/*
- Copyright (C) 2006 Paul Davis
-
+ Copyright (C) 2006 Paul Davis
+
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your option)
any later version.
-
+
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
-
+
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
675 Mass Ave, Cambridge, MA 02139, USA.
#define __ardour_meter_h__
#include <vector>
-#include <ardour/types.h>
-#include <pbd/fastlog.h>
+#include "ardour/libardour_visibility.h"
+#include "ardour/types.h"
+#include "ardour/processor.h"
+#include "pbd/fastlog.h"
+
+#include "ardour/kmeterdsp.h"
+#include "ardour/iec1ppmdsp.h"
+#include "ardour/iec2ppmdsp.h"
+#include "ardour/vumeterdsp.h"
namespace ARDOUR {
class ChanCount;
class Session;
-
/** Meters peaks on the input and stores them for access.
*/
-class PeakMeter {
+class LIBARDOUR_API PeakMeter : public Processor {
public:
- PeakMeter(Session& s) : _session(s) {}
+ PeakMeter(Session& s, const std::string& name);
+ ~PeakMeter();
- void setup (const ChanCount& in);
void reset ();
void reset_max ();
+ bool can_support_io_configuration (const ChanCount& in, ChanCount& out);
+ bool configure_io (ChanCount in, ChanCount out);
+
+ /* special method for meter, to ensure that it can always handle the maximum
+ number of streams in the route, no matter where we put it.
+ */
+
+ void set_max_channels (const ChanCount&);
+
+ /* tell the meter than no matter how many channels it can handle,
+ `in' is the number it is actually going be handling from
+ now on.
+ */
+
+ void reflect_inputs (const ChanCount& in);
+ void emit_configuration_changed ();
+
/** Compute peaks */
- void run (BufferSet& bufs, nframes_t nframes, nframes_t offset=0);
-
- float peak_power (uint32_t n) {
- if (n < _visible_peak_power.size()) {
- return _visible_peak_power[n];
- } else {
- return minus_infinity();
- }
- }
-
- float max_peak_power (uint32_t n) {
- if (n < _max_peak_power.size()) {
- return _max_peak_power[n];
- } else {
- return minus_infinity();
- }
- }
+ void run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_sample, double speed, pframes_t nframes, bool);
+
+ void activate () { }
+ void deactivate () { }
+
+ ChanCount input_streams () const { return current_meters; }
+ ChanCount output_streams () const { return current_meters; }
+
+ float meter_level (uint32_t n, MeterType type);
+
+ void set_type(MeterType t);
+ MeterType get_type() { return _meter_type; }
+
+
+ PBD::Signal1<void, MeterType> TypeChanged;
+
+protected:
+ XMLNode& state ();
private:
-
friend class IO;
- void meter();
- Session& _session;
- std::vector<float> _peak_power;
- std::vector<float> _visible_peak_power;
- std::vector<float> _max_peak_power;
-};
+ /** The number of meters that we are currently handling;
+ * may be different to _configured_input and _configured_output
+ * as it can be altered outside a ::configure_io by ::reflect_inputs.
+ */
+ ChanCount current_meters;
+
+ bool _reset_dpm;
+ bool _reset_max;
+
+ uint32_t _bufcnt;
+ std::vector<float> _peak_buffer; // internal, integrate
+ std::vector<float> _peak_power; // includes accurate falloff, hence dB
+ std::vector<float> _max_peak_signal; // dB calculation is done on demand
+ float _combined_peak; // Mackie surfaces expect the highest peak of all track channels
+ std::vector<Kmeterdsp *> _kmeter;
+ std::vector<Iec1ppmdsp *> _iec1meter;
+ std::vector<Iec2ppmdsp *> _iec2meter;
+ std::vector<Vumeterdsp *> _vumeter;
+
+ MeterType _meter_type;
+};
} // namespace ARDOUR