mirror of
https://github.com/Ryujinx/Ryujinx.git
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* 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>
160 lines
5.7 KiB
C#
160 lines
5.7 KiB
C#
using Ryujinx.Common.Memory;
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using Ryujinx.Graphics.Video;
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using System;
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namespace Ryujinx.Graphics.Nvdec.H264
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{
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static class SpsAndPpsReconstruction
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{
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public static Span<byte> Reconstruct(ref H264PictureInfo pictureInfo, byte[] workBuffer)
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{
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H264BitStreamWriter writer = new H264BitStreamWriter(workBuffer);
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// Sequence Parameter Set.
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writer.WriteU(1, 24);
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writer.WriteU(0, 1);
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writer.WriteU(3, 2);
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writer.WriteU(7, 5);
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writer.WriteU(100, 8); // Profile idc
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writer.WriteU(0, 8); // Reserved
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writer.WriteU(31, 8); // Level idc
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writer.WriteUe(0); // Seq parameter set id
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writer.WriteUe(pictureInfo.ChromaFormatIdc);
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if (pictureInfo.ChromaFormatIdc == 3)
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{
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writer.WriteBit(false); // Separate colour plane flag
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}
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writer.WriteUe(0); // Bit depth luma minus 8
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writer.WriteUe(0); // Bit depth chroma minus 8
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writer.WriteBit(pictureInfo.QpprimeYZeroTransformBypassFlag);
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writer.WriteBit(false); // Scaling matrix present flag
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writer.WriteUe(pictureInfo.Log2MaxFrameNumMinus4);
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writer.WriteUe(pictureInfo.PicOrderCntType);
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if (pictureInfo.PicOrderCntType == 0)
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{
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writer.WriteUe(pictureInfo.Log2MaxPicOrderCntLsbMinus4);
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}
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else if (pictureInfo.PicOrderCntType == 1)
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{
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writer.WriteBit(pictureInfo.DeltaPicOrderAlwaysZeroFlag);
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writer.WriteSe(0); // Offset for non-ref pic
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writer.WriteSe(0); // Offset for top to bottom field
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writer.WriteUe(0); // Num ref frames in pic order cnt cycle
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}
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writer.WriteUe(16); // Max num ref frames
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writer.WriteBit(false); // Gaps in frame num value allowed flag
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writer.WriteUe(pictureInfo.PicWidthInMbsMinus1);
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writer.WriteUe(pictureInfo.PicHeightInMapUnitsMinus1);
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writer.WriteBit(pictureInfo.FrameMbsOnlyFlag);
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if (!pictureInfo.FrameMbsOnlyFlag)
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{
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writer.WriteBit(pictureInfo.MbAdaptiveFrameFieldFlag);
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}
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writer.WriteBit(pictureInfo.Direct8x8InferenceFlag);
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writer.WriteBit(false); // Frame cropping flag
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writer.WriteBit(false); // VUI parameter present flag
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writer.End();
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// Picture Parameter Set.
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writer.WriteU(1, 24);
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writer.WriteU(0, 1);
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writer.WriteU(3, 2);
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writer.WriteU(8, 5);
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writer.WriteUe(0); // Pic parameter set id
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writer.WriteUe(0); // Seq parameter set id
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writer.WriteBit(pictureInfo.EntropyCodingModeFlag);
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writer.WriteBit(false); // Bottom field pic order in frame present flag
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writer.WriteUe(0); // Num slice groups minus 1
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writer.WriteUe(pictureInfo.NumRefIdxL0ActiveMinus1);
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writer.WriteUe(pictureInfo.NumRefIdxL1ActiveMinus1);
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writer.WriteBit(pictureInfo.WeightedPredFlag);
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writer.WriteU(pictureInfo.WeightedBipredIdc, 2);
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writer.WriteSe(pictureInfo.PicInitQpMinus26);
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writer.WriteSe(0); // Pic init qs minus 26
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writer.WriteSe(pictureInfo.ChromaQpIndexOffset);
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writer.WriteBit(pictureInfo.DeblockingFilterControlPresentFlag);
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writer.WriteBit(pictureInfo.ConstrainedIntraPredFlag);
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writer.WriteBit(pictureInfo.RedundantPicCntPresentFlag);
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writer.WriteBit(pictureInfo.Transform8x8ModeFlag);
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writer.WriteBit(pictureInfo.ScalingMatrixPresent);
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if (pictureInfo.ScalingMatrixPresent)
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{
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for (int index = 0; index < 6; index++)
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{
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writer.WriteBit(true);
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WriteScalingList(ref writer, pictureInfo.ScalingLists4x4[index]);
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}
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if (pictureInfo.Transform8x8ModeFlag)
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{
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for (int index = 0; index < 2; index++)
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{
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writer.WriteBit(true);
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WriteScalingList(ref writer, pictureInfo.ScalingLists8x8[index]);
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}
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}
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}
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writer.WriteSe(pictureInfo.SecondChromaQpIndexOffset);
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writer.End();
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return writer.AsSpan();
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}
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// ZigZag LUTs from libavcodec.
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private static readonly byte[] ZigZagDirect = new byte[]
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{
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0, 1, 8, 16, 9, 2, 3, 10,
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17, 24, 32, 25, 18, 11, 4, 5,
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12, 19, 26, 33, 40, 48, 41, 34,
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27, 20, 13, 6, 7, 14, 21, 28,
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35, 42, 49, 56, 57, 50, 43, 36,
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29, 22, 15, 23, 30, 37, 44, 51,
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58, 59, 52, 45, 38, 31, 39, 46,
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53, 60, 61, 54, 47, 55, 62, 63
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};
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private static readonly byte[] ZigZagScan = new byte[]
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{
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0 + 0 * 4, 1 + 0 * 4, 0 + 1 * 4, 0 + 2 * 4,
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1 + 1 * 4, 2 + 0 * 4, 3 + 0 * 4, 2 + 1 * 4,
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1 + 2 * 4, 0 + 3 * 4, 1 + 3 * 4, 2 + 2 * 4,
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3 + 1 * 4, 3 + 2 * 4, 2 + 3 * 4, 3 + 3 * 4
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};
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private static void WriteScalingList(ref H264BitStreamWriter writer, IArray<byte> list)
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{
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byte[] scan = list.Length == 16 ? ZigZagScan : ZigZagDirect;
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int lastScale = 8;
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for (int index = 0; index < list.Length; index++)
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{
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byte value = list[scan[index]];
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int deltaScale = value - lastScale;
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writer.WriteSe(deltaScale);
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lastScale = value;
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}
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}
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}
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}
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