/// <summary> /// Create an IFrameSource from a source object. Currently supports Windows.Storage.StorageFile /// and Windows.Media.Capture.MediaCapture source objects. /// </summary> /// <param name="source"></param> /// <returns></returns> public static async Task <IFrameSource> CreateFrameSourceAsync(object source, EventHandler <string> failureHandler) { try { if (source is Windows.Storage.StorageFile) { var sourceFile = source as Windows.Storage.StorageFile; if (sourceFile.ContentType.StartsWith("image")) { return(await ImageFileFrameSource.CreateFromStorageFileAsyncTask(sourceFile)); } else if (sourceFile.ContentType.StartsWith("video")) { return(await MediaPlayerFrameSource.CreateFromStorageFileAsyncTask(sourceFile, failureHandler)); } else { throw new ArgumentException("Invalid file type received: " + sourceFile.ContentType); } } else if (source is Windows.Devices.Enumeration.DeviceInformation) { return(await FrameReaderFrameSource.CreateFromVideoDeviceInformationAsync(source as Windows.Devices.Enumeration.DeviceInformation, failureHandler)); } else { throw new ArgumentException(); } } catch (Exception ex) { failureHandler(null, ex.Message); } return(null); }
/// <summary> /// Static factory /// </summary> /// <param name="storageFile"></param> /// <returns></returns> public static async Task <ImageFileFrameSource> CreateFromStorageFileAsyncTask( StorageFile storageFile) { var result = new ImageFileFrameSource(); await result.GetFrameFromFileAsync(storageFile); return(result); }
/// <summary> /// Static factory /// </summary> /// <param name="storageFile"></param> /// <param name="imageDescriptor"></param> /// <returns></returns> public static async Task <ImageFileFrameSource> CreateFromStorageFileAsyncTask( StorageFile storageFile, ISkillFeatureImageDescriptor imageDescriptor) { var result = new ImageFileFrameSource() { m_desiredImageDescriptor = imageDescriptor }; await result.GetFrameFromFileAsync(storageFile); return(result); }