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/auditioner.cc | 233 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 233 insertions(+) create mode 100644 libs/ardour/auditioner.cc (limited to 'libs/ardour/auditioner.cc') diff --git a/libs/ardour/auditioner.cc b/libs/ardour/auditioner.cc new file mode 100644 index 0000000000..d6f63c2f9d --- /dev/null +++ b/libs/ardour/auditioner.cc @@ -0,0 +1,233 @@ +/* + Copyright (C) 2001 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. + +*/ + +#include + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +using namespace std; +using namespace ARDOUR; +using namespace PBD; + +#include "i18n.h" + +Auditioner::Auditioner (Session& s) + : AudioTrack (s, "auditioner", Route::Hidden) +{ + string left = Config->get_auditioner_output_left(); + string right = Config->get_auditioner_output_right(); + + if (left == "default") { + left = _session.engine().get_nth_physical_output (DataType::AUDIO, 0); + } + + if (right == "default") { + right = _session.engine().get_nth_physical_output (DataType::AUDIO, 1); + } + + if ((left.length() == 0) && (right.length() == 0)) { + warning << _("no outputs available for auditioner - manual connection required") << endmsg; + return; + } + + defer_pan_reset (); + + if (left.length()) { + add_output_port (left, this, DataType::AUDIO); + } + + if (right.length()) { + audio_diskstream()->add_channel (1); + add_output_port (right, this, DataType::AUDIO); + } + + allow_pan_reset (); + + reset_panner (); + + IO::output_changed.connect (mem_fun (*this, &Auditioner::output_changed)); + + the_region.reset ((AudioRegion*) 0); + g_atomic_int_set (&_active, 0); +} + +Auditioner::~Auditioner () +{ +} + +AudioPlaylist& +Auditioner::prepare_playlist () +{ + // FIXME auditioner is still audio-only + boost::shared_ptr apl = boost::dynamic_pointer_cast(_diskstream->playlist()); + assert(apl); + + apl->clear (); + return *apl; +} + +void +Auditioner::audition_current_playlist () +{ + if (g_atomic_int_get (&_active)) { + /* don't go via session for this, because we are going + to remain active. + */ + cancel_audition (); + } + + Glib::Mutex::Lock lm (lock); + _diskstream->seek (0); + length = _diskstream->playlist()->get_maximum_extent(); + current_frame = 0; + + /* force a panner reset now that we have all channels */ + + _panner->reset (n_outputs().n_audio(), _diskstream->n_channels().n_audio()); + + g_atomic_int_set (&_active, 1); +} + +void +Auditioner::audition_region (boost::shared_ptr region) +{ + if (g_atomic_int_get (&_active)) { + /* don't go via session for this, because we are going + to remain active. + */ + cancel_audition (); + } + + if (boost::dynamic_pointer_cast(region) == 0) { + error << _("Auditioning of non-audio regions not yet supported") << endmsg; + return; + } + + Glib::Mutex::Lock lm (lock); + + /* copy it */ + + boost::shared_ptr the_region (boost::dynamic_pointer_cast (RegionFactory::create (region))); + the_region->set_position (0, this); + + _diskstream->playlist()->drop_regions (); + _diskstream->playlist()->add_region (the_region, 0, 1); + + if (_diskstream->n_channels().n_audio() < the_region->n_channels()) { + audio_diskstream()->add_channel (the_region->n_channels() - _diskstream->n_channels().n_audio()); + } else if (_diskstream->n_channels().n_audio() > the_region->n_channels()) { + audio_diskstream()->remove_channel (_diskstream->n_channels().n_audio() - the_region->n_channels()); + } + + /* force a panner reset now that we have all channels */ + + reset_panner(); + + length = the_region->length(); + + int dir; + nframes_t offset = the_region->sync_offset (dir); + + /* can't audition from a negative sync point */ + + if (dir < 0) { + offset = 0; + } + + _diskstream->seek (offset); + current_frame = offset; + + g_atomic_int_set (&_active, 1); +} + +int +Auditioner::play_audition (nframes_t nframes) +{ + bool need_butler; + nframes_t this_nframes; + int ret; + + if (g_atomic_int_get (&_active) == 0) { + silence (nframes, 0); + return 0; + } + + this_nframes = min (nframes, length - current_frame); + + _diskstream->prepare (); + + if ((ret = roll (this_nframes, current_frame, current_frame + nframes, 0, false, false, false)) != 0) { + silence (nframes, 0); + return ret; + } + + need_butler = _diskstream->commit (this_nframes); + current_frame += this_nframes; + + if (current_frame >= length) { + _session.cancel_audition (); + return 0; + } else { + return need_butler ? 1 : 0; + } +} + +void +Auditioner::output_changed (IOChange change, void* src) +{ + string phys; + + if (change & ConnectionsChanged) { + vector connections; + if (output (0)->get_connections (connections)) { + phys = _session.engine().get_nth_physical_output (DataType::AUDIO, 0); + if (phys != connections[0]) { + Config->set_auditioner_output_left (connections[0]); + } else { + Config->set_auditioner_output_left ("default"); + } + } else { + Config->set_auditioner_output_left (""); + } + + connections.clear (); + + if (output (1)->get_connections (connections)) { + phys = _session.engine().get_nth_physical_output (DataType::AUDIO, 1); + if (phys != connections[0]) { + Config->set_auditioner_output_right (connections[0]); + } else { + Config->set_auditioner_output_right ("default"); + } + } else { + Config->set_auditioner_output_right (""); + } + } +} -- cgit v1.2.3