From 71295fb872ba6593c8591cff7398498e05afb298 Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Fri, 24 Apr 2020 14:41:50 +0200
Subject: video: add alpha type metadata

This is mostly for testing. It adds passing through the metadata through
the video chain. The metadata can be manipulated with vf_format. Support
for zimg alpha conversion (if built with zimg after it gained alpha
support) is implemented. Support premultiplied input in vo_gpu.

Some things still seem to be buggy.
---
 video/csputils.h | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'video/csputils.h')

diff --git a/video/csputils.h b/video/csputils.h
index f817779584..fc6f04db6a 100644
--- a/video/csputils.h
+++ b/video/csputils.h
@@ -189,6 +189,14 @@ enum mp_chroma_location {
 
 extern const struct m_opt_choice_alternatives mp_chroma_names[];
 
+enum mp_alpha_type {
+    MP_ALPHA_AUTO,
+    MP_ALPHA_STRAIGHT,
+    MP_ALPHA_PREMUL,
+};
+
+extern const struct m_opt_choice_alternatives mp_alpha_names[];
+
 extern const struct m_sub_options mp_csp_equalizer_conf;
 
 enum mp_csp_equalizer_param {
-- 
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