273 lines
6.6 KiB
C++
273 lines
6.6 KiB
C++
/*
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Copyright (C) 2001 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <glibmm/threads.h>
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#include "pbd/error.h"
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#include "ardour/audio_diskstream.h"
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#include "ardour/audioregion.h"
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#include "ardour/audioengine.h"
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#include "ardour/delivery.h"
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#include "ardour/route.h"
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#include "ardour/session.h"
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#include "ardour/auditioner.h"
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#include "ardour/audioplaylist.h"
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#include "ardour/audio_port.h"
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#include "ardour/data_type.h"
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#include "ardour/region_factory.h"
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using namespace std;
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using namespace ARDOUR;
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using namespace PBD;
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#include "i18n.h"
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Auditioner::Auditioner (Session& s)
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: AudioTrack (s, "auditioner", Route::Auditioner)
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, current_frame (0)
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, _auditioning (0)
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, length (0)
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, via_monitor (false)
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{
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}
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int
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Auditioner::init ()
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{
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if (Track::init ()) {
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return -1;
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}
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string left = Config->get_auditioner_output_left();
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string right = Config->get_auditioner_output_right();
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vector<string> outputs;
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_session.engine().get_physical_outputs (DataType::AUDIO, outputs);
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if (left.empty() || left == "default") {
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if (_session.monitor_out()) {
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left = _session.monitor_out()->input()->audio (0)->name();
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via_monitor = true;
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} else {
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if (outputs.size() > 0) {
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left = outputs[0];
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}
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}
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}
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if (right.empty() || right == "default") {
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if (_session.monitor_out()) {
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right = _session.monitor_out()->input()->audio (1)->name();
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via_monitor = true;
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} else {
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if (outputs.size() > 1) {
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right = outputs[1];
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}
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}
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}
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if (left.empty() && right.empty()) {
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warning << _("no outputs available for auditioner - manual connection required") << endmsg;
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} else {
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_main_outs->defer_pan_reset ();
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if (left.length()) {
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_output->add_port (left, this, DataType::AUDIO);
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}
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if (right.length()) {
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_output->add_port (right, this, DataType::AUDIO);
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}
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_main_outs->allow_pan_reset ();
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_main_outs->reset_panner ();
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}
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_output->changed.connect_same_thread (*this, boost::bind (&Auditioner::output_changed, this, _1, _2));
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return 0;
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}
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Auditioner::~Auditioner ()
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{
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}
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AudioPlaylist&
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Auditioner::prepare_playlist ()
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{
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// FIXME auditioner is still audio-only
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boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(_diskstream->playlist());
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assert(apl);
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apl->clear ();
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return *apl;
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}
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void
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Auditioner::audition_region (boost::shared_ptr<Region> region)
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{
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if (g_atomic_int_get (&_auditioning)) {
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/* don't go via session for this, because we are going
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to remain active.
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*/
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cancel_audition ();
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}
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if (boost::dynamic_pointer_cast<AudioRegion>(region) == 0) {
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error << _("Auditioning of non-audio regions not yet supported") << endmsg;
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return;
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}
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Glib::Threads::Mutex::Lock lm (lock);
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/* copy it */
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boost::shared_ptr<AudioRegion> the_region (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (region)));
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the_region->set_position (0);
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_diskstream->playlist()->drop_regions ();
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_diskstream->playlist()->add_region (the_region, 0, 1);
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if (_diskstream->n_channels().n_audio() < the_region->n_channels()) {
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audio_diskstream()->add_channel (the_region->n_channels() - _diskstream->n_channels().n_audio());
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} else if (_diskstream->n_channels().n_audio() > the_region->n_channels()) {
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audio_diskstream()->remove_channel (_diskstream->n_channels().n_audio() - the_region->n_channels());
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}
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ProcessorStreams ps;
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{
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Glib::Threads::Mutex::Lock lm (AudioEngine::instance()->process_lock ());
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if (configure_processors (&ps)) {
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error << string_compose (_("Cannot setup auditioner processing flow for %1 channels"),
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_diskstream->n_channels()) << endmsg;
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return;
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}
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}
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/* force a panner reset now that we have all channels */
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_main_outs->reset_panner();
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length = the_region->length();
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int dir;
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framecnt_t offset = the_region->sync_offset (dir);
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/* can't audition from a negative sync point */
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if (dir < 0) {
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offset = 0;
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}
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_diskstream->seek (offset);
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current_frame = offset;
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g_atomic_int_set (&_auditioning, 1);
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}
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int
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Auditioner::play_audition (framecnt_t nframes)
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{
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bool need_butler = false;
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framecnt_t this_nframes;
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int ret;
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if (g_atomic_int_get (&_auditioning) == 0) {
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silence (nframes);
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return 0;
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}
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this_nframes = min (nframes, length - current_frame);
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if ((ret = roll (this_nframes, current_frame, current_frame + nframes, false, need_butler)) != 0) {
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silence (nframes);
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return ret;
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}
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current_frame += this_nframes;
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if (current_frame >= length) {
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_session.cancel_audition ();
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return 0;
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} else {
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return need_butler ? 1 : 0;
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}
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}
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void
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Auditioner::output_changed (IOChange change, void* /*src*/)
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{
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if (change.type & IOChange::ConnectionsChanged) {
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string phys;
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vector<string> connections;
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vector<string> outputs;
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_session.engine().get_physical_outputs (DataType::AUDIO, outputs);
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if (_output->nth (0)->get_connections (connections)) {
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if (outputs.size() > 0) {
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phys = outputs[0];
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}
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if (phys != connections[0]) {
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Config->set_auditioner_output_left (connections[0]);
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} else {
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Config->set_auditioner_output_left ("default");
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}
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} else {
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Config->set_auditioner_output_left ("");
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}
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connections.clear ();
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if (_output->nth (1)->get_connections (connections)) {
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if (outputs.size() > 1) {
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phys = outputs[1];
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}
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if (phys != connections[0]) {
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Config->set_auditioner_output_right (connections[0]);
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} else {
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Config->set_auditioner_output_right ("default");
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}
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} else {
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Config->set_auditioner_output_right ("");
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}
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}
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}
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ChanCount
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Auditioner::input_streams () const
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{
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/* auditioner never has any inputs - its channel configuration
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depends solely on the region we are auditioning.
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*/
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if (audio_diskstream()) {
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return audio_diskstream()->n_channels();
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}
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return ChanCount ();
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}
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MonitorState
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Auditioner::monitoring_state () const
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{
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return MonitoringDisk;
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}
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