7ffe7f8442
* dotnet format style --severity info Some changes were manually reverted. * Address or silence dotnet format CA1806 and a few CA1854 warnings * Address most dotnet format whitespace warnings * Apply dotnet format whitespace formatting A few of them have been manually reverted and the corresponding warning was silenced * Add comments to disabled warnings * Simplify properties and array initialization, Use const when possible, Remove trailing commas * Address IDE0251 warnings * Revert "Simplify properties and array initialization, Use const when possible, Remove trailing commas" This reverts commit 9462e4136c0a2100dc28b20cf9542e06790aa67e. * dotnet format whitespace after rebase * First dotnet format pass
56 lines
1.7 KiB
C#
56 lines
1.7 KiB
C#
using Ryujinx.Graphics.Nvdec.FFmpeg.Native;
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using Ryujinx.Graphics.Video;
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using System;
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namespace Ryujinx.Graphics.Nvdec.FFmpeg.H264
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{
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public sealed class Decoder : IH264Decoder
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{
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public bool IsHardwareAccelerated => false;
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private const int WorkBufferSize = 0x200;
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private readonly byte[] _workBuffer = new byte[WorkBufferSize];
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private FFmpegContext _context = new(AVCodecID.AV_CODEC_ID_H264);
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private int _oldOutputWidth;
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private int _oldOutputHeight;
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public ISurface CreateSurface(int width, int height)
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{
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return new Surface(width, height);
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}
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public bool Decode(ref H264PictureInfo pictureInfo, ISurface output, ReadOnlySpan<byte> bitstream)
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{
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Surface outSurf = (Surface)output;
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if (outSurf.RequestedWidth != _oldOutputWidth ||
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outSurf.RequestedHeight != _oldOutputHeight)
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{
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_context.Dispose();
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_context = new FFmpegContext(AVCodecID.AV_CODEC_ID_H264);
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_oldOutputWidth = outSurf.RequestedWidth;
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_oldOutputHeight = outSurf.RequestedHeight;
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}
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Span<byte> bs = Prepend(bitstream, SpsAndPpsReconstruction.Reconstruct(ref pictureInfo, _workBuffer));
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return _context.DecodeFrame(outSurf, bs) == 0;
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}
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private static byte[] Prepend(ReadOnlySpan<byte> data, ReadOnlySpan<byte> prep)
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{
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byte[] output = new byte[data.Length + prep.Length];
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prep.CopyTo(output);
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data.CopyTo(new Span<byte>(output)[prep.Length..]);
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return output;
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}
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public void Dispose() => _context.Dispose();
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}
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}
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