X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fdata%2Fsignaldata.h;h=280874c4785d074af42b9a7284ae888c4217b02b;hb=e8d009288de28cb194bc7964f96677c2baf900c9;hp=7f64bdb4cc122d83579c315e4b56cb8957e992c7;hpb=1b1ec774978b65209ce2b454cbf81da499b797d2;p=pulseview.git

diff --git a/pv/data/signaldata.h b/pv/data/signaldata.h
index 7f64bdb4..280874c4 100644
--- a/pv/data/signaldata.h
+++ b/pv/data/signaldata.h
@@ -29,15 +29,22 @@ namespace data {
 class SignalData
 {
 public:
-	SignalData(double samplerate);
+	SignalData();
+	virtual ~SignalData() {}
 
 public:
-	double get_samplerate() const;
+	double samplerate() const;
+	void set_samplerate(double samplerate);
+
 	double get_start_time() const;
 
+	virtual void clear() = 0;
+
+	virtual uint64_t get_max_sample_count() const = 0;
+
 protected:
-	const double _samplerate;
-	const double _start_time;
+	double _start_time;
+	double _samplerate;
 };
 
 } // namespace data