src/Tizen.Multimedia.AudioIO/Interop/Interop.AudioIO.cs

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the License);
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an AS IS BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 using System;
  18 using System.Runtime.InteropServices;
  19
  20 internal static partial class Interop
  21 {
  22     internal static partial class AudioIO
  23     {
  24         [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
  25         public delegate void AudioStreamCallback(IntPtr handle, uint nbytes, IntPtr userdata);
  26
  27         [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
  28         public delegate void AudioStateChangedCallback(IntPtr handle, int previous, int current, bool byPolicy, IntPtr userData);
  29
  30         internal static partial class AudioInput
  31         {
  32             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_set_state_changed_cb")]
  33             internal static extern int SetStateChangedCallback(IntPtr handle, AudioStateChangedCallback callback, IntPtr user_data);
  34
  35             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_set_stream_cb")]
  36             internal static extern int SetStreamCallback(IntPtr handle, AudioStreamCallback callback, IntPtr user_data);
  37
  38             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_create")]
  39             internal static extern int Create(int sampleRate, int channel, int type, out IntPtr handle);
  40
  41             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_destroy")]
  42             internal static extern int Destroy(IntPtr handle);
  43
  44             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_set_sound_stream_info")]
  45             internal static extern int SetStreamInfo(IntPtr handle, IntPtr streamInfoHandle);
  46
  47             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_prepare")]
  48             internal static extern int Prepare(IntPtr handle);
  49
  50             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_unprepare")]
  51             internal static extern int Unprepare(IntPtr handle);
  52
  53             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_pause")]
  54             internal static extern int Pause(IntPtr handle);
  55
  56             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_resume")]
  57             internal static extern int Resume(IntPtr handle);
  58
  59             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_flush")]
  60             internal static extern int Flush(IntPtr handle);
  61
  62             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_read")]
  63             internal static extern int Read(IntPtr handle, byte[] buffer, int length);
  64
  65             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_get_buffer_size")]
  66             internal static extern int GetBufferSize(IntPtr handle, out int size);
  67
  68             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_get_sample_rate")]
  69             internal static extern int GetSampleRate(IntPtr handle, out int sampleRate);
  70
  71             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_get_channel")]
  72             internal static extern int GetChannel(IntPtr handle, out int channel);
  73
  74             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_get_sample_type")]
  75             internal static extern int GetSampleType(IntPtr handle, out int sampleType);
  76
  77             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_peek")]
  78             internal static extern int Peek(IntPtr handle, out IntPtr buffer, ref uint length);
  79
  80             [DllImport(Libraries.AudioIO, EntryPoint = "audio_in_drop")]
  81             internal static extern int Drop(IntPtr handle);
  82         }
  83         internal static partial class AudioOutput
  84         {
  85             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_set_state_changed_cb")]
  86             internal static extern int SetStateChangedCallback(IntPtr handle, AudioStateChangedCallback callback, IntPtr user_data);
  87
  88             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_set_stream_cb")]
  89             internal static extern int SetStreamChangedCallback(IntPtr handle, AudioStreamCallback callback, IntPtr user_data);
  90
  91             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_create_new")]
  92             internal static extern int Create(int sampleRate, int channel, int type, out IntPtr handle);
  93
  94             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_destroy")]
  95             internal static extern int Destroy(IntPtr handle);
  96
  97             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_drain")]
  98             internal static extern int Drain(IntPtr handle);
  99
 100             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_flush")]
 101             internal static extern int Flush(IntPtr handle);
 102
 103             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_get_buffer_size")]
 104             internal static extern int GetBufferSize(IntPtr handle, out int size);
 105
 106             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_get_channel")]
 107             internal static extern int GetChannel(IntPtr handle, out int channel);
 108
 109             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_get_sample_rate")]
 110             internal static extern int GetSampleRate(IntPtr handle, out int sampleRate);
 111
 112             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_get_sample_type")]
 113             internal static extern int GetSampleType(IntPtr handle, out int sampleType);
 114
 115             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_get_sound_type")]
 116             internal static extern int GetSoundType(IntPtr handle, out int soundType);
 117
 118             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_pause")]
 119             internal static extern int Pause(IntPtr handle);
 120
 121             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_prepare")]
 122             internal static extern int Prepare(IntPtr handle);
 123
 124             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_resume")]
 125             internal static extern int Resume(IntPtr handle);
 126
 127             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_set_sound_stream_info")]
 128             internal static extern int SetStreamInfo(IntPtr handle, IntPtr streamInfoHandle);
 129
 130             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_unprepare")]
 131             internal static extern int Unprepare(IntPtr handle);
 132
 133             [DllImport(Libraries.AudioIO, EntryPoint = "audio_out_write")]
 134             internal static extern int Write(IntPtr handle, byte[] buffer, uint length);
 135         }
 136     }
 137 }