Implemented AnalogSnapshot::get_envelope_section

[pulseview.git] / pv / data / analogsnapshot.h

diff --git a/pv/data/analogsnapshot.h b/pv/data/analogsnapshot.h
index 59c43187788e4c231dc85d652f0cb849ed5f7a91..74d26763825167a41c81390c08647ba0a3b03560 100644 (file)
--- 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);