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ffmpeg-kit/flutter/flutter/lib/media_information.dart

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/*
* Copyright (c) 2019-2022 Taner Sener
*
* This file is part of FFmpegKit.
*
* FFmpegKit is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* FFmpegKit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with FFmpegKit. If not, see <http://www.gnu.org/licenses/>.
*/
import 'chapter.dart';
import 'stream_information.dart';
/// Media information class.
class MediaInformation {
static const keyFormatProperties = "format";
static const keyFilename = "filename";
static const keyFormat = "format_name";
static const keyFormatLong = "format_long_name";
static const keyStartTime = "start_time";
static const keyDuration = "duration";
static const keySize = "size";
static const keyBitRate = "bit_rate";
static const keyTags = "tags";
Map<dynamic, dynamic>? _allProperties;
/// Creates a new [MediaInformation] instance
MediaInformation(this._allProperties);
/// Returns file name.
String? getFilename() =>
this.getStringFormatProperty(MediaInformation.keyFilename);
/// Returns format.
String? getFormat() =>
this.getStringFormatProperty(MediaInformation.keyFormat);
/// Returns long format.
String? getLongFormat() =>
this.getStringFormatProperty(MediaInformation.keyFormatLong);
/// Returns duration.
String? getDuration() =>
this.getStringFormatProperty(MediaInformation.keyDuration);
/// Returns start time.
String? getStartTime() =>
this.getStringFormatProperty(MediaInformation.keyStartTime);
/// Returns size.
String? getSize() => this.getStringFormatProperty(MediaInformation.keySize);
/// Returns bitrate.
String? getBitrate() =>
this.getStringFormatProperty(MediaInformation.keyBitRate);
/// Returns all tags.
Map<dynamic, dynamic>? getTags() =>
this.getFormatProperty(StreamInformation.keyTags);
/// Returns the property associated with the key.
String? getStringProperty(String key) => this.getAllProperties()?[key];
/// Returns the property associated with the key.
num? getNumberProperty(String key) => this.getAllProperties()?[key];
/// Returns the property associated with the key.
dynamic getProperty(String key) => this.getAllProperties()?[key];
/// Returns the format property associated with the key.
String? getStringFormatProperty(String key) =>
this.getFormatProperties()?[key];
/// Returns the format property associated with the key.
num? getNumberFormatProperty(String key) => this.getFormatProperties()?[key];
/// Returns the format property associated with the key.
dynamic getFormatProperty(String key) => this.getFormatProperties()?[key];
/// Returns all streams found as a list.
List<StreamInformation> getStreams() {
final List<StreamInformation> list =
List<StreamInformation>.empty(growable: true);
dynamic createStreamInformation(Map<dynamic, dynamic> streamProperties) =>
list.add(new StreamInformation(streamProperties));
this._allProperties?["streams"]?.forEach((Object? stream) {
createStreamInformation(stream as Map<dynamic, dynamic>);
});
return list;
}
/// Returns all chapters found as a list.
List<Chapter> getChapters() {
final List<Chapter> list = List<Chapter>.empty(growable: true);
dynamic createChapter(Map<dynamic, dynamic> chapterProperties) =>
list.add(new Chapter(chapterProperties));
this._allProperties?["chapters"]?.forEach((Object? chapter) {
createChapter(chapter as Map<dynamic, dynamic>);
});
return list;
}
/// Returns all format properties found.
Map<dynamic, dynamic>? getFormatProperties() =>
this._allProperties?[keyFormatProperties];
/// Returns all properties found, including stream properties.
Map<dynamic, dynamic>? getAllProperties() => this._allProperties;
}