From a1ea6e859c2554c58f1436357d27daa554863a7e Mon Sep 17 00:00:00 2001
From: Toni <a.bleile@netventure.tv>
Date: Sat, 11 Nov 2023 11:06:49 +0100
Subject: [PATCH] Add BT601FullRange format

---
 FlashCap.Core/CaptureDeviceDescriptor.cs   |  1 +
 FlashCap.Core/Internal/BitmapTranscoder.cs | 23 +++++++++++++---------
 2 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/FlashCap.Core/CaptureDeviceDescriptor.cs b/FlashCap.Core/CaptureDeviceDescriptor.cs
index 006154a..01e4321 100644
--- a/FlashCap.Core/CaptureDeviceDescriptor.cs
+++ b/FlashCap.Core/CaptureDeviceDescriptor.cs
@@ -29,6 +29,7 @@ public enum TranscodeFormats
     Auto,
     DoNotTranscode,
     BT601,
+    BT601FullRange,
     BT709,
     BT709FullRange,
     BT2020,
diff --git a/FlashCap.Core/Internal/BitmapTranscoder.cs b/FlashCap.Core/Internal/BitmapTranscoder.cs
index 1940dc7..3766f58 100644
--- a/FlashCap.Core/Internal/BitmapTranscoder.cs
+++ b/FlashCap.Core/Internal/BitmapTranscoder.cs
@@ -28,15 +28,10 @@ internal static class BitmapTranscoder
        TranscodeFormats conversionStandard, bool isUYVY,
        byte* pFrom, byte* pTo)
     {
-        // default values BT.601
-        int multY = 255;
-        int multUB = 516;
-        int multUG = 100;
-        int multVG = 208;
-        int multVR = 409;
-        int offsetY = 0;
-
-        // set constants for the color conversion
+        // constants for color conversion
+        int multY, multUB, multUG, multVG, multVR, offsetY;
+
+        // select constants for the color conversion
         switch (conversionStandard)
         {
             //////////////////////////////////////////////////
@@ -50,6 +45,15 @@ internal static class BitmapTranscoder
             //0   ,-100, 516
             //409, -208, 0
 
+            case TranscodeFormats.BT601FullRange:
+                multY = 255;
+                multUB = 516;
+                multUG = 100;
+                multVG = 208;
+                multVR = 409;
+                offsetY = 0;
+
+                break;
             case TranscodeFormats.BT601:
                 // YUV limited range
                 // (Y  is in [16..235], rescale to [0..255])
@@ -186,6 +190,7 @@ internal static class BitmapTranscoder
         switch (transcodeFormat)
         {
             case TranscodeFormats.BT601:
+            case TranscodeFormats.BT601FullRange:
             case TranscodeFormats.BT709:
             case TranscodeFormats.BT709FullRange:
             case TranscodeFormats.BT2020:
-- 
2.37.1.windows.1