configure: only enable nvenc if asked, not by default, fixes #4572

diff --git a/configure b/configure
index f0b6fa25fe8dd7a35b1692acef8321d902606cbb..1004b79f954d6f07a2d12ed53ca0ad4513f349e4 100755 (executable)
--- a/configure
+++ b/configure
@@ -495,11 +495,13 @@ if enabled ffmpeg_static; then
 
   # nvenc
   # latest ffmpeg has own code
-  enable nvenc
-  #if enabled nvenc; then
-  #  check_cc_header nvEncodeAPI || \
-  #    die "NVENC library (https://developer.nvidia.com/nvidia-video-codec-sdk) not found"
-  #fi
+  if enabled_or_auto nvenc; then
+    #check_cc_header nvEncodeAPI || \
+    #  die "NVENC library (https://developer.nvidia.com/nvidia-video-codec-sdk) not found"
+    enable nvenc
+  else
+    disable nvenc
+  fi
 
   # qsv
   if enabled qsv; then