ImageSource IVideoUtils.GetVideoThumbnail(string url)
{
NSUrl videoUrl = NSUrl.CreateFileUrl(url, null);
var asset = AVAsset.FromUrl(videoUrl);
var imageGenerator = AVAssetImageGenerator.FromAsset(asset);
imageGenerator.AppliesPreferredTrackTransform = true;
var seconds = asset.Duration.Seconds;
CoreMedia.CMTime actualTime;
CoreMedia.CMTime cmTime = asset.Duration;
var timeScale = asset.Duration.TimeScale;
cmTime.Value = (seconds > 5) ? timeScale * 5 : timeScale * 1;
NSError error;
var imageRef = imageGenerator.CopyCGImageAtTime(cmTime, out actualTime, out error);
if (imageRef == null)
{
return(null);
}
var uiImage = UIImage.FromImage(imageRef);
var img = Xamarin.Forms.ImageSource.FromStream(() => ((uiImage.AsPNG().AsStream())));
return(img);
}
public extern static bool bool_objc_msgSendSuper_CMTime_CMTime_CMTime(IntPtr receiver, IntPtr selector, CoreMedia.CMTime arg1, CoreMedia.CMTime arg2, CoreMedia.CMTime arg3);
public extern static bool bool_objc_msgSendSuper_CMTime_float_float_CMTimeRange(IntPtr receiver, IntPtr selector, CoreMedia.CMTime arg1, float arg2, float arg3, CoreMedia.CMTimeRange arg4);
public extern static bool bool_objc_msgSendSuper_CMTime_CGAffineTransform_CGAffineTransform_CMTimeRange(IntPtr receiver, IntPtr selector, CoreMedia.CMTime arg1, CoreGraphics.CGAffineTransform arg2, CoreGraphics.CGAffineTransform arg3, CoreMedia.CMTimeRange arg4);