4 * Copyright (C) 2015 Adam Williams <broadcast at earthling dot net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #include "audiodevice.h"
24 #include "bcsignals.h"
29 #include "edlsession.h"
32 #include "filesystem.h"
33 #include "formattools.h"
35 #include "mainerror.h"
36 #include "mainindexes.h"
37 #include "mainprogress.h"
41 #include "mwindowgui.h"
42 #include "overlayframe.h"
43 #include "preferences.h"
45 #include "renderengine.h"
47 #include "transportque.h"
51 #define HEIGHT yS(330)
54 ProxyMenuItem::ProxyMenuItem(MWindow *mwindow)
55 : BC_MenuItem(_("Proxy settings..."), _("Alt-r"), 'r')
57 this->mwindow = mwindow;
61 ProxyMenuItem::~ProxyMenuItem()
66 void ProxyMenuItem::create_objects()
68 dialog = new ProxyDialog(mwindow);
71 int ProxyMenuItem::handle_event()
73 mwindow->gui->unlock_window();
75 mwindow->gui->lock_window("ProxyMenuItem::handle_event");
80 ProxyDialog::ProxyDialog(MWindow *mwindow)
82 this->mwindow = mwindow;
86 // quicker than some, not as good as others
87 asset->format = FILE_FFMPEG;
88 strcpy(asset->fformat, "mpeg");
89 strcpy(asset->vcodec, "mpeg.mpeg");
90 asset->ff_video_bitrate = 2000000;
91 asset->video_data = 1;
93 bzero(size_text, sizeof(char*) * MAX_SIZES);
94 bzero(size_factors, sizeof(int) * MAX_SIZES);
95 size_text[0] = cstrdup(_("Original size"));
100 ProxyDialog::~ProxyDialog()
103 for( int i=0; i<MAX_SIZES; ++i ) delete [] size_text[i];
104 asset->remove_user();
107 BC_Window* ProxyDialog::new_gui()
109 asset->format = FILE_FFMPEG;
110 asset->load_defaults(mwindow->defaults, "PROXY_", 1, 1, 0, 0, 0);
111 mwindow->gui->lock_window("ProxyDialog::new_gui");
113 mwindow->gui->get_abs_cursor(cx, cy);
114 gui = new ProxyWindow(mwindow, this, cx - WIDTH/2, cy - HEIGHT/2);
115 gui->create_objects();
116 mwindow->gui->unlock_window();
120 void ProxyDialog::scale_to_text(char *string, int scale)
122 strcpy(string, size_text[0]);
123 for( int i = 0; i < total_sizes; i++ ) {
124 if( scale == size_factors[i] ) {
125 strcpy(string, size_text[i]);
132 void ProxyDialog::calculate_sizes()
134 for( int i=1; i<total_sizes; ++i ) {
135 delete [] size_text[i];
142 // w,h should stay even for yuv
143 int ow = orig_w, oh = orig_h;
144 if( BC_CModels::is_yuv(mwindow->edl->session->color_model) ) {
147 for( int i=2; i<MAX_SCALE; ++i ) {
148 if( (ow % i) != 0 ) continue;
149 if( (oh % i) != 0 ) continue;
150 size_factors[total_sizes++] = i;
154 size_factors[total_sizes++] = 2; size_factors[total_sizes++] = 3;
155 size_factors[total_sizes++] = 8; size_factors[total_sizes++] = 12;
156 size_factors[total_sizes++] = 16; size_factors[total_sizes++] = 24;
157 size_factors[total_sizes++] = 32;
159 for( int i=1; i<total_sizes; ++i ) {
160 char string[BCTEXTLEN];
161 sprintf(string, "1/%d", size_factors[i]);
162 size_text[i] = cstrdup(string);
166 void ProxyDialog::handle_close_event(int result)
169 if( !File::renders_video(asset) ) {
170 eprintf("Specified format does not render video");
173 mwindow->edl->session->proxy_auto_scale = auto_scale;
174 mwindow->edl->session->proxy_beep = beep;
175 mwindow->edl->session->proxy_disabled_scale = 1;
176 mwindow->gui->lock_window("ProxyDialog::handle_close_event");
177 mwindow->gui->update_proxy_toggle();
178 mwindow->gui->unlock_window();
179 asset->save_defaults(mwindow->defaults, "PROXY_", 1, 1, 0, 0, 0);
180 result = mwindow->to_proxy(asset, new_scale, use_scaler);
181 if( result >= 0 && beep && new_scale != 1 ) {
182 static struct { double freq, secs, gain; }
183 tone[2] = { { 2000., 1.5, 0.5 }, { 4000., 0.25, 0.5 } };
184 int i = result > 0 ? 0 : 1;
185 mwindow->beep(tone[i].freq, tone[i].secs, tone[i].gain);
189 void ProxyRender::to_proxy_path(char *new_path, Indexable *indexable, int scale)
191 // path is already a proxy
192 if( strstr(indexable->path, ".proxy") ) return;
193 strcpy(new_path, indexable->path);
195 int n = sprintf(prxy, ".proxy%d", scale);
196 // insert proxy, path.sfx => path.proxy#-sfx.ext
197 char *ep = new_path + strlen(new_path);
198 char *sfx = strrchr(new_path, '.');
200 char *bp = ep, *cp = (ep += n);
201 while( --bp > sfx ) *--cp = *bp;
207 for( char *cp=prxy; --n>=0; ++cp ) *sfx++ = *cp;
209 const char *ext = indexable->get_video_frames() < 0 ? "png" :
210 format_asset->format == FILE_FFMPEG ?
211 format_asset->fformat :
212 File::get_tag(format_asset->format);
213 while( *ext ) *ep++ = *ext++;
215 //printf("ProxyRender::to_proxy_path %d %s %s\n", __LINE__, new_path), asset->path);
218 int ProxyRender::from_proxy_path(char *new_path, Indexable *indexable, int scale)
220 char prxy[BCTEXTLEN];
221 int n = sprintf(prxy, ".proxy%d", scale);
222 strcpy(new_path, indexable->path);
223 char *ptr = strstr(new_path, prxy);
224 if( !ptr || (ptr[n] != '-' && ptr[n] != '.') ) return 1;
225 // remove proxy, path.proxy#-sfx.ext => path.sfx
226 char *ext = strrchr(ptr, '.');
227 if( !ext ) ext = ptr + strlen(ptr);
229 for( *cp='.'; cp<ext; ++cp ) *ptr++ = *cp;
234 ProxyRender::ProxyRender(MWindow *mwindow, Asset *format_asset, int asset_scale)
236 this->mwindow = mwindow;
237 this->format_asset = format_asset;
238 this->asset_scale = asset_scale;
240 counter_lock = new Mutex("ProxyDialog::counter_lock");
242 failed = 0; canceled = 0;
245 ProxyRender::~ProxyRender()
250 for( int i=0,n=orig_idxbls.size(); i<n; ++i ) orig_idxbls[i]->remove_user();
251 for( int i=0,n=orig_proxies.size(); i<n; ++i ) orig_proxies[i]->remove_user();
252 for( int i=0,n=needed_idxbls.size(); i<n; ++i ) needed_idxbls[i]->remove_user();
253 for( int i=0,n=needed_proxies.size(); i<n; ++i ) needed_proxies[i]->remove_user();
256 Asset *ProxyRender::add_original(Indexable *idxbl, int new_scale)
258 if( !idxbl->have_video() ) return 0;
259 // don't proxy proxies
260 if( strstr(idxbl->path,".proxy") ) return 0;
261 char new_path[BCTEXTLEN];
262 to_proxy_path(new_path, idxbl, new_scale);
263 // don't proxy if not readable
264 if( idxbl->is_asset && access(idxbl->path, R_OK) ) return 0;
265 // add to orig_idxbls & orig_proxies if it isn't already there.
267 for( int i = 0; !got_it && i<orig_proxies.size(); ++i )
268 got_it = !strcmp(orig_proxies[i]->path, new_path);
269 if( got_it ) return 0;
270 Assets *edl_assets = mwindow->edl->assets;
271 Asset *proxy = edl_assets->get_asset(new_path);
273 proxy = new Asset(new_path);
274 // new compression parameters
275 int64_t video_frames = idxbl->get_video_frames();
276 if( video_frames < 0 ) {
277 proxy->format = FILE_PNG;
278 proxy->png_use_alpha = 1;
279 proxy->video_length = -1;
282 proxy->copy_format(format_asset, 0);
283 proxy->video_length = video_frames;
285 proxy->folder_no = AW_PROXY_FOLDER;
286 proxy->audio_data = 0;
287 proxy->video_data = 1;
289 proxy->width = idxbl->get_w() / new_scale;
290 if( proxy->width & 1 ) ++proxy->width;
291 proxy->actual_width = proxy->width;
292 proxy->height = idxbl->get_h() / new_scale;
293 if( proxy->height & 1 ) ++proxy->height;
294 proxy->actual_height = proxy->height;
295 proxy->frame_rate = idxbl->get_frame_rate();
297 orig_proxies.append(proxy);
299 orig_idxbls.append(idxbl);
303 void ProxyRender::add_needed(Indexable *idxbl, Asset *proxy)
305 needed_idxbls.append(idxbl);
307 needed_proxies.append(proxy);
311 void ProxyRender::update_progress()
313 counter_lock->lock();
315 counter_lock->unlock();
316 progress->update(total_rendered);
319 int ProxyRender::is_canceled()
321 return progress->is_cancelled();
324 int ProxyRender::create_needed_proxies(int new_scale)
326 if( !needed_proxies.size() ) return 0;
328 failed = 0; canceled = 0;
330 // create proxy assets which don't already exist
331 int64_t total_len = 0;
332 for( int i = 0; i < needed_idxbls.size(); i++ ) {
333 total_len += needed_idxbls[i]->get_video_frames();
336 // start progress bar. MWindow is locked inside this
337 progress = mwindow->mainprogress->
338 start_progress(_("Creating proxy files..."), total_len);
340 ProxyFarm engine(mwindow, this, &needed_idxbls, &needed_proxies);
341 engine.process_packages();
342 printf("proxy: failed=%d canceled=%d\n", failed, progress->is_cancelled());
345 canceled = progress->is_cancelled();
346 progress->stop_progress();
347 delete progress; progress = 0;
349 if( failed && !canceled ) {
350 eprintf("Error making proxy.");
352 return !failed && !canceled ? 0 : 1;
356 ProxyWindow::ProxyWindow(MWindow *mwindow, ProxyDialog *dialog, int x, int y)
357 : BC_Window(_(PROGRAM_NAME ": Proxy settings"), x, y, WIDTH, HEIGHT,
360 this->mwindow = mwindow;
361 this->dialog = dialog;
365 ProxyWindow::~ProxyWindow()
367 lock_window("ProxyWindow::~ProxyWindow");
373 void ProxyWindow::create_objects()
375 lock_window("ProxyWindow::create_objects");
376 int margin = mwindow->theme->widget_border;
378 dialog->use_scaler = mwindow->edl->session->proxy_use_scaler;
379 dialog->orig_scale = mwindow->edl->session->proxy_scale;
380 dialog->auto_scale = mwindow->edl->session->proxy_auto_scale;
381 dialog->beep = mwindow->edl->session->proxy_beep;
382 dialog->new_scale = dialog->orig_scale;
383 dialog->orig_w = mwindow->edl->session->output_w;
384 dialog->orig_h = mwindow->edl->session->output_h;
385 if( !dialog->use_scaler ) {
386 dialog->orig_w *= dialog->orig_scale;
387 dialog->orig_h *= dialog->orig_scale;
391 int y = margin+yS(10);
392 add_subwindow(use_scaler = new ProxyUseScaler(this, x, y));
393 y += use_scaler->get_h() + margin;
396 add_subwindow(text = new BC_Title(x, y, _("Scale factor:")));
397 x += text->get_w() + margin;
399 int popupmenu_w = BC_PopupMenu::calculate_w(get_text_width(MEDIUMFONT, dialog->size_text[0])+xS(15));
400 add_subwindow(scale_factor = new ProxyMenu(mwindow, this, x, y, popupmenu_w, ""));
401 scale_factor->update_sizes();
402 x += scale_factor->get_w() + margin;
404 ProxyTumbler *tumbler;
405 add_subwindow(tumbler = new ProxyTumbler(mwindow, this, x, y));
406 y += tumbler->get_h() + margin;
409 add_subwindow(text = new BC_Title(x, y, _("New media dimensions: ")));
410 x += text->get_w() + margin;
411 add_subwindow(new_dimensions = new BC_Title(x, y, ""));
412 y += new_dimensions->get_h() + margin;
415 add_subwindow(text = new BC_Title(x, y, _("Active Scale: ")));
416 x += text->get_w() + margin;
417 add_subwindow(active_scale = new BC_Title(x, y, ""));
418 y += active_scale->get_h() + margin;
420 x = margin; y += yS(25);
421 format_tools = new ProxyFormatTools(mwindow, this, dialog->asset);
422 format_tools->create_objects(x, y, 0, 1, 0, 0, 0, 1, 0, 1, // skip the path
426 add_subwindow(auto_scale = new ProxyAutoScale(this, x, y));
427 y += auto_scale->get_h() + margin;
428 add_subwindow(beep_on_done = new ProxyBeepOnDone(this, x, y));
429 y += beep_on_done->get_h() + margin;
433 add_subwindow(new BC_OKButton(this));
434 add_subwindow(new BC_CancelButton(this));
439 ProxyFormatTools::ProxyFormatTools(MWindow *mwindow, ProxyWindow *pwindow, Asset *asset)
440 : FormatTools(mwindow, pwindow, asset)
442 this->pwindow = pwindow;
445 void ProxyFormatTools::update_format()
447 asset->save_defaults(mwindow->defaults, "PROXY_", 1, 1, 0, 0, 0);
448 FormatTools::update_format();
449 pwindow->use_scaler->update();
452 void ProxyWindow::update()
454 char string[BCSTRLEN];
455 int new_w = dialog->orig_w / dialog->new_scale;
456 if( new_w & 1 ) ++new_w;
457 int new_h = dialog->orig_h / dialog->new_scale;
458 if( new_h & 1 ) ++new_h;
459 sprintf(string, "%dx%d", new_w, new_h);
460 new_dimensions->update(string);
461 dialog->scale_to_text(string, dialog->new_scale);
462 scale_factor->set_text(string);
463 use_scaler->update();
464 auto_scale->update();
465 int scale = mwindow->edl->session->proxy_scale;
466 if( scale == 1 ) scale = mwindow->edl->session->proxy_disabled_scale;
467 sprintf(string, scale>1 ? "1/%d" : "%d", scale);
468 active_scale->update(string);
472 ProxyUseScaler::ProxyUseScaler(ProxyWindow *pwindow, int x, int y)
473 : BC_CheckBox(x, y, pwindow->dialog->use_scaler, _("Use scaler (FFMPEG only)"))
475 this->pwindow = pwindow;
478 void ProxyUseScaler::update()
480 ProxyDialog *dialog = pwindow->dialog;
481 if( dialog->asset->format != FILE_FFMPEG ) dialog->use_scaler = 0;
482 BC_CheckBox::update(dialog->use_scaler);
483 int scaler_avail = dialog->asset->format == FILE_FFMPEG ? 1 : 0;
484 if( !scaler_avail && enabled ) disable();
485 if( scaler_avail && !enabled ) enable();
488 int ProxyUseScaler::handle_event()
490 pwindow->dialog->new_scale = 1;
491 pwindow->dialog->use_scaler = get_value();
492 pwindow->scale_factor->update_sizes();
497 ProxyAutoScale::ProxyAutoScale(ProxyWindow *pwindow, int x, int y)
498 : BC_CheckBox(x, y, pwindow->dialog->auto_scale, _("Auto proxy/scale media loads"))
500 this->pwindow = pwindow;
503 void ProxyAutoScale::update()
505 ProxyDialog *dialog = pwindow->dialog;
506 if( dialog->new_scale == 1 ) dialog->auto_scale = 0;
507 BC_CheckBox::update(dialog->auto_scale);
508 int can_auto_proxy = dialog->new_scale != 1 ? 1 : 0;
509 if( !can_auto_proxy && enabled ) disable();
510 if( can_auto_proxy && !enabled ) enable();
513 int ProxyAutoScale::handle_event()
515 pwindow->dialog->auto_scale = get_value();
520 ProxyBeepOnDone::ProxyBeepOnDone(ProxyWindow *pwindow, int x, int y)
521 : BC_CheckBox(x, y, pwindow->dialog->beep, _("Beep on done"))
523 this->pwindow = pwindow;
526 int ProxyBeepOnDone::handle_event()
528 pwindow->dialog->beep = get_value();
534 ProxyMenu::ProxyMenu(MWindow *mwindow, ProxyWindow *pwindow,
535 int x, int y, int w, const char *text)
536 : BC_PopupMenu(x, y, w, text, 1)
538 this->mwindow = mwindow;
539 this->pwindow = pwindow;
542 void ProxyMenu::update_sizes()
544 while( total_items() > 0 ) del_item(0);
545 ProxyDialog *dialog = pwindow->dialog;
546 dialog->calculate_sizes();
547 for( int i=0; i < dialog->total_sizes; i++ )
548 add_item(new BC_MenuItem(dialog->size_text[i]));
551 int ProxyMenu::handle_event()
553 ProxyDialog *dialog = pwindow->dialog;
554 for( int i = 0; i < dialog->total_sizes; i++ ) {
555 if( !strcmp(get_text(), pwindow->dialog->size_text[i]) ) {
556 dialog->new_scale = pwindow->dialog->size_factors[i];
565 ProxyTumbler::ProxyTumbler(MWindow *mwindow, ProxyWindow *pwindow, int x, int y)
566 : BC_Tumbler(x, y, 0)
568 this->mwindow = mwindow;
569 this->pwindow = pwindow;
572 int ProxyTumbler::handle_up_event()
574 if( pwindow->dialog->new_scale > 1 ) {
576 for( i = 0; i < pwindow->dialog->total_sizes; i++ ) {
577 if( pwindow->dialog->new_scale == pwindow->dialog->size_factors[i] ) {
579 pwindow->dialog->new_scale = pwindow->dialog->size_factors[i];
589 int ProxyTumbler::handle_down_event()
592 for( i = 0; i < pwindow->dialog->total_sizes - 1; i++ ) {
593 if( pwindow->dialog->new_scale == pwindow->dialog->size_factors[i] ) {
595 pwindow->dialog->new_scale = pwindow->dialog->size_factors[i];
606 ProxyPackage::ProxyPackage()
611 ProxyClient::ProxyClient(MWindow *mwindow,
612 ProxyRender *proxy_render, ProxyFarm *server)
615 this->mwindow = mwindow;
616 this->proxy_render = proxy_render;
621 ProxyClient::~ProxyClient()
623 delete render_engine;
628 void ProxyClient::process_package(LoadPackage *ptr)
630 if( proxy_render->failed ) return;
631 if( proxy_render->is_canceled() ) return;
633 EDL *edl = mwindow->edl;
634 Preferences *preferences = mwindow->preferences;
635 ProxyPackage *package = (ProxyPackage*)ptr;
636 Indexable *orig = package->orig_idxbl;
637 Asset *proxy = package->proxy_asset;
638 //printf("%s %s\n", orig->path, proxy->path);
639 VRender *vrender = 0;
640 int jobs = proxy_render->needed_proxies.size();
641 int processors = preferences->project_smp / jobs + 1, result = 0;
643 // each cpu should process at least about 1 MB, or it thrashes
644 int size = edl->session->output_w * edl->session->output_h * 4;
645 int cpus = size / 0x100000 + 1;
646 if( processors > cpus ) processors = cpus;
648 if( orig->is_asset ) {
650 src_file->set_processors(processors);
651 src_file->set_preload(edl->session->playback_preload);
652 src_file->set_subtitle(edl->session->decode_subtitles ?
653 edl->session->subtitle_number : -1);
654 src_file->set_interpolate_raw(edl->session->interpolate_raw);
655 src_file->set_white_balance_raw(edl->session->white_balance_raw);
656 if( src_file->open_file(preferences, (Asset*)orig, 1, 0) != FILE_OK )
660 TransportCommand command;
661 command.command = CURRENT_FRAME;
662 command.get_edl()->copy_all((EDL *)orig);
663 command.change_type = CHANGE_ALL;
664 command.realtime = 0;
665 render_engine = new RenderEngine(0, preferences, 0, 0);
666 render_engine->set_vcache(video_cache = new CICache(preferences));
667 render_engine->arm_command(&command);
668 if( !(vrender = render_engine->vrender) )
672 // go to the next asset if the reader fails
673 // proxy_render->failed = 1;
678 dst_file.set_processors(processors);
679 result = dst_file.open_file(preferences, proxy, 0, 1);
681 proxy_render->failed = 1;
682 ::remove(proxy->path);
686 dst_file.start_video_thread(1, edl->session->color_model,
687 processors > 1 ? 2 : 1, 0);
689 int src_w = orig->get_w(), src_h = orig->get_h();
690 VFrame src_frame(src_w,src_h, edl->session->color_model);
692 OverlayFrame scaler(processors);
693 int64_t video_length = orig->get_video_frames();
694 if( video_length < 0 ) video_length = 1;
696 for( int64_t i=0; i<video_length &&
697 !proxy_render->failed && !proxy_render->is_canceled(); ++i ) {
698 if( orig->is_asset ) {
699 src_file->set_video_position(i, 0);
700 result = src_file->read_frame(&src_frame);
703 result = vrender->process_buffer(&src_frame, i, 0);
704 //printf("result=%d\n", result);
707 // go to the next asset if the reader fails
708 // proxy_render->failed = 1;
712 // have to write after getting the video buffer or it locks up
713 VFrame ***dst_frames = dst_file.get_video_buffer();
714 VFrame *dst_frame = dst_frames[0][0];
715 int dst_w = dst_frame->get_w(), dst_h = dst_frame->get_h();
716 scaler.overlay(dst_frame, &src_frame,
717 0,0, src_w,src_h, 0,0, dst_w,dst_h,
718 1.0, TRANSFER_REPLACE, NEAREST_NEIGHBOR);
719 result = dst_file.write_video_buffer(1);
721 // only fail if the writer fails
722 proxy_render->failed = 1;
725 proxy_render->update_progress();
727 if( !proxy_render->failed && !proxy_render->is_canceled() ) {
728 Asset *asset = edl->assets->update(proxy);
729 asset->proxy_scale = proxy_render->asset_scale;
730 int scale = asset->proxy_scale;
731 if( !scale ) scale = 1;
732 asset->width = asset->actual_width * scale;
733 asset->height = asset->actual_height * scale;
734 mwindow->mainindexes->add_next_asset(0, asset);
735 mwindow->mainindexes->start_build();
738 ::remove(proxy->path);
742 ProxyFarm::ProxyFarm(MWindow *mwindow, ProxyRender *proxy_render,
743 ArrayList<Indexable*> *orig_idxbls,
744 ArrayList<Asset*> *proxy_assets)
745 : LoadServer(MIN(mwindow->preferences->processors, proxy_assets->size()),
746 proxy_assets->size())
748 this->mwindow = mwindow;
749 this->proxy_render = proxy_render;
750 this->orig_idxbls = orig_idxbls;
751 this->proxy_assets = proxy_assets;
754 void ProxyFarm::init_packages()
756 for( int i = 0; i < get_total_packages(); i++ ) {
757 ProxyPackage *package = (ProxyPackage*)get_package(i);
758 package->proxy_asset = proxy_assets->get(i);
759 package->orig_idxbl = orig_idxbls->get(i);
763 LoadClient* ProxyFarm::new_client()
765 return new ProxyClient(mwindow, proxy_render, this);
768 LoadPackage* ProxyFarm::new_package()
770 return new ProxyPackage;
774 ProxyBeep::ProxyBeep(MWindow *mwindow)
777 this->mwindow = mwindow;
778 audio = new AudioDevice(mwindow);
783 ProxyBeep::~ProxyBeep()
789 void ProxyBeep::run()
792 int64_t bfrsz = BEEP_SAMPLE_RATE;
793 EDL *edl = mwindow->edl;
794 EDLSession *session = edl->session;
795 AudioOutConfig *aconfig = session->playback_config->aconfig;
796 audio->open_output(aconfig, BEEP_SAMPLE_RATE, bfrsz, channels, 0);
797 audio->start_playback();
799 double out0[bfrsz], out1[bfrsz], *out[2] = { out0, out1 };
800 const double two_pi = 2*M_PI;
801 int64_t audio_len = BEEP_SAMPLE_RATE * secs;
802 const double dt = two_pi * freq/BEEP_SAMPLE_RATE;
807 while( !interrupted ) {
808 int len = audio_len - audio_pos;
809 if( len <= 0 ) break;
810 if( len > bfrsz ) len = bfrsz;
812 for( int i=0; i<len; ++i,++k,th+=dt ) {
813 double t = th - two_pi;
815 out0[i] = out1[i] = sin(th) * gain;
817 audio->write_buffer(out, channels, len);
822 audio->set_last_buffer();
823 audio->stop_audio(interrupted ? 0 : 1);
829 void ProxyBeep::start()
831 if( running() ) return;
837 void ProxyBeep::stop(int wait)
839 if( running() && !interrupted ) {
841 audio->stop_audio(wait);
846 void ProxyBeep::tone(double freq, double secs, double gain)