X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fdata%2Fanalogsnapshot.h;h=74d26763825167a41c81390c08647ba0a3b03560;hb=8470afadbd22ba7b58f5e3bd360c2860fc39d0b0;hp=59c43187788e4c231dc85d652f0cb849ed5f7a91;hpb=340bc0a429a529af5348a7aaeff455ee258a86a6;p=pulseview.git

diff --git a/pv/data/analogsnapshot.h b/pv/data/analogsnapshot.h
index 59c43187..74d26763 100644
--- a/pv/data/analogsnapshot.h
+++ b/pv/data/analogsnapshot.h
@@ -35,13 +35,22 @@ namespace data {
 
 class AnalogSnapshot : public Snapshot
 {
-private:
+public:
 	struct EnvelopeSample
 	{
 		float min;
 		float max;
 	};
 
+	struct EnvelopeSection
+	{
+		uint64_t start;
+		unsigned int scale;
+		uint64_t length;
+		EnvelopeSample *samples;
+	};
+
+private:
 	struct Envelope
 	{
 		uint64_t length;
@@ -66,6 +75,9 @@ public:
 	const float* get_samples(int64_t start_sample,
 		int64_t end_sample) const;
 
+	void get_envelope_section(EnvelopeSection &s,
+		uint64_t start, uint64_t end, float min_length) const;
+
 private:
 	void reallocate_envelope(Envelope &l);