From fcb3f8dc2a45132fe1f0b562dd5ad9c5ee846ed4 Mon Sep 17 00:00:00 2001
From: Elia Zammuto <theelixzammuto@gmail.com>
Date: Tue, 12 Nov 2024 21:56:51 +0100
Subject: [PATCH 1/2] Started Intra Refresh Support

---
 src/Limelight.h    | 4 ++++
 src/SdpGenerator.c | 7 +++++++
 2 files changed, 11 insertions(+)

diff --git a/src/Limelight.h b/src/Limelight.h
index b2bb550..a85879a 100644
--- a/src/Limelight.h
+++ b/src/Limelight.h
@@ -277,6 +277,10 @@ typedef struct _DECODE_UNIT {
 // number of slices per frame. This capability is only valid on video renderers.
 #define CAPABILITY_SLICES_PER_FRAME(x) (((unsigned char)(x)) << 24)
 
+// If set in the video renderer capabilities field, this flag specifies that the renderer
+// needs to opt-in to intra refresh, some clients (like the Xbox client with NVEnc) needs it
+#define CAPABILITY_INTRA_REFRESH 0x40
+
 // This callback is invoked to provide details about the video stream and allow configuration of the decoder.
 // Returns 0 on success, non-zero on failure.
 typedef int(*DecoderRendererSetup)(int videoFormat, int width, int height, int redrawRate, void* context, int drFlags);
diff --git a/src/SdpGenerator.c b/src/SdpGenerator.c
index a2f9789..1aedad3 100644
--- a/src/SdpGenerator.c
+++ b/src/SdpGenerator.c
@@ -309,6 +309,13 @@ static PSDP_OPTION getAttributesList(char*urlSafeAddr) {
         else {
             err |= addAttributeString(&optionHead, "x-ss-video[0].chromaSamplingType", "0");
         }
+
+        // Add intra-refresh if opted in
+        if (VideoCallbacks.capabilities & CAPABILITY_INTRA_REFRESH){
+            err |= addAttributeString(&optionHead, "x-ss-video[0].intraRefresh", "1");
+        } else {
+            err |= addAttributeString(&optionHead, "x-ss-video[0].intraRefresh", "0");
+        }
     }
 
     snprintf(payloadStr, sizeof(payloadStr), "%d", StreamConfig.width);

From a56638e86c9197f3e626f2beefad079b11df79f3 Mon Sep 17 00:00:00 2001
From: TheElixZammuto <theelixzammuto@gmail.com>
Date: Mon, 23 Dec 2024 16:09:06 +0100
Subject: [PATCH 2/2] Changed value of bitmask

---
 src/Limelight.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Limelight.h b/src/Limelight.h
index a85879a..4745ae2 100644
--- a/src/Limelight.h
+++ b/src/Limelight.h
@@ -279,7 +279,7 @@ typedef struct _DECODE_UNIT {
 
 // If set in the video renderer capabilities field, this flag specifies that the renderer
 // needs to opt-in to intra refresh, some clients (like the Xbox client with NVEnc) needs it
-#define CAPABILITY_INTRA_REFRESH 0x40
+#define CAPABILITY_INTRA_REFRESH 0x80
 
 // This callback is invoked to provide details about the video stream and allow configuration of the decoder.
 // Returns 0 on success, non-zero on failure.