docker: temporarily lock FFmpeg at 7.1

due to `cmfv is not in allowed_extensions` issue

Author: KFERMercer

Dockerfile

@@ -168,14 +168,17 @@ EOT
 WORKDIR /tmp/ffmpeg_source
 
 RUN <<EOT
-	FFMPEG_TARBALL="$( \
-		curl -s -L -k --connect-timeout 5 --retry 3 \
-			"https://ffmpeg.org/releases/" \
-			| grep -oE 'ffmpeg-[0-9]+.*.tar.xz' \
-			| sed 's|\.tar.xz.*||' \
-			| sort -V \
-			| tail -n 1 \
-	).tar.xz"
+	# Get newest version of FFmpeg.
+	# FFMPEG_TARBALL="$( \
+	# 	curl -s -L -k --connect-timeout 5 --retry 3 \
+	# 		"https://ffmpeg.org/releases/" \
+	# 		| grep -oE 'ffmpeg-[0-9]+.*.tar.xz' \
+	# 		| sed 's|\.tar.xz.*||' \
+	# 		| sort -V \
+	# 		| tail -n 1 \
+	# ).tar.xz"
+
+	FFMPEG_TARBALL="ffmpeg-7.1.tar.xz"
 
 	curl -L -k --connect-timeout 5 --retry 3 \
 		"https://ffmpeg.org/releases/${FFMPEG_TARBALL}" \