/// <summary>
/// Constructor, taking care of registering GC pinned callbacks
/// properly and turning them into C# events instead. Users of
/// this class can subscribe to On[event name] events.
/// </summary>
public Player()
{
mNativePlayer = NativeMethods.ngw_player_make();
if (mNativePlayer != IntPtr.Zero)
{
var error_delegate = new NativeTypes.ErrorDelegate((msg, player) =>
{
if (OnErrorReceived != null)
{
OnErrorReceived(msg);
}
});
var state_delegate = new NativeTypes.StateDelegate((old, player) =>
{
if (OnStateChanged != null)
{
OnStateChanged(old);
}
});
var stend_delegate = new NativeTypes.StreamEndDelegate((player) =>
{
if (OnStreamEnded != null)
{
OnStreamEnded();
}
});
mErrorCallbackHandle = GCHandle.Alloc(error_delegate, GCHandleType.Pinned);
mStateCallbackHandle = GCHandle.Alloc(state_delegate, GCHandleType.Pinned);
mStEndCallbackHandle = GCHandle.Alloc(stend_delegate, GCHandleType.Pinned);
mFrameDirtyFlagHandle = GCHandle.Alloc(mFrameDirty, GCHandleType.Pinned);
NativeMethods.ngw_player_set_error_callback(mNativePlayer, error_delegate);
NativeMethods.ngw_player_set_state_callback(mNativePlayer, state_delegate);
NativeMethods.ngw_player_set_stream_end_callback(mNativePlayer, stend_delegate);
NativeMethods.ngw_player_set_frame_dirty_flag(mNativePlayer, ref mFrameDirty);
}
}
public static extern void ngw_player_set_state_callback(IntPtr player, NativeTypes.StateDelegate cb);