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NVDEC (H264): Use separate contexts per channel and decode frames in DTS order (#2671)

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* 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
This commit is contained in:
gdkchan 2021-09-28 19:43:40 -03:00 • committed by GitHub
parent 0d23504e30
commit f4f496cb48
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GPG key ID: 4AEE18F83AFDEB23
18 changed files with 358 additions and 200 deletions
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45
Ryujinx.Graphics.Nvdec/NvdecDevice.cs
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@ -2,17 +2,20 @@
using Ryujinx.Graphics.Device;
using Ryujinx.Graphics.Gpu.Memory;
using Ryujinx.Graphics.Nvdec.Image;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Threading;
namespace Ryujinx.Graphics.Nvdec
{
public class NvdecDevice : IDeviceState
public class NvdecDevice : IDeviceStateWithContext
{
private readonly ResourceManager _rm;
private readonly DeviceState<NvdecRegisters> _state;
public event Action<FrameDecodedEventArgs> FrameDecoded;
private long _currentId;
private ConcurrentDictionary<long, NvdecDecoderContext> _contexts;
private NvdecDecoderContext _currentContext;
public NvdecDevice(MemoryManager gmm)
{
@ -21,6 +24,33 @@ namespace Ryujinx.Graphics.Nvdec
{
{ nameof(NvdecRegisters.Execute), new RwCallback(Execute, null) }
});
_contexts = new ConcurrentDictionary<long, NvdecDecoderContext>();
}
public long CreateContext()
{
long id = Interlocked.Increment(ref _currentId);
_contexts.TryAdd(id, new NvdecDecoderContext());
return id;
}
public void DestroyContext(long id)
{
if (_contexts.TryRemove(id, out var context))
{
context.Dispose();
}
_rm.Cache.Trim();
}
public void BindContext(long id)
{
if (_contexts.TryGetValue(id, out var context))
{
_currentContext = context;
}
}
public int Read(int offset) => _state.Read(offset);
@ -36,20 +66,15 @@ namespace Ryujinx.Graphics.Nvdec
switch (codecId)
{
case CodecId.H264:
H264Decoder.Decode(this, _rm, ref _state.State);
H264Decoder.Decode(_currentContext, _rm, ref _state.State);
break;
case CodecId.Vp9:
Vp9Decoder.Decode(this, _rm, ref _state.State);
Vp9Decoder.Decode(_rm, ref _state.State);
break;
default:
Logger.Error?.Print(LogClass.Nvdec, $"Unsupported codec \"{codecId}\".");
break;
}
}
internal void OnFrameDecoded(CodecId codecId, uint lumaOffset, uint chromaOffset)
{
FrameDecoded?.Invoke(new FrameDecodedEventArgs(codecId, lumaOffset, chromaOffset));
}
}
}