void loadAsset(AVAsset asset, string[] assetKeysToLoad, DispatchGroup dispatchGroup)
{
dispatchGroup.Enter();
asset.LoadValuesAsynchronously(assetKeysToLoad, () => {
foreach (var key in assetKeysToLoad)
{
NSError error;
if (asset.StatusOfValue(key, out error) == AVKeyValueStatus.Failed)
{
Console.Error.WriteLine("Key value loading failed for key" + key + " with error: " + error.ToString());
dispatchGroup.Leave();
}
}
if (!asset.Composable)
{
Console.Error.WriteLine("Asset is not composable");
dispatchGroup.Leave();
}
Clips.Add(asset);
ClipTimeRanges.Add(NSValue.FromCMTimeRange(new CMTimeRange()
{
Start = CMTime.FromSeconds(0, 1),
Duration = CMTime.FromSeconds(5, 1)
}));
dispatchGroup.Leave();
});
}
private void LoadAsset(AVAsset asset, string[] assetKeysToLoad, DispatchGroup dispatchGroup)
{
dispatchGroup.Enter();
asset.LoadValuesAsynchronously(assetKeysToLoad, () =>
{
// First test whether the values of each of the keys we need have been successfully loaded.
foreach (var key in assetKeysToLoad)
{
if (asset.StatusOfValue(key, out NSError error) == AVKeyValueStatus.Failed)
{
Console.WriteLine($"Key value loading failed for key:{key} with error: {error?.LocalizedDescription ?? ""}");
goto bail;
}
}
if (!asset.Composable)
{
Console.WriteLine("Asset is not composable");
goto bail;
}
this.clips.Add(asset);
// This code assumes that both assets are atleast 5 seconds long.
var value = NSValue.FromCMTimeRange(new CMTimeRange {
Start = CMTime.FromSeconds(0, 1), Duration = CMTime.FromSeconds(5, 1)
});
this.clipTimeRanges.Add(value);
bail:
dispatchGroup.Leave();
});
}
protected override void OnElementChanged(ElementChangedEventArgs <myVideoPlayer> e)
{
base.OnElementChanged(e);
if (e.NewElement != null)
{
if (Control == null)
{
// Create AVPlayerViewController
_playerViewController = new AVPlayerViewController();
// Set Player property to AVPlayer
player = new AVPlayer();
_playerViewController.Player = player;
// Use the View from the controller as the native control
SetNativeControl(_playerViewController.View);
asset = AVAsset.FromUrl(new NSUrl("https://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4"));
if (asset != null)
{
string[] keys = { "playable", "hasProtectedContent" };
asset.LoadValuesAsynchronously(keys, () =>
{
DispatchQueue.MainQueue.DispatchAsync(() =>
{
// Device.BeginInvokeOnMainThread(() => {
if (asset == null)
{
return;
}
Console.WriteLine(asset.StatusOfValue("playable", out err));
playerItem = new AVPlayerItem(asset);
player.ReplaceCurrentItemWithPlayerItem(playerItem);
if (playerItem != null)
{
player.Play();
}
});
});
}
}
}
}
void loadAsset(AVAsset asset, string[] assetKeysToLoad, DispatchGroup dispatchGroup)
{
dispatchGroup.Enter ();
asset.LoadValuesAsynchronously (assetKeysToLoad, () => {
foreach(var key in assetKeysToLoad)
{
NSError error;
if(asset.StatusOfValue(key, out error) == AVKeyValueStatus.Failed)
{
Console.Error.WriteLine("Key value loading failed for key" + key + " with error: "+ error.ToString());
dispatchGroup.Leave();
}
}
if(!asset.Composable)
{
Console.Error.WriteLine("Asset is not composable");
dispatchGroup.Leave();
}
Clips.Add(asset);
ClipTimeRanges.Add(NSValue.FromCMTimeRange(new CMTimeRange(){
Start = CMTime.FromSeconds(0, 1),
Duration = CMTime.FromSeconds(5,1)
}));
dispatchGroup.Leave();
});
}
public async Task Play(Func <Task> ifNotAvailable)
{
if (Status == PlayerStatus.PAUSED)
{
Status = PlayerStatus.PLAYING;
//We are simply paused so just start again
player.Play();
return;
}
try
{
// Start off with the status LOADING.
Status = PlayerStatus.LOADING;
Cover = null;
AVAsset nsAsset = AVUrlAsset.FromUrl(nsUrl);
AVPlayerItem streamingItem = AVPlayerItem.FromAsset(nsAsset);
nsAsset.LoadValuesAsynchronously(new string[] { "commonMetadata" }, delegate
{
foreach (AVMetadataItem item in streamingItem.Asset.CommonMetadata)
{
if (item.KeySpace == AVMetadata.KeySpaceID3 && item.CommonKey == AVMetadata.CommonKeyArtwork)
{
if (UIDevice.CurrentDevice.CheckSystemVersion(8, 0))
{
Cover = UIImage.LoadFromData(item.Value as NSData);
}
else
{
NSObject data;
(item.Value as NSMutableDictionary).TryGetValue(new NSString("data"), out data);
Cover = UIImage.LoadFromData(data as NSData);
}
}
}
if (Cover == null)
{
Cover = UIImage.FromFile("placeholder_cover.png");
}
});
if (player.CurrentItem != null)
{
// Remove the observer before destructing the current item
player.CurrentItem.RemoveObserver(this, new NSString("status"));
}
player.ReplaceCurrentItemWithPlayerItem(streamingItem);
streamingItem.AddObserver(this, new NSString("status"), NSKeyValueObservingOptions.New, player.Handle);
streamingItem.AddObserver(this, new NSString("loadedTimeRanges"), NSKeyValueObservingOptions.Initial | NSKeyValueObservingOptions.New, player.Handle);
player.CurrentItem.SeekingWaitsForVideoCompositionRendering = true;
player.CurrentItem.AddObserver(this, (NSString)"status", NSKeyValueObservingOptions.New |
NSKeyValueObservingOptions.Initial, StatusObservationContext.Handle);
NSNotificationCenter.DefaultCenter.AddObserver(AVPlayerItem.DidPlayToEndTimeNotification, async(notification) =>
{
await PlayNext();
}, player.CurrentItem);
player.Play();
}
catch (Exception ex)
{
Status = PlayerStatus.STOPPED;
//unable to start playback log error
Console.WriteLine("Unable to start playback: " + ex);
}
}