add 1:1 convert, add es.po: thx sergio, cwdw zoom tweak, add done beep pots, bd forma...
[goodguy/cinelerra.git] / cinelerra-5.1 / cinelerra / convert.C
diff --git a/cinelerra-5.1/cinelerra/convert.C b/cinelerra-5.1/cinelerra/convert.C
new file mode 100644 (file)
index 0000000..9f4bfbd
--- /dev/null
@@ -0,0 +1,770 @@
+/*
+ * CINELERRA
+ * Copyright (C) 2015 Adam Williams <broadcast at earthling dot net>
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include "assets.h"
+#include "audiodevice.h"
+#include "autos.h"
+#include "bchash.h"
+#include "bcpot.h"
+#include "bctimer.h"
+#include "cache.h"
+#include "convert.h"
+#include "edl.h"
+#include "edlsession.h"
+#include "file.h"
+#include "filesystem.h"
+#include "formattools.h"
+#include "indexfile.h"
+#include "language.h"
+#include "localsession.h"
+#include "mainerror.h"
+#include "mainindexes.h"
+#include "mainprogress.h"
+#include "mainundo.h"
+#include "mutex.h"
+#include "mwindow.h"
+#include "mwindowgui.h"
+#include "packagedispatcher.h"
+#include "packagerenderer.h"
+#include "panautos.h"
+#include "panauto.h"
+#include "preferences.h"
+#include "render.h"
+#include "theme.h"
+#include "tracks.h"
+
+
+#define WIDTH xS(400)
+#define HEIGHT yS(320)
+#define MAX_SCALE 16
+
+ConvertRender::ConvertRender(MWindow *mwindow, const char *suffix)
+ : Thread(1, 0, 0)
+{
+       this->mwindow = mwindow;
+       this->suffix = cstrdup(suffix);
+       format_asset = 0;
+       progress = 0;
+       progress_timer = new Timer;
+       convert_progress = 0;
+       counter_lock = new Mutex("ConvertDialog::counter_lock");
+       total_rendered = 0;
+       remove_originals = 0;
+       failed = 0;  canceled = 0;
+       result = 0;
+       beep = 0;
+}
+
+ConvertRender::~ConvertRender()
+{
+       delete suffix;
+       delete progress;
+       delete counter_lock;
+       delete progress_timer;
+       delete convert_progress;
+       if( format_asset )
+               format_asset->remove_user();
+       reset();
+}
+
+void ConvertRender::reset()
+{
+       for( int i=0,n=orig_idxbls.size(); i<n; ++i )
+               orig_idxbls[i]->remove_user();
+       orig_idxbls.remove_all();
+       for( int i=0,n=orig_copies.size(); i<n; ++i )
+               orig_copies[i]->remove_user();
+       orig_copies.remove_all();
+       for( int i=0,n=needed_idxbls.size(); i<n; ++i )
+               needed_idxbls[i]->remove_user();
+       needed_idxbls.remove_all();
+       for( int i=0,n=needed_copies.size(); i<n; ++i )
+               needed_copies[i]->remove_user();
+       needed_copies.remove_all();
+}
+
+void ConvertRender::to_convert_path(char *new_path, Indexable *idxbl)
+{
+       strcpy(new_path, idxbl->path);
+       int n = strlen(suffix);
+       char *ep = new_path + strlen(new_path);
+       char *sfx = strrchr(new_path, '.');
+       if( sfx ) {
+// insert suffix, path.sfx => path+suffix-sfx.ext
+               char *bp = ep, *cp = (ep += n);
+               while( --bp > sfx ) *--cp = *bp;
+               *--cp = '-';
+       }
+       else {
+// insert suffix, path => path+suffix.ext
+               sfx = ep;  ep += n;
+       }
+       for( const char *cp=suffix; --n>=0; ++cp ) *sfx++ = *cp;
+       *ep++ = '.';
+       const char *ext = format_asset->format == FILE_FFMPEG ?
+                       format_asset->fformat :
+                       File::get_tag(format_asset->format);
+       while( *ext ) *ep++ = *ext++;
+       *ep = 0;
+}
+
+int ConvertRender::from_convert_path(char *path, Indexable *idxbl)
+{
+       strcpy(path, idxbl->path);
+       char *ep = path + strlen(path);
+       const char *ext = format_asset->format == FILE_FFMPEG ?
+                       format_asset->fformat :
+                       File::get_tag(format_asset->format);
+       const char *rp = ext + strlen(ext);
+       do {
+               --rp;  --ep;
+       } while( rp>=ext && ep>=path && *ep == *rp );
+       if( rp >= ext || ep < path && *--ep != '.' ) return 1;   // didnt find .ext
+       int n = strlen(suffix), len = 0;
+       char *lp = ep - n;  // <suffix-chars>+.ext
+       for( ; --lp>=path ; ++len ) {
+               if( strncmp(lp, suffix, n) ) continue;
+               if( !len || lp[n] == '-' ) break;
+       }
+       if( lp < path ) return 1;  // didnt find suffix
+       if( *(rp=lp+n) == '-' ) {
+// remove suffix, path+suffix-sfx.ext >= path.sfx
+               *lp++ = '.';  ++rp;
+               while( rp < ep ) *lp++ = *rp++;
+       }
+// remove suffix, path+suffix.ext => path
+       *lp = 0;
+       return 0;
+}
+
+EDL *ConvertRender::convert_edl(EDL *edl, Indexable *idxbl)
+{
+       Asset *copy_asset = edl->assets->get_asset(idxbl->path);
+       if( !copy_asset ) return 0;
+       if( !copy_asset->layers && !copy_asset->channels ) return 0;
+// make a clip from 1st video track and audio tracks
+       EDL *copy_edl = new EDL(edl);
+       copy_edl->create_objects();
+       copy_edl->set_path(copy_asset->path);
+       char path[BCTEXTLEN];
+       FileSystem fs;  fs.extract_name(path, copy_asset->path);
+       strcpy(copy_edl->local_session->clip_title, path);
+       strcpy(copy_edl->local_session->clip_notes, _("Convert clip"));
+       int64_t video_frames = idxbl->get_video_frames();
+       double frame_rate = idxbl->get_frame_rate();
+       double video_length = video_frames / frame_rate;
+       int64_t audio_samples = idxbl->get_audio_samples();
+       int sample_rate = idxbl->get_sample_rate();
+       double audio_length = (double)audio_samples / sample_rate;
+       copy_edl->session->video_tracks =
+                video_frames > 0 ? 1 : 0;
+       copy_edl->session->audio_tracks =
+                audio_samples > 0 ? copy_asset->channels : 0;
+       copy_edl->create_default_tracks();
+       Track *current = copy_edl->tracks->first;
+       for( int vtrack=0; current; current=NEXT ) {
+               if( current->data_type != TRACK_VIDEO ) continue;
+               current->insert_asset(copy_asset, 0, video_length, 0, vtrack);
+               break;
+       }
+       current = copy_edl->tracks->first;
+       for( int atrack=0; current; current=NEXT ) {
+               if( current->data_type != TRACK_AUDIO ) continue;
+               current->insert_asset(copy_asset, 0, audio_length, 0, atrack);
+               Autos *pan_autos = current->automation->autos[AUTOMATION_PAN];
+               PanAuto *pan_auto = (PanAuto*)pan_autos->get_auto_for_editing(-1);
+               for( int i=0; i < MAXCHANNELS; ++i ) pan_auto->values[i] = 0;
+               pan_auto->values[atrack++] = 1;
+               if( atrack >= MAXCHANNELS ) atrack = 0;
+       }
+       copy_edl->folder_no = AW_MEDIA_FOLDER;
+       return copy_edl;
+}
+
+int ConvertRender::add_original(EDL *edl, Indexable *idxbl)
+{
+       char new_path[BCTEXTLEN];
+// if idxbl already a convert
+       if( !from_convert_path(new_path, idxbl) ) return 0;
+// don't convert if not readable
+       if( idxbl->is_asset && access(idxbl->path, R_OK) ) return 0;
+// found readable unconverted asset
+       to_convert_path(new_path, idxbl);
+// add to orig_idxbls & orig_copies if it isn't already there.
+       int got_it = 0;
+       for( int i = 0; !got_it && i<orig_copies.size(); ++i )
+               got_it = !strcmp(orig_copies[i]->path, new_path);
+       if( got_it ) return 0;
+       idxbl->add_user();
+       orig_idxbls.append(idxbl);
+       int needed = 1;
+       Asset *convert = edl->assets->get_asset(new_path);
+       if( !convert ) {
+               convert = new Asset(new_path);
+               FileSystem fs;
+               if( fs.get_size(new_path) > 0 ) {
+// copy already on disk
+                       int64_t orig_mtime = fs.get_date(idxbl->path);
+                       int64_t convert_mtime = fs.get_date(new_path);
+// render needed if it is too old
+                       if( orig_mtime < convert_mtime ) {
+                               File file;
+                               int ret = file.open_file(mwindow->preferences, convert, 1, 0);
+// render not needed if can use copy
+                               if( ret == FILE_OK ) {
+                                       mwindow->mainindexes->add_next_asset(0, convert);
+                                       mwindow->mainindexes->start_build();
+                                       needed = 0;
+                               }
+                       }
+               }
+       }
+       else {
+// dont render if copy already an assets
+               convert->add_user();
+               needed = 0;
+       }
+       orig_copies.append(convert);
+       if( needed ) {
+               convert->copy_format(format_asset, 0);
+// new compression parameters
+               int64_t video_frames = idxbl->get_video_frames();
+               if( video_frames > 1 ) convert->video_data = 1;
+               int64_t audio_samples = idxbl->get_audio_samples();
+               if( audio_samples > 0 ) convert->audio_data = 1;
+               convert->folder_no = AW_MEDIA_FOLDER;
+               convert->layers = 1;
+               convert->width = idxbl->get_w();
+               if( convert->width & 1 ) ++convert->width;
+               convert->actual_width = convert->width;
+               convert->height = idxbl->get_h();
+               if( convert->height & 1 ) ++convert->height;
+               convert->actual_height = convert->height;
+               convert->frame_rate = mwindow->edl->session->frame_rate;
+               convert->sample_rate = mwindow->edl->session->sample_rate;
+               add_needed(idxbl, convert);
+       }
+       return 1;
+}
+
+void ConvertRender::add_needed(Indexable *idxbl, Asset *convert)
+{
+       needed_idxbls.append(idxbl);
+       idxbl->add_user();
+       needed_copies.append(convert);
+       convert->add_user();
+}
+
+
+int ConvertRender::is_canceled()
+{
+       return progress->is_cancelled();
+}
+
+int ConvertRender::find_convertable_assets(EDL *edl)
+{
+       reset();
+       Asset *orig_asset = edl->assets->first;
+       int count = 0;
+       for( ; orig_asset; orig_asset=orig_asset->next ) {
+               if( add_original(edl, orig_asset) )
+                       ++count;
+       }
+       return count;
+}
+
+void ConvertRender::set_format(Asset *asset)
+{
+       if( !format_asset )
+               format_asset = new Asset();
+       format_asset->copy_from(asset, 0);
+}
+
+void ConvertRender::start_convert(float beep, int remove_originals)
+{
+       this->beep = beep;
+       this->remove_originals = remove_originals;
+       start();
+}
+
+void ConvertRender::run()
+{
+       mwindow->stop_brender();
+       result = 0;
+       total_rendered = 0;
+       failed = 0;  canceled = 0;
+
+       progress_timer->update();
+       start_progress();
+
+       for( int i=0; !failed && !canceled && i<needed_copies.size(); ++i )
+               create_copy(i);
+
+       canceled = progress->is_cancelled();
+printf("convert: failed=%d canceled=%d\n", failed, canceled);
+       double elapsed_time = progress_timer->get_scaled_difference(1);
+
+       char elapsed[BCSTRLEN], text[BCSTRLEN];
+       Units::totext(elapsed, elapsed_time, TIME_HMS2);
+       printf("ConvertRender::run: done in %s\n", elapsed);
+       if( canceled )
+               strcpy(text, _("convert cancelled"));
+       else if( failed )
+               strcpy(text, _("convert failed"));
+       else
+               sprintf(text, _("convert %d files, render time %s"),
+                       needed_copies.size(), elapsed);
+// stop progress bar
+       stop_progress(text);
+
+       if( !failed ) {
+               mwindow->finish_convert(remove_originals);
+       }
+       else if( !canceled ) {
+               eprintf(_("Error making convert."));
+       }
+
+       if( !canceled && beep > 0 ) {
+               if( failed ) {
+                       mwindow->beep(4000., 0.5, beep);
+                       usleep(250000);
+                       mwindow->beep(1000., 0.5, beep);
+                       usleep(250000);
+                       mwindow->beep(4000., 0.5, beep);
+               }
+               else
+                       mwindow->beep(2000., 2.0, beep);
+       }
+       mwindow->restart_brender();
+}
+
+void ConvertRender::start_progress()
+{
+       double total_len= 0;
+       for( int i = 0; i < needed_idxbls.size(); i++ ) {
+               Indexable *orig_idxbl = needed_idxbls[i];
+               int64_t video_frames = orig_idxbl->get_video_frames();
+               double frame_rate = orig_idxbl->get_frame_rate();
+               double video_length = video_frames / frame_rate;
+               int64_t audio_samples = orig_idxbl->get_audio_samples();
+               int sample_rate = orig_idxbl->get_sample_rate();
+               double audio_length = (double)audio_samples / sample_rate;
+               double length = bmax(video_length, audio_length);
+               total_len += length;
+       }
+       int64_t total_samples = total_len * format_asset->sample_rate;
+       mwindow->gui->lock_window("Render::start_progress");
+       progress = mwindow->mainprogress->
+               start_progress(_("Convert files..."), total_samples);
+       mwindow->gui->unlock_window();
+       convert_progress = new ConvertProgress(mwindow, this);
+       convert_progress->start();
+}
+
+void ConvertRender::stop_progress(const char *msg)
+{
+       mwindow->gui->lock_window("ConvertRender::stop_progress");
+       delete convert_progress;
+       convert_progress = 0;
+       progress->update(0);
+       mwindow->mainprogress->end_progress(progress);
+       progress = 0;
+       mwindow->gui->show_message(msg);
+       mwindow->gui->update_default_message();
+       mwindow->gui->unlock_window();
+}
+
+
+ConvertPackageRenderer::ConvertPackageRenderer(ConvertRender *render)
+ : PackageRenderer()
+{
+       this->render = render;
+}
+
+ConvertPackageRenderer::~ConvertPackageRenderer()
+{
+}
+
+int ConvertPackageRenderer::get_master()
+{
+       return 1;
+}
+
+int ConvertPackageRenderer::get_result()
+{
+       return render->result;
+}
+
+void ConvertPackageRenderer::set_result(int value)
+{
+       if( value )
+               render->result = value;
+}
+
+void ConvertPackageRenderer::set_progress(int64_t value)
+{
+       render->counter_lock->lock("ConvertPackageRenderer::set_progress");
+// Increase total rendered for all nodes
+       render->total_rendered += value;
+       render->counter_lock->unlock();
+}
+
+int ConvertPackageRenderer::progress_cancelled()
+{
+       return render->progress && render->progress->is_cancelled();
+}
+
+ConvertProgress::ConvertProgress(MWindow *mwindow, ConvertRender *render)
+ : Thread(1, 0, 0)
+{
+       this->mwindow = mwindow;
+       this->render = render;
+       last_value = 0;
+}
+
+ConvertProgress::~ConvertProgress()
+{
+       cancel();
+       join();
+}
+
+void ConvertProgress::run()
+{
+       Thread::disable_cancel();
+       for( ;; ) {
+               if( render->total_rendered != last_value ) {
+                       render->progress->update(render->total_rendered);
+                       last_value = render->total_rendered;
+               }
+
+               Thread::enable_cancel();
+               sleep(1);
+               Thread::disable_cancel();
+       }
+}
+
+void ConvertRender::create_copy(int i)
+{
+       Indexable *orig_idxbl = needed_idxbls[i];
+       Asset *needed_copy = needed_copies[i];
+       int64_t video_frames = orig_idxbl->get_video_frames();
+       double frame_rate = orig_idxbl->get_frame_rate();
+       double video_length = video_frames / frame_rate;
+       int64_t audio_samples = orig_idxbl->get_audio_samples();
+       int sample_rate = orig_idxbl->get_sample_rate();
+       double audio_length = (double)audio_samples / sample_rate;
+       double length = bmax(video_length, audio_length);
+       EDL *edl = convert_edl(mwindow->edl, orig_idxbl);
+       ConvertPackageRenderer renderer(this);
+       renderer.initialize(mwindow, edl, mwindow->preferences, needed_copy);
+       PackageDispatcher dispatcher;
+       dispatcher.create_packages(mwindow, edl, mwindow->preferences,
+               SINGLE_PASS, needed_copy, 0, length, 0);
+       RenderPackage *package = dispatcher.get_package(0);
+       if( !renderer.render_package(package) ) {
+               Asset *asset = mwindow->edl->assets->update(needed_copy);
+               mwindow->mainindexes->add_next_asset(0, asset);
+               mwindow->mainindexes->start_build();
+       }
+       else
+               failed = 1;
+       edl->remove_user();
+}
+
+ConvertWindow::ConvertWindow(MWindow *mwindow, ConvertDialog *dialog, int x, int y)
+ : BC_Window(_(PROGRAM_NAME ": Convert settings"), x, y, WIDTH, HEIGHT,
+               -1, -1, 0, 0, 1)
+{
+       this->mwindow = mwindow;
+       this->dialog = dialog;
+       format_tools = 0;
+}
+
+ConvertWindow::~ConvertWindow()
+{
+       lock_window("ConvertWindow::~ConvertWindow");
+       delete format_tools;
+       unlock_window();
+}
+
+
+void ConvertWindow::create_objects()
+{
+       lock_window("ConvertWindow::create_objects");
+       int margin = mwindow->theme->widget_border;
+       int lmargin = margin + xS(10);
+
+       int x = lmargin;
+       int y = margin + yS(10);
+
+       BC_Title *text;
+       add_subwindow(text = new BC_Title(x, y,
+               _("Render untagged assets and replace in project")));
+       y += text->get_h() + margin + yS(10);
+       int y1 = y;
+       y += BC_Title::calculate_h(this, _("Tag suffix:")) + margin + yS(10);
+
+       x = lmargin;
+       format_tools = new ConvertFormatTools(mwindow, this, dialog->asset);
+       format_tools->create_objects(x, y, 1, 1, 1, 1, 0, 1, 0, 1, // skip the path
+               0, 0);
+
+       x = lmargin;
+       add_subwindow(text = new BC_Title(x, y1, _("Tag suffix:")));
+       x = format_tools->format_text->get_x();
+       add_subwindow(suffix_text = new ConvertSuffixText(this, dialog, x, y1));
+       x = lmargin;
+       y += margin + yS(10);
+
+       add_subwindow(remove_originals = new ConvertRemoveOriginals(this, x, y));
+       x = lmargin;
+       y += remove_originals->get_h() + margin;
+
+       add_subwindow(beep_on_done = new ConvertBeepOnDone(this, x, y));
+       x += beep_on_done->get_w() + margin + xS(10);
+       add_subwindow(new BC_Title(x, y+yS(10), _("Beep on done volume")));
+//     y += beep_on_done->get_h() + margin;
+
+       add_subwindow(new BC_OKButton(this));
+       add_subwindow(new BC_CancelButton(this));
+       show_window(1);
+       unlock_window();
+}
+
+ConvertSuffixText::ConvertSuffixText(ConvertWindow *gui,
+               ConvertDialog *dialog, int x, int y)
+ : BC_TextBox(x, y, 160, 1, dialog->suffix)
+{
+       this->gui = gui;
+       this->dialog = dialog;
+}
+
+ConvertSuffixText::~ConvertSuffixText()
+{
+}
+
+int ConvertSuffixText::handle_event()
+{
+       strcpy(dialog->suffix, get_text());
+       return 1;
+}
+
+ConvertFormatTools::ConvertFormatTools(MWindow *mwindow, ConvertWindow *gui, Asset *asset)
+ : FormatTools(mwindow, gui, asset)
+{
+       this->gui = gui;
+}
+
+void ConvertFormatTools::update_format()
+{
+       asset->save_defaults(mwindow->defaults, "CONVERT_", 1, 1, 0, 0, 0);
+       FormatTools::update_format();
+}
+
+
+ConvertMenuItem::ConvertMenuItem(MWindow *mwindow)
+ : BC_MenuItem(_("Convert..."),  _("Alt-e"), 'e')
+{
+       this->mwindow = mwindow;
+       set_alt();
+       dialog = 0;
+}
+ConvertMenuItem::~ConvertMenuItem()
+{
+       delete dialog;
+}
+
+void ConvertMenuItem::create_objects()
+{
+       dialog = new ConvertDialog(mwindow);
+}
+
+int ConvertMenuItem::handle_event()
+{
+       mwindow->gui->unlock_window();
+       dialog->start();
+       mwindow->gui->lock_window("ConvertMenuItem::handle_event");
+       return 1;
+}
+
+
+ConvertDialog::ConvertDialog(MWindow *mwindow)
+{
+       this->mwindow = mwindow;
+       gui = 0;
+       asset = new Asset;
+       strcpy(suffix, ".convert");
+// quicker than some, not as good as others
+       asset->format = FILE_FFMPEG;
+       strcpy(asset->fformat, "mp4");
+       strcpy(asset->vcodec, "h264.mp4");
+       asset->ff_video_bitrate = 2560000;
+       asset->video_data = 1;
+       strcpy(asset->acodec, "h264.mp4");
+       asset->ff_audio_bitrate = 256000;
+       asset->audio_data = 1;
+       remove_originals = 1;
+       beep = 0;
+}
+
+ConvertDialog::~ConvertDialog()
+{
+       close_window();
+       asset->remove_user();
+}
+
+BC_Window* ConvertDialog::new_gui()
+{
+       asset->format = FILE_FFMPEG;
+       asset->frame_rate = mwindow->edl->session->frame_rate;
+       asset->sample_rate = mwindow->edl->session->sample_rate;
+       asset->load_defaults(mwindow->defaults, "CONVERT_", 1, 1, 0, 1, 0);
+       remove_originals = mwindow->defaults->get("CONVERT_REMOVE_ORIGINALS", remove_originals);
+       beep = mwindow->defaults->get("CONVERT_BEEP", beep);
+       mwindow->defaults->get("CONVERT_SUFFIX", suffix);
+       mwindow->gui->lock_window("ConvertDialog::new_gui");
+       int cx, cy;
+       mwindow->gui->get_abs_cursor(cx, cy);
+       gui = new ConvertWindow(mwindow, this, cx - WIDTH/2, cy - HEIGHT/2);
+       gui->create_objects();
+       mwindow->gui->unlock_window();
+       return gui;
+}
+
+void ConvertDialog::handle_close_event(int result)
+{
+       if( result ) return;
+       mwindow->defaults->update("CONVERT_SUFFIX", suffix);
+       mwindow->defaults->update("CONVERT_REMOVE_ORIGINALS", remove_originals);
+       mwindow->defaults->update("CONVERT_BEEP", beep);
+       asset->save_defaults(mwindow->defaults, "CONVERT_", 1, 1, 0, 1, 0);
+       mwindow->start_convert(asset, suffix, beep, remove_originals);
+}
+
+
+ConvertRemoveOriginals::ConvertRemoveOriginals(ConvertWindow *gui, int x, int y)
+ : BC_CheckBox(x, y, gui->dialog->remove_originals, _("Remove originals from project"))
+{
+       this->gui = gui;
+}
+
+ConvertRemoveOriginals::~ConvertRemoveOriginals()
+{
+}
+
+int ConvertRemoveOriginals::handle_event()
+{
+       gui->dialog->remove_originals = get_value();
+       return 1;
+}
+
+ConvertBeepOnDone::ConvertBeepOnDone(ConvertWindow *gui, int x, int y)
+ : BC_FPot(x, y, gui->dialog->beep*100.f, 0.f, 100.f)
+{
+       this->gui = gui;
+}
+
+int ConvertBeepOnDone::handle_event()
+{
+       gui->dialog->beep = get_value()/100.f;
+       return 1;
+}
+
+ConvertBeep::ConvertBeep(MWindow *mwindow)
+ : Thread(1, 0, 0)
+{
+       this->mwindow = mwindow;
+       audio = new AudioDevice(mwindow);
+       playing_audio = 0;
+       interrupted = -1;
+}
+
+ConvertBeep::~ConvertBeep()
+{
+       stop(0);
+       delete audio;
+}
+
+void ConvertBeep::run()
+{
+       int channels = 2;
+       int64_t bfrsz = BEEP_SAMPLE_RATE;
+       EDL *edl = mwindow->edl;
+       EDLSession *session = edl->session;
+       AudioOutConfig *aconfig = session->playback_config->aconfig;
+       audio->open_output(aconfig, BEEP_SAMPLE_RATE, bfrsz, channels, 0);
+       audio->start_playback();
+
+       double out0[bfrsz], out1[bfrsz], *out[2] = { out0, out1 };
+       const double two_pi = 2*M_PI;
+       int64_t audio_len = BEEP_SAMPLE_RATE * secs;
+       const double dt = two_pi * freq/BEEP_SAMPLE_RATE;
+       double th = 0;
+
+       audio_pos = 0;
+       playing_audio = 1;
+       while( !interrupted ) {
+               int len = audio_len - audio_pos;
+               if( len <= 0 ) break;
+               if( len > bfrsz ) len = bfrsz;
+               int k = audio_pos;
+               for( int i=0; i<len; ++i,++k,th+=dt ) {
+                       double t = th - two_pi;
+                       if( t >= 0 ) th = t;
+                       out0[i] = out1[i] = sin(th) * gain;
+               }
+               audio->write_buffer(out, channels, len);
+               audio_pos = k;
+       }
+
+       if( !interrupted )
+               audio->set_last_buffer();
+       audio->stop_audio(interrupted ? 0 : 1);
+       playing_audio = 0;
+
+       audio->close_all();
+}
+
+void ConvertBeep::start()
+{
+       if( running() ) return;
+       audio_pos = -1;
+       interrupted = 0;
+       Thread::start();
+}
+
+void ConvertBeep::stop(int wait)
+{
+       if( running() && !interrupted ) {
+               interrupted = 1;
+               audio->stop_audio(wait);
+       }
+       Thread::join();
+}
+
+void ConvertBeep::tone(double freq, double secs, double gain)
+{
+       stop(0);
+       this->freq = freq;
+       this->secs = secs;
+       this->gain = gain;
+       start();
+}
+