From 28973ac4b1e02b64a04305f5355371c52011aabf Mon Sep 17 00:00:00 2001
From: Geoffrey McRae <geoff@hostfission.com>
Date: Wed, 15 Jul 2026 18:39:02 +1000
Subject: [PATCH] [obs] implement HDR support

---
 obs/lg.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/obs/lg.c b/obs/lg.c
index f4aa3354..e069f07f 100644
--- a/obs/lg.c
+++ b/obs/lg.c
@@ -96,6 +96,7 @@ typedef struct
   uint32_t             linesize;
 
   bool                 hideMouse;
+  bool                 hdr;
 #if LIBOBS_API_MAJOR_VER >= 27
   bool                 dmabuf;
   bool                 dmabufTested;
@@ -619,6 +620,7 @@ static void lgFormatInit(LGPlugin * this, const KVMFRFrame * frame,
 
   this->dataWidth = frame->dataWidth;
   this->unpack    = false;
+  this->hdr       = frame->flags & FRAME_FLAG_HDR;
 
   this->bpp = 4;
   switch(this->type)
@@ -643,7 +645,7 @@ static void lgFormatInit(LGPlugin * this, const KVMFRFrame * frame,
       this->format     = GS_R10G10B10A2;
       this->drmFormat  = DRM_FORMAT_BGRA1010102;
 #if LIBOBS_API_MAJOR_VER >= 28
-      this->colorSpace = GS_CS_709_SCRGB;
+      this->colorSpace = this->hdr ? GS_CS_709_SCRGB : GS_CS_SRGB;
 #endif
       break;