int curr_command = this->command->command;
int curr_single_frame = TransportCommand::single_frame(curr_command);
int curr_audio = this->command->toggle_audio ?
!curr_single_frame : curr_single_frame;
int single_frame = TransportCommand::single_frame(command);
int next_audio = next_command->toggle_audio ? !single_frame : single_frame;
int curr_command = this->command->command;
int curr_single_frame = TransportCommand::single_frame(curr_command);
int curr_audio = this->command->toggle_audio ?
!curr_single_frame : curr_single_frame;
int single_frame = TransportCommand::single_frame(command);
int next_audio = next_command->toggle_audio ? !single_frame : single_frame;