From 449aab3c465bbbf66d221fac3d7ea559f1720357 Mon Sep 17 00:00:00 2001 From: Paul Davis Date: Mon, 2 Jun 2008 21:41:35 +0000 Subject: rollback to 3428, before the mysterious removal of libs/* at 3431/3432 git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf --- libs/ardour/ardour/audioregion.h | 204 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 204 insertions(+) create mode 100644 libs/ardour/ardour/audioregion.h (limited to 'libs/ardour/ardour/audioregion.h') diff --git a/libs/ardour/ardour/audioregion.h b/libs/ardour/ardour/audioregion.h new file mode 100644 index 0000000000..81b7ef7c57 --- /dev/null +++ b/libs/ardour/ardour/audioregion.h @@ -0,0 +1,204 @@ +/* + Copyright (C) 2000-2006 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_audio_region_h__ +#define __ardour_audio_region_h__ + +#include +#include + +#include +#include + +#include +#include +#include +#include +#include + +class XMLNode; + +namespace ARDOUR { + +class Route; +class Playlist; +class Session; +class Filter; +class AudioSource; + +class AudioRegion : public Region +{ + public: + static Change FadeInChanged; + static Change FadeOutChanged; + static Change FadeInActiveChanged; + static Change FadeOutActiveChanged; + static Change EnvelopeActiveChanged; + static Change ScaleAmplitudeChanged; + static Change EnvelopeChanged; + + ~AudioRegion(); + + bool speed_mismatch (float) const; + + boost::shared_ptr audio_source (uint32_t n=0) const; + + void set_scale_amplitude (gain_t); + gain_t scale_amplitude() const { return _scale_amplitude; } + + void normalize_to (float target_in_dB = 0.0f); + + bool envelope_active () const { return _flags & Region::EnvelopeActive; } + bool fade_in_active () const { return _flags & Region::FadeIn; } + bool fade_out_active () const { return _flags & Region::FadeOut; } + + boost::shared_ptr fade_in() { return _fade_in; } + boost::shared_ptr fade_out() { return _fade_out; } + boost::shared_ptr envelope() { return _envelope; } + + virtual nframes_t read_peaks (PeakData *buf, nframes_t npeaks, + nframes_t offset, nframes_t cnt, + uint32_t chan_n=0, double samples_per_unit= 1.0) const; + + /* Readable interface */ + + virtual nframes64_t read (Sample*, nframes64_t pos, nframes64_t cnt, int channel) const; + virtual nframes64_t readable_length() const { return length(); } + + virtual nframes_t read_at (Sample *buf, Sample *mixdown_buf, + float *gain_buf, nframes_t position, nframes_t cnt, + uint32_t chan_n = 0, + nframes_t read_frames = 0, + nframes_t skip_frames = 0) const; + + virtual nframes_t master_read_at (Sample *buf, Sample *mixdown_buf, + float *gain_buf, + nframes_t position, nframes_t cnt, uint32_t chan_n=0) const; + + virtual nframes_t read_raw_internal (Sample*, nframes_t, nframes_t) const; + + XMLNode& state (bool); + int set_state (const XMLNode&); + + static void set_default_fade (float steepness, nframes_t len); + bool fade_in_is_default () const; + bool fade_out_is_default () const; + + enum FadeShape { + Linear, + Fast, + Slow, + LogA, + LogB + }; + + void set_fade_in_active (bool yn); + void set_fade_in_shape (FadeShape); + void set_fade_in_length (nframes_t); + void set_fade_in (FadeShape, nframes_t); + + void set_fade_out_active (bool yn); + void set_fade_out_shape (FadeShape); + void set_fade_out_length (nframes_t); + void set_fade_out (FadeShape, nframes_t); + + void set_envelope_active (bool yn); + void set_default_envelope (); + + int separate_by_channel (ARDOUR::Session&, vector >&) const; + + /* export */ + + int exportme (ARDOUR::Session&, ARDOUR::ExportSpecification&); + + /* xfade/fade interactions */ + + void suspend_fade_in (); + void suspend_fade_out (); + void resume_fade_in (); + void resume_fade_out (); + + int get_transients (AnalysisFeatureList&, bool force_new = false); + + private: + friend class RegionFactory; + + AudioRegion (boost::shared_ptr, nframes_t start, nframes_t length); + AudioRegion (boost::shared_ptr, nframes_t start, nframes_t length, const string& name, layer_t = 0, Region::Flag flags = Region::DefaultFlags); + AudioRegion (const SourceList &, nframes_t start, nframes_t length, const string& name, layer_t = 0, Region::Flag flags = Region::DefaultFlags); + AudioRegion (boost::shared_ptr, nframes_t start, nframes_t length, const string& name, layer_t = 0, Region::Flag flags = Region::DefaultFlags); + AudioRegion (boost::shared_ptr, const XMLNode&); + AudioRegion (SourceList &, const XMLNode&); + + private: + void init (); + void set_default_fades (); + void set_default_fade_in (); + void set_default_fade_out (); + + void recompute_gain_at_end (); + void recompute_gain_at_start (); + + nframes_t _read_at (const SourceList&, nframes_t limit, + Sample *buf, Sample *mixdown_buffer, + float *gain_buffer, nframes_t position, nframes_t cnt, + uint32_t chan_n = 0, + nframes_t read_frames = 0, + nframes_t skip_frames = 0, + bool raw = false) const; + + void recompute_at_start (); + void recompute_at_end (); + + void envelope_changed (); + void fade_in_changed (); + void fade_out_changed (); + void source_offset_changed (); + void listen_to_my_curves (); + void listen_to_my_sources (); + + boost::shared_ptr _fade_in; + FadeShape _fade_in_shape; + boost::shared_ptr _fade_out; + FadeShape _fade_out_shape; + boost::shared_ptr _envelope; + gain_t _scale_amplitude; + uint32_t _fade_in_disabled; + uint32_t _fade_out_disabled; + + protected: + /* default constructor for derived (compound) types */ + + AudioRegion (Session& s, nframes_t, nframes_t, std::string name); + AudioRegion (boost::shared_ptr); + + int set_live_state (const XMLNode&, Change&, bool send); +}; + +} /* namespace ARDOUR */ + +/* access from C objects */ + +extern "C" { + int region_read_peaks_from_c (void *arg, uint32_t npeaks, uint32_t start, uint32_t length, intptr_t data, uint32_t n_chan, double samples_per_unit); + uint32_t region_length_from_c (void *arg); + uint32_t sourcefile_length_from_c (void *arg, double); +} + +#endif /* __ardour_audio_region_h__ */ -- cgit v1.2.3