From 2e90a58611c0f3e29908f8e922fde8da7e164573 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Mon, 12 Jul 2021 02:11:35 +0200
Subject: [PATCH] Fix pre-roll rec trim near 00:00:00

---
 libs/ardour/session_transport.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libs/ardour/session_transport.cc b/libs/ardour/session_transport.cc
index dd0561f3d3..dcad949f2e 100644
--- a/libs/ardour/session_transport.cc
+++ b/libs/ardour/session_transport.cc
@@ -908,7 +908,7 @@ Session::request_preroll_record_trim (samplepos_t rec_in, samplecnt_t preroll)
 	config.set_punch_out (false);
 
 	samplepos_t pos = std::max ((samplepos_t)0, rec_in - preroll);
-	_preroll_record_trim_len = preroll;
+	_preroll_record_trim_len = rec_in - pos;
 	maybe_enable_record ();
 	request_locate (pos, MustRoll);
 	set_requested_return_sample (rec_in);