async partial void OnTakePhoto(UIBarButtonItem sender)
{
sender.Enabled = false;
if (movieWriter == null)
{
// get new file path
var documents = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
var pathToMovie = Path.Combine(documents, "Movie.m4v");
if (File.Exists(pathToMovie))
{
File.Delete(pathToMovie);
}
movieUrl = new NSUrl(pathToMovie, false);
// start recording video
movieWriter = new GPUImageMovieWriter(movieUrl, new CGSize(480, 640));
movieWriter.EncodingLiveVideo = true;
sepiaFilter.AddTarget(movieWriter);
videoCamera.AudioEncodingTarget = movieWriter;
movieWriter.StartRecording();
Console.WriteLine("Video recording started.");
}
else
{
// stop recording video
sepiaFilter.RemoveTarget(movieWriter);
videoCamera.AudioEncodingTarget = null;
await movieWriter.FinishRecordingAsync();
// save to library
var library = new ALAssetsLibrary();
try {
var assetURL = await library.WriteVideoToSavedPhotosAlbumAsync(movieUrl);
Console.WriteLine("Video saved: " + assetURL);
} catch (Exception ex) {
Console.WriteLine("Video save error: " + ex);
}
movieWriter = null;
movieUrl = null;
Console.WriteLine("Video recording completed.");
}
sender.Enabled = true;
}
