- if( !get_edl() ) return;
-
-// Stop requires transferring the output buffer to a refresh buffer.
- int do_stop = 0;
- int resume = 0;
-//printf("PlayTransport::handle_transport 1 %d\n", command);
- int prev_command = engine->command->command;
- int prev_direction = engine->command->get_direction();
- int prev_single_frame = engine->command->single_frame();
- int prev_audio = engine->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:
- engine->que->send_command(STOP, CHANGE_NONE, 0, 0, 0, 0);
- engine->interrupt_playback(wait_tracking);
- resume = 1;
-// fall through
- case STOP:
- case COMMAND_NONE:
- case SINGLE_FRAME_FWD:
- case SINGLE_FRAME_REWIND:
-// Start from scratch
- engine->que->send_command(command, CHANGE_NONE, get_edl(),
- 1, resume, use_inout, toggle_audio);
- break;
- }
- break;
-
-// Commands that stop
- case STOP:
- do_stop = 1;
- break;
-
- case REWIND:
- case GOTO_END:
- engine->que->send_command(STOP, CHANGE_NONE, 0, 0, 0, 0);
- engine->interrupt_playback(wait_tracking);
- break;
- }
-
- if( do_stop ) {
- engine->que->send_command(STOP, CHANGE_NONE, 0, 0, 0, 0);
- engine->interrupt_playback(wait_tracking);
-// This is necessary to get an OpenGL output buffer
-// printf("PlayTransport::handle_transport 2 update_refresh=%d prev_command=%d prev_direction=%d\n",
-// update_refresh, prev_command, prev_direction);
- if( !prev_single_frame && update_refresh &&
- prev_command != STOP && prev_command != COMMAND_NONE ) {
- int command = (prev_direction == PLAY_FORWARD) ?
- SINGLE_FRAME_REWIND : SINGLE_FRAME_FWD;
- engine->que->send_command(command,
- CHANGE_NONE, get_edl(), 1, 0, 0);
- }
- }