#include <CoreFoundation/CoreFoundation.h>
#endif /* __APPLE__ */
-bool string_is_affirmative (const std::string&);
-
+#include "ardour/libardour_visibility.h"
#include "ardour/ardour.h"
#include "ardour/data_type.h"
+#include "ardour/dB.h"
class XMLNode;
-std::string legalize_for_path (const std::string& str);
-XMLNode* find_named_node (const XMLNode& node, std::string name);
-std::string bool_as_string (bool);
+namespace ARDOUR {
+
+LIBARDOUR_API std::string legalize_for_path (const std::string& str);
+LIBARDOUR_API std::string legalize_for_universal_path (const std::string& str);
+LIBARDOUR_API std::string legalize_for_uri (const std::string& str);
+LIBARDOUR_API std::string legalize_for_path_2X (const std::string& str);
+LIBARDOUR_API XMLNode* find_named_node (const XMLNode& node, std::string name);
+LIBARDOUR_API std::string bool_as_string (bool);
static inline float f_max(float x, float a) {
x -= a;
return (x);
}
-std::string bump_name_once(const std::string& s, char delimiter);
+LIBARDOUR_API std::string bump_name_once(const std::string& s, char delimiter);
+LIBARDOUR_API std::string bump_name_number(const std::string& s);
-int cmp_nocase (const std::string& s, const std::string& s2);
+LIBARDOUR_API int cmp_nocase (const std::string& s, const std::string& s2);
+LIBARDOUR_API int cmp_nocase_utf8 (const std::string& s1, const std::string& s2);
-int touch_file(std::string path);
+LIBARDOUR_API std::string region_name_from_path (std::string path, bool strip_channels, bool add_channel_suffix = false, uint32_t total = 0, uint32_t this_one = 0);
+LIBARDOUR_API bool path_is_paired (std::string path, std::string& pair_base);
-std::string path_expand (std::string);
-std::string region_name_from_path (std::string path, bool strip_channels, bool add_channel_suffix = false, uint32_t total = 0, uint32_t this_one = 0);
-bool path_is_paired (std::string path, std::string& pair_base);
+LIBARDOUR_API void compute_equal_power_fades (ARDOUR::framecnt_t nframes, float* in, float* out);
-void compute_equal_power_fades (ARDOUR::framecnt_t nframes, float* in, float* out);
+LIBARDOUR_API const char* sync_source_to_string (ARDOUR::SyncSource src, bool sh = false);
+LIBARDOUR_API ARDOUR::SyncSource string_to_sync_source (std::string str);
-const char* sync_source_to_string (ARDOUR::SyncSource src, bool sh = false);
-ARDOUR::SyncSource string_to_sync_source (std::string str);
-
-const char* edit_mode_to_string (ARDOUR::EditMode);
-ARDOUR::EditMode string_to_edit_mode (std::string);
+LIBARDOUR_API const char* edit_mode_to_string (ARDOUR::EditMode);
+LIBARDOUR_API ARDOUR::EditMode string_to_edit_mode (std::string);
+#undef OLD_GAIN_MATH
+#define OLD_GAIN_MATH
static inline double
gain_to_slider_position (ARDOUR::gain_t g)
{
if (g == 0) return 0;
- return pow((6.0*log(g)/log(2.0)+192.0)/198.0, 8.0);
+#ifndef OLD_GAIN_MATH
+ /* Power Law With Exponential Cutoff 2D, fit to data from TC Spectra
+ console (image of fader gradations
+
+ y = C * x(-T) * exp(-x/K)
+
+ C = 8.2857630370864188E-01
+ T = -5.1526743785019269E-01
+ K = 7.8990885960495589E+00
+
+ */
+
+ return 8.2857630370864188E-01 * pow(g,5.1526743785019269E-01) * exp (-g/7.8990885960495589E+00);
+#else
+ return pow((6.0*log(g)/log(2.0)+192.0)/198.0, 8.0);
+#endif
}
static inline ARDOUR::gain_t
slider_position_to_gain (double pos)
{
+ if (pos == 0.0) {
+ return 0.0;
+ }
+
+#ifndef OLD_GAIN_MATH
+ /* 5th order polynomial function fit to data from a TC Spectra console
+ fader (image of fader gradations).
+
+ y = a + bx1 + cx2 + dx3 + fx4 + gx5
+
+ a = -1.1945480381045521E-02
+ b = 1.5809476525537265E+00
+ c = -1.5850710838966151E+01
+ d = 6.1643128605961991E+01
+ f = -8.5525246160607693E+01
+ g = 4.1312725896188283E+01
+
+ */
+
+ double p = pos;
+ double g = -1.1945480381045521E-02;
+
+ g += 1.5809476525537265E+00 * pos;
+ pos *= p;
+ g += -1.5850710838966151E+01 * pos;
+ pos *= p;
+ g += 6.1643128605961991E+01 * pos;
+ pos *= p;
+ g += -8.5525246160607693E+01 * pos;
+ pos *= p;
+ g += 4.1312725896188283E+01 * pos;
+
+ return g;
+#else
/* XXX Marcus writes: this doesn't seem right to me. but i don't have a better answer ... */
if (pos == 0.0) return 0;
return pow (2.0,(sqrt(sqrt(sqrt(pos)))*198.0-192.0)/6.0);
+#endif
}
+#undef OLD_GAIN_MATH
+
+LIBARDOUR_API double gain_to_slider_position_with_max (double g, double max_gain = 2.0);
+LIBARDOUR_API double slider_position_to_gain_with_max (double g, double max_gain = 2.0);
/* I don't really like hard-coding these falloff rates here
* Probably should use a map of some kind that could be configured
* These rates are db/sec.
*/
-#define METER_FALLOFF_OFF 0.0f
-#define METER_FALLOFF_SLOWEST 6.6f // BBC standard
-#define METER_FALLOFF_SLOW 8.6f // BBC standard
-#define METER_FALLOFF_MEDIUM 20.0f
-#define METER_FALLOFF_FAST 32.0f
-#define METER_FALLOFF_FASTER 46.0f
-#define METER_FALLOFF_FASTEST 70.0f
+#define METER_FALLOFF_OFF 0.0f
+#define METER_FALLOFF_SLOWEST 6.6f // BBC standard
+#define METER_FALLOFF_SLOW 8.6f // BBC standard, EBU 24dB / 2.8sec
+#define METER_FALLOFF_SLOWISH 12.0f // DIN 20dB / 1.7 sec
+#define METER_FALLOFF_MODERATE 13.3f // EBU-PPM, IRT PPM- 20dB / 1.5 sec
+#define METER_FALLOFF_MEDIUM 20.0f
+#define METER_FALLOFF_FAST 32.0f
+
+LIBARDOUR_API float meter_falloff_to_float (ARDOUR::MeterFalloff);
+LIBARDOUR_API ARDOUR::MeterFalloff meter_falloff_from_float (float);
+LIBARDOUR_API float meter_falloff_to_db_per_sec (float);
-float meter_falloff_to_float (ARDOUR::MeterFalloff);
-ARDOUR::MeterFalloff meter_falloff_from_float (float);
-float meter_falloff_to_db_per_sec (float);
+LIBARDOUR_API const char* native_header_format_extension (ARDOUR::HeaderFormat, const ARDOUR::DataType& type);
+LIBARDOUR_API bool matching_unsuffixed_filename_exists_in (const std::string& dir, const std::string& name);
-const char* native_header_format_extension (ARDOUR::HeaderFormat, const ARDOUR::DataType& type);
-bool matching_unsuffixed_filename_exists_in (const std::string& dir, const std::string& name);
+LIBARDOUR_API uint32_t how_many_dsp_threads ();
#if __APPLE__
-std::string CFStringRefToStdString(CFStringRef stringRef);
+LIBARDOUR_API std::string CFStringRefToStdString(CFStringRef stringRef);
#endif // __APPLE__
+} //namespave
+
#endif /* __ardour_utils_h__ */
projects / ardour.git / blobdiff