configure: Enable avconv filter dependencies automatically

This makes sure minimal configurations such as
"--disable-everything --enable-avconv" will enable the filters
necessary for running avconv, instead of just keeping avconv
disabled (even if the user specified "--enable-avconv").

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2012-11-09 14:32:38 +02:00
parent d5e83122bd
commit 54fd593a0e