Merge windows+cc branch into cairocanvas branch. Not finished, need to now merge...

[ardour.git] / libs / ardour / meter.cc

diff --git a/libs/ardour/meter.cc b/libs/ardour/meter.cc
index 6c5470bbb942b20de692e450248ba6fcea2fac9b..80690bd74479e2d77c68c9ff574d77d7ab8f27f7 100644 (file)
--- a/libs/ardour/meter.cc
+++ b/libs/ardour/meter.cc
@@ -108,8 +108,12 @@ PeakMeter::run (BufferSet& bufs, framepos_t /*start_frame*/, framepos_t /*end_fr
 
        // Meter audio in to the rest of the peaks
        for (uint32_t i = 0; i < n_audio; ++i, ++n) {
-               _peak_signal[n] = compute_peak (bufs.get_audio(i).data(), nframes, _peak_signal[n]);
-               if (_meter_type & (MeterKrms | MeterK20 | MeterK14)) {
+               if (bufs.get_audio(i).silent()) {
+                       _peak_signal[n] = .0f;
+               } else {
+                       _peak_signal[n] = compute_peak (bufs.get_audio(i).data(), nframes, _peak_signal[n]);
+               }
+               if (_meter_type & (MeterKrms | MeterK20 | MeterK14 | MeterK12)) {
                        _kmeter[i]->process(bufs.get_audio(i).data(), nframes);
                }
                if (_meter_type & (MeterIEC1DIN | MeterIEC1NOR)) {
@@ -289,7 +293,7 @@ PeakMeter::meter ()
        /* 0.01f ^= 100 Hz update rate */
        const float midi_meter_falloff = Config->get_meter_falloff() * 0.01f;
        /* kmeters: 24dB / 2 sec */
-       const float audio_meter_falloff = (_meter_type & (MeterK20 | MeterK14)) ? 0.12f : midi_meter_falloff;
+       const float audio_meter_falloff = (_meter_type & (MeterK20 | MeterK14 | MeterK12)) ? 0.12f : midi_meter_falloff;
 
        for (size_t n = 0; n < limit; ++n) {
 
@@ -346,6 +350,7 @@ PeakMeter::meter_level(uint32_t n, MeterType type) {
                case MeterKrms:
                case MeterK20:
                case MeterK14:
+               case MeterK12:
                        {
                                const uint32_t n_midi = current_meters.n_midi();
                                if (CHECKSIZE(_kmeter)) {
@@ -405,7 +410,7 @@ PeakMeter::set_type(MeterType t)
 
        _meter_type = t;
 
-       if (t & (MeterKrms | MeterK20 | MeterK14)) {
+       if (t & (MeterKrms | MeterK20 | MeterK14 | MeterK12)) {
                const size_t n_audio = current_meters.n_audio();
                for (size_t n = 0; n < n_audio; ++n) {
                        _kmeter[n]->reset();