automatically enable buffer_filter when compiling ffmpeg

Fixes issue 1949 Originally committed as revision 23388 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago · 21ae67900e
--- a/configure
+++ b/configure
@@ -1426,6 +1426,7 @@ avformat_deps="avcodec"

 # programs
 ffmpeg_deps="avcodec avformat swscale"
 ffmpeg_select="buffer_filter"
 ffplay_deps="avcodec avformat swscale sdl"
 ffplay_select="rdft"
 ffprobe_deps="avcodec avformat"