From 64f9829b5636b493bae132064cf33dc57944796c Mon Sep 17 00:00:00 2001 From: Robin Gareus Date: Fri, 24 Jun 2022 19:55:17 +0200 Subject: [PATCH] AudioBackends: ignore setting latency of invalid port(s) --- libs/backends/alsa/alsa_audiobackend.cc | 1 + libs/backends/dummy/dummy_audiobackend.cc | 1 + libs/backends/portaudio/portaudio_backend.cc | 1 + 3 files changed, 3 insertions(+) diff --git a/libs/backends/alsa/alsa_audiobackend.cc b/libs/backends/alsa/alsa_audiobackend.cc index 111108af1a..4d21c828bc 100644 --- a/libs/backends/alsa/alsa_audiobackend.cc +++ b/libs/backends/alsa/alsa_audiobackend.cc @@ -1732,6 +1732,7 @@ AlsaAudioBackend::set_latency_range (PortEngine::PortHandle port_handle, bool fo BackendPortPtr port = boost::dynamic_pointer_cast (port_handle); if (!valid_port (port)) { DEBUG_TRACE (PBD::DEBUG::BackendPorts, "AlsaPort::set_latency_range (): invalid port."); + return; } port->set_latency_range (latency_range, for_playback); } diff --git a/libs/backends/dummy/dummy_audiobackend.cc b/libs/backends/dummy/dummy_audiobackend.cc index 7f3abd8dee..8c96b2ff59 100644 --- a/libs/backends/dummy/dummy_audiobackend.cc +++ b/libs/backends/dummy/dummy_audiobackend.cc @@ -873,6 +873,7 @@ DummyAudioBackend::set_latency_range (PortEngine::PortHandle port_handle, bool f BackendPortPtr port = boost::dynamic_pointer_cast (port_handle); if (!valid_port (port)) { DEBUG_TRACE (PBD::DEBUG::BackendPorts, "DummyPort::set_latency_range (): invalid port."); + return; } port->set_latency_range (latency_range, for_playback); } diff --git a/libs/backends/portaudio/portaudio_backend.cc b/libs/backends/portaudio/portaudio_backend.cc index f0d2f5e158..bd251d87fa 100644 --- a/libs/backends/portaudio/portaudio_backend.cc +++ b/libs/backends/portaudio/portaudio_backend.cc @@ -1407,6 +1407,7 @@ PortAudioBackend::set_latency_range (PortEngine::PortHandle port_handle, bool fo boost::shared_ptr port = boost::dynamic_pointer_cast(port_handle); if (!valid_port (port)) { DEBUG_PORTS("BackendPort::set_latency_range (): invalid port.\n"); + return; } port->set_latency_range (latency_range, for_playback); }