_AIFF = SF_FORMAT_AIFF,
  55                 F_AU = SF_FORMAT_AU,
  56                 F_IRCAM = SF_FORMAT_IRCAM,
  57                 F_RAW = SF_FORMAT_RAW,
  58                 F_FLAC = SF_FORMAT_FLAC,
  59                 F_Ogg = SF_FORMAT_OGG
  60         };
  61
  62         enum Endianness {
  63                 E_FileDefault = SF_ENDIAN_FILE, /* Default file endian-ness. */
  64                 E_Little = SF_ENDIAN_LITTLE,    /* Force little endian-ness. */
  65                 E_Big = SF_ENDIAN_BIG,          /* Force big endian-ness. */
  66                 E_Cpu = SF_ENDIAN_CPU           /* Force CPU endian-ness. */
  67         };
  68
  69         enum SampleFormat {
  70                 SF_None = 0,
  71                 SF_8 = SF_FORMAT_PCM_S8,
  72                 SF_16 = SF_FORMAT_PCM_16,
  73                 SF_24 = SF_FORMAT_PCM_24,
  74                 SF_32 = SF_FORMAT_PCM_32,
  75                 SF_U8 = SF_FORMAT_PCM_U8,
  76                 SF_Float = SF_FORMAT_FLOAT,
  77                 SF_Double = SF_FORMAT_DOUBLE,
  78                 SF_Vorbis = SF_FORMAT_VORBIS
  79         };
  80
  81         enum DitherType {
  82                 D_None = AudioGrapher::D_None,
  83                 D_Rect = AudioGrapher::D_Rect,
  84                 D_Tri = AudioGrapher::D_Tri,
  85                 D_Shaped = AudioGrapher::D_Shaped
  86         };
  87
  88         enum Quality {
  89                 Q_None = 0,
  90                 Q_Any,
  91                 Q_LosslessLinear,
  92                 Q_LosslessCompression,
  93                 Q_LossyCompression
  94         };
  95
  96         enum SampleRate {
  97                 SR_None = 0,
  98                 SR_Session = 1,
  99                 SR_8 = 8000,
 100                 SR_22_05 = 22050,
 101                 SR_44_1 = 44100,
 102                 SR_48 = 48000,
 103                 SR_88_2 = 88200,
 104                 SR_96 = 96000,
 105                 SR_176_4 = 176400,
 106                 SR_192 = 192000
 107         };
 108
 109         enum SRCQuality {
 110                 SRC_SincBest = SRC_SINC_BEST_QUALITY,
 111                 SRC_SincMedium = SRC_SINC_MEDIUM_QUALITY,
 112                 SRC_SincFast = SRC_SINC_FASTEST,
 113                 SRC_ZeroOrderHold = SRC_ZERO_ORDER_HOLD,
 114                 SRC_Linear = SRC_LINEAR
 115         };
 116
 117         /// Class for managing selection and compatibility states
 118         class LIBARDOUR_API SelectableCompatible {
 119           public:
 120                 SelectableCompatible ()
 121                         : _selected (false), _compatible (true) { }
 122                 ~SelectableCompatible () {}
 123
 124                 PBD::Signal1<void,bool> SelectChanged;
 125                 PBD::Signal1<void,bool> CompatibleChanged;
 126
 127                 bool selected () const { return _selected; }
 128                 bool compatible () const { return _compatible; }
 129                 std::string name () const { return _name; }
 130
 131                 void set_selected (bool value);
 132                 void set_compatible (bool value);
 133
 134           protected:
 135                 void set_name (std::string name) { _name = name; }
 136
 137           private:
 138                 bool _selected;
 139                 bool _compatible;
 140
 141                 std::string _name;
 142         };
 143
 144   public:
 145
 146         ExportFormatBase ();
 147         ExportFormatBase (ExportFormatBase const & other);
 148
 149         virtual ~ExportFormatBase ();
 150
 151         boost::shared_ptr<ExportFormatBase> get_intersection (ExportFormatBase const & other) const;
 152         boost::shared_ptr<ExportFormatBase> get_union (ExportFormatBase const & other) const;
 153
 154         bool endiannesses_empty () const { return endiannesses.empty (); }
 155         bool sample_formats_empty () const { return sample_formats.empty (); }
 156         bool sample_rates_empty () const { return sample_rates.empty (); }
 157         bool formats_empty () const { return format_ids.empty (); }
 158         bool qualities_empty () const { return qualities.empty (); }
 159
 160         bool has_endianness (Endianness endianness) const { return endiannesses.find (endianness) != endiannesses.end() ; }
 161         bool has_sample_format (SampleFormat format) const { return sample_formats.find (format) != sample_formats.end(); }
 162         bool has_sample_rate (SampleRate rate) const { return sample_rates.find (rate) != sample_rates.end(); }
 163         bool has_format (FormatId format) const { return format_ids.find (format) != format_ids.end(); }
 164         bool has_quality (Quality quality) const { return qualities.find (quality) != qualities.end(); }
 165
 166         void set_extension (std::string const & extension) { _extension = extension; }
 167         std::string const & extension () const { return _extension; }
 168
 169         static SampleRate nearest_sample_rate (framecnt_t sample_rate);
 170
 171   protected:
 172
 173         friend class HasSampleFormat;
 174         typedef std::set<SampleFormat> SampleFormatSet;
 175         SampleFormatSet sample_formats;
 176
 177   protected:
 178         typedef std::set<Endianness> EndianSet;
 179         typedef std::set<SampleRate> SampleRateSet;
 180         typedef std::set<FormatId> FormatSet;
 181         typedef std::set<Quality> QualitySet;
 182
 183         EndianSet       endiannesses;
 184         SampleRateSet   sample_rates;
 185         FormatSet       format_ids;
 186         QualitySet      qualities;
 187
 188   private:
 189
 190         std::string  _extension;
 191
 192         enum SetOperation {
 193                 SetUnion,
 194                 SetIntersection
 195         };
 196
 197         boost::shared_ptr<ExportFormatBase> do_set_operation (ExportFormatBase const & other, SetOperation operation) const;
 198 };
 199
 200 } // namespace ARDOUR
 201
 202 #endif /* __ardour_export_format_base_h__ */