Propagate Latency to backend/system ports

Set accumulated capture-latency for physical-outputs
and accumulated playback-latency for physical-inputs
after Ardour is done setting all non-physical port latencies.

This will be needed for latency-compensation of the complete graph.

1 files changed, 4 insertions, 11 deletions

diff --git a/libs/backends/alsa/alsa_audiobackend.h b/libs/backends/alsa/alsa_audiobackend.h
index 2cbc3b04a3..f6887fe346 100644
--- a/libs/backends/alsa/alsa_audiobackend.h
+++ b/libs/backends/alsa/alsa_audiobackend.h
@@ -99,17 +99,9 @@ class AlsaPort {
 			return for_playback ? _playback_latency_range : _capture_latency_range;
 		}
 
-		void set_latency_range (const LatencyRange &latency_range, bool for_playback)
-		{
-			if (for_playback)
-			{
-				_playback_latency_range = latency_range;
-			}
-			else
-			{
-				_capture_latency_range = latency_range;
-			}
-		}
+		void set_latency_range (const LatencyRange &latency_range, bool for_playback);
+
+		void update_connected_latency (bool for_playback);
 
 	private:
 		AlsaAudioBackend &_alsa_backend;
@@ -419,6 +411,7 @@ class AlsaAudioBackend : public AudioBackend {
 		int register_system_audio_ports ();
 		int register_system_midi_ports (const std::string device = "");
 		void unregister_ports (bool system_only = false);
+		void update_system_port_latecies ();
 
 		std::vector<AlsaPort *> _system_inputs;
 		std::vector<AlsaPort *> _system_outputs;