2 * Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the License);
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an AS IS BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 using System.Diagnostics;
19 using System.Runtime.InteropServices;
20 using Native = Interop.MetadataExtractor;
23 namespace Tizen.Multimedia
25 internal static class MetadataExtractorExtensions
27 internal static string GetMetadata(this MetadataExtractor extractor, MetadataExtractorAttr attr)
29 Debug.Assert(extractor != null);
31 IntPtr valuePtr = IntPtr.Zero;
35 var ret = Native.GetMetadata(extractor.Handle, attr, out valuePtr);
36 MetadataExtractorRetValidator.ThrowIfError(ret, "Failed to get value for " + attr);
37 return Marshal.PtrToStringAnsi(valuePtr);