mixer

[goodguy/history.git] / cinelerra-5.1 / cinelerra / playbackengine.C

diff --git a/cinelerra-5.1/cinelerra/playbackengine.C b/cinelerra-5.1/cinelerra/playbackengine.C
index 27d177c562ef0b1971579221d126ae52db42a9c7..0918ead4e449ae1232459214f575698973ffdb2c 100644 (file)
--- a/cinelerra-5.1/cinelerra/playbackengine.C
+++ b/cinelerra-5.1/cinelerra/playbackengine.C
@@ -351,14 +351,11 @@ void PlaybackEngine::run()
 {
        start_lock->unlock();
 
-       do
-       {
+       while( !done ) {
 // Wait for current command to finish
                que->output_lock->lock("PlaybackEngine::run");
-
                wait_render_engine();
 
-
 // Read the new command
                que->input_lock->lock("PlaybackEngine::run");
                if(done) return;
@@ -366,61 +363,130 @@ void PlaybackEngine::run()
                command->copy_from(&que->command);
                que->command.reset();
                que->input_lock->unlock();
-
 //printf("PlaybackEngine::run 1 %d\n", command->command);
 
-
-               switch(command->command)
-               {
+               switch( command->command ) {
 // Parameter change only
-                       case COMMAND_NONE:
-//                             command->command = last_command;
-                               perform_change();
-                               break;
-
-                       case PAUSE:
-                               init_cursor(0);
-                               pause_lock->lock("PlaybackEngine::run");
-                               stop_cursor();
-                               break;
-
-                       case STOP:
+               case COMMAND_NONE:
+//                     command->command = last_command;
+                       perform_change();
+                       break;
+
+               case PAUSE:
+                       init_cursor(0);
+                       pause_lock->lock("PlaybackEngine::run");
+                       stop_cursor();
+                       break;
+
+               case STOP:
 // No changing
-                               break;
+                       break;
 
-                       case CURRENT_FRAME:
-                               last_command = command->command;
-                               perform_change();
-                               arm_render_engine();
+               case CURRENT_FRAME:
+                       last_command = command->command;
+                       perform_change();
+                       arm_render_engine();
 // Dispatch the command
-                               start_render_engine();
-                               break;
-
-                       default:
-                               last_command = command->command;
-                               is_playing_back = 1;
-                               if(command->command == SINGLE_FRAME_FWD ||
-                                       command->command == SINGLE_FRAME_REWIND)
-                               {
-                                       command->playbackstart = get_tracking_position();
-                               }
+                       start_render_engine();
+                       break;
 
-                               perform_change();
-                               arm_render_engine();
+               case SINGLE_FRAME_FWD:
+               case SINGLE_FRAME_REWIND:
+// fall through
+               default:
+                       last_command = command->command;
+                       is_playing_back = 1;
+
+                       perform_change();
+                       arm_render_engine();
 
 // Start tracking after arming so the tracking position doesn't change.
 // The tracking for a single frame command occurs during PAUSE
-                               init_tracking();
+                       init_tracking();
 
 // Dispatch the command
-                               start_render_engine();
-                               break;
+                       start_render_engine();
+                       break;
                }
 
 
 //printf("PlaybackEngine::run 100\n");
-       }while(!done);
+       }
+}
+
+
+void PlaybackEngine::stop_playback()
+{
+       que->send_command(STOP, CHANGE_NONE, 0, 0);
+       interrupt_playback(1);
+       renderengine_lock->lock("PlaybackEngine::stop_playback");
+       if(render_engine)
+               render_engine->wait_done();
+       renderengine_lock->unlock();
 }
 
 
+void PlaybackEngine::issue_command(EDL *edl, int command, int wait_tracking,
+               int use_inout, int update_refresh, int toggle_audio)
+{
+//printf("PlayTransport::handle_transport 1 %d\n", command);
+// Stop requires transferring the output buffer to a refresh buffer.
+       int do_stop = 0, resume = 0;
+       int prev_command = this->command->command;
+       int prev_single_frame = this->command->single_frame();
+       int prev_audio = this->command->audio_toggle ?
+                !prev_single_frame : prev_single_frame;
+       int cur_single_frame = TransportCommand::single_frame(command);
+       int cur_audio = toggle_audio ?
+                !cur_single_frame : cur_single_frame;
+
+// Dispatch command
+       switch(command) {
+       case FAST_REWIND:       // Commands that play back
+       case NORMAL_REWIND:
+       case SLOW_REWIND:
+       case SINGLE_FRAME_REWIND:
+       case SINGLE_FRAME_FWD:
+       case SLOW_FWD:
+       case NORMAL_FWD:
+       case FAST_FWD:
+               if( !prev_single_frame &&
+                   prev_command == command &&
+                   cur_audio == prev_audio ) {
+// Same direction pressed twice and no change in audio state,  Stop
+                       do_stop = 1;
+                       break;
+               }
+// Resume or change direction
+               switch( prev_command ) {
+               default:
+                       que->send_command(STOP, CHANGE_NONE, 0, 0);
+                       interrupt_playback(wait_tracking);
+                       resume = 1;
+// fall through
+               case STOP:
+               case COMMAND_NONE:
+               case SINGLE_FRAME_FWD:
+               case SINGLE_FRAME_REWIND:
+// Start from scratch
+                       que->send_command(command, CHANGE_NONE, edl,
+                               1, resume, use_inout, toggle_audio,
+                               mwindow->preferences->forward_render_displacement);
+                       break;
+               }
+               break;
+
+// Commands that stop
+       case STOP:
+       case REWIND:
+       case GOTO_END:
+               do_stop = 1;
+               break;
+       }
+
+       if( do_stop ) {
+               que->send_command(STOP, CHANGE_NONE, 0, 0);
+               interrupt_playback(wait_tracking);
+       }
+}