/// <summary>
/// Captures a video frame, asynchronously.
/// </summary>
/// <returns>A task that represents the asynchronous capture operation.</returns>
/// <feature>http://tizen.org/feature/multimedia.raw_video</feature>
/// <remarks>The player must be in the <see cref="PlayerState.Playing"/> or <see cref="PlayerState.Paused"/> state.</remarks>
/// <exception cref="ObjectDisposedException">The player has already been disposed of.</exception>
/// <exception cref="InvalidOperationException">The player is not in the valid state.</exception>
/// <exception cref="NotSupportedException">The required feature is not supported.</exception>
/// <since_tizen> 3 </since_tizen>
public async Task <CapturedFrame> CaptureVideoAsync()
{
ValidationUtil.ValidateFeatureSupported(PlayerFeatures.RawVideo);
ValidatePlayerState(PlayerState.Playing, PlayerState.Paused);
TaskCompletionSource <CapturedFrame> t = new TaskCompletionSource <CapturedFrame>();
NativePlayer.VideoCaptureCallback cb = (data, width, height, size, _) =>
{
Debug.Assert(size <= int.MaxValue);
byte[] buf = new byte[size];
Marshal.Copy(data, buf, 0, (int)size);
t.TrySetResult(new CapturedFrame(buf, width, height));
};
using (var cbKeeper = ObjectKeeper.Get(cb))
{
NativePlayer.CaptureVideo(Handle, cb)
.ThrowIfFailed(this, "Failed to capture the video");
return(await t.Task);
}
}
