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a0720b5681
* Refactoring HOS folder structure Refactoring HOS folder structure: - Added some subfolders when needed (Following structure decided in private). - Added some `Types` folders when needed. - Little cleanup here and there. - Add services placeholders for every HOS services (close #766 and #753). * Remove Types namespaces
65 lines
No EOL
2.1 KiB
C#
65 lines
No EOL
2.1 KiB
C#
using Ryujinx.HLE.HOS.Services.Audio.HardwareOpusDecoderManager;
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namespace Ryujinx.HLE.HOS.Services.Audio
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{
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[Service("hwopus")]
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class IHardwareOpusDecoderManager : IpcService
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{
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public IHardwareOpusDecoderManager(ServiceCtx context) { }
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[Command(0)]
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// Initialize(bytes<8, 4>, u32, handle<copy>) -> object<nn::codec::detail::IHardwareOpusDecoder>
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public ResultCode Initialize(ServiceCtx context)
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{
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int sampleRate = context.RequestData.ReadInt32();
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int channelsCount = context.RequestData.ReadInt32();
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MakeObject(context, new IHardwareOpusDecoder(sampleRate, channelsCount));
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return ResultCode.Success;
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}
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[Command(1)]
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// GetWorkBufferSize(bytes<8, 4>) -> u32
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public ResultCode GetWorkBufferSize(ServiceCtx context)
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{
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// Note: The sample rate is ignored because it is fixed to 48KHz.
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int sampleRate = context.RequestData.ReadInt32();
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int channelsCount = context.RequestData.ReadInt32();
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context.ResponseData.Write(GetOpusDecoderSize(channelsCount));
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return ResultCode.Success;
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}
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private static int GetOpusDecoderSize(int channelsCount)
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{
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const int silkDecoderSize = 0x2198;
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if (channelsCount < 1 || channelsCount > 2)
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{
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return 0;
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}
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int celtDecoderSize = GetCeltDecoderSize(channelsCount);
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int opusDecoderSize = (channelsCount * 0x800 + 0x4807) & -0x800 | 0x50;
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return opusDecoderSize + silkDecoderSize + celtDecoderSize;
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}
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private static int GetCeltDecoderSize(int channelsCount)
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{
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const int decodeBufferSize = 0x2030;
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const int celtDecoderSize = 0x58;
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const int celtSigSize = 0x4;
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const int overlap = 120;
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const int eBandsCount = 21;
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return (decodeBufferSize + overlap * 4) * channelsCount +
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eBandsCount * 16 +
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celtDecoderSize +
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celtSigSize;
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}
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}
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} |