2 Copyright (C) 2008 Paul Davis
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.
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.
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.
21 #ifndef __ardour_export_formats_h__
22 #define __ardour_export_formats_h__
25 #include <boost/weak_ptr.hpp>
27 #include "pbd/failed_constructor.h"
28 #include "pbd/signals.h"
30 #include "ardour/export_format_base.h"
31 #include "ardour/export_format_compatibility.h"
36 class LIBARDOUR_API ExportFormatIncompatible : public failed_constructor {
38 virtual const char *what() const throw() { return "Export format constructor failed: Format incompatible with system"; }
41 /// Base class for formats
42 class LIBARDOUR_API ExportFormat : public ExportFormatBase, public ExportFormatBase::SelectableCompatible {
48 virtual bool set_compatibility_state (ExportFormatCompatibility const & compatibility) = 0;
49 virtual Type get_type () const = 0;
51 FormatId get_format_id () const { return *format_ids.begin(); }
52 Quality get_quality () const { return *qualities.begin(); }
54 bool has_sample_format ();
55 bool has_codec_quality ();
57 bool sample_format_is_compatible (SampleFormat format) const;
59 /* If the format has a specific sample format, this function should be overridden
60 * if the format has a selectable sample format, do not override this!
63 virtual SampleFormat get_explicit_sample_format () const { return SF_None; }
65 /* If the above is not overridden, this one should be */
67 virtual ExportFormat::SampleFormat default_sample_format () const { return SF_None; }
69 /* If the format has a channel count limit, override this */
71 virtual uint32_t get_channel_limit () const { return 256; }
73 /* If the format can be tagged with metadata override this */
75 virtual bool supports_tagging () const { return false; }
77 /* If the format contains broadcast info override this */
79 virtual bool has_broadcast_info () const { return false; }
84 void add_sample_rate (SampleRate rate) { sample_rates.insert (rate); }
85 void add_endianness (Endianness endianness) { endiannesses.insert (endianness); }
87 void set_format_id (FormatId id) { format_ids.clear (); format_ids.insert (id); }
88 void set_quality (Quality value) { qualities.clear(); qualities.insert (value); }
91 class LIBARDOUR_API HasCodecQuality {
94 CodecQuality (std::string const& n, int q)
103 typedef boost::shared_ptr<CodecQuality> CodecQualityPtr;
104 typedef std::list<CodecQualityPtr> CodecQualityList;
106 virtual ~HasCodecQuality () {}
108 void add_codec_quality (std::string const& name, int q) {
109 CodecQualityPtr ptr (new CodecQuality (name, q));
110 _codec_qualties.push_back (ptr);
113 CodecQualityList const & get_codec_qualities () const {
114 return _codec_qualties;
117 virtual int default_codec_quality () const = 0;
120 CodecQualityList _codec_qualties;
123 /// Class to be inherited by export formats that have a selectable sample format
124 class LIBARDOUR_API HasSampleFormat : public PBD::ScopedConnectionList {
127 class SampleFormatState : public ExportFormatBase::SelectableCompatible {
129 SampleFormatState (ExportFormatBase::SampleFormat format, std::string name)
135 ExportFormatBase::SampleFormat format;
138 class DitherTypeState : public ExportFormatBase::SelectableCompatible {
140 DitherTypeState (ExportFormatBase::DitherType type, Glib::ustring name) :
141 type (type) { set_name (name); }
143 ExportFormatBase::DitherType type;
146 typedef boost::shared_ptr<SampleFormatState> SampleFormatPtr;
147 typedef boost::weak_ptr<SampleFormatState> WeakSampleFormatPtr;
148 typedef std::list<SampleFormatPtr> SampleFormatList;
150 typedef boost::shared_ptr<DitherTypeState> DitherTypePtr;
151 typedef boost::weak_ptr<DitherTypeState> WeakDitherTypePtr;
152 typedef std::list<DitherTypePtr> DitherTypeList;
156 HasSampleFormat (ExportFormatBase::SampleFormatSet & sample_formats);
157 virtual ~HasSampleFormat () {};
159 void add_sample_format (ExportFormatBase::SampleFormat format);
161 SampleFormatList const & get_sample_formats () const { return sample_format_states; }
162 DitherTypeList const & get_dither_types () const { return dither_type_states; }
164 SampleFormatPtr get_selected_sample_format ();
165 DitherTypePtr get_selected_dither_type ();
167 /* Proxies for signals from sample formats and dither types */
169 PBD::Signal2<void,bool, WeakSampleFormatPtr> SampleFormatSelectChanged;
170 PBD::Signal2<void,bool, WeakSampleFormatPtr> SampleFormatCompatibleChanged;
172 PBD::Signal2<void,bool, WeakDitherTypePtr> DitherTypeSelectChanged;
173 PBD::Signal2<void,bool, WeakDitherTypePtr> DitherTypeCompatibleChanged;
175 static std::string get_sample_format_name (ExportFormatBase::SampleFormat format);
180 DitherTypeList dither_type_states;
181 SampleFormatList sample_format_states;
184 /* Connected to signals */
186 void add_dither_type (ExportFormatBase::DitherType type, std::string name);
187 void update_sample_format_selection (bool);
188 void update_dither_type_selection (bool);
190 /* Reference to ExportFormatBase::sample_formats */
191 ExportFormatBase::SampleFormatSet & _sample_formats;
194 class LIBARDOUR_API ExportFormatLinear : public ExportFormat, public HasSampleFormat {
197 ExportFormatLinear (std::string name, FormatId format_id);
198 ~ExportFormatLinear () {};
200 bool set_compatibility_state (ExportFormatCompatibility const & compatibility);
201 Type get_type () const { return T_Sndfile; }
203 void add_endianness (Endianness endianness) { endiannesses.insert (endianness); }
205 void set_default_sample_format (SampleFormat sf) { _default_sample_format = sf; }
206 SampleFormat default_sample_format () const { return _default_sample_format; }
209 SampleFormat _default_sample_format;
212 class LIBARDOUR_API ExportFormatOggVorbis : public ExportFormat, public HasCodecQuality {
214 ExportFormatOggVorbis ();
215 ~ExportFormatOggVorbis () {};
217 bool set_compatibility_state (ExportFormatCompatibility const & compatibility);
218 Type get_type () const { return T_Sndfile; }
219 SampleFormat get_explicit_sample_format () const { return SF_Vorbis; }
220 virtual bool supports_tagging () const { return true; }
222 int default_codec_quality () const { return 40; }
225 class LIBARDOUR_API ExportFormatFLAC : public ExportFormat, public HasSampleFormat {
228 ~ExportFormatFLAC () {};
230 bool set_compatibility_state (ExportFormatCompatibility const & compatibility);
231 Type get_type () const { return T_Sndfile; }
233 uint32_t get_channel_limit () const { return 8; }
234 SampleFormat default_sample_format () const { return SF_16; }
235 virtual bool supports_tagging () const { return true; }
238 class LIBARDOUR_API ExportFormatBWF : public ExportFormat, public HasSampleFormat {
241 ~ExportFormatBWF () {};
243 bool set_compatibility_state (ExportFormatCompatibility const & compatibility);
244 Type get_type () const { return T_Sndfile; }
246 SampleFormat default_sample_format () const { return SF_16; }
247 virtual bool has_broadcast_info () const { return true; }
251 class LIBARDOUR_API ExportFormatFFMPEG : public ExportFormat, public HasCodecQuality {
253 ExportFormatFFMPEG (std::string const& name, std::string const& ext);
254 ~ExportFormatFFMPEG () {};
256 bool set_compatibility_state (ExportFormatCompatibility const & compatibility);
257 Type get_type () const { return T_FFMPEG; }
258 SampleFormat get_explicit_sample_format () const { return SF_Float; }
259 int default_codec_quality () const { return -2; }
262 } // namespace ARDOUR
264 #endif /* __ardour_export_formats__ */