diff --git a/src/Ryujinx.Graphics.Nvdec.FFmpeg/FFmpegContext.cs b/src/Ryujinx.Graphics.Nvdec.FFmpeg/FFmpegContext.cs
index 572ceaaab..284a35a24 100644
--- a/src/Ryujinx.Graphics.Nvdec.FFmpeg/FFmpegContext.cs
+++ b/src/Ryujinx.Graphics.Nvdec.FFmpeg/FFmpegContext.cs
@@ -12,8 +12,8 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg
         private readonly AVCodec_decode _decodeFrame;
         private static readonly FFmpegApi.av_log_set_callback_callback _logFunc;
         private readonly AVCodec* _codec;
-        private AVPacket* _packet;
-        private AVCodecContext* _context;
+        private readonly AVPacket* _packet;
+        private readonly AVCodecContext* _context;
 
         public FFmpegContext(AVCodecID codecId)
         {
@@ -164,7 +164,7 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg
                 FFmpegApi.av_packet_free(ppPacket);
             }
 
-            FFmpegApi.avcodec_close(_context);
+            _ = FFmpegApi.avcodec_close(_context);
 
             fixed (AVCodecContext** ppContext = &_context)
             {
diff --git a/src/Ryujinx.Graphics.Nvdec.FFmpeg/H264/Decoder.cs b/src/Ryujinx.Graphics.Nvdec.FFmpeg/H264/Decoder.cs
index d8b213e55..7dd643ce3 100644
--- a/src/Ryujinx.Graphics.Nvdec.FFmpeg/H264/Decoder.cs
+++ b/src/Ryujinx.Graphics.Nvdec.FFmpeg/H264/Decoder.cs
@@ -12,7 +12,7 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg.H264
 
         private readonly byte[] _workBuffer = new byte[WorkBufferSize];
 
-        private FFmpegContext _context = new FFmpegContext(AVCodecID.AV_CODEC_ID_H264);
+        private FFmpegContext _context = new(AVCodecID.AV_CODEC_ID_H264);
 
         private int _oldOutputWidth;
         private int _oldOutputHeight;
@@ -46,7 +46,7 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg.H264
             byte[] output = new byte[data.Length + prep.Length];
 
             prep.CopyTo(output);
-            data.CopyTo(new Span<byte>(output).Slice(prep.Length));
+            data.CopyTo(new Span<byte>(output)[prep.Length..]);
 
             return output;
         }
diff --git a/src/Ryujinx.Graphics.Nvdec.FFmpeg/H264/H264BitStreamWriter.cs b/src/Ryujinx.Graphics.Nvdec.FFmpeg/H264/H264BitStreamWriter.cs
index 3d3b32933..57ab9fb53 100644
--- a/src/Ryujinx.Graphics.Nvdec.FFmpeg/H264/H264BitStreamWriter.cs
+++ b/src/Ryujinx.Graphics.Nvdec.FFmpeg/H264/H264BitStreamWriter.cs
@@ -84,9 +84,9 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg.H264
             Flush();
         }
 
-        public Span<byte> AsSpan()
+        public readonly Span<byte> AsSpan()
         {
-            return new Span<byte>(_workBuffer).Slice(0, _offset);
+            return new Span<byte>(_workBuffer)[.._offset];
         }
 
         public void WriteU(uint value, int valueSize) => WriteBits((int)value, valueSize);
@@ -118,4 +118,4 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg.H264
             WriteBits((int)value, size - 1);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/Ryujinx.Graphics.Nvdec.FFmpeg/H264/SpsAndPpsReconstruction.cs b/src/Ryujinx.Graphics.Nvdec.FFmpeg/H264/SpsAndPpsReconstruction.cs
index 57fb65d50..d8bf6f746 100644
--- a/src/Ryujinx.Graphics.Nvdec.FFmpeg/H264/SpsAndPpsReconstruction.cs
+++ b/src/Ryujinx.Graphics.Nvdec.FFmpeg/H264/SpsAndPpsReconstruction.cs
@@ -8,7 +8,7 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg.H264
     {
         public static Span<byte> Reconstruct(ref H264PictureInfo pictureInfo, byte[] workBuffer)
         {
-            H264BitStreamWriter writer = new H264BitStreamWriter(workBuffer);
+            H264BitStreamWriter writer = new(workBuffer);
 
             // Sequence Parameter Set.
             writer.WriteU(1, 24);
diff --git a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVCodec.cs b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVCodec.cs
index 46d3ad61c..434b9b29b 100644
--- a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVCodec.cs
+++ b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVCodec.cs
@@ -4,7 +4,7 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg.Native
 {
     struct AVCodec
     {
-#pragma warning disable CS0649
+#pragma warning disable CS0649 // Field is never assigned to
         public unsafe byte* Name;
         public unsafe byte* LongName;
         public int Type;
diff --git a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVCodec501.cs b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVCodec501.cs
index 47d4969ac..7b82b5ddf 100644
--- a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVCodec501.cs
+++ b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVCodec501.cs
@@ -4,7 +4,7 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg.Native
 {
     struct AVCodec501
     {
-#pragma warning disable CS0649
+#pragma warning disable CS0649 // Field is never assigned to
         public unsafe byte* Name;
         public unsafe byte* LongName;
         public int Type;
diff --git a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVCodecContext.cs b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVCodecContext.cs
index 6c9fbc893..a9605c63f 100644
--- a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVCodecContext.cs
+++ b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVCodecContext.cs
@@ -5,7 +5,7 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg.Native
 {
     struct AVCodecContext
     {
-#pragma warning disable CS0649
+#pragma warning disable CS0649 // Field is never assigned to
         public unsafe IntPtr AvClass;
         public int LogLevelOffset;
         public int CodecType;
diff --git a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVFrame.cs b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVFrame.cs
index faaf5c7d8..cdc9ebfdc 100644
--- a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVFrame.cs
+++ b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVFrame.cs
@@ -5,7 +5,7 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg.Native
 {
     struct AVFrame
     {
-#pragma warning disable CS0649
+#pragma warning disable CS0649 // Field is never assigned to
         public Array8<IntPtr> Data;
         public Array8<int> LineSize;
         public IntPtr ExtendedData;
diff --git a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVPacket.cs b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVPacket.cs
index d5b021040..47b9bef98 100644
--- a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVPacket.cs
+++ b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/AVPacket.cs
@@ -1,26 +1,24 @@
-using System;
-
-using AVBufferRef = System.IntPtr;
+using AVBufferRef = System.IntPtr;
 
 namespace Ryujinx.Graphics.Nvdec.FFmpeg.Native
 {
     struct AVPacket
     {
-#pragma warning disable CS0649
-        public unsafe AVBufferRef *Buf;
+#pragma warning disable CS0649 // Field is never assigned to
+        public unsafe AVBufferRef* Buf;
         public long Pts;
         public long Dts;
         public unsafe byte* Data;
         public int Size;
         public int StreamIndex;
         public int Flags;
-        public IntPtr SizeData;
+        public AVBufferRef SizeData;
         public int SizeDataElems;
         public long Duration;
         public long Position;
-        public IntPtr Opaque;
-        public unsafe AVBufferRef *OpaqueRef;
+        public AVBufferRef Opaque;
+        public unsafe AVBufferRef* OpaqueRef;
         public AVRational TimeBase;
 #pragma warning restore CS0649
     }
-}
\ No newline at end of file
+}
diff --git a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/FFCodec.cs b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/FFCodec.cs
index 4df45af46..89a33697c 100644
--- a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/FFCodec.cs
+++ b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/FFCodec.cs
@@ -2,9 +2,9 @@
 
 namespace Ryujinx.Graphics.Nvdec.FFmpeg.Native
 {
-    struct FFCodec<T> where T: struct
+    struct FFCodec<T> where T : struct
     {
-#pragma warning disable CS0649
+#pragma warning disable CS0649 // Field is never assigned to
         public T Base;
         public int CapsInternalOrCbType;
         public int PrivDataSize;
diff --git a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/FFCodecLegacy.cs b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/FFCodecLegacy.cs
index 910270a55..630e2c179 100644
--- a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/FFCodecLegacy.cs
+++ b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/FFCodecLegacy.cs
@@ -2,9 +2,9 @@
 
 namespace Ryujinx.Graphics.Nvdec.FFmpeg.Native
 {
-    struct FFCodecLegacy<T> where T: struct
+    struct FFCodecLegacy<T> where T : struct
     {
-#pragma warning disable CS0649
+#pragma warning disable CS0649 // Field is never assigned to
         public T Base;
         public uint CapsInternalOrCbType;
         public int PrivDataSize;
diff --git a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/FFmpegApi.cs b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/FFmpegApi.cs
index d173a4129..262d26431 100644
--- a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/FFmpegApi.cs
+++ b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Native/FFmpegApi.cs
@@ -10,7 +10,7 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg.Native
         public const string AvCodecLibraryName = "avcodec";
         public const string AvUtilLibraryName = "avutil";
 
-        private static readonly Dictionary<string, (int, int)> _librariesWhitelist = new Dictionary<string, (int, int)>
+        private static readonly Dictionary<string, (int, int)> _librariesWhitelist = new()
         {
             { AvCodecLibraryName, (58, 59) },
             { AvUtilLibraryName, (56, 57) }
@@ -61,9 +61,8 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg.Native
         {
             NativeLibrary.SetDllImportResolver(typeof(FFmpegApi).Assembly, (name, assembly, path) =>
             {
-                IntPtr handle;
 
-                if (name == AvUtilLibraryName && TryLoadWhitelistedLibrary(AvUtilLibraryName, assembly, path, out handle))
+                if (name == AvUtilLibraryName && TryLoadWhitelistedLibrary(AvUtilLibraryName, assembly, path, out nint handle))
                 {
                     return handle;
                 }
@@ -106,7 +105,7 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg.Native
         internal static unsafe partial AVCodecContext* avcodec_alloc_context3(AVCodec* codec);
 
         [LibraryImport(AvCodecLibraryName)]
-        internal static unsafe partial int avcodec_open2(AVCodecContext* avctx, AVCodec* codec, void **options);
+        internal static unsafe partial int avcodec_open2(AVCodecContext* avctx, AVCodec* codec, void** options);
 
         [LibraryImport(AvCodecLibraryName)]
         internal static unsafe partial int avcodec_close(AVCodecContext* avctx);
diff --git a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Surface.cs b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Surface.cs
index 1ca9d1d53..959791b6e 100644
--- a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Surface.cs
+++ b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Surface.cs
@@ -11,9 +11,9 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg
         public int RequestedWidth { get; }
         public int RequestedHeight { get; }
 
-        public Plane YPlane => new Plane((IntPtr)Frame->Data[0], Stride * Height);
-        public Plane UPlane => new Plane((IntPtr)Frame->Data[1], UvStride * UvHeight);
-        public Plane VPlane => new Plane((IntPtr)Frame->Data[2], UvStride * UvHeight);
+        public Plane YPlane => new((IntPtr)Frame->Data[0], Stride * Height);
+        public Plane UPlane => new((IntPtr)Frame->Data[1], UvStride * UvHeight);
+        public Plane VPlane => new((IntPtr)Frame->Data[2], UvStride * UvHeight);
 
         public FrameField Field => Frame->InterlacedFrame != 0 ? FrameField.Interlaced : FrameField.Progressive;
 
diff --git a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Vp8/Decoder.cs b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Vp8/Decoder.cs
index 3570c3ecc..5e38c8c8e 100644
--- a/src/Ryujinx.Graphics.Nvdec.FFmpeg/Vp8/Decoder.cs
+++ b/src/Ryujinx.Graphics.Nvdec.FFmpeg/Vp8/Decoder.cs
@@ -8,7 +8,7 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg.Vp8
     {
         public bool IsHardwareAccelerated => false;
 
-        private readonly FFmpegContext _context = new FFmpegContext(AVCodecID.AV_CODEC_ID_VP8);
+        private readonly FFmpegContext _context = new(AVCodecID.AV_CODEC_ID_VP8);
 
         public ISurface CreateSurface(int width, int height)
         {
@@ -43,11 +43,11 @@ namespace Ryujinx.Graphics.Nvdec.FFmpeg.Vp8
                 frame[9] = (byte)((pictureInfo.FrameHeight >> 8) & 0x3F);
             }
 
-            bitstream.CopyTo(new Span<byte>(frame).Slice(uncompHeaderSize));
+            bitstream.CopyTo(new Span<byte>(frame)[uncompHeaderSize..]);
 
             return _context.DecodeFrame(outSurf, frame) == 0;
         }
 
         public void Dispose() => _context.Dispose();
     }
-}
\ No newline at end of file
+}