X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fdata%2Fsignaldata.h;h=280874c4785d074af42b9a7284ae888c4217b02b;hb=e8d009288de28cb194bc7964f96677c2baf900c9;hp=eb9d14c67b421124fd7319cdc38dab14d32d1d4c;hpb=caabb84c559023f179bf2c4600a5ebce34eab081;p=pulseview.git

diff --git a/pv/data/signaldata.h b/pv/data/signaldata.h
index eb9d14c6..280874c4 100644
--- a/pv/data/signaldata.h
+++ b/pv/data/signaldata.h
@@ -30,15 +30,18 @@ class SignalData
 {
 public:
 	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:
 	double _start_time;
 	double _samplerate;