66 lines
1.8 KiB
C#
66 lines
1.8 KiB
C#
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using System.Runtime.InteropServices;
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namespace Robovoice.Tts.LibPiper;
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[StructLayout(LayoutKind.Sequential)]
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internal struct PiperSynthesizeOptions
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{
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public int SpeakerId;
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public float LengthScale;
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public float NoiseScale;
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public float NoiseWScale;
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}
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[StructLayout(LayoutKind.Sequential)]
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internal struct PiperAudioChunk
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{
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public IntPtr Samples;
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public nuint NumSamples;
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public int SampleRate;
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[MarshalAs(UnmanagedType.U1)]
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public bool IsLast;
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public IntPtr Phonemes;
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public nuint NumPhonemes;
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public IntPtr PhonemeIds;
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public nuint NumPhonemeIds;
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public IntPtr Alignments;
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public nuint NumAlignments;
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}
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internal static class PiperNative
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{
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private const string LibName = "piper";
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public const int PiperOk = 0;
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public const int PiperDone = 1;
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public const int PiperErrGeneric = -1;
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[DllImport(LibName, CallingConvention = CallingConvention.Cdecl)]
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public static extern IntPtr piper_create(
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IntPtr modelPath,
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IntPtr configPath,
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IntPtr espeakDataPath);
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[DllImport(LibName, CallingConvention = CallingConvention.Cdecl)]
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public static extern void piper_free(IntPtr synth);
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[DllImport(LibName, CallingConvention = CallingConvention.Cdecl)]
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public static extern PiperSynthesizeOptions piper_default_synthesize_options(IntPtr synth);
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[DllImport(LibName, CallingConvention = CallingConvention.Cdecl)]
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public static extern int piper_synthesize_start(
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IntPtr synth,
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IntPtr text,
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in PiperSynthesizeOptions options);
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[DllImport(LibName, CallingConvention = CallingConvention.Cdecl)]
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public static extern int piper_synthesize_next(
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IntPtr synth,
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out PiperAudioChunk chunk);
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[DllImport(LibName, CallingConvention = CallingConvention.Cdecl)]
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public static extern IntPtr piper_version();
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}
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