ffmpeg: update to 4.1.

srcpkgs/ffmpeg/template

@@ -1,15 +1,15 @@
 # Template file for 'ffmpeg'
 # audacity also needs to be bumped when a new ffmpeg version bumps libavformat's soname!
 pkgname=ffmpeg
-version=4.0.2
-revision=4
+version=4.1
+revision=1
 short_desc="Decoding, encoding and streaming software"
 maintainer="Johannes <johannes.brechtmann@gmail.com>"
 license="GPL-3.0-or-later"
 homepage="https://www.ffmpeg.org"
 changelog="https://raw.githubusercontent.com/FFmpeg/FFmpeg/master/Changelog"
 distfiles="${homepage}/releases/ffmpeg-${version}.tar.xz"
-checksum=a95c0cc9eb990e94031d2183f2e6e444cc61c99f6f182d1575c433d62afb2f97
+checksum=a38ec4d026efb58506a99ad5cd23d5a9793b4bf415f2c4c2e9c1bb444acd1994
 
 hostmakedepends="pkg-config perl yasm"
 makedepends="zlib-devel bzip2-devel freetype-devel alsa-lib-devel libXfixes-devel
@@ -53,7 +53,7 @@ do_configure() {
 	./configure --prefix=/usr --disable-debug --enable-gpl --enable-gnutls \
 		--enable-libcdio --enable-version3 --enable-runtime-cpudetect \
 		--enable-libmp3lame --enable-libvorbis --enable-libxvid \
-		--enable-libx264 $(vopt_if vpx --enable-libvpx) --enable-libtheora \
+		--enable-libx264 $(vopt_enable vpx libvpx) --enable-libtheora \
 		--enable-shared --enable-static --enable-libxcb \
 		--enable-libpulse --enable-libfreetype --enable-libmodplug \
 		--enable-libspeex --enable-libcelt --enable-libass \