vo_gpu: libplacebo: require v2.72.0

It's about a year old, and packaged pretty much everywhere that bothers
to package libplacebo at all. Older versions are only a thing on LTS,
which will probably also use older mpv so it works out.

Starting with v2.72.0, libplacebo validates all of its parameters
internally and turns them into function failures. Doing it twice is
awfully redundant, so we can drop the parameter validation.

Also allows us to drop some preprocessor macros.

1 files changed, 1 insertions, 1 deletions

diff --git a/wscript b/wscript
index 86231b79b1..0ced76244a 100644
--- a/wscript
+++ b/wscript
@@ -725,7 +725,7 @@ video_output_features = [
     }, {
         'name': '--libplacebo',
         'desc': 'libplacebo support',
-        'func': check_pkg_config('libplacebo >= 1.18.0'),
+        'func': check_pkg_config('libplacebo >= 2.72.0'),
     }, {
         'name': '--vulkan',
         'desc':  'Vulkan context support',