public static bool TryGenerateVideoThumbnail(string localFile, CGSize size, out UIImage image)
{
image = null;
try {
const float secondToGet = 1.0f;
using (var player = new MPMoviePlayerController(NSUrl.FromFilename(localFile))) {
image = player.ThumbnailImageAt(
secondToGet,
MPMovieTimeOption.NearestKeyFrame
);
image = UIImageExtensions.ResizeAndDispose(image,
size,
ResizeMethod.AspectFill,
ResizeAlignment.CenterCenter
);
player.Stop();
}
} catch {
return(false);
}
return(true);
}
public async Task <Stream> GetThumbnailAsync(CancellationToken ct, ThumbnailMode mode)
{
var stream = await UIThread.Current.Run(async ict =>
{
try
{
var fileUrl = NSUrl.FromFilename(this.Path);
var movie = new MPMoviePlayerController(fileUrl);
movie.ShouldAutoplay = false;
movie.Stop();
var image = movie.ThumbnailImageAt(1.0, MPMovieTimeOption.Exact);
movie.SafeDispose();
return(image.AsPNG().AsStream());
}
catch (Exception e)
{
this.Log().Error("The thumbnail could not retrieved.", e);
return(null);
}
}, ct);
return(stream);
}
