src/Tizen.Multimedia.Recorder/Interop/Interop.Recorder.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 using Tizen.Multimedia;
  20
  21 internal static partial class Interop
  22 {
  23
  24     internal static partial class Recorder
  25     {
  26         [DllImport(Libraries.Recorder, EntryPoint = "recorder_create_audiorecorder")]
  27         internal static extern RecorderErrorCode Create(out RecorderHandle handle);
  28
  29         [DllImport(Libraries.Recorder, EntryPoint = "recorder_create_videorecorder")]
  30         internal static extern RecorderErrorCode CreateVideo(IntPtr cameraHandle, out RecorderHandle handle);
  31
  32         [DllImport(Libraries.Recorder, EntryPoint = "recorder_prepare")]
  33         internal static extern RecorderErrorCode Prepare(RecorderHandle handle);
  34
  35         [DllImport(Libraries.Recorder, EntryPoint = "recorder_unprepare")]
  36         internal static extern RecorderErrorCode Unprepare(RecorderHandle handle);
  37
  38         [DllImport(Libraries.Recorder, EntryPoint = "recorder_start")]
  39         internal static extern RecorderErrorCode Start(RecorderHandle handle);
  40
  41         [DllImport(Libraries.Recorder, EntryPoint = "recorder_pause")]
  42         internal static extern RecorderErrorCode Pause(RecorderHandle handle);
  43
  44         [DllImport(Libraries.Recorder, EntryPoint = "recorder_commit")]
  45         internal static extern RecorderErrorCode Commit(RecorderHandle handle);
  46
  47         [DllImport(Libraries.Recorder, EntryPoint = "recorder_cancel")]
  48         internal static extern RecorderErrorCode Cancel(RecorderHandle handle);
  49
  50         [DllImport(Libraries.Recorder, EntryPoint = "recorder_get_state")]
  51         internal static extern RecorderErrorCode GetState(RecorderHandle handle, out RecorderState state);
  52
  53         [DllImport(Libraries.Recorder, EntryPoint = "recorder_set_sound_stream_info")]
  54         internal static extern RecorderErrorCode SetAudioStreamPolicy(RecorderHandle handle, AudioStreamPolicyHandle streamInfoHandle);
  55
  56         [DllImport(Libraries.Recorder, EntryPoint = "recorder_get_device_state")]
  57         internal static extern RecorderErrorCode GetDeviceState(RecorderType type, out RecorderDeviceState state);
  58     }
  59
  60     internal class RecorderHandle : SafeHandle
  61     {
  62         [DllImport(Libraries.Recorder, EntryPoint = "recorder_destroy")]
  63         private static extern RecorderErrorCode Destroy(IntPtr handle);
  64
  65         [DllImport(Libraries.Recorder, EntryPoint = "recorder_cancel")]
  66         private static extern RecorderErrorCode Cancel(IntPtr handle);
  67
  68         [DllImport(Libraries.Recorder, EntryPoint = "recorder_unprepare")]
  69         private static extern RecorderErrorCode Unprepare(IntPtr handle);
  70
  71         protected RecorderHandle() : base(IntPtr.Zero, true)
  72         {
  73         }
  74
  75         public override bool IsInvalid => handle == IntPtr.Zero;
  76
  77         protected override bool ReleaseHandle()
  78         {
  79             Cancel(handle).Ignore(RecorderErrorCode.InvalidState).ThrowIfError("Failed to cancel");
  80             Unprepare(handle).Ignore(RecorderErrorCode.InvalidState).ThrowIfError("Failed to unprepare");
  81
  82             var ret = Destroy(handle);
  83             if (ret != RecorderErrorCode.None)
  84             {
  85                 Tizen.Log.Debug(GetType().FullName, $"Failed to release native RecorderHandle.");
  86
  87                 return false;
  88             }
  89             return true;
  90         }
  91     }
  92 }