4 * Copyright (C) 2008 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
22 #include "bcsignals.h"
24 #include "condition.h"
26 #include "edlsession.h"
27 #include "localsession.h"
29 #include "transportque.h"
31 TransportCommand::TransportCommand()
33 // In rendering we want a master EDL so settings don't get clobbered
34 // in the middle of a job.
36 edl->create_objects();
42 TransportCommand::~TransportCommand()
44 edl->Garbage::remove_user();
47 void TransportCommand::reset()
56 // Don't reset the change type for commands which don't perform the change
57 if(command != STOP) change_type = 0;
58 command = COMMAND_NONE;
61 EDL* TransportCommand::get_edl()
66 void TransportCommand::delete_edl()
68 edl->Garbage::remove_user();
72 void TransportCommand::new_edl()
75 edl->create_objects();
79 void TransportCommand::copy_from(TransportCommand *command)
81 this->command = command->command;
82 this->change_type = command->change_type;
83 this->edl->copy_all(command->edl);
84 this->start_position = command->start_position;
85 this->end_position = command->end_position;
86 this->playbackstart = command->playbackstart;
87 this->realtime = command->realtime;
88 this->resume = command->resume;
89 this->audio_toggle = command->audio_toggle;
92 TransportCommand& TransportCommand::operator=(TransportCommand &command)
98 int TransportCommand::single_frame(int command)
100 return (command == SINGLE_FRAME_FWD ||
101 command == SINGLE_FRAME_REWIND ||
102 command == CURRENT_FRAME);
104 int TransportCommand::single_frame()
106 return single_frame(command);
110 int TransportCommand::get_direction(int command)
113 case SINGLE_FRAME_FWD:
120 case SINGLE_FRAME_REWIND:
131 int TransportCommand::get_direction()
133 return get_direction(command);
136 float TransportCommand::get_speed(int command)
145 case SINGLE_FRAME_FWD:
146 case SINGLE_FRAME_REWIND:
157 float TransportCommand::get_speed()
159 return get_speed(command);
162 // Assume starting without pause
163 void TransportCommand::set_playback_range(EDL *edl, int use_inout, int toggle_audio)
165 if(!edl) edl = this->edl;
172 start_position = edl->local_session->get_selectionstart(1);
173 if(EQUIV(edl->local_session->get_selectionend(1), edl->local_session->get_selectionstart(1)))
174 end_position = edl->tracks->total_playable_length();
176 end_position = edl->local_session->get_selectionend(1);
177 // this prevents a crash if start position is after the loop when playing forwards
178 if (edl->local_session->loop_playback &&
179 start_position > edl->local_session->loop_end)
181 start_position = edl->local_session->loop_start;
188 end_position = edl->local_session->get_selectionend(1);
189 if(EQUIV(edl->local_session->get_selectionend(1), edl->local_session->get_selectionstart(1)))
192 start_position = edl->local_session->get_selectionstart(1);
194 // this prevents a crash if start position is before the loop when playing backwards
195 if (edl->local_session->loop_playback &&
196 end_position <= edl->local_session->loop_start)
198 end_position = edl->local_session->loop_end;
203 case SINGLE_FRAME_FWD:
204 start_position = edl->local_session->get_selectionstart(1);
205 end_position = start_position + 1.0 / edl->session->frame_rate;
208 case SINGLE_FRAME_REWIND:
209 end_position = edl->local_session->get_selectionend(1);
210 start_position = end_position - 1.0 / edl->session->frame_rate;
217 if(edl->local_session->inpoint_valid())
218 start_position = edl->local_session->get_inpoint();
219 if(edl->local_session->outpoint_valid())
220 end_position = edl->local_session->get_outpoint();
223 switch(get_direction())
226 playbackstart = start_position;
230 playbackstart = end_position;
234 audio_toggle = toggle_audio;
237 void TransportCommand::playback_range_adjust_inout()
239 if(edl->local_session->inpoint_valid() ||
240 edl->local_session->outpoint_valid())
242 playback_range_inout();
246 void TransportCommand::playback_range_inout()
248 if(edl->local_session->inpoint_valid())
249 start_position = edl->local_session->get_inpoint();
253 if(edl->local_session->outpoint_valid())
254 end_position = edl->local_session->get_outpoint();
256 end_position = edl->tracks->total_playable_length();
259 void TransportCommand::playback_range_project()
262 end_position = edl->tracks->total_playable_length();
265 void TransportCommand::playback_range_1frame()
267 start_position = end_position = edl->local_session->get_selectionstart(1);
268 if( edl->session->frame_rate > 0 ) end_position += 1./edl->session->frame_rate;
272 TransportQue::TransportQue()
274 input_lock = new Condition(1, "TransportQue::input_lock");
275 output_lock = new Condition(0, "TransportQue::output_lock", 1);
278 TransportQue::~TransportQue()
284 int TransportQue::send_command(int command, int change_type, EDL *new_edl,
285 int realtime, int resume, int use_inout, int toggle_audio)
287 input_lock->lock("TransportQue::send_command 1");
288 this->command.command = command;
289 // Mutually exclusive operation
290 this->command.change_type |= change_type;
291 this->command.realtime = realtime;
292 this->command.resume = resume;
296 // Just change the EDL if the change requires it because renderengine
297 // structures won't point to the new EDL otherwise and because copying the
298 // EDL for every cursor movement is slow.
299 if(change_type == CHANGE_EDL ||
300 (uint32_t)change_type == CHANGE_ALL)
303 this->command.get_edl()->copy_all(new_edl);
306 if(change_type == CHANGE_PARAMS)
308 this->command.get_edl()->synchronize_params(new_edl);
311 // Set playback range
312 this->command.set_playback_range(new_edl, use_inout, toggle_audio);
315 input_lock->unlock();
317 output_lock->unlock();
321 void TransportQue::update_change_type(int change_type)
323 input_lock->lock("TransportQue::update_change_type");
324 this->command.change_type |= change_type;
325 input_lock->unlock();