New NVDEC and VIC implementation (#1384)

* Initial NVDEC and VIC implementation

* Update FFmpeg.AutoGen to 4.3.0

* Add nvdec dependencies for Windows

* Unify some VP9 structures

* Rename VP9 structure fields

* Improvements to Video API

* XML docs for Common.Memory

* Remove now unused or redundant overloads from MemoryAccessor

* NVDEC UV surface read/write scalar paths

* Add FIXME comments about hacky things/stuff that will need to be fixed in the future

* Cleaned up VP9 memory allocation

* Remove some debug logs

* Rename some VP9 structs

* Remove unused struct

* No need to compile Ryujinx.Graphics.Host1x with unsafe anymore

* Name AsyncWorkQueue threads to make debugging easier

* Make Vp9PictureInfo a ref struct

* LayoutConverter no longer needs the depth argument (broken by rebase)

* Pooling of VP9 buffers, plus fix a memory leak on VP9

* Really wish VS could rename projects properly...

* Address feedback

* Remove using

* Catch OperationCanceledException

* Add licensing informations

* Add THIRDPARTY.md to release too

Co-authored-by: Thog <me@thog.eu>

Ryujinx.Graphics.Nvdec.Vp9/CodecErr.cs

@@ -0,0 +1,56 @@
+namespace Ryujinx.Graphics.Nvdec.Vp9
+{
+    internal enum CodecErr
+    {
+        /*!\brief Operation completed without error */
+        CodecOk,
+
+        /*!\brief Unspecified error */
+        CodecError,
+
+        /*!\brief Memory operation failed */
+        CodecMemError,
+
+        /*!\brief ABI version mismatch */
+        CodecAbiMismatch,
+
+        /*!\brief Algorithm does not have required capability */
+        CodecIncapable,
+
+        /*!\brief The given bitstream is not supported.
+         *
+         * The bitstream was unable to be parsed at the highest level. The decoder
+         * is unable to proceed. This error \ref SHOULD be treated as fatal to the
+         * stream. */
+        CodecUnsupBitstream,
+
+        /*!\brief Encoded bitstream uses an unsupported feature
+         *
+         * The decoder does not implement a feature required by the encoder. This
+         * return code should only be used for features that prevent future
+         * pictures from being properly decoded. This error \ref MAY be treated as
+         * fatal to the stream or \ref MAY be treated as fatal to the current GOP.
+         */
+        CodecUnsupFeature,
+
+        /*!\brief The coded data for this stream is corrupt or incomplete
+         *
+         * There was a problem decoding the current frame.  This return code
+         * should only be used for failures that prevent future pictures from
+         * being properly decoded. This error \ref MAY be treated as fatal to the
+         * stream or \ref MAY be treated as fatal to the current GOP. If decoding
+         * is continued for the current GOP, artifacts may be present.
+         */
+        CodecCorruptFrame,
+
+        /*!\brief An application-supplied parameter is not valid.
+         *
+         */
+        CodecInvalidParam,
+
+        /*!\brief An iterator reached the end of list.
+         *
+         */
+        CodecListEnd
+    }
+}