96ce9c304e
towards fixing #6238 and #6096. GUI thread: #2 Glib::Threads::Mutex::Lock::Lock #3 Evoral::ControlList::eval #4 Evoral::Control::get_double #5 ARDOUR::AutomationControl::get_value #6 ProcessorEntry::Control::control_changed .. #15 PBD::Timer::timeout_handler at the same time: Audio Thread (try-lock, fails) #0 Evoral::Curve::rt_safe_get_vector #1 ARDOUR::Amp::setup_gain_automation #2 ARDOUR::Route::process_output_buffers Due to the failed try-lock.. AMP::_apply_gain_automation is false. and Amp::run() uses a different gain factor. -> click.
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http://ardour.org/development.html