Add support for Datasat AP2x and USL sound processors when converting

[dcpomatic.git] / src / lib / cinema_sound_processor.cc

diff --git a/src/lib/cinema_sound_processor.cc b/src/lib/cinema_sound_processor.cc
index 0b00ee2ee237f90a9d056e17e3cd92fc3a095b9f..1a3ba5a0f0af61fcd9b9d412a4b6111e4ffc82ca 100644 (file)
--- a/src/lib/cinema_sound_processor.cc
+++ b/src/lib/cinema_sound_processor.cc
@@ -24,6 +24,8 @@
 
 #include "cinema_sound_processor.h"
 #include "dolby_cp750.h"
+#include "usl.h"
+#include "datasat_ap2x.h"
 #include "dcpomatic_assert.h"
 #include <iostream>
 #include <cassert>
@@ -35,9 +37,12 @@ vector<CinemaSoundProcessor const *> CinemaSoundProcessor::_cinema_sound_process
 /** @param i Our id.
  *  @param n User-visible name.
  */
-CinemaSoundProcessor::CinemaSoundProcessor (string i, string n)
+CinemaSoundProcessor::CinemaSoundProcessor (string i, string n, float knee, float below, float above)
        : _id (i)
        , _name (n)
+       , _knee (knee)
+       , _below (below)
+       , _above (above)
 {
 
 }
@@ -56,6 +61,8 @@ void
 CinemaSoundProcessor::setup_cinema_sound_processors ()
 {
        _cinema_sound_processors.push_back (new DolbyCP750);
+       _cinema_sound_processors.push_back (new USL);
+       _cinema_sound_processors.push_back (new DatasatAP2x);
 }
 
 /** @param id One of our ids.
@@ -103,3 +110,33 @@ CinemaSoundProcessor::from_index (int i)
        DCPOMATIC_ASSERT (i <= int(_cinema_sound_processors.size ()));
        return _cinema_sound_processors[i];
 }
+
+float
+CinemaSoundProcessor::db_for_fader_change (float from, float to) const
+{
+       float db = 0;
+
+       if (from < to) {
+               if (from <= _knee) {
+                       float const t = min (to, _knee);
+                       db += (t - from) * _below;
+               }
+
+               if (to > 4) {
+                       float const t = max (from, _knee);
+                       db += (to - t) * _above;
+               }
+       } else {
+               if (from >= _knee) {
+                       float const t = max (to, _knee);
+                       db -= (from - t) * _above;
+               }
+
+               if (to < _knee) {
+                       float const t = min (from, _knee);
+                       db -= (t - to) * _below;
+               }
+       }
+
+       return db;
+}