From f4f496cb48a59aae36e3252baa90396e1bfadd2e Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Tue, 28 Sep 2021 19:43:40 -0300
Subject: NVDEC (H264): Use separate contexts per channel and decode frames in
 DTS order (#2671)

* Use separate NVDEC contexts per channel (for FFMPEG)

* Remove NVDEC -> VIC frame override hack

* Add missing bottom_field_pic_order_in_frame_present_flag

* Make FFMPEG logging static

* nit: Remove empty lines

* New FFMPEG decoding approach -- call h264_decode_frame directly, trim surface cache to reduce memory usage

* Fix case

* Silence warnings

* PR feedback

* Per-decoder rather than per-codec ownership of surfaces on the cache
---
 Ryujinx.Graphics.Nvdec/NvdecDecoderContext.cs | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 Ryujinx.Graphics.Nvdec/NvdecDecoderContext.cs

(limited to 'Ryujinx.Graphics.Nvdec/NvdecDecoderContext.cs')

diff --git a/Ryujinx.Graphics.Nvdec/NvdecDecoderContext.cs b/Ryujinx.Graphics.Nvdec/NvdecDecoderContext.cs
new file mode 100644
index 00000000..90da0bee
--- /dev/null
+++ b/Ryujinx.Graphics.Nvdec/NvdecDecoderContext.cs
@@ -0,0 +1,21 @@
+using Ryujinx.Graphics.Nvdec.H264;
+using System;
+
+namespace Ryujinx.Graphics.Nvdec
+{
+    class NvdecDecoderContext : IDisposable
+    {
+        private Decoder _decoder;
+
+        public Decoder GetDecoder()
+        {
+            return _decoder ??= new Decoder();
+        }
+
+        public void Dispose()
+        {
+            _decoder?.Dispose();
+            _decoder = null;
+        }
+    }
+}
\ No newline at end of file
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