mpv: remove mandatory libva dependency

extra/mpv/build

@@ -1,5 +1,7 @@
 #!/bin/sh -e
 
+patch -p1 < libva.patch
+
 # Setup docutils to generate manual pages.
 {
     cd docutils

extra/mpv/checksums

@@ -1 +1,2 @@
 33995a6753c30b7f577febfc2c50411fec6aac7f7ffeb7c4cfe5991072dcf9e6
+fc2de250a91d073ad9d0815b9b1cca352ed20ebf3d4bed9688339aded9a2aaf2

extra/mpv/depends

@@ -2,7 +2,6 @@ alsa-lib
 ffmpeg
 freetype-harfbuzz
 libass
-libva
 libxkbcommon
 linux-headers make
 mesa

extra/mpv/patches/libva.patch

@@ -0,0 +1,13 @@
+diff --git a/meson.build b/meson.build
+index 8554573bfa..e710dc87b0 100644
+--- a/meson.build
++++ b/meson.build
+@@ -1376,7 +1376,7 @@ if features['vaapi-x11']
+ endif
+ 
+ features += {'vaapi-x-egl': features['vaapi-x11'] and egl_x11.allowed()}
+-features += {'vaapi-egl': features['vaapi-x11'] or features['vaapi-wayland'] or features['drm']}
++features += {'vaapi-egl': features['vaapi-x11'] or features['vaapi-wayland'] or features['vaapi-drm']}
+ features += {'vaapi-libplacebo': features['vaapi'] and libplacebo.found()}
+ 
+ if features['vaapi-egl'] or features['vaapi-libplacebo']

extra/mpv/sources

@@ -1,2 +1,3 @@
 git+https://github.com/mpv-player/mpv
 https://files.pythonhosted.org/packages/source/d/docutils/docutils-0.19.tar.gz docutils
+patches/libva.patch