110 lines
3.5 KiB
C#
110 lines
3.5 KiB
C#
using System;
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using System.Collections.Generic;
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namespace MediaBrowser.MediaEncoding.Probing
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{
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/// <summary>
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/// Class containing helper methods for working with FFprobe output.
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/// </summary>
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public static class FFProbeHelpers
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{
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/// <summary>
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/// Normalizes the FF probe result.
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/// </summary>
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/// <param name="result">The result.</param>
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public static void NormalizeFFProbeResult(InternalMediaInfoResult result)
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{
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if (result == null)
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{
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throw new ArgumentNullException(nameof(result));
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}
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if (result.Format != null && result.Format.Tags != null)
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{
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result.Format.Tags = ConvertDictionaryToCaseInsensitive(result.Format.Tags);
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}
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if (result.Streams != null)
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{
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// Convert all dictionaries to case insensitive
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foreach (var stream in result.Streams)
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{
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if (stream.Tags != null)
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{
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stream.Tags = ConvertDictionaryToCaseInsensitive(stream.Tags);
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}
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}
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}
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}
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/// <summary>
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/// Gets a string from an FFProbeResult tags dictionary.
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/// </summary>
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/// <param name="tags">The tags.</param>
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/// <param name="key">The key.</param>
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/// <returns>System.String.</returns>
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public static string GetDictionaryValue(IReadOnlyDictionary<string, string> tags, string key)
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{
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if (tags == null)
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{
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return null;
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}
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tags.TryGetValue(key, out var val);
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return val;
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}
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/// <summary>
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/// Gets an int from an FFProbeResult tags dictionary.
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/// </summary>
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/// <param name="tags">The tags.</param>
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/// <param name="key">The key.</param>
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/// <returns>System.Nullable{System.Int32}.</returns>
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public static int? GetDictionaryNumericValue(Dictionary<string, string> tags, string key)
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{
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var val = GetDictionaryValue(tags, key);
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if (!string.IsNullOrEmpty(val))
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{
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if (int.TryParse(val, out var i))
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{
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return i;
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}
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}
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return null;
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}
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/// <summary>
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/// Gets a DateTime from an FFProbeResult tags dictionary.
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/// </summary>
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/// <param name="tags">The tags.</param>
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/// <param name="key">The key.</param>
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/// <returns>System.Nullable{DateTime}.</returns>
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public static DateTime? GetDictionaryDateTime(Dictionary<string, string> tags, string key)
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{
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var val = GetDictionaryValue(tags, key);
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if (!string.IsNullOrEmpty(val))
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{
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if (DateTime.TryParse(val, out var i))
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{
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return i.ToUniversalTime();
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}
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}
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return null;
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}
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/// <summary>
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/// Converts a dictionary to case insensitive.
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/// </summary>
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/// <param name="dict">The dict.</param>
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/// <returns>Dictionary{System.StringSystem.String}.</returns>
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private static Dictionary<string, string> ConvertDictionaryToCaseInsensitive(IReadOnlyDictionary<string, string> dict)
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{
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return new Dictionary<string, string>(dict, StringComparer.OrdinalIgnoreCase);
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}
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}
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}
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