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-rw-r--r--libs/ardour/audioregion.cc322
1 files changed, 63 insertions, 259 deletions
diff --git a/libs/ardour/audioregion.cc b/libs/ardour/audioregion.cc
index 20d1dbfbd6..6b810c04ec 100644
--- a/libs/ardour/audioregion.cc
+++ b/libs/ardour/audioregion.cc
@@ -1,5 +1,5 @@
/*
- Copyright (C) 2000-2001 Paul Davis
+ 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
@@ -57,25 +57,20 @@ Change AudioRegion::ScaleAmplitudeChanged = ARDOUR::new_change();
Change AudioRegion::EnvelopeChanged = ARDOUR::new_change();
AudioRegionState::AudioRegionState (string why)
- : RegionState (why),
- _fade_in (0.0, 2.0, 1.0, false),
- _fade_out (0.0, 2.0, 1.0, false),
- _envelope (0.0, 2.0, 1.0, false)
+ : RegionState (why)
+ , _fade_in (0.0, 2.0, 1.0, false)
+ , _fade_out (0.0, 2.0, 1.0, false)
+ , _envelope (0.0, 2.0, 1.0, false)
{
}
+/** Basic AudioRegion constructor (one channel) */
AudioRegion::AudioRegion (AudioSource& src, jack_nframes_t start, jack_nframes_t length, bool announce)
- : Region (start, length, PBD::basename_nosuffix(src.name()), 0, Region::Flag(Region::DefaultFlags|Region::External)),
- _fade_in (0.0, 2.0, 1.0, false),
- _fade_out (0.0, 2.0, 1.0, false),
- _envelope (0.0, 2.0, 1.0, false)
+ : Region (src, start, length, PBD::basename_nosuffix(src.name()), 0, Region::Flag(Region::DefaultFlags|Region::External))
+ , _fade_in (0.0, 2.0, 1.0, false)
+ , _fade_out (0.0, 2.0, 1.0, false)
+ , _envelope (0.0, 2.0, 1.0, false)
{
- /* basic AudioRegion constructor */
-
- sources.push_back (&src);
- master_sources.push_back (&src);
- src.GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
-
_scale_amplitude = 1.0;
set_default_fades ();
@@ -90,18 +85,13 @@ AudioRegion::AudioRegion (AudioSource& src, jack_nframes_t start, jack_nframes_t
}
}
+/* Basic AudioRegion constructor (one channel) */
AudioRegion::AudioRegion (AudioSource& src, jack_nframes_t start, jack_nframes_t length, const string& name, layer_t layer, Flag flags, bool announce)
- : Region (start, length, name, layer, flags),
- _fade_in (0.0, 2.0, 1.0, false),
- _fade_out (0.0, 2.0, 1.0, false),
- _envelope (0.0, 2.0, 1.0, false)
+ : Region (src, start, length, name, layer, flags)
+ , _fade_in (0.0, 2.0, 1.0, false)
+ , _fade_out (0.0, 2.0, 1.0, false)
+ , _envelope (0.0, 2.0, 1.0, false)
{
- /* basic AudioRegion constructor */
-
- sources.push_back (&src);
- master_sources.push_back (&src);
- src.GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
-
_scale_amplitude = 1.0;
set_default_fades ();
@@ -115,20 +105,13 @@ AudioRegion::AudioRegion (AudioSource& src, jack_nframes_t start, jack_nframes_t
}
}
+/* Basic AudioRegion constructor (many channels) */
AudioRegion::AudioRegion (SourceList& srcs, jack_nframes_t start, jack_nframes_t length, const string& name, layer_t layer, Flag flags, bool announce)
- : Region (start, length, name, layer, flags),
- _fade_in (0.0, 2.0, 1.0, false),
- _fade_out (0.0, 2.0, 1.0, false),
- _envelope (0.0, 2.0, 1.0, false)
+ : Region (srcs, start, length, name, layer, flags)
+ , _fade_in (0.0, 2.0, 1.0, false)
+ , _fade_out (0.0, 2.0, 1.0, false)
+ , _envelope (0.0, 2.0, 1.0, false)
{
- /* basic AudioRegion constructor */
-
- for (SourceList::iterator i=srcs.begin(); i != srcs.end(); ++i) {
- sources.push_back (*i);
- master_sources.push_back (*i);
- (*i)->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
- }
-
_scale_amplitude = 1.0;
set_default_fades ();
@@ -143,29 +126,13 @@ AudioRegion::AudioRegion (SourceList& srcs, jack_nframes_t start, jack_nframes_t
}
+/** Create a new AudioRegion, that is part of an existing one */
AudioRegion::AudioRegion (const AudioRegion& other, jack_nframes_t offset, jack_nframes_t length, const string& name, layer_t layer, Flag flags, bool announce)
- : Region (other, offset, length, name, layer, flags),
- _fade_in (other._fade_in),
- _fade_out (other._fade_out),
- _envelope (other._envelope, (double) offset, (double) offset + length)
+ : Region (other, offset, length, name, layer, flags)
+ , _fade_in (other._fade_in)
+ , _fade_out (other._fade_out)
+ , _envelope (other._envelope, (double) offset, (double) offset + length)
{
- /* create a new AudioRegion, that is part of an existing one */
-
- set<AudioSource*> unique_srcs;
-
- for (SourceList::const_iterator i= other.sources.begin(); i != other.sources.end(); ++i) {
- sources.push_back (*i);
- (*i)->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
- unique_srcs.insert (*i);
- }
-
- for (SourceList::const_iterator i = other.master_sources.begin(); i != other.master_sources.end(); ++i) {
- if (unique_srcs.find (*i) == unique_srcs.end()) {
- (*i)->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
- }
- master_sources.push_back (*i);
- }
-
/* return to default fades if the existing ones are too long */
_fade_in_disabled = 0;
_fade_out_disabled = 0;
@@ -203,28 +170,11 @@ AudioRegion::AudioRegion (const AudioRegion& other, jack_nframes_t offset, jack_
}
AudioRegion::AudioRegion (const AudioRegion &other)
- : Region (other),
- _fade_in (other._fade_in),
- _fade_out (other._fade_out),
- _envelope (other._envelope)
+ : Region (other)
+ , _fade_in (other._fade_in)
+ , _fade_out (other._fade_out)
+ , _envelope (other._envelope)
{
- /* Pure copy constructor */
-
- set<AudioSource*> unique_srcs;
-
- for (SourceList::const_iterator i = other.sources.begin(); i != other.sources.end(); ++i) {
- sources.push_back (*i);
- (*i)->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
- unique_srcs.insert (*i);
- }
-
- for (SourceList::const_iterator i = other.master_sources.begin(); i != other.master_sources.end(); ++i) {
- master_sources.push_back (*i);
- if (unique_srcs.find (*i) == unique_srcs.end()) {
- (*i)->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
- }
- }
-
_scale_amplitude = other._scale_amplitude;
_envelope = other._envelope;
@@ -239,15 +189,11 @@ AudioRegion::AudioRegion (const AudioRegion &other)
}
AudioRegion::AudioRegion (AudioSource& src, const XMLNode& node)
- : Region (node),
- _fade_in (0.0, 2.0, 1.0, false),
- _fade_out (0.0, 2.0, 1.0, false),
- _envelope (0.0, 2.0, 1.0, false)
+ : Region (src, node)
+ , _fade_in (0.0, 2.0, 1.0, false)
+ , _fade_out (0.0, 2.0, 1.0, false)
+ , _envelope (0.0, 2.0, 1.0, false)
{
- sources.push_back (&src);
- master_sources.push_back (&src);
- src.GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
-
set_default_fades ();
if (set_state (node)) {
@@ -262,26 +208,11 @@ AudioRegion::AudioRegion (AudioSource& src, const XMLNode& node)
}
AudioRegion::AudioRegion (SourceList& srcs, const XMLNode& node)
- : Region (node),
+ : Region (srcs, node),
_fade_in (0.0, 2.0, 1.0, false),
_fade_out (0.0, 2.0, 1.0, false),
_envelope (0.0, 2.0, 1.0, false)
{
- set<AudioSource*> unique_srcs;
-
- for (SourceList::iterator i=srcs.begin(); i != srcs.end(); ++i) {
- sources.push_back (*i);
- (*i)->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
- unique_srcs.insert (*i);
- }
-
- for (SourceList::iterator i = srcs.begin(); i != srcs.end(); ++i) {
- master_sources.push_back (*i);
- if (unique_srcs.find (*i) == unique_srcs.end()) {
- (*i)->GoingAway.connect (mem_fun (*this, &AudioRegion::source_deleted));
- }
- }
-
set_default_fades ();
_scale_amplitude = 1.0;
@@ -383,48 +314,6 @@ AudioRegion::get_memento() const
return sigc::bind (mem_fun (*(const_cast<AudioRegion *> (this)), &StateManager::use_state), _current_state_id);
}
-bool
-AudioRegion::verify_length (jack_nframes_t len)
-{
- for (uint32_t n=0; n < sources.size(); ++n) {
- if (_start > sources[n]->length() - len) {
- return false;
- }
- }
- return true;
-}
-
-bool
-AudioRegion::verify_start_and_length (jack_nframes_t new_start, jack_nframes_t new_length)
-{
- for (uint32_t n=0; n < sources.size(); ++n) {
- if (new_length > sources[n]->length() - new_start) {
- return false;
- }
- }
- return true;
-}
-bool
-AudioRegion::verify_start (jack_nframes_t pos)
-{
- for (uint32_t n=0; n < sources.size(); ++n) {
- if (pos > sources[n]->length() - _length) {
- return false;
- }
- }
- return true;
-}
-
-bool
-AudioRegion::verify_start_mutable (jack_nframes_t& new_start)
-{
- for (uint32_t n=0; n < sources.size(); ++n) {
- if (new_start > sources[n]->length() - _length) {
- new_start = sources[n]->length() - _length;
- }
- }
- return true;
-}
void
AudioRegion::set_envelope_active (bool yn)
{
@@ -448,11 +337,11 @@ AudioRegion::set_envelope_active (bool yn)
jack_nframes_t
AudioRegion::read_peaks (PeakData *buf, jack_nframes_t npeaks, jack_nframes_t offset, jack_nframes_t cnt, uint32_t chan_n, double samples_per_unit) const
{
- if (chan_n >= sources.size()) {
+ if (chan_n >= _sources.size()) {
return 0;
}
- if (sources[chan_n]->read_peaks (buf, npeaks, offset, cnt, samples_per_unit)) {
+ if (audio_source(chan_n).read_peaks (buf, npeaks, offset, cnt, samples_per_unit)) {
return 0;
} else {
if (_scale_amplitude != 1.0) {
@@ -466,22 +355,22 @@ AudioRegion::read_peaks (PeakData *buf, jack_nframes_t npeaks, jack_nframes_t of
}
jack_nframes_t
-AudioRegion::read_at (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, char * workbuf, jack_nframes_t position,
+AudioRegion::read_at (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, jack_nframes_t position,
jack_nframes_t cnt,
uint32_t chan_n, jack_nframes_t read_frames, jack_nframes_t skip_frames) const
{
- return _read_at (sources, buf, mixdown_buffer, gain_buffer, workbuf, position, cnt, chan_n, read_frames, skip_frames);
+ return _read_at (_sources, buf, mixdown_buffer, gain_buffer, position, cnt, chan_n, read_frames, skip_frames);
}
jack_nframes_t
-AudioRegion::master_read_at (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, char * workbuf, jack_nframes_t position,
+AudioRegion::master_read_at (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, jack_nframes_t position,
jack_nframes_t cnt, uint32_t chan_n) const
{
- return _read_at (master_sources, buf, mixdown_buffer, gain_buffer, workbuf, position, cnt, chan_n, 0, 0);
+ return _read_at (_master_sources, buf, mixdown_buffer, gain_buffer, position, cnt, chan_n, 0, 0);
}
jack_nframes_t
-AudioRegion::_read_at (const SourceList& srcs, Sample *buf, Sample *mixdown_buffer, float *gain_buffer, char * workbuf,
+AudioRegion::_read_at (const SourceList& srcs, Sample *buf, Sample *mixdown_buffer, float *gain_buffer,
jack_nframes_t position, jack_nframes_t cnt,
uint32_t chan_n, jack_nframes_t read_frames, jack_nframes_t skip_frames) const
{
@@ -491,7 +380,7 @@ AudioRegion::_read_at (const SourceList& srcs, Sample *buf, Sample *mixdown_buff
/* precondition: caller has verified that we cover the desired section */
- if (chan_n >= sources.size()) {
+ if (chan_n >= _sources.size()) {
return 0; /* read nothing */
}
@@ -526,11 +415,12 @@ AudioRegion::_read_at (const SourceList& srcs, Sample *buf, Sample *mixdown_buff
_read_data_count = 0;
- if (srcs[chan_n]->read (mixdown_buffer, _start + internal_offset, to_read, workbuf) != to_read) {
+ AudioSource& src = audio_source(chan_n);
+ if (src.read (mixdown_buffer, _start + internal_offset, to_read) != to_read) {
return 0; /* "read nothing" */
}
- _read_data_count += srcs[chan_n]->read_data_count();
+ _read_data_count += src.read_data_count();
/* fade in */
@@ -647,13 +537,13 @@ AudioRegion::state (bool full)
snprintf (buf, sizeof(buf), "%.12g", _scale_amplitude);
node.add_property ("scale-gain", buf);
- for (uint32_t n=0; n < sources.size(); ++n) {
+ for (uint32_t n=0; n < _sources.size(); ++n) {
snprintf (buf2, sizeof(buf2), "source-%d", n);
- sources[n]->id().print (buf);
+ _sources[n]->id().print (buf);
node.add_property (buf2, buf);
}
- snprintf (buf, sizeof (buf), "%u", (uint32_t) sources.size());
+ snprintf (buf, sizeof (buf), "%u", (uint32_t) _sources.size());
node.add_property ("channels", buf);
if (full) {
@@ -1058,7 +948,7 @@ AudioRegion::separate_by_channel (Session& session, vector<AudioRegion*>& v) con
SourceList srcs;
string new_name;
- for (SourceList::const_iterator i = master_sources.begin(); i != master_sources.end(); ++i) {
+ for (SourceList::const_iterator i = _master_sources.begin(); i != _master_sources.end(); ++i) {
srcs.clear ();
srcs.push_back (*i);
@@ -1077,86 +967,6 @@ AudioRegion::separate_by_channel (Session& session, vector<AudioRegion*>& v) con
return 0;
}
-void
-AudioRegion::source_deleted (Source* ignored)
-{
- delete this;
-}
-
-void
-AudioRegion::lock_sources ()
-{
- SourceList::iterator i;
- set<AudioSource*> unique_srcs;
-
- for (i = sources.begin(); i != sources.end(); ++i) {
- unique_srcs.insert (*i);
- (*i)->use ();
- }
-
- for (i = master_sources.begin(); i != master_sources.end(); ++i) {
- if (unique_srcs.find (*i) == unique_srcs.end()) {
- (*i)->use ();
- }
- }
-}
-
-void
-AudioRegion::unlock_sources ()
-{
- SourceList::iterator i;
- set<AudioSource*> unique_srcs;
-
- for (i = sources.begin(); i != sources.end(); ++i) {
- unique_srcs.insert (*i);
- (*i)->release ();
- }
-
- for (i = master_sources.begin(); i != master_sources.end(); ++i) {
- if (unique_srcs.find (*i) == unique_srcs.end()) {
- (*i)->release ();
- }
- }
-}
-
-vector<string>
-AudioRegion::master_source_names ()
-{
- SourceList::iterator i;
-
- vector<string> names;
- for (i = master_sources.begin(); i != master_sources.end(); ++i) {
- names.push_back((*i)->name());
- }
-
- return names;
-}
-
-bool
-AudioRegion::source_equivalent (const Region& o) const
-{
- const AudioRegion* other = dynamic_cast<const AudioRegion*>(&o);
- if (!other)
- return false;
-
- SourceList::const_iterator i;
- SourceList::const_iterator io;
-
- for (i = sources.begin(), io = other->sources.begin(); i != sources.end() && io != other->sources.end(); ++i, ++io) {
- if ((*i)->id() != (*io)->id()) {
- return false;
- }
- }
-
- for (i = master_sources.begin(), io = other->master_sources.begin(); i != master_sources.end() && io != other->master_sources.end(); ++i, ++io) {
- if ((*i)->id() != (*io)->id()) {
- return false;
- }
- }
-
- return true;
-}
-
int
AudioRegion::apply (AudioFilter& filter)
{
@@ -1170,7 +980,7 @@ AudioRegion::exportme (Session& session, AudioExportSpecification& spec)
jack_nframes_t to_read;
int status = -1;
- spec.channels = sources.size();
+ spec.channels = _sources.size();
if (spec.prepare (blocksize, session.frame_rate())) {
goto out;
@@ -1188,7 +998,7 @@ AudioRegion::exportme (Session& session, AudioExportSpecification& spec)
if (spec.channels == 1) {
- if (sources.front()->read (spec.dataF, _start + spec.pos, to_read, 0) != to_read) {
+ if (audio_source().read (spec.dataF, _start + spec.pos, to_read) != to_read) {
goto out;
}
@@ -1198,7 +1008,7 @@ AudioRegion::exportme (Session& session, AudioExportSpecification& spec)
for (uint32_t chan = 0; chan < spec.channels; ++chan) {
- if (sources[chan]->read (buf, _start + spec.pos, to_read, 0) != to_read) {
+ if (audio_source(chan).read (buf, _start + spec.pos, to_read) != to_read) {
goto out;
}
@@ -1227,18 +1037,6 @@ AudioRegion::exportme (Session& session, AudioExportSpecification& spec)
return status;
}
-Region*
-AudioRegion::get_parent()
-{
- Region* r = 0;
-
- if (_playlist) {
- r = _playlist->session().find_whole_file_parent (*this);
- }
-
- return r;
-}
-
void
AudioRegion::set_scale_amplitude (gain_t g)
{
@@ -1260,7 +1058,6 @@ AudioRegion::normalize_to (float target_dB)
{
const jack_nframes_t blocksize = 64 * 1024;
Sample buf[blocksize];
- char workbuf[blocksize * 4];
jack_nframes_t fpos;
jack_nframes_t fend;
jack_nframes_t to_read;
@@ -1289,7 +1086,7 @@ AudioRegion::normalize_to (float target_dB)
/* read it in */
- if (source (n).read (buf, fpos, to_read, workbuf) != to_read) {
+ if (audio_source (n).read (buf, fpos, to_read) != to_read) {
return;
}
@@ -1372,16 +1169,23 @@ AudioRegion::resume_fade_out ()
bool
AudioRegion::speed_mismatch (float sr) const
{
- if (sources.empty()) {
+ if (_sources.empty()) {
/* impossible, but ... */
return false;
}
- float fsr = sources.front()->sample_rate();
+ float fsr = audio_source().sample_rate();
return fsr != sr;
}
+AudioSource&
+AudioRegion::audio_source (uint32_t n) const
+{
+ // Guaranteed to succeed (use a static cast?)
+ return dynamic_cast<AudioSource&>(source(n));
+}
+
extern "C" {
int region_read_peaks_from_c (void *arg, uint32_t npeaks, uint32_t start, uint32_t cnt, intptr_t data, uint32_t n_chan, double samples_per_unit)
@@ -1397,7 +1201,7 @@ uint32_t region_length_from_c (void *arg)
uint32_t sourcefile_length_from_c (void *arg, double zoom_factor)
{
- return ( (AudioRegion *) arg)->source().available_peaks (zoom_factor) ;
+ return ( (AudioRegion *) arg)->audio_source().available_peaks (zoom_factor) ;
}
} /* extern "C" */
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-10 11:42:26 +0000