From f630eecd84c3d19b0467f0c6d224fba81f51f41d Mon Sep 17 00:00:00 2001
From: Hugo Villeneuve <hugo@hugovil.com>
Date: Sat, 7 Oct 2023 12:39:49 -0400
Subject: [PATCH] Fix ffmpeg input bug

---
 fgen.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fgen.sh b/fgen.sh
index df952fa..f7015ed 100755
--- a/fgen.sh
+++ b/fgen.sh
@@ -20,7 +20,11 @@ trames=1
 dry_run=0
 
 SED=sed
-FFMPEG_OPTS="-hide_banner -loglevel error -y"
+
+# When reading a file line by line, if a command inside the loop
+# also reads stdin, it can exhaust the input file.
+# -nostdin: disable ffmpeg interaction on standard input:
+FFMPEG_OPTS="-hide_banner -loglevel error -y -nostdin"
 
 # -limit memory 5000mb -limit disk 5gb
 IM_OPS=""
-- 
2.20.1