Add GPL boilerplate; allow building without libsndfile.

4 files changed, 38 insertions, 8 deletions

diff --git a/src/leqm_nrt.cc b/src/leqm_nrt.cc
index b778357..7785cbc 100644
--- a/src/leqm_nrt.cc
+++ b/src/leqm_nrt.cc
@@ -21,11 +21,13 @@
 
  */
 
-#include "leqm-nrt.h"
+#include "leqm_nrt.h"
 
 #include <stdio.h>
 #include <math.h>
+#ifdef LEQM_NRT_WITH_LIBSNDFILE
 #include <sndfile.h>
+#endif
 #include <unistd.h>
 #include <pthread.h>
 #include <string.h>
@@ -242,6 +244,7 @@ static std::vector<double> inverse_fft(std::vector<double> const& freq_response)
 }
 
 
+#ifdef LEQM_NRT_WITH_LIBSNDFILE
 Result leqm_nrt::calculate_file(
 	std::string sound_filename,
 	std::vector<double> channel_corrections,
@@ -302,6 +305,7 @@ Result leqm_nrt::calculate_file(
 
 	return {calculator.leq_m(), calculator.leq_nw()};
 }
+#endif
 
 
 std::vector<double> calculate_ir(double number_of_filter_interpolation_points, int sample_rate, int bits_per_sample)
diff --git a/src/leqm_nrt.h b/src/leqm_nrt.h
index 2dc25f0..189f0cf 100644
--- a/src/leqm_nrt.h
+++ b/src/leqm_nrt.h
@@ -1,3 +1,26 @@
+/*
+    leqm-nrt is a  non-real-time implementation
+    of Leq(M) measurement according to ISO 21727:2004(E)
+    "Cinematography -- Method of measurement of perceived
+    loudness of motion-picture audio material"
+
+    Copyright (C) 2011-2013, 2017-2018 Luca Trisciani
+
+    This program 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 3 of the License, or
+    (at your option) any later version.
+
+    This program 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, see <http://www.gnu.org/licenses/>.
+
+ */
+
 #pragma once
 
 #include <string>
@@ -97,6 +120,7 @@ struct Result
 };
 
 
+#ifdef LEQM_NRT_WITH_LIBSNDFILE
 Result calculate_file(
 	std::string sound_filename,
 	std::vector<double> channel_corrections,
@@ -104,6 +128,7 @@ Result calculate_file(
 	int number_of_filter_interpolation_points,
 	int num_cpu
 	);
+#endif
 
 
 double convert_log_to_linear_single(double in);
diff --git a/src/leqm_nrt_cli.cc b/src/leqm_nrt_cli.cc
index e4110bb..6387f69 100644
--- a/src/leqm_nrt_cli.cc
+++ b/src/leqm_nrt_cli.cc
@@ -21,7 +21,7 @@
 
  */
 
-#include "leqm-nrt.h"
+#include "leqm_nrt.h"
 
 #include <stdio.h>
 #include <math.h>
diff --git a/src/wscript b/src/wscript
index a5c51a6..cbea215 100644
--- a/src/wscript
+++ b/src/wscript
@@ -5,12 +5,13 @@ def build(bld):
     obj.export_includes = ['.']
     obj.source = 'leqm_nrt.cc'
 
-    obj = bld(features='cxx cxxprogram')
-    obj.name = 'leqm_nrt_cli'
-    obj.target = 'leqm_nrt'
-    obj.source = 'leqm_nrt_cli.cc'
-    obj.use = 'libleqm_nrt'
-    obj.uselib = 'SNDFILE'
+    if bld.env.WITH_LIBSNDFILE:
+        obj = bld(features='cxx cxxprogram')
+        obj.name = 'leqm_nrt_cli'
+        obj.target = 'leqm_nrt'
+        obj.source = 'leqm_nrt_cli.cc'
+        obj.use = 'libleqm_nrt'
+        obj.uselib = 'SNDFILE'
 
     bld.install_files('${PREFIX}/include', 'leqm_nrt.h')