From 3f26217df7ea00b78a012950e0e768c5df6ed69f Mon Sep 17 00:00:00 2001
From: Cameron Gutman <aicommander@gmail.com>
Date: Wed, 5 Aug 2026 23:48:51 -0500
Subject: [PATCH] Select color range based on plane COLOR_RANGE property values

---
 app/streaming/video/ffmpeg-renderers/drm.cpp | 16 ++++++++++++++++
 app/streaming/video/ffmpeg-renderers/drm.h   |  1 +
 2 files changed, 17 insertions(+)

diff --git a/app/streaming/video/ffmpeg-renderers/drm.cpp b/app/streaming/video/ffmpeg-renderers/drm.cpp
index 4a7bb0e5..788fb30a 100644
--- a/app/streaming/video/ffmpeg-renderers/drm.cpp
+++ b/app/streaming/video/ffmpeg-renderers/drm.cpp
@@ -2019,6 +2019,22 @@ int DrmRenderer::getDecoderColorspace()
     return COLORSPACE_REC_601;
 }
 
+int DrmRenderer::getDecoderColorRange()
+{
+    if (auto prop = m_VideoPlane.property("COLOR_RANGE")) {
+        // Prefer full range if the video plane supports it
+        if (prop->containsValue("YCbCr full range")) {
+            return COLOR_RANGE_FULL;
+        }
+        else if (prop->containsValue("YCbCr limited range")) {
+            return COLOR_RANGE_LIMITED;
+        }
+    }
+
+    // Default to limited if we couldn't find a valid COLOR_RANGE property
+    return COLOR_RANGE_LIMITED;
+}
+
 const char* DrmRenderer::getDrmColorEncodingValue(AVFrame* frame)
 {
     switch (getFrameColorspace(frame)) {
diff --git a/app/streaming/video/ffmpeg-renderers/drm.h b/app/streaming/video/ffmpeg-renderers/drm.h
index f1a1ba35..0c82ccdc 100644
--- a/app/streaming/video/ffmpeg-renderers/drm.h
+++ b/app/streaming/video/ffmpeg-renderers/drm.h
@@ -770,6 +770,7 @@ public:
     virtual bool testRenderFrame(AVFrame* frame) override;
     virtual bool isDirectRenderingSupported() override;
     virtual int getDecoderColorspace() override;
+    virtual int getDecoderColorRange() override;
     virtual void setHdrMode(bool enabled) override;
     virtual void notifyOverlayUpdated(Overlay::OverlayType type) override;
 #ifdef HAVE_EGL