mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-11-28 05:44:03 +00:00
f4f496cb48
* 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
40 lines
1.4 KiB
C#
40 lines
1.4 KiB
C#
using Ryujinx.Graphics.Nvdec.H264;
|
|
using Ryujinx.Graphics.Nvdec.Image;
|
|
using Ryujinx.Graphics.Nvdec.Types.H264;
|
|
using Ryujinx.Graphics.Video;
|
|
using System;
|
|
|
|
namespace Ryujinx.Graphics.Nvdec
|
|
{
|
|
static class H264Decoder
|
|
{
|
|
private const int MbSizeInPixels = 16;
|
|
|
|
public unsafe static void Decode(NvdecDecoderContext context, ResourceManager rm, ref NvdecRegisters state)
|
|
{
|
|
PictureInfo pictureInfo = rm.Gmm.DeviceRead<PictureInfo>(state.SetPictureInfoOffset);
|
|
H264PictureInfo info = pictureInfo.Convert();
|
|
|
|
ReadOnlySpan<byte> bitstream = rm.Gmm.DeviceGetSpan(state.SetBitstreamOffset, (int)pictureInfo.BitstreamSize);
|
|
|
|
int width = (int)pictureInfo.PicWidthInMbs * MbSizeInPixels;
|
|
int height = (int)pictureInfo.PicHeightInMbs * MbSizeInPixels;
|
|
|
|
int surfaceIndex = (int)pictureInfo.OutputSurfaceIndex;
|
|
|
|
uint lumaOffset = state.SetSurfaceLumaOffset[surfaceIndex];
|
|
uint chromaOffset = state.SetSurfaceChromaOffset[surfaceIndex];
|
|
|
|
Decoder decoder = context.GetDecoder();
|
|
|
|
ISurface outputSurface = rm.Cache.Get(decoder, 0, 0, width, height);
|
|
|
|
if (decoder.Decode(ref info, outputSurface, bitstream))
|
|
{
|
|
SurfaceWriter.Write(rm.Gmm, outputSurface, lumaOffset, chromaOffset);
|
|
}
|
|
|
|
rm.Cache.Put(outputSurface);
|
|
}
|
|
}
|
|
}
|