Method decode_task_proc

DSView/pv/sigsession.cpp:1977–2008

the decode task thread proc

    // the decode task thread proc
    void SigSession::decode_task_proc()
    {
        dsv_info("------->decode thread start");
        auto task = get_top_decode_task();

        while (task != NULL)
        {
            if (!task->_delete_flag)
            {
                task->decoder()->begin_decode_work();
            }

            if (task->_delete_flag)
            {
                dsv_info("destroy a decoder in task thread");

                DESTROY_QT_LATER(task);
                std::this_thread::sleep_for(std::chrono::milliseconds(100));
                if (!_bClose)
                {
                    signals_changed();
                }
            }

            task = get_top_decode_task();
        }

        _view_data->get_logic()->decode_end();

        dsv_info("------->decode thread end");
        _is_decoding = false;        
    }

    Snapshot *SigSession::get_signal_snapshot()
    {