nvdec: Adding Vp8 codec support (#2707)

* first try

* second try

* working update

* Final impl

* Fixes nits

* Fix everything

* remove leftover

* Update FFmpegContext.cs

* Update Surface.cs

* Addresses gdkchan feedback

* bool not byte

* Addresses gdkchan feedback

1 files changed, 0 insertions, 162 deletions

diff --git a/Ryujinx.Graphics.Nvdec.H264/FFmpegContext.cs b/Ryujinx.Graphics.Nvdec.H264/FFmpegContext.cs
deleted file mode 100644
index 66b1e6c1..00000000
--- a/Ryujinx.Graphics.Nvdec.H264/FFmpegContext.cs
+++ /dev/null
@@ -1,162 +0,0 @@
-using FFmpeg.AutoGen;
-using Ryujinx.Common.Logging;
-using System;
-using System.Diagnostics;
-using System.IO;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.Graphics.Nvdec.H264
-{
-    unsafe class FFmpegContext : IDisposable
-    {
-        private readonly AVCodec_decode _h264Decode;
-        private static readonly av_log_set_callback_callback _logFunc;
-        private readonly AVCodec* _codec;
-        private AVPacket* _packet;
-        private AVCodecContext* _context;
-
-        public FFmpegContext()
-        {
-            _codec = ffmpeg.avcodec_find_decoder(AVCodecID.AV_CODEC_ID_H264);
-            _context = ffmpeg.avcodec_alloc_context3(_codec);
-            _context->debug |= ffmpeg.FF_DEBUG_MMCO;
-
-            ffmpeg.avcodec_open2(_context, _codec, null);
-
-            _packet = ffmpeg.av_packet_alloc();
-
-            _h264Decode = Marshal.GetDelegateForFunctionPointer<AVCodec_decode>(_codec->decode.Pointer);
-        }
-
-        static FFmpegContext()
-        {
-            SetRootPath();
-
-            _logFunc = Log;
-
-            // Redirect log output.
-            ffmpeg.av_log_set_level(ffmpeg.AV_LOG_MAX_OFFSET);
-            ffmpeg.av_log_set_callback(_logFunc);
-        }
-
-        private static void SetRootPath()
-        {
-            if (OperatingSystem.IsLinux())
-            {
-                // Configure FFmpeg search path
-                Process lddProcess = Process.Start(new ProcessStartInfo
-                {
-                    FileName               = "/bin/sh",
-                    Arguments              = "-c \"ldd $(which ffmpeg 2>/dev/null) | grep libavfilter\" 2>/dev/null",
-                    UseShellExecute        = false,
-                    RedirectStandardOutput = true
-                });
-
-                string lddOutput = lddProcess.StandardOutput.ReadToEnd();
-
-                lddProcess.WaitForExit();
-                lddProcess.Close();
-
-                if (lddOutput.Contains(" => "))
-                {
-                    ffmpeg.RootPath = Path.GetDirectoryName(lddOutput.Split(" => ")[1]);
-                }
-                else
-                {
-                    Logger.Error?.PrintMsg(LogClass.FFmpeg, "FFmpeg wasn't found. Make sure that you have it installed and up to date.");
-                }
-            }
-        }
-
-        private static void Log(void* p0, int level, string format, byte* vl)
-        {
-            if (level > ffmpeg.av_log_get_level())
-            {
-                return;
-            }
-
-            int lineSize = 1024;
-            byte* lineBuffer = stackalloc byte[lineSize];
-            int printPrefix = 1;
-
-            ffmpeg.av_log_format_line(p0, level, format, vl, lineBuffer, lineSize, &printPrefix);
-
-            string line = Marshal.PtrToStringAnsi((IntPtr)lineBuffer).Trim();
-
-            switch (level)
-            {
-                case ffmpeg.AV_LOG_PANIC:
-                case ffmpeg.AV_LOG_FATAL:
-                case ffmpeg.AV_LOG_ERROR:
-                    Logger.Error?.Print(LogClass.FFmpeg, line);
-                    break;
-                case ffmpeg.AV_LOG_WARNING:
-                    Logger.Warning?.Print(LogClass.FFmpeg, line);
-                    break;
-                case ffmpeg.AV_LOG_INFO:
-                    Logger.Info?.Print(LogClass.FFmpeg, line);
-                    break;
-                case ffmpeg.AV_LOG_VERBOSE:
-                case ffmpeg.AV_LOG_DEBUG:
-                case ffmpeg.AV_LOG_TRACE:
-                    Logger.Debug?.Print(LogClass.FFmpeg, line);
-                    break;
-            }
-        }
-
-        public int DecodeFrame(Surface output, ReadOnlySpan<byte> bitstream)
-        {
-            ffmpeg.av_frame_unref(output.Frame);
-
-            int result;
-            int gotFrame;
-
-            fixed (byte* ptr = bitstream)
-            {
-                _packet->data = ptr;
-                _packet->size = bitstream.Length;
-                result = _h264Decode(_context, output.Frame, &gotFrame, _packet);
-            }
-
-            if (gotFrame == 0)
-            {
-                ffmpeg.av_frame_unref(output.Frame);
-
-                // If the frame was not delivered, it was probably delayed.
-                // Get the next delayed frame by passing a 0 length packet.
-                _packet->data = null;
-                _packet->size = 0;
-                result = _h264Decode(_context, output.Frame, &gotFrame, _packet);
-
-                // We need to set B frames to 0 as we already consumed all delayed frames.
-                // This prevents the decoder from trying to return a delayed frame next time.
-                _context->has_b_frames = 0;
-            }
-
-            ffmpeg.av_packet_unref(_packet);
-
-            if (gotFrame == 0)
-            {
-                ffmpeg.av_frame_unref(output.Frame);
-                return -1;
-            }
-
-            return result < 0 ? result : 0;
-        }
-
-        public void Dispose()
-        {
-            fixed (AVPacket** ppPacket = &_packet)
-            {
-                ffmpeg.av_packet_free(ppPacket);
-            }
-
-            ffmpeg.avcodec_close(_context);
-
-            fixed (AVCodecContext** ppContext = &_context)
-            {
-                ffmpeg.avcodec_free_context(ppContext);
-            }
-        }
-    }
-}