public async Task Play(IMediaFile mediaFile = null)
{
var sameMediaFile = mediaFile == null || mediaFile.Equals(_currentMediaFile);
if (Status == MediaPlayerStatus.Paused && sameMediaFile)
{
Status = MediaPlayerStatus.Playing;
//We are simply paused so just start again
Player.Play();
return;
}
if (mediaFile != null)
{
nsUrl = MediaFileUrlHelper.GetUrlFor(mediaFile);
_currentMediaFile = mediaFile;
}
try
{
InitializePlayer();
Status = MediaPlayerStatus.Buffering;
var playerItem = GetPlayerItem(nsUrl);
CurrentItem?.RemoveObserver(this, new NSString("status"));
Player.ReplaceCurrentItemWithPlayerItem(playerItem);
CurrentItem.AddObserver(this, new NSString("loadedTimeRanges"),
NSKeyValueObservingOptions.Initial | NSKeyValueObservingOptions.New,
LoadedTimeRangesObservationContext.Handle);
CurrentItem.SeekingWaitsForVideoCompositionRendering = true;
CurrentItem.AddObserver(this, (NSString)"status", NSKeyValueObservingOptions.New |
NSKeyValueObservingOptions.Initial,
StatusObservationContext.Handle);
NSNotificationCenter.DefaultCenter.AddObserver(AVPlayerItem.DidPlayToEndTimeNotification,
notification => MediaFinished?.Invoke(this, new MediaFinishedEventArgs(mediaFile)), CurrentItem);
Player.Play();
}
catch (Exception ex)
{
OnMediaFailed();
Status = MediaPlayerStatus.Stopped;
//unable to start playback log error
Console.WriteLine("Unable to start playback: " + ex);
}
await Task.CompletedTask;
}
public async Task <IMediaFile> ExtractMediaInfo(IMediaFile mediaFile)
{
try
{
if (mediaFile.ExtractMetadata)
{
var assetsToLoad = new List <string>
{
AVMetadata.CommonKeyArtist,
AVMetadata.CommonKeyTitle,
AVMetadata.CommonKeyArtwork
};
var url = MediaFileUrlHelper.GetUrlFor(mediaFile);
// Default title to filename
mediaFile.Metadata.Title = url.LastPathComponent;
var asset = AVAsset.FromUrl(url);
await asset.LoadValuesTaskAsync(assetsToLoad.ToArray());
foreach (var avMetadataItem in asset.CommonMetadata)
{
if (avMetadataItem.CommonKey == AVMetadata.CommonKeyArtist)
{
mediaFile.Metadata.Artist = ((NSString)avMetadataItem.Value).ToString();
}
else if (avMetadataItem.CommonKey == AVMetadata.CommonKeyTitle)
{
mediaFile.Metadata.Title = ((NSString)avMetadataItem.Value).ToString();
}
else if (avMetadataItem.CommonKey == AVMetadata.CommonKeyArtwork)
{
#if __IOS__ || __TVOS__
var image = UIImage.LoadFromData(avMetadataItem.DataValue);
mediaFile.Metadata.AlbumArt = image;
#endif
}
}
mediaFile.MetadataExtracted = true;
}
return(mediaFile);
}
catch (Exception)
{
return(mediaFile);
}
}
