Add (automatic) samplerate detection to the project.

1 files changed, 38 insertions, 0 deletions

diff --git a/src/filelist.cc b/src/filelist.cc
index da7f399..9c6f591 100644
--- a/src/filelist.cc
+++ b/src/filelist.cc
@@ -47,6 +47,8 @@
 #include <QPainter>
 #include <QHeaderView>
 
+#include <sndfile.h>
+
 class ChannelMapDeligate
 	: public QStyledItemDelegate
 {
@@ -423,6 +425,18 @@ FileList::FileList(Instrument& instrument)
 	createMenus();
 }
 
+static double getSamplerate(const QString& file)
+{
+	SF_INFO sf_info;
+	SNDFILE *fh = sf_open(file.toStdString().c_str(), SFM_READ, &sf_info);
+	if(!fh)
+	{
+		return -1.0;
+	}
+
+	return sf_info.samplerate;
+}
+
 void FileList::addFiles()
 {
 	auto root = instrument.getProject().getRawFileRoot();
@@ -441,6 +455,30 @@ void FileList::addFiles()
 		QFileInfo fi(file);
 		QString name = fi.baseName();
 		path = fi.absolutePath();
+
+		double samplerate = getSamplerate(file);
+		if(samplerate == -1.0)
+		{
+			// Error reading file. Skip it.
+			std::cout << "Error reading file. Skip it.\n";
+			++i;
+			continue;
+		}
+
+		if(instrument.getProject().getProjectSamplerate() == -1.0)
+		{
+			// Samplerate not yet set
+			instrument.getProject().setProjectSamplerate(samplerate);
+		}
+
+		if(instrument.getProject().getProjectSamplerate() != samplerate)
+		{
+			// Samplerate of file differs from the projeft samplerate
+			std::cout << "Samplerate of file differs from the project samplerate:\n";
+			std::cout << " project: " << instrument.getProject().getProjectSamplerate() << std::endl;
+			std::cout << " file: " << samplerate << std::endl;
+		}
+
 		if(root == file.left(root.length()))
 		{
 			file = file.mid(root.length() + 1);