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livetrax/gtk2_ardour/editor_export_audio.cc

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/*
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.
*/
/* Note: public Editor methods are documented in public_editor.h */
#include <inttypes.h>
#include <unistd.h>
#include <climits>
#include <gtkmm/messagedialog.h>
#include "pbd/gstdio_compat.h"
#include "gtkmm2ext/choice.h"
#include "pbd/pthread_utils.h"
#include "ardour/audio_track.h"
#include "ardour/audiofilesource.h"
#include "ardour/audioplaylist.h"
#include "ardour/audioregion.h"
#include "ardour/chan_count.h"
#include "ardour/midi_region.h"
#include "ardour/session.h"
#include "ardour/session_directory.h"
#include "ardour/source_factory.h"
#include "ardour/types.h"
#include "audio_region_view.h"
#include "audio_time_axis.h"
#include "editor.h"
#include "export_dialog.h"
#include "midi_export_dialog.h"
#include "midi_region_view.h"
#include "public_editor.h"
#include "selection.h"
#include "time_axis_view.h"
#include "utils.h"
#include "pbd/i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace Gtk;
void
Editor::export_audio ()
{
ExportDialog dialog (*this, _("Export"), ExportProfileManager::RegularExport);
dialog.set_session (_session);
dialog.run();
}
void
Editor::stem_export ()
{
StemExportDialog dialog (*this);
dialog.set_session (_session);
dialog.run();
}
void
Editor::export_selection ()
{
ExportSelectionDialog dialog (*this);
dialog.set_session (_session);
dialog.run();
}
void
Editor::export_range ()
{
ArdourMarker* marker;
if ((marker = reinterpret_cast<ArdourMarker *> (marker_menu_item->get_data ("marker"))) == 0) {
fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
abort(); /*NOTREACHED*/
}
Location* l;
bool is_start;
if (((l = find_location_from_marker (marker, is_start)) != 0) && (l->end() > l->start())) {
ExportRangeDialog dialog (*this, l->id().to_s());
dialog.set_session (_session);
dialog.run();
}
}
bool
Editor::process_midi_export_dialog (MidiExportDialog& dialog, boost::shared_ptr<MidiRegion> midi_region)
{
string path = dialog.get_path ();
if (Glib::file_test (path, Glib::FILE_TEST_EXISTS)) {
bool overwrite = ARDOUR_UI_UTILS::overwrite_file_dialog (dialog,
_("Confirm MIDI File Overwrite"),
_("A file with the same name already exists. Do you want to overwrite it?"));
if (!overwrite) {
return false;
}
/* force ::g_unlink because the backend code will
go wrong if it tries to open an existing
file for writing.
*/
::g_unlink (path.c_str());
}
return midi_region->do_export (path);
}
/** Export the first selected region */
void
Editor::export_region ()
{
if (selection->regions.empty()) {
return;
}
boost::shared_ptr<Region> r = selection->regions.front()->region();
boost::shared_ptr<AudioRegion> audio_region = boost::dynamic_pointer_cast<AudioRegion>(r);
boost::shared_ptr<MidiRegion> midi_region = boost::dynamic_pointer_cast<MidiRegion>(r);
if (audio_region) {
RouteTimeAxisView & rtv (dynamic_cast<RouteTimeAxisView &> (selection->regions.front()->get_time_axis_view()));
AudioTrack & track (dynamic_cast<AudioTrack &> (*rtv.route()));
ExportRegionDialog dialog (*this, *(audio_region.get()), track);
dialog.set_session (_session);
dialog.run ();
} else if (midi_region) {
MidiExportDialog dialog (*this, midi_region);
dialog.set_session (_session);
bool finished = false;
while (!finished) {
switch (dialog.run ()) {
case Gtk::RESPONSE_ACCEPT:
finished = process_midi_export_dialog (dialog, midi_region);
break;
default:
finished = true;
return;
}
}
}
}
int
Editor::write_region_selection (RegionSelection& regions)
{
for (RegionSelection::iterator i = regions.begin(); i != regions.end(); ++i) {
AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
if (arv) {
if (write_region ("", arv->audio_region()) == false)
return -1;
}
MidiRegionView* mrv = dynamic_cast<MidiRegionView*>(*i);
if (mrv) {
warning << "MIDI region export not implemented" << endmsg;
}
}
return 0;
}
void
Editor::bounce_region_selection (bool with_processing)
{
/* no need to check for bounceable() because this operation never puts
* its results back in the playlist (only in the region list).
*/
for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
boost::shared_ptr<Region> region ((*i)->region());
RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&(*i)->get_time_axis_view());
boost::shared_ptr<Track> track = boost::dynamic_pointer_cast<Track> (rtv->route());
InterThreadInfo itt;
boost::shared_ptr<Region> r;
if (with_processing) {
r = track->bounce_range (region->position(), region->position() + region->length(), itt, track->main_outs(), false);
} else {
r = track->bounce_range (region->position(), region->position() + region->length(), itt, boost::shared_ptr<Processor>(), false);
}
}
}
bool
Editor::write_region (string path, boost::shared_ptr<AudioRegion> region)
{
boost::shared_ptr<AudioFileSource> fs;
const framepos_t chunk_size = 4096;
framepos_t to_read;
Sample buf[chunk_size];
gain_t gain_buffer[chunk_size];
framepos_t pos;
char s[PATH_MAX+1];
uint32_t cnt;
vector<boost::shared_ptr<AudioFileSource> > sources;
uint32_t nchans;
const string sound_directory = _session->session_directory().sound_path();
nchans = region->n_channels();
/* don't do duplicate of the entire source if that's what is going on here */
if (region->start() == 0 && region->length() == region->source_length(0)) {
/* XXX should link(2) to create a new inode with "path" */
return true;
}
if (path.length() == 0) {
for (uint32_t n=0; n < nchans; ++n) {
for (cnt = 0; cnt < 999999; ++cnt) {
if (nchans == 1) {
snprintf (s, sizeof(s), "%s/%s_%" PRIu32 ".wav", sound_directory.c_str(),
legalize_for_path(region->name()).c_str(), cnt);
}
else {
snprintf (s, sizeof(s), "%s/%s_%" PRIu32 "-%" PRId32 ".wav", sound_directory.c_str(),
legalize_for_path(region->name()).c_str(), cnt, n);
}
path = s;
if (!Glib::file_test (path, Glib::FILE_TEST_EXISTS)) {
break;
}
}
if (cnt == 999999) {
error << "" << endmsg;
goto error_out;
}
try {
fs = boost::dynamic_pointer_cast<AudioFileSource> (
SourceFactory::createWritable (DataType::AUDIO, *_session,
path, true,
false, _session->frame_rate()));
}
catch (failed_constructor& err) {
goto error_out;
}
sources.push_back (fs);
}
}
else {
/* TODO: make filesources based on passed path */
}
to_read = region->length();
pos = region->position();
while (to_read) {
framepos_t this_time;
this_time = min (to_read, chunk_size);
for (vector<boost::shared_ptr<AudioFileSource> >::iterator src=sources.begin(); src != sources.end(); ++src) {
fs = (*src);
if (region->read_at (buf, buf, gain_buffer, pos, this_time) != this_time) {
break;
}
if (fs->write (buf, this_time) != this_time) {
error << "" << endmsg;
goto error_out;
}
}
to_read -= this_time;
pos += this_time;
}
time_t tnow;
struct tm* now;
time (&tnow);
now = localtime (&tnow);
for (vector<boost::shared_ptr<AudioFileSource> >::iterator src = sources.begin(); src != sources.end(); ++src) {
(*src)->update_header (0, *now, tnow);
(*src)->mark_immutable ();
}
return true;
error_out:
for (vector<boost::shared_ptr<AudioFileSource> >::iterator i = sources.begin(); i != sources.end(); ++i) {
(*i)->mark_for_remove ();
}
return 0;
}
int
Editor::write_audio_selection (TimeSelection& ts)
{
int ret = 0;
if (selection->tracks.empty()) {
return 0;
}
for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
AudioTimeAxisView* atv;
if ((atv = dynamic_cast<AudioTimeAxisView*>(*i)) == 0) {
continue;
}
if (atv->is_audio_track()) {
boost::shared_ptr<AudioPlaylist> playlist = boost::dynamic_pointer_cast<AudioPlaylist>(atv->track()->playlist());
if (playlist && write_audio_range (*playlist, atv->track()->n_channels(), ts) == 0) {
ret = -1;
break;
}
}
}
return ret;
}
bool
Editor::write_audio_range (AudioPlaylist& playlist, const ChanCount& count, list<AudioRange>& range)
{
boost::shared_ptr<AudioFileSource> fs;
const framepos_t chunk_size = 4096;
framepos_t nframes;
Sample buf[chunk_size];
gain_t gain_buffer[chunk_size];
framepos_t pos;
char s[PATH_MAX+1];
uint32_t cnt;
string path;
vector<boost::shared_ptr<AudioFileSource> > sources;
const string sound_directory = _session->session_directory().sound_path();
uint32_t channels = count.n_audio();
for (uint32_t n=0; n < channels; ++n) {
for (cnt = 0; cnt < 999999; ++cnt) {
if (channels == 1) {
snprintf (s, sizeof(s), "%s/%s_%" PRIu32 ".wav", sound_directory.c_str(),
legalize_for_path(playlist.name()).c_str(), cnt);
}
else {
snprintf (s, sizeof(s), "%s/%s_%" PRIu32 "-%" PRId32 ".wav", sound_directory.c_str(),
legalize_for_path(playlist.name()).c_str(), cnt, n);
}
if (!Glib::file_test (s, Glib::FILE_TEST_EXISTS)) {
break;
}
}
if (cnt == 999999) {
error << "" << endmsg;
goto error_out;
}
path = s;
try {
fs = boost::dynamic_pointer_cast<AudioFileSource> (
SourceFactory::createWritable (DataType::AUDIO, *_session,
path, true,
false, _session->frame_rate()));
}
catch (failed_constructor& err) {
goto error_out;
}
sources.push_back (fs);
}
for (list<AudioRange>::iterator i = range.begin(); i != range.end();) {
nframes = (*i).length();
pos = (*i).start;
while (nframes) {
framepos_t this_time;
this_time = min (nframes, chunk_size);
for (uint32_t n=0; n < channels; ++n) {
fs = sources[n];
if (playlist.read (buf, buf, gain_buffer, pos, this_time, n) != this_time) {
break;
}
if (fs->write (buf, this_time) != this_time) {
goto error_out;
}
}
nframes -= this_time;
pos += this_time;
}
list<AudioRange>::iterator tmp = i;
++tmp;
if (tmp != range.end()) {
/* fill gaps with silence */
nframes = (*tmp).start - (*i).end;
while (nframes) {
framepos_t this_time = min (nframes, chunk_size);
memset (buf, 0, sizeof (Sample) * this_time);
for (uint32_t n=0; n < channels; ++n) {
fs = sources[n];
if (fs->write (buf, this_time) != this_time) {
goto error_out;
}
}
nframes -= this_time;
}
}
i = tmp;
}
time_t tnow;
struct tm* now;
time (&tnow);
now = localtime (&tnow);
for (vector<boost::shared_ptr<AudioFileSource> >::iterator s = sources.begin(); s != sources.end(); ++s) {
(*s)->update_header (0, *now, tnow);
(*s)->mark_immutable ();
// do we need to ref it again?
}
return true;
error_out:
/* unref created files */
for (vector<boost::shared_ptr<AudioFileSource> >::iterator i = sources.begin(); i != sources.end(); ++i) {
(*i)->mark_for_remove ();
}
return false;
}
void
Editor::write_selection ()
{
if (!selection->time.empty()) {
write_audio_selection (selection->time);
} else if (!selection->regions.empty()) {
write_region_selection (selection->regions);
}
}
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