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| using System;
| using System.Runtime.InteropServices;
|
| namespace UnityOpus {
| public enum SamplingFrequency : int {
| Frequency_8000 = 8000,
| Frequency_12000 = 12000,
| Frequency_16000 = 16000,
| Frequency_24000 = 24000,
| Frequency_48000 = 48000,
| }
|
| public enum NumChannels : int {
| Mono = 1,
| Stereo = 2,
| }
|
| public enum OpusApplication : int {
| VoIP = 2048,
| Audio = 2049,
| RestrictedLowDelay = 2051,
| }
|
| public enum OpusSignal : int {
| Auto = -1000,
| Voice = 3001,
| Music = 3002
| }
|
| public enum ErrorCode {
| OK = 0,
| BadArg = -1,
| BufferTooSmall = -2,
| InternalError = -3,
| InvalidPacket = -4,
| Unimplemented = -5,
| InvalidState = -6,
| AllocFail = -7,
| }
|
| public class Library {
| public const int maximumPacketDuration = 5760;
|
| #if UNITY_ANDROID
| const string dllName = "unityopus";
| #else
| const string dllName = "UnityOpus";
| #endif
|
| [DllImport(dllName)]
| public static extern IntPtr OpusEncoderCreate(
| SamplingFrequency samplingFrequency,
| NumChannels channels,
| OpusApplication application,
| out ErrorCode error);
|
| [DllImport(dllName)]
| public static extern int OpusEncode(
| IntPtr encoder,
| short[] pcm,
| int frameSize,
| byte[] data,
| int maxDataBytes);
|
| [DllImport(dllName)]
| public static extern int OpusEncodeFloat(
| IntPtr encoder,
| float[] pcm,
| int frameSize,
| byte[] data,
| int maxDataBytes);
|
| [DllImport(dllName)]
| public static extern void OpusEncoderDestroy(
| IntPtr encoder);
|
| [DllImport(dllName)]
| public static extern int OpusEncoderSetBitrate(
| IntPtr encoder,
| int bitrate);
|
| [DllImport(dllName)]
| public static extern int OpusEncoderSetComplexity(
| IntPtr encoder,
| int complexity);
|
| [DllImport(dllName)]
| public static extern int OpusEncoderSetSignal(
| IntPtr encoder,
| OpusSignal signal);
|
| [DllImport(dllName)]
| public static extern IntPtr OpusDecoderCreate(
| SamplingFrequency samplingFrequency,
| NumChannels channels,
| out ErrorCode error);
|
| [DllImport(dllName)]
| public static extern int OpusDecode(
| IntPtr decoder,
| byte[] data,
| int len,
| short[] pcm,
| int frameSize,
| int decodeFec);
|
| [DllImport(dllName)]
| public static extern int OpusDecodeFloat(
| IntPtr decoder,
| byte[] data,
| int len,
| float[] pcm,
| int frameSize,
| int decodeFec);
|
| [DllImport(dllName)]
| public static extern void OpusDecoderDestroy(
| IntPtr decoder);
|
| [DllImport(dllName)]
| public static extern void OpusPcmSoftClip(
| float[] pcm,
| int frameSize,
| NumChannels channels,
| float[] softclipMem);
| }
| }
|
|
