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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.
$Id$
*/
#include <unistd.h>
#include <climits>
#include <gtkmm/messagedialog.h>
#include "export_session_dialog.h"
#include "export_region_dialog.h"
#include "export_range_markers_dialog.h"
#include "editor.h"
#include "public_editor.h"
#include "selection.h"
#include "time_axis_view.h"
#include "audio_time_axis.h"
#include "audio_region_view.h"
#include <pbd/pthread_utils.h>
#include <ardour/types.h>
#include <ardour/export.h>
#include <ardour/audio_track.h>
#include <ardour/audiofilesource.h>
#include <ardour/audio_diskstream.h>
#include <ardour/audioregion.h>
#include <ardour/audioplaylist.h>
#include <ardour/source_factory.h>
#include <ardour/audiofilesource.h>
#include "i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace Gtk;
void
Editor::export_session()
{
if (session) {
export_range (session->current_start_frame(), session->current_end_frame());
}
}
void
Editor::export_selection ()
{
if (session) {
if (selection->time.empty()) {
MessageDialog message (*this, _("There is no selection to export.\n\nSelect a selection using the range mouse mode"));
message.run ();
return;
}
export_range (selection->time.front().start, selection->time.front().end);
}
}
void
Editor::export_range (nframes_t start, nframes_t end)
{
if (session) {
if (export_dialog == 0) {
export_dialog = new ExportSessionDialog (*this);
}
export_dialog->connect_to_session (session);
export_dialog->set_range (start, end);
export_dialog->start_export();
}
}
void
Editor::export_region ()
{
if (clicked_regionview == 0) {
return;
}
ExportDialog* dialog = new ExportRegionDialog (*this, clicked_regionview->region());
dialog->connect_to_session (session);
dialog->set_range (
clicked_regionview->region()->first_frame(),
clicked_regionview->region()->last_frame());
dialog->start_export();
}
void
Editor::export_range_markers ()
{
if (session) {
if (session->locations()->num_range_markers() == 0) {
MessageDialog message (*this, _("There are no ranges to export.\n\nCreate 1 or more ranges by dragging the mouse in the range bar"));
message.run ();
return;
}
if (export_range_markers_dialog == 0) {
export_range_markers_dialog = new ExportRangeMarkersDialog(*this);
}
export_range_markers_dialog->connect_to_session (session);
export_range_markers_dialog->start_export();
}
}
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;
}
return 0;
}
void
Editor::bounce_region_selection ()
{
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());
Track* track = dynamic_cast<Track*>(rtv->route().get());
InterThreadInfo itt;
itt.done = false;
itt.cancel = false;
itt.progress = 0.0f;
track->bounce_range (region->position(), region->position() + region->length(), itt);
}
}
bool
Editor::write_region (string path, boost::shared_ptr<AudioRegion> region)
{
boost::shared_ptr<AudioFileSource> fs;
const nframes_t chunk_size = 4096;
nframes_t to_read;
Sample buf[chunk_size];
gain_t gain_buffer[chunk_size];
nframes_t pos;
char s[PATH_MAX+1];
uint32_t cnt;
vector<boost::shared_ptr<AudioFileSource> > sources;
uint32_t nchans;
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()) {
/* 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", session->sound_dir().c_str(),
legalize_for_path(region->name()).c_str(), cnt);
}
else {
snprintf (s, sizeof(s), "%s/%s_%" PRIu32 "-%" PRId32 ".wav", session->sound_dir().c_str(),
legalize_for_path(region->name()).c_str(), cnt, n);
}
path = s;
if (::access (path.c_str(), F_OK) != 0) {
break;
}
}
if (cnt == 999999) {
error << "" << endmsg;
goto error_out;
}
try {
fs = boost::dynamic_pointer_cast<AudioFileSource> (SourceFactory::createReadable (*session, path, AudioFileSource::Flag (0)));
}
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) {
nframes_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);
}
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()) {
AudioPlaylist* playlist = dynamic_cast<AudioPlaylist*>(atv->get_diskstream()->playlist());
if (playlist && write_audio_range (*playlist, atv->get_diskstream()->n_channels(), ts) == 0) {
ret = -1;
break;
}
}
}
return ret;
}
bool
Editor::write_audio_range (AudioPlaylist& playlist, uint32_t channels, list<AudioRange>& range)
{
boost::shared_ptr<AudioFileSource> fs;
const nframes_t chunk_size = 4096;
nframes_t nframes;
Sample buf[chunk_size];
gain_t gain_buffer[chunk_size];
nframes_t pos;
char s[PATH_MAX+1];
uint32_t cnt;
string path;
vector<boost::shared_ptr<AudioFileSource> > sources;
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", session->sound_dir().c_str(),
legalize_for_path(playlist.name()).c_str(), cnt);
}
else {
snprintf (s, sizeof(s), "%s/%s_%" PRIu32 "-%" PRId32 ".wav", session->sound_dir().c_str(),
legalize_for_path(playlist.name()).c_str(), cnt, n);
}
if (::access (s, F_OK) != 0) {
break;
}
}
if (cnt == 999999) {
error << "" << endmsg;
goto error_out;
}
path = s;
try {
fs = boost::dynamic_pointer_cast<AudioFileSource> (SourceFactory::createReadable (*session, path, AudioFileSource::Flag (0)));
}
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) {
nframes_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) {
nframes_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 (uint32_t n=0; n < channels; ++n) {
sources[n]->update_header (0, *now, tnow);
// 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);
}
}