C++11 tidying.

[dcpomatic.git] / src / lib / audio_filter.h

diff --git a/src/lib/audio_filter.h b/src/lib/audio_filter.h
index b7a675e6b85fa3472f9e6d9ffd2aaaed42fb6975..922cc5fdb483fdec278721becf8f4528776600dd 100644 (file)
--- a/src/lib/audio_filter.h
+++ b/src/lib/audio_filter.h
@@ -1,38 +1,41 @@
 /*
-    Copyright (C) 2014 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2014-2021 Carl Hetherington <cth@carlh.net>
 
-    This program is free software; you can redistribute it and/or modify
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.
 
-    This program is distributed in the hope that it will be useful,
+    DCP-o-matic is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
 
 */
 
 #ifndef DCPOMATIC_AUDIO_FILTER_H
 #define DCPOMATIC_AUDIO_FILTER_H
 
-#include <boost/shared_ptr.hpp>
+
+#include <memory>
+
 
 class AudioBuffers;
 struct audio_filter_impulse_input_test;
 
+
 /** An audio filter which can take AudioBuffers and apply some filtering operation,
  *  returning filtered samples
  */
 class AudioFilter
 {
 public:
-       AudioFilter (float transition_bandwidth)
-               : _ir (0)
+       explicit AudioFilter (float transition_bandwidth)
        {
                _M = 4 / transition_bandwidth;
                if (_M % 2) {
@@ -42,7 +45,7 @@ public:
 
        virtual ~AudioFilter ();
 
-       boost::shared_ptr<AudioBuffers> run (boost::shared_ptr<const AudioBuffers> in);
+       std::shared_ptr<AudioBuffers> run (std::shared_ptr<const AudioBuffers> in);
 
        void flush ();
 
@@ -52,11 +55,12 @@ protected:
 
        float* sinc_blackman (float cutoff, bool invert) const;
 
-       float* _ir;
+       float* _ir = nullptr;
        int _M;
-       boost::shared_ptr<AudioBuffers> _tail;
+       std::shared_ptr<AudioBuffers> _tail;
 };
 
+
 class LowPassAudioFilter : public AudioFilter
 {
 public:
@@ -67,6 +71,7 @@ public:
        LowPassAudioFilter (float transition_bandwidth, float cutoff);
 };
 
+
 class HighPassAudioFilter : public AudioFilter
 {
 public:
@@ -77,6 +82,7 @@ public:
        HighPassAudioFilter (float transition_bandwidth, float cutoff);
 };
 
+
 class BandPassAudioFilter : public AudioFilter
 {
 public:
@@ -88,4 +94,5 @@ public:
        BandPassAudioFilter (float transition_bandwidth, float lower, float higher);
 };
 
+
 #endif