Fix OMDb converter

MediaBrowser.Common/Json/Converters/JsonOmdbNotAvailableStructConverter.cs

@@ -1,4 +1,5 @@
 using System;
+using System.ComponentModel;
 using System.Text.Json;
 using System.Text.Json.Serialization;
 
@@ -21,6 +22,9 @@ namespace MediaBrowser.Common.Json.Converters
                 {
                     return null;
                 }
+
+                var converter = TypeDescriptor.GetConverter(typeToConvert);
+                return (T?)converter.ConvertFromString(str);
             }
 
             return JsonSerializer.Deserialize<T>(ref reader, options);

MediaBrowser.Providers/Plugins/Omdb/OmdbProvider.cs

@@ -214,39 +214,15 @@ namespace MediaBrowser.Providers.Plugins.Omdb
         internal async Task<RootObject> GetRootObject(string imdbId, CancellationToken cancellationToken)
         {
             var path = await EnsureItemInfo(imdbId, cancellationToken).ConfigureAwait(false);
-
-            string resultString;
-
-            using (var stream = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read))
-            {
-                using (var reader = new StreamReader(stream, new UTF8Encoding(false)))
-                {
-                    resultString = reader.ReadToEnd();
-                    resultString = resultString.Replace("\"N/A\"", "\"\"");
-                }
-            }
-
-            var result = JsonSerializer.Deserialize<RootObject>(resultString, _jsonOptions);
-            return result;
+            await using var stream = File.OpenRead(path);
+            return await JsonSerializer.DeserializeAsync<RootObject>(stream, _jsonOptions, cancellationToken);
         }
 
         internal async Task<SeasonRootObject> GetSeasonRootObject(string imdbId, int seasonId, CancellationToken cancellationToken)
         {
             var path = await EnsureSeasonInfo(imdbId, seasonId, cancellationToken).ConfigureAwait(false);
-
-            string resultString;
-
-            using (var stream = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read))
-            {
-                using (var reader = new StreamReader(stream, new UTF8Encoding(false)))
-                {
-                    resultString = reader.ReadToEnd();
-                    resultString = resultString.Replace("\"N/A\"", "\"\"");
-                }
-            }
-
-            var result = JsonSerializer.Deserialize<SeasonRootObject>(resultString, _jsonOptions);
-            return result;
+            await using var stream = File.OpenRead(path);
+            return await JsonSerializer.DeserializeAsync<SeasonRootObject>(stream, _jsonOptions, cancellationToken);
         }
 
         internal static bool IsValidSeries(Dictionary<string, string> seriesProviderIds)