/// <summary>
/// Gets the number of tracks.
/// </summary>
/// <returns>The number of tracks.</returns>
/// <remarks>
/// The <see cref="Player"/> that owns this instance must be in the <see cref="PlayerState.Ready"/>,
/// <see cref="PlayerState.Playing"/>, or <see cref="PlayerState.Paused"/> state.
/// </remarks>
/// <exception cref="ObjectDisposedException">The <see cref="Player"/> that this instance belongs to has been disposed of.</exception>
/// <exception cref="InvalidOperationException">The <see cref="Player"/> that this instance belongs to is not in the valid state.</exception>
/// <since_tizen> 3 </since_tizen>
public int GetCount()
{
_owner.ValidatePlayerState(PlayerState.Ready, PlayerState.Playing, PlayerState.Paused);
NativePlayer.GetTrackCount(_owner.Handle, _streamType, out var count).
ThrowIfFailed(_owner, "Failed to get count of the track");
Log.Info(PlayerLog.Tag, "get count : " + count);
return(count);
}