/// <summary> /// Initializes a new instance of the <see cref="HeifContext"/> class, with the specified file to read from. /// </summary> /// <param name="path">The file to read from.</param> /// <exception cref="ArgumentNullException"><paramref name="path"/> is null.</exception> /// <exception cref="ArgumentException"> /// <paramref name="path"/> is empty, contains only whitespace or contains invalid characters. /// </exception> /// <exception cref="FileNotFoundException">The file specified by <paramref name="path"/> does not exist.</exception> /// <exception cref="HeifException"> /// Unable to create the native HeifContext. /// /// -or- /// /// The LibHeif version is not supported. /// /// -or- /// /// A LibHeif error occurred. /// </exception> /// <exception cref="IOException">An I/O error occurred.</exception> /// <exception cref="System.Security.SecurityException">The caller does not have the required permission.</exception> /// <exception cref="UnauthorizedAccessException"> /// The access requested is not permitted by the operating system for the specified path. /// </exception> public HeifContext(string path) { Validate.IsNotNull(path, nameof(path)); LibHeifVersion.ThrowIfNotSupported(); this.context = CreateNativeContext(); try { this.readerStreamIO = HeifStreamFactory.CreateFromFile(path, FileMode.Open, FileAccess.Read, FileShare.Read); InitializeContextFromReader(); } catch { this.context.Dispose(); this.readerStreamIO?.Dispose(); throw; } }
/// <summary> /// Initializes a new instance of the <see cref="HeifContext"/> class, with the specified byte array to read from. /// </summary> /// <param name="bytes">A byte array that contains the HEIF image.</param> /// <exception cref="ArgumentNullException"><paramref name="bytes"/> is null.</exception> /// <exception cref="ArgumentException"><paramref name="bytes"/> is an empty array.</exception> /// <exception cref="HeifException"> /// Unable to create the native HeifContext. /// /// -or- /// /// The LibHeif version is not supported. /// /// -or- /// /// A LibHeif error occurred. /// </exception> public HeifContext(byte[] bytes) { Validate.IsNotNullOrEmptyArray(bytes, nameof(bytes)); LibHeifVersion.ThrowIfNotSupported(); this.context = CreateNativeContext(); try { this.readerStreamIO = HeifStreamFactory.CreateFromMemory(bytes); InitializeContextFromReader(); } catch { this.context.Dispose(); this.readerStreamIO?.Dispose(); throw; } }