diff options
Diffstat (limited to 'libs/ardour/audioregion.cc')
| -rw-r--r-- | libs/ardour/audioregion.cc | 266 |
1 files changed, 133 insertions, 133 deletions
diff --git a/libs/ardour/audioregion.cc b/libs/ardour/audioregion.cc index a3444c0b23..38fede7c51 100644 --- a/libs/ardour/audioregion.cc +++ b/libs/ardour/audioregion.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 2000-2006 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 @@ -170,7 +170,7 @@ AudioRegion::AudioRegion (boost::shared_ptr<const AudioRegion> other, nframes_t _scale_amplitude = other->_scale_amplitude; assert(_type == DataType::AUDIO); - + listen_to_my_curves (); connect_to_analysis_changed (); @@ -321,7 +321,7 @@ ARDOUR::nframes_t AudioRegion::read_peaks (PeakData *buf, nframes_t npeaks, nframes_t offset, nframes_t cnt, uint32_t chan_n, double samples_per_unit) const { if (chan_n >= _sources.size()) { - return 0; + return 0; } if (audio_source(chan_n)->read_peaks (buf, npeaks, offset, cnt, samples_per_unit)) { @@ -366,16 +366,16 @@ AudioRegion::master_read_at (Sample *buf, Sample *mixdown_buffer, float *gain_bu { /* do not read gain/scaling/fades and do not count this disk i/o in statistics */ - return _read_at (_master_sources, _master_sources.front()->length(_master_sources.front()->timeline_position()), + return _read_at (_master_sources, _master_sources.front()->length(_master_sources.front()->timeline_position()), buf, mixdown_buffer, gain_buffer, position, cnt, chan_n, 0, 0, ReadOps (0)); } nframes_t AudioRegion::_read_at (const SourceList& /*srcs*/, nframes_t limit, Sample *buf, Sample *mixdown_buffer, float *gain_buffer, - sframes_t position, nframes_t cnt, - uint32_t chan_n, - nframes_t /*read_frames*/, + sframes_t position, nframes_t cnt, + uint32_t chan_n, + nframes_t /*read_frames*/, nframes_t /*skip_frames*/, ReadOps rops) const { @@ -424,13 +424,13 @@ AudioRegion::_read_at (const SourceList& /*srcs*/, nframes_t limit, if (src->read (mixdown_buffer, _start + internal_offset, to_read) != to_read) { return 0; /* "read nothing" */ } - + if (rops & ReadOpsCount) { _read_data_count += src->read_data_count(); } } else { - + /* track is N-channel, this region has less channels; silence the ones we don't have. */ @@ -439,53 +439,53 @@ AudioRegion::_read_at (const SourceList& /*srcs*/, nframes_t limit, } if (rops & ReadOpsFades) { - + /* fade in */ if ((_flags & FadeIn) && _session.config.get_use_region_fades()) { - + nframes_t fade_in_length = (nframes_t) _fade_in->back()->when; - + /* see if this read is within the fade in */ - + if (internal_offset < fade_in_length) { - + nframes_t fi_limit; - + fi_limit = min (to_read, fade_in_length - internal_offset); - + _fade_in->curve().get_vector (internal_offset, internal_offset+fi_limit, gain_buffer, fi_limit); - + for (nframes_t n = 0; n < fi_limit; ++n) { mixdown_buffer[n] *= gain_buffer[n]; } } } - + /* fade out */ - + if ((_flags & FadeOut) && _session.config.get_use_region_fades()) { /* see if some part of this read is within the fade out */ - + /* ................. >| REGION limit - + { } FADE fade_out_length - ^ + ^ limit - fade_out_length |--------------| ^internal_offset ^internal_offset + to_read - + we need the intersection of [internal_offset,internal_offset+to_read] with [limit - fade_out_length, limit] - + */ - + nframes_t fade_out_length = (nframes_t) _fade_out->back()->when; nframes_t fade_interval_start = max(internal_offset, limit-fade_out_length); nframes_t fade_interval_end = min(internal_offset + to_read, limit); @@ -496,22 +496,22 @@ AudioRegion::_read_at (const SourceList& /*srcs*/, nframes_t limit, nframes_t fo_limit = fade_interval_end - fade_interval_start; nframes_t curve_offset = fade_interval_start - (limit-fade_out_length); nframes_t fade_offset = fade_interval_start - internal_offset; - + _fade_out->curve().get_vector (curve_offset, curve_offset+fo_limit, gain_buffer, fo_limit); for (nframes_t n = 0, m = fade_offset; n < fo_limit; ++n, ++m) { mixdown_buffer[m] *= gain_buffer[n]; } - } - + } + } } - + /* Regular gain curves and scaling */ - + if ((rops & ReadOpsOwnAutomation) && envelope_active()) { _envelope->curve().get_vector (internal_offset, internal_offset + to_read, gain_buffer, to_read); - + if ((rops & ReadOpsOwnScaling) && _scale_amplitude != 1.0f) { for (nframes_t n = 0; n < to_read; ++n) { mixdown_buffer[n] *= gain_buffer[n] * _scale_amplitude; @@ -523,29 +523,29 @@ AudioRegion::_read_at (const SourceList& /*srcs*/, nframes_t limit, } } else if ((rops & ReadOpsOwnScaling) && _scale_amplitude != 1.0f) { - // XXX this should be using what in 2.0 would have been: + // XXX this should be using what in 2.0 would have been: // Session::apply_gain_to_buffer (mixdown_buffer, to_read, _scale_amplitude); for (nframes_t n = 0; n < to_read; ++n) { mixdown_buffer[n] *= _scale_amplitude; } } - + if (!opaque()) { - + /* gack. the things we do for users. */ - + buf += buf_offset; - + for (nframes_t n = 0; n < to_read; ++n) { buf[n] += mixdown_buffer[n]; } - } + } return to_read; } - + XMLNode& AudioRegion::state (bool full) { @@ -554,7 +554,7 @@ AudioRegion::state (bool full) char buf[64]; char buf2[64]; LocaleGuard lg (X_("POSIX")); - + node.add_property ("flags", enum_2_string (_flags)); snprintf (buf, sizeof(buf), "%.12g", _scale_amplitude); @@ -578,9 +578,9 @@ AudioRegion::state (bool full) node.add_property ("channels", buf); if (full) { - + child = node.add_child (X_("FadeIn")); - + if ((_flags & DefaultFadeIn)) { child->add_property (X_("default"), X_("yes")); } else { @@ -588,23 +588,23 @@ AudioRegion::state (bool full) } child->add_property (X_("active"), _fade_in_disabled ? X_("no") : X_("yes")); - + child = node.add_child (X_("FadeOut")); - + if ((_flags & DefaultFadeOut)) { child->add_property (X_("default"), X_("yes")); } else { child->add_child_nocopy (_fade_out->get_state ()); } - + child->add_property (X_("active"), _fade_out_disabled ? X_("no") : X_("yes")); } - + child = node.add_child ("Envelope"); if (full) { bool default_env = false; - + // If there are only two points, the points are in the start of the region and the end of the region // so, if they are both at 1.0f, that means the default region. @@ -614,7 +614,7 @@ AudioRegion::state (bool full) if (_envelope->front()->when == 0 && _envelope->back()->when == _length) { default_env = true; } - } + } if (default_env) { child->add_property ("default", "yes"); @@ -677,16 +677,16 @@ AudioRegion::set_live_state (const XMLNode& node, Change& what_changed, bool sen } else { _scale_amplitude = 1.0; } - + /* Now find envelope description and other misc child items */ - + for (XMLNodeConstIterator niter = nlist.begin(); niter != nlist.end(); ++niter) { - + XMLNode *child; XMLProperty *prop; - + child = (*niter); - + if (child->name() == "Envelope") { _envelope->clear (); @@ -699,9 +699,9 @@ AudioRegion::set_live_state (const XMLNode& node, Change& what_changed, bool sen _envelope->truncate_end (_length); } else if (child->name() == "FadeIn") { - + _fade_in->clear (); - + if ((prop = child->property ("default")) != 0 || (prop = child->property ("steepness")) != 0) { set_default_fade_in (); } else { @@ -720,7 +720,7 @@ AudioRegion::set_live_state (const XMLNode& node, Change& what_changed, bool sen } } else if (child->name() == "FadeOut") { - + _fade_out->clear (); if ((prop = child->property ("default")) != 0 || (prop = child->property ("steepness")) != 0) { @@ -729,7 +729,7 @@ AudioRegion::set_live_state (const XMLNode& node, Change& what_changed, bool sen XMLNode* grandchild = child->child ("AutomationList"); if (grandchild) { _fade_out->set_state (*grandchild); - } + } } if ((prop = child->property ("active")) != 0) { @@ -740,7 +740,7 @@ AudioRegion::set_live_state (const XMLNode& node, Change& what_changed, bool sen } } - } + } } if (send) { @@ -997,10 +997,10 @@ AudioRegion::set_default_envelope () void AudioRegion::recompute_at_end () { - /* our length has changed. recompute a new final point by interpolating + /* our length has changed. recompute a new final point by interpolating based on the the existing curve. */ - + _envelope->freeze (); _envelope->truncate_end (_length); _envelope->set_max_xval (_length); @@ -1015,7 +1015,7 @@ AudioRegion::recompute_at_end () _fade_out->extend_to (_length); send_change (FadeOutChanged); } -} +} void AudioRegion::recompute_at_start () @@ -1070,7 +1070,7 @@ AudioRegion::separate_by_channel (Session& /*session*/, vector<boost::shared_ptr Flag f = Flag (_flags & ~WholeFile); v.push_back(RegionFactory::create (srcs, _start, _length, new_name, _layer, f)); - + ++n; } @@ -1087,65 +1087,65 @@ int AudioRegion::exportme (Session& /*session*/, ARDOUR::ExportSpecification& /*spec*/) { // TODO EXPORT -// const nframes_t blocksize = 4096; -// nframes_t to_read; -// int status = -1; -// -// spec.channels = _sources.size(); -// -// if (spec.prepare (blocksize, session.frame_rate())) { -// goto out; -// } -// -// spec.pos = 0; -// spec.total_frames = _length; -// -// while (spec.pos < _length && !spec.stop) { -// -// -// /* step 1: interleave */ -// -// to_read = min (_length - spec.pos, blocksize); -// -// if (spec.channels == 1) { -// -// if (read_raw_internal (spec.dataF, _start + spec.pos, to_read) != to_read) { -// goto out; -// } -// -// } else { -// -// Sample buf[blocksize]; -// -// for (uint32_t chan = 0; chan < spec.channels; ++chan) { -// -// if (audio_source(chan)->read (buf, _start + spec.pos, to_read) != to_read) { -// goto out; -// } -// -// for (nframes_t x = 0; x < to_read; ++x) { -// spec.dataF[chan+(x*spec.channels)] = buf[x]; -// } -// } -// } -// -// if (spec.process (to_read)) { -// goto out; -// } -// -// spec.pos += to_read; -// spec.progress = (double) spec.pos /_length; -// -// } -// -// status = 0; -// -// out: -// spec.running = false; -// spec.status = status; -// spec.clear(); -// -// return status; +// const nframes_t blocksize = 4096; +// nframes_t to_read; +// int status = -1; +// +// spec.channels = _sources.size(); +// +// if (spec.prepare (blocksize, session.frame_rate())) { +// goto out; +// } +// +// spec.pos = 0; +// spec.total_frames = _length; +// +// while (spec.pos < _length && !spec.stop) { +// +// +// /* step 1: interleave */ +// +// to_read = min (_length - spec.pos, blocksize); +// +// if (spec.channels == 1) { +// +// if (read_raw_internal (spec.dataF, _start + spec.pos, to_read) != to_read) { +// goto out; +// } +// +// } else { +// +// Sample buf[blocksize]; +// +// for (uint32_t chan = 0; chan < spec.channels; ++chan) { +// +// if (audio_source(chan)->read (buf, _start + spec.pos, to_read) != to_read) { +// goto out; +// } +// +// for (nframes_t x = 0; x < to_read; ++x) { +// spec.dataF[chan+(x*spec.channels)] = buf[x]; +// } +// } +// } +// +// if (spec.process (to_read)) { +// goto out; +// } +// +// spec.pos += to_read; +// spec.progress = (double) spec.pos /_length; +// +// } +// +// status = 0; +// +// out: +// spec.running = false; +// spec.status = status; +// spec.clear(); +// +// return status; return 0; } @@ -1157,7 +1157,7 @@ AudioRegion::set_scale_amplitude (gain_t g) _scale_amplitude = g; /* tell the diskstream we're in */ - + if (pl) { pl->Modified(); } @@ -1203,7 +1203,7 @@ AudioRegion::normalize_to (float target_dB) if (read_raw_internal (buf, fpos, to_read, 0) != to_read) { return; } - + maxamp = compute_peak (buf, to_read, maxamp); } @@ -1321,7 +1321,7 @@ AudioRegion::source_offset_changed () if (afs && afs->destructive()) { // set_start (source()->natural_position(), this); set_position (source()->natural_position(), this); - } + } } boost::shared_ptr<AudioSource> @@ -1346,14 +1346,14 @@ AudioRegion::get_transients (AnalysisFeatureList& results, bool force_new) } SourceList::iterator s; - + for (s = _sources.begin() ; s != _sources.end(); ++s) { if (!(*s)->has_been_analysed()) { cerr << "For " << name() << " source " << (*s)->name() << " has not been analyzed\n"; break; } } - + if (s == _sources.end()) { /* all sources are analyzed, merge data from each one */ @@ -1368,14 +1368,14 @@ AudioRegion::get_transients (AnalysisFeatureList& results, bool force_new) AnalysisFeatureList::iterator high = upper_bound ((*s)->transients.begin(), (*s)->transients.end(), _start + _length); - + /* and add them */ results.insert (results.end(), low, high); } TransientDetector::cleanup_transients (results, pl->session().frame_rate(), 3.0); - + /* translate all transients to current position */ for (AnalysisFeatureList::iterator x = results.begin(); x != results.end(); ++x) { @@ -1418,19 +1418,19 @@ then quit ardour and restart.")); } /* translate all transients to give absolute position */ - + for (AnalysisFeatureList::iterator i = these_results.begin(); i != these_results.end(); ++i) { (*i) += _position; } /* merge */ - + _transients.insert (_transients.end(), these_results.begin(), these_results.end()); } - + if (!results.empty()) { if (existing_results) { - + /* merge our transients into the existing ones, then clean up those. */ @@ -1467,7 +1467,7 @@ AudioRegion::find_silence (Sample threshold, nframes_t min_length) const nframes_t const block_size = 64 * 1024; Sample loudest[block_size]; Sample buf[block_size]; - + nframes_t pos = _start; nframes_t const end = _start + _length - 1; @@ -1519,7 +1519,7 @@ AudioRegion::find_silence (Sample threshold, nframes_t min_length) const 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) + 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) { return ((AudioRegion *) arg)->read_peaks ((PeakData *) data, (nframes_t) npeaks, (nframes_t) start, (nframes_t) cnt, n_chan,samples_per_unit); } |