src/Tizen.Multimedia.StreamRecorder/Interop/Interop.StreamRecorder.cs

   1 using System;
   2 using System.Runtime.InteropServices;
   3 using Tizen.Multimedia;
   4
   5 internal static partial class Interop
   6 {
   7     internal static partial class StreamRecorder
   8     {
   9         [DllImport(Libraries.StreamRecorder, EntryPoint = "streamrecorder_create")]
  10         internal static extern StreamRecorderErrorCode Create(out StreamRecorderHandle handle);
  11
  12         [DllImport(Libraries.StreamRecorder, EntryPoint = "streamrecorder_prepare")]
  13         internal static extern StreamRecorderErrorCode Prepare(StreamRecorderHandle handle);
  14
  15         [DllImport(Libraries.StreamRecorder, EntryPoint = "streamrecorder_unprepare")]
  16         internal static extern StreamRecorderErrorCode Unprepare(StreamRecorderHandle handle);
  17
  18         [DllImport(Libraries.StreamRecorder, EntryPoint = "streamrecorder_start")]
  19         internal static extern StreamRecorderErrorCode Start(StreamRecorderHandle handle);
  20
  21         [DllImport(Libraries.StreamRecorder, EntryPoint = "streamrecorder_pause")]
  22         internal static extern StreamRecorderErrorCode Pause(StreamRecorderHandle handle);
  23
  24         [DllImport(Libraries.StreamRecorder, EntryPoint = "streamrecorder_commit")]
  25         internal static extern StreamRecorderErrorCode Commit(StreamRecorderHandle handle);
  26
  27         [DllImport(Libraries.StreamRecorder, EntryPoint = "streamrecorder_cancel")]
  28         internal static extern StreamRecorderErrorCode Cancel(StreamRecorderHandle handle);
  29
  30         [DllImport(Libraries.StreamRecorder, EntryPoint = "streamrecorder_push_stream_buffer")]
  31         internal static extern StreamRecorderErrorCode PushStreamBuffer(StreamRecorderHandle handle,
  32             IntPtr mediaPacketHandle);
  33
  34         [DllImport(Libraries.StreamRecorder, EntryPoint = "streamrecorder_enable_source_buffer")]
  35         internal static extern StreamRecorderErrorCode EnableSourceBuffer(StreamRecorderHandle handle,
  36             StreamRecorderSourceType type);
  37
  38         [DllImport(Libraries.StreamRecorder, EntryPoint = "streamrecorder_get_state")]
  39         internal static extern StreamRecorderErrorCode GetState(StreamRecorderHandle handle, out RecorderState state);
  40     }
  41
  42     internal class StreamRecorderHandle : SafeHandle
  43     {
  44         [DllImport(Libraries.StreamRecorder, EntryPoint = "streamrecorder_destroy")]
  45         private static extern StreamRecorderErrorCode Destroy(IntPtr handle);
  46
  47         [DllImport(Libraries.StreamRecorder, EntryPoint = "streamrecorder_cancel")]
  48         private static extern StreamRecorderErrorCode Cancel(IntPtr handle);
  49
  50         [DllImport(Libraries.StreamRecorder, EntryPoint = "streamrecorder_unprepare")]
  51         private static extern StreamRecorderErrorCode Unprepare(IntPtr handle);
  52
  53         protected StreamRecorderHandle() : base(IntPtr.Zero, true)
  54         {
  55         }
  56
  57         public override bool IsInvalid => handle == IntPtr.Zero;
  58
  59         protected override bool ReleaseHandle()
  60         {
  61             try
  62             {
  63                 Cancel(handle).Ignore(StreamRecorderErrorCode.InvalidState).ThrowIfError("Failed to cancel.");
  64                 Unprepare(handle).Ignore(StreamRecorderErrorCode.InvalidState).ThrowIfError("Failed to unprepare.");
  65                 Destroy(handle).ThrowIfError("Failed to destory.");
  66
  67                 return true;
  68             }
  69             catch (Exception e)
  70             {
  71                 Tizen.Log.Debug(GetType().FullName, $"Failed to release native RecorderHandle; {e.Message}");
  72
  73                 return false;
  74             }
  75         }
  76     }
  77 }