feat(server): accepted video containers (#11274)

* add accepted container config

* update api

* mp4 option makes no sense

* add to transcoding settings

* wording

* updated spec config

* formatting

mobile/openapi/lib/model/video_container.dart

@@ -0,0 +1,91 @@
+//
+// AUTO-GENERATED FILE, DO NOT MODIFY!
+//
+// @dart=2.18
+
+// ignore_for_file: unused_element, unused_import
+// ignore_for_file: always_put_required_named_parameters_first
+// ignore_for_file: constant_identifier_names
+// ignore_for_file: lines_longer_than_80_chars
+
+part of openapi.api;
+
+
+class VideoContainer {
+  /// Instantiate a new enum with the provided [value].
+  const VideoContainer._(this.value);
+
+  /// The underlying value of this enum member.
+  final String value;
+
+  @override
+  String toString() => value;
+
+  String toJson() => value;
+
+  static const mov = VideoContainer._(r'mov');
+  static const mp4 = VideoContainer._(r'mp4');
+  static const ogg = VideoContainer._(r'ogg');
+  static const webm = VideoContainer._(r'webm');
+
+  /// List of all possible values in this [enum][VideoContainer].
+  static const values = <VideoContainer>[
+    mov,
+    mp4,
+    ogg,
+    webm,
+  ];
+
+  static VideoContainer? fromJson(dynamic value) => VideoContainerTypeTransformer().decode(value);
+
+  static List<VideoContainer> listFromJson(dynamic json, {bool growable = false,}) {
+    final result = <VideoContainer>[];
+    if (json is List && json.isNotEmpty) {
+      for (final row in json) {
+        final value = VideoContainer.fromJson(row);
+        if (value != null) {
+          result.add(value);
+        }
+      }
+    }
+    return result.toList(growable: growable);
+  }
+}
+
+/// Transformation class that can [encode] an instance of [VideoContainer] to String,
+/// and [decode] dynamic data back to [VideoContainer].
+class VideoContainerTypeTransformer {
+  factory VideoContainerTypeTransformer() => _instance ??= const VideoContainerTypeTransformer._();
+
+  const VideoContainerTypeTransformer._();
+
+  String encode(VideoContainer data) => data.value;
+
+  /// Decodes a [dynamic value][data] to a VideoContainer.
+  ///
+  /// If [allowNull] is true and the [dynamic value][data] cannot be decoded successfully,
+  /// then null is returned. However, if [allowNull] is false and the [dynamic value][data]
+  /// cannot be decoded successfully, then an [UnimplementedError] is thrown.
+  ///
+  /// The [allowNull] is very handy when an API changes and a new enum value is added or removed,
+  /// and users are still using an old app with the old code.
+  VideoContainer? decode(dynamic data, {bool allowNull = true}) {
+    if (data != null) {
+      switch (data) {
+        case r'mov': return VideoContainer.mov;
+        case r'mp4': return VideoContainer.mp4;
+        case r'ogg': return VideoContainer.ogg;
+        case r'webm': return VideoContainer.webm;
+        default:
+          if (!allowNull) {
+            throw ArgumentError('Unknown enum value to decode: $data');
+          }
+      }
+    }
+    return null;
+  }
+
+  /// Singleton [VideoContainerTypeTransformer] instance.
+  static VideoContainerTypeTransformer? _instance;
+}
+