diff options
author | David Robillard <d@drobilla.net> | 2006-08-12 08:20:24 +0000 |
---|---|---|
committer | David Robillard <d@drobilla.net> | 2006-08-12 08:20:24 +0000 |
commit | 30ab1fd61569f9d7fb7410d483fa68cbf9865c37 (patch) | |
tree | 60cf9b5228a2728cda6608d517528066253d1a17 /libs/ardour/ardour/meter.h | |
parent | cbdf686e391bc2e7b93f37a5d3fa9197cb178078 (diff) |
Towards MIDI:
- Converted vector<Sample*> to BufferList and numerous counts from int to ChanCount (and related changes)
- Added fancy type-generic iterators to BufferList, PortIterator (see IO::collect_input for a good example of the idea - the same code will work to read all input (of various types in a single IO, eg instruments) without modification no matter how many types we add)
- Fixed comparison operator bugs with ChanCount (screwed up metering among other things)
- Moved peak metering into it's own object, and moved most of the pan related code out of IO to panner (still a touch more to be done here for MIDI playback)
Not directly MIDI related fixes for problems in trunk:
- Fixed varispeed gain/pan automation to work properly (was reading the wrong range of automation data, probably causing nasty clicks?)
- Fixed crash on varispeed looping (possibly only a 64-bit problem). It still doesn't work, but at least it doesn't die
Quite a few things broken, and the new classes are pretty filthy still, but I think the direction is a lot better than all my previous plans...
git-svn-id: svn://localhost/ardour2/branches/midi@795 d708f5d6-7413-0410-9779-e7cbd77b26cf
Diffstat (limited to 'libs/ardour/ardour/meter.h')
-rw-r--r-- | libs/ardour/ardour/meter.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/libs/ardour/ardour/meter.h b/libs/ardour/ardour/meter.h new file mode 100644 index 0000000000..f18a2e6de9 --- /dev/null +++ b/libs/ardour/ardour/meter.h @@ -0,0 +1,66 @@ +/* + 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. +*/ + +#ifndef __ardour_meter_h__ +#define __ardour_meter_h__ + +#include <vector> +#include <ardour/types.h> +#include <pbd/fastlog.h> + +namespace ARDOUR { + +class BufferSet; +class ChanCount; +class Session; + + +/** Meters peaks on the input and stores them for access. + */ +class PeakMeter { +public: + PeakMeter(Session& s) : _session(s) {} + + void setup (const ChanCount& in); + void reset (); + + /** Compute peaks */ + void run (BufferSet& bufs, jack_nframes_t nframes, jack_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(); + } + } + +private: + + friend class IO; + void meter(); + + Session& _session; + std::vector<float> _peak_power; + std::vector<float> _visible_peak_power; +}; + + +} // namespace ARDOUR + +#endif // __ardour_meter_h__ |