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using Ryujinx.Common;
using Ryujinx.HLE.HOS.Services.Audio.HardwareOpusDecoderManager;
using Ryujinx.HLE.HOS.Services.Audio.Types;
using System.Runtime.InteropServices;
namespace Ryujinx.HLE.HOS.Services.Audio
{
[Service("hwopus")]
class IHardwareOpusDecoderManager : IpcService
{
public IHardwareOpusDecoderManager(ServiceCtx context) { }
[CommandCmif(0)]
// Initialize(bytes<8, 4>, u32, handle<copy>) -> object<nn::codec::detail::IHardwareOpusDecoder>
public ResultCode Initialize(ServiceCtx context)
{
int sampleRate = context.RequestData.ReadInt32();
int channelsCount = context.RequestData.ReadInt32();
MakeObject(context, new IHardwareOpusDecoder(sampleRate, channelsCount, OpusDecoderFlags.None));
// Close transfer memory immediately as we don't use it.
context.Device.System.KernelContext.Syscall.CloseHandle(context.Request.HandleDesc.ToCopy[0]);
return ResultCode.Success;
}
[CommandCmif(1)]
// GetWorkBufferSize(bytes<8, 4>) -> u32
public ResultCode GetWorkBufferSize(ServiceCtx context)
{
int sampleRate = context.RequestData.ReadInt32();
int channelsCount = context.RequestData.ReadInt32();
int opusDecoderSize = GetOpusDecoderSize(channelsCount);
int frameSize = BitUtils.AlignUp(channelsCount * 1920 / (48000 / sampleRate), 64);
int totalSize = opusDecoderSize + 1536 + frameSize;
context.ResponseData.Write(totalSize);
return ResultCode.Success;
}
[CommandCmif(2)] // 3.0.0+
// InitializeForMultiStream(u32, handle<copy>, buffer<unknown<0x110>, 0x19>) -> object<nn::codec::detail::IHardwareOpusDecoder>
public ResultCode InitializeForMultiStream(ServiceCtx context)
{
ulong parametersAddress = context.Request.PtrBuff[0].Position;
OpusMultiStreamParameters parameters = context.Memory.Read<OpusMultiStreamParameters>(parametersAddress);
MakeObject(context, new IHardwareOpusDecoder(parameters.SampleRate, parameters.ChannelsCount, OpusDecoderFlags.None));
// Close transfer memory immediately as we don't use it.
context.Device.System.KernelContext.Syscall.CloseHandle(context.Request.HandleDesc.ToCopy[0]);
return ResultCode.Success;
}
[CommandCmif(3)] // 3.0.0+
// GetWorkBufferSizeForMultiStream(buffer<unknown<0x110>, 0x19>) -> u32
public ResultCode GetWorkBufferSizeForMultiStream(ServiceCtx context)
{
ulong parametersAddress = context.Request.PtrBuff[0].Position;
OpusMultiStreamParameters parameters = context.Memory.Read<OpusMultiStreamParameters>(parametersAddress);
int opusDecoderSize = GetOpusMultistreamDecoderSize(parameters.NumberOfStreams, parameters.NumberOfStereoStreams);
int streamSize = BitUtils.AlignUp(parameters.NumberOfStreams * 1500, 64);
int frameSize = BitUtils.AlignUp(parameters.ChannelsCount * 1920 / (48000 / parameters.SampleRate), 64);
int totalSize = opusDecoderSize + streamSize + frameSize;
context.ResponseData.Write(totalSize);
return ResultCode.Success;
}
[CommandCmif(4)] // 12.0.0+
// InitializeEx(OpusParametersEx, u32, handle<copy>) -> object<nn::codec::detail::IHardwareOpusDecoder>
public ResultCode InitializeEx(ServiceCtx context)
{
OpusParametersEx parameters = context.RequestData.ReadStruct<OpusParametersEx>();
// UseLargeFrameSize can be ignored due to not relying on fixed size buffers for storing the decoded result.
MakeObject(context, new IHardwareOpusDecoder(parameters.SampleRate, parameters.ChannelsCount, parameters.Flags));
// Close transfer memory immediately as we don't use it.
context.Device.System.KernelContext.Syscall.CloseHandle(context.Request.HandleDesc.ToCopy[0]);
return ResultCode.Success;
}
[CommandCmif(5)] // 12.0.0+
// GetWorkBufferSizeEx(OpusParametersEx) -> u32
public ResultCode GetWorkBufferSizeEx(ServiceCtx context)
{
OpusParametersEx parameters = context.RequestData.ReadStruct<OpusParametersEx>();
int opusDecoderSize = GetOpusDecoderSize(parameters.ChannelsCount);
int frameSizeMono48KHz = parameters.Flags.HasFlag(OpusDecoderFlags.LargeFrameSize) ? 5760 : 1920;
int frameSize = BitUtils.AlignUp(parameters.ChannelsCount * frameSizeMono48KHz / (48000 / parameters.SampleRate), 64);
int totalSize = opusDecoderSize + 1536 + frameSize;
context.ResponseData.Write(totalSize);
return ResultCode.Success;
}
[CommandCmif(6)] // 12.0.0+
// InitializeForMultiStreamEx(u32, handle<copy>, buffer<unknown<0x118>, 0x19>) -> object<nn::codec::detail::IHardwareOpusDecoder>
public ResultCode InitializeForMultiStreamEx(ServiceCtx context)
{
ulong parametersAddress = context.Request.PtrBuff[0].Position;
OpusMultiStreamParametersEx parameters = context.Memory.Read<OpusMultiStreamParametersEx>(parametersAddress);
byte[] mappings = MemoryMarshal.Cast<uint, byte>(parameters.ChannelMappings.AsSpan()).ToArray();
// UseLargeFrameSize can be ignored due to not relying on fixed size buffers for storing the decoded result.
MakeObject(context, new IHardwareOpusDecoder(
parameters.SampleRate,
parameters.ChannelsCount,
parameters.NumberOfStreams,
parameters.NumberOfStereoStreams,
parameters.Flags,
mappings));
// Close transfer memory immediately as we don't use it.
context.Device.System.KernelContext.Syscall.CloseHandle(context.Request.HandleDesc.ToCopy[0]);
return ResultCode.Success;
}
[CommandCmif(7)] // 12.0.0+
// GetWorkBufferSizeForMultiStreamEx(buffer<unknown<0x118>, 0x19>) -> u32
public ResultCode GetWorkBufferSizeForMultiStreamEx(ServiceCtx context)
{
ulong parametersAddress = context.Request.PtrBuff[0].Position;
OpusMultiStreamParametersEx parameters = context.Memory.Read<OpusMultiStreamParametersEx>(parametersAddress);
int opusDecoderSize = GetOpusMultistreamDecoderSize(parameters.NumberOfStreams, parameters.NumberOfStereoStreams);
int frameSizeMono48KHz = parameters.Flags.HasFlag(OpusDecoderFlags.LargeFrameSize) ? 5760 : 1920;
int streamSize = BitUtils.AlignUp(parameters.NumberOfStreams * 1500, 64);
int frameSize = BitUtils.AlignUp(parameters.ChannelsCount * frameSizeMono48KHz / (48000 / parameters.SampleRate), 64);
int totalSize = opusDecoderSize + streamSize + frameSize;
context.ResponseData.Write(totalSize);
return ResultCode.Success;
}
private static int GetOpusMultistreamDecoderSize(int streams, int coupledStreams)
{
if (streams < 1 || coupledStreams > streams || coupledStreams < 0)
{
return 0;
}
int coupledSize = GetOpusDecoderSize(2);
int monoSize = GetOpusDecoderSize(1);
return Align4(monoSize - GetOpusDecoderAllocSize(1)) * (streams - coupledStreams) +
Align4(coupledSize - GetOpusDecoderAllocSize(2)) * coupledStreams + 0xb90c;
}
private static int Align4(int value)
{
return BitUtils.AlignUp(value, 4);
}
private static int GetOpusDecoderSize(int channelsCount)
{
const int SilkDecoderSize = 0x2160;
if (channelsCount < 1 || channelsCount > 2)
{
return 0;
}
int celtDecoderSize = GetCeltDecoderSize(channelsCount);
int opusDecoderSize = GetOpusDecoderAllocSize(channelsCount) | 0x4c;
return opusDecoderSize + SilkDecoderSize + celtDecoderSize;
}
private static int GetOpusDecoderAllocSize(int channelsCount)
{
return (channelsCount * 0x800 + 0x4803) & -0x800;
}
private static int GetCeltDecoderSize(int channelsCount)
{
const int DecodeBufferSize = 0x2030;
const int Overlap = 120;
const int EBandsCount = 21;
return (DecodeBufferSize + Overlap * 4) * channelsCount + EBandsCount * 16 + 0x50;
}
}
}
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