vaapi: add support for global-alpha subpictures.
-rw-r--r-- 672 Makefile.am
-rw-r--r-- 5943 NEWS
-rw-r--r-- 1013 README
-rwxr-xr-x 52 autogen.sh
-rw-r--r-- 11859 configure.ac
drwxr-xr-x - src