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()
100 return (command == SINGLE_FRAME_FWD ||
101 command == SINGLE_FRAME_REWIND ||
102 command == CURRENT_FRAME);
106 int TransportCommand::get_direction()
110 case SINGLE_FRAME_FWD:
117 case SINGLE_FRAME_REWIND:
129 float TransportCommand::get_speed()
139 case SINGLE_FRAME_FWD:
140 case SINGLE_FRAME_REWIND:
152 // Assume starting without pause
153 void TransportCommand::set_playback_range(EDL *edl, int use_inout, int toggle_audio)
155 if(!edl) edl = this->edl;
162 start_position = edl->local_session->get_selectionstart(1);
163 if(EQUIV(edl->local_session->get_selectionend(1), edl->local_session->get_selectionstart(1)))
164 end_position = edl->tracks->total_playable_length();
166 end_position = edl->local_session->get_selectionend(1);
167 // this prevents a crash if start position is after the loop when playing forwards
168 if (edl->local_session->loop_playback &&
169 start_position > edl->local_session->loop_end)
171 start_position = edl->local_session->loop_start;
178 end_position = edl->local_session->get_selectionend(1);
179 if(EQUIV(edl->local_session->get_selectionend(1), edl->local_session->get_selectionstart(1)))
182 start_position = edl->local_session->get_selectionstart(1);
184 // this prevents a crash if start position is before the loop when playing backwards
185 if (edl->local_session->loop_playback &&
186 end_position <= edl->local_session->loop_start)
188 end_position = edl->local_session->loop_end;
193 case SINGLE_FRAME_FWD:
194 start_position = edl->local_session->get_selectionstart(1);
195 end_position = start_position +
197 edl->session->frame_rate;
200 case SINGLE_FRAME_REWIND:
201 start_position = edl->local_session->get_selectionend(1);
202 end_position = start_position -
204 edl->session->frame_rate;
211 if(edl->local_session->inpoint_valid())
212 start_position = edl->local_session->get_inpoint();
213 if(edl->local_session->outpoint_valid())
214 end_position = edl->local_session->get_outpoint();
217 switch(get_direction())
220 playbackstart = start_position;
224 playbackstart = end_position;
228 audio_toggle = toggle_audio;
231 void TransportCommand::playback_range_adjust_inout()
233 if(edl->local_session->inpoint_valid() ||
234 edl->local_session->outpoint_valid())
236 playback_range_inout();
240 void TransportCommand::playback_range_inout()
242 if(edl->local_session->inpoint_valid())
243 start_position = edl->local_session->get_inpoint();
247 if(edl->local_session->outpoint_valid())
248 end_position = edl->local_session->get_outpoint();
250 end_position = edl->tracks->total_playable_length();
253 void TransportCommand::playback_range_project()
256 end_position = edl->tracks->total_playable_length();
259 void TransportCommand::playback_range_1frame()
261 start_position = end_position = edl->local_session->get_selectionstart(1);
262 if( edl->session->frame_rate > 0 ) end_position += 1./edl->session->frame_rate;
266 TransportQue::TransportQue()
268 input_lock = new Condition(1, "TransportQue::input_lock");
269 output_lock = new Condition(0, "TransportQue::output_lock", 1);
272 TransportQue::~TransportQue()
278 int TransportQue::send_command(int command, int change_type, EDL *new_edl,
279 int realtime, int resume, int use_inout, int toggle_audio)
281 input_lock->lock("TransportQue::send_command 1");
282 this->command.command = command;
283 // Mutually exclusive operation
284 this->command.change_type |= change_type;
285 this->command.realtime = realtime;
286 this->command.resume = resume;
290 // Just change the EDL if the change requires it because renderengine
291 // structures won't point to the new EDL otherwise and because copying the
292 // EDL for every cursor movement is slow.
293 if(change_type == CHANGE_EDL ||
294 (uint32_t)change_type == CHANGE_ALL)
297 this->command.get_edl()->copy_all(new_edl);
300 if(change_type == CHANGE_PARAMS)
302 this->command.get_edl()->synchronize_params(new_edl);
305 // Set playback range
306 this->command.set_playback_range(new_edl, use_inout, toggle_audio);
309 input_lock->unlock();
311 output_lock->unlock();
315 void TransportQue::update_change_type(int change_type)
317 input_lock->lock("TransportQue::update_change_type");
318 this->command.change_type |= change_type;
319 input_lock->unlock();