From bee221c18d57395368cf06f0a0f9bca58a0573ae Mon Sep 17 00:00:00 2001
From: Geoffrey McRae <geoff@hostfission.com>
Date: Wed, 10 Apr 2019 22:23:56 +1000
Subject: [PATCH] [c-host] add ability to provide NvFBC privData

---
 VERSION                                       |  2 +-
 .../Windows/capture/NVFBC/src/nvfbc.c         | 26 +++++++++++++++++--
 2 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/VERSION b/VERSION
index b0047c76..5bad1341 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-a12-148-gda7c66419a+1
\ No newline at end of file
+a12-149-g878eb057d1+1
\ No newline at end of file
diff --git a/c-host/platform/Windows/capture/NVFBC/src/nvfbc.c b/c-host/platform/Windows/capture/NVFBC/src/nvfbc.c
index 2921699b..f595859c 100644
--- a/c-host/platform/Windows/capture/NVFBC/src/nvfbc.c
+++ b/c-host/platform/Windows/capture/NVFBC/src/nvfbc.c
@@ -85,13 +85,35 @@ static bool nvfbc_create()
   if (!NvFBCInit())
     return false;
 
-  this = (struct iface *)calloc(sizeof(struct iface), 1);
+  int       bufferLen   = GetEnvironmentVariable("NVFBC_PRIV_DATA", NULL, 0);
+  uint8_t * privData    = NULL;
+  int       privDataLen = 0;
 
-  if (!NvFBCToSysCreate(NULL, 0, &this->nvfbc, &this->maxWidth, &this->maxHeight))
+  if(bufferLen)
   {
+    char * buffer = malloc(bufferLen);
+    GetEnvironmentVariable("NVFBC_PRIV_DATA", buffer, bufferLen);
+
+    privDataLen = (bufferLen - 1) / 2;
+    privData    = (uint8_t *)malloc(privDataLen);
+    char hex[3] = {0};
+    for(int i = 0; i < privDataLen; ++i)
+    {
+      memcpy(hex, &buffer[i*2], 2);
+      privData[i] = (uint8_t)strtoul(hex, NULL, 16);
+    }
+
+    free(buffer);
+  }
+
+  this = (struct iface *)calloc(sizeof(struct iface), 1);
+  if (!NvFBCToSysCreate(privData, privDataLen, &this->nvfbc, &this->maxWidth, &this->maxHeight))
+  {
+    free(privData);
     nvfbc_free();
     return false;
   }
+  free(privData);
 
   this->frameEvent = os_createEvent(true);
   if (!this->frameEvent)