2 * This file is part of the PulseView project.
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #ifndef PULSEVIEW_PV_DATA_ANALOGSNAPSHOT_H
22 #define PULSEVIEW_PV_DATA_ANALOGSNAPSHOT_H
29 namespace AnalogSnapshotTest {
36 class AnalogSnapshot : public Snapshot
45 struct EnvelopeSection
50 EnvelopeSample *samples;
58 EnvelopeSample *samples;
62 static const unsigned int ScaleStepCount = 10;
63 static const int EnvelopeScalePower;
64 static const int EnvelopeScaleFactor;
65 static const float LogEnvelopeScaleFactor;
66 static const uint64_t EnvelopeDataUnit;
69 AnalogSnapshot(const sr_datafeed_analog &analog);
71 virtual ~AnalogSnapshot();
73 void append_payload(const sr_datafeed_analog &analog);
75 const float* get_samples(int64_t start_sample,
76 int64_t end_sample) const;
78 void get_envelope_section(EnvelopeSection &s,
79 uint64_t start, uint64_t end, float min_length) const;
82 void reallocate_envelope(Envelope &l);
84 void append_payload_to_envelope_levels();
87 struct Envelope _envelope_levels[ScaleStepCount];
89 friend class AnalogSnapshotTest::Basic;
95 #endif // PULSEVIEW_PV_DATA_ANALOGSNAPSHOT_H