From b031a7a984a28bf0b415ebf101cf87269a9fec41 Mon Sep 17 00:00:00 2001
From: Stephan Sundermann <stephansundermann@gmail.com>
Date: Thu, 24 Oct 2024 21:03:33 +0200
Subject: [PATCH] vtcapture: Relax sleeping

Reduces CPU consumption with vsync enabled. On my TV this reduced CPU usage by half by giving up a bit of precision. Also throttle when currentCaptureBuffInfo fails (usually when there is no video)
---
 src/backends/libvtcapture.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/backends/libvtcapture.cpp b/src/backends/libvtcapture.cpp
index 69ed7d7..7cce4e8 100644
--- a/src/backends/libvtcapture.cpp
+++ b/src/backends/libvtcapture.cpp
@@ -266,7 +266,7 @@ int capture_wait(void* state)
             DBG("Returning with video capture stop (-99), to get restarted in next routine.");
             return -99; // Restart video capture
         } else if (ret != 0) {
-
+            usleep(100000);
             ERR("vtCapture_currentCaptureBuffInfo() failed: %d", ret);
             return -1;
         }
@@ -280,7 +280,7 @@ int capture_wait(void* state)
             WARN("captureCurrentBuffInfo() never returned a new plane!");
             return -99; // Restart video capture
         }
-        usleep(100);
+        usleep(1000);
     }
 
     self->curr_buff = self->buff.start_addr0;