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

124 lines
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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/>.
*/
/// Stream information class.
class StreamInformation {
static const keyIndex = "index";
static const keyType = "codec_type";
static const keyCodec = "codec_name";
static const keyCodecLong = "codec_long_name";
static const keyFormat = "pix_fmt";
static const keyWidth = "width";
static const keyHeight = "height";
static const keyBitRate = "bit_rate";
static const keySampleRate = "sample_rate";
static const keySampleFormat = "sample_fmt";
static const keyChannelLayout = "channel_layout";
static const keySampleAspectRatio = "sample_aspect_ratio";
static const keyDisplayAspectRatio = "display_aspect_ratio";
static const keyAverageFrameRate = "avg_frame_rate";
static const keyRealFrameRate = "r_frame_rate";
static const keyTimeBase = "time_base";
static const keyCodecTimeBase = "codec_time_base";
static const keyTags = "tags";
Map<dynamic, dynamic>? _allProperties;
/// Creates a new [StreamInformation] instance
StreamInformation(this._allProperties);
/// Returns stream index.
int? getIndex() => this.getNumberProperty(keyIndex)?.toInt();
/// Returns stream type.
String? getType() => this.getStringProperty(StreamInformation.keyType);
/// Returns stream codec.
String? getCodec() => this.getStringProperty(StreamInformation.keyCodec);
/// Returns stream codec in long format.
String? getCodecLong() =>
this.getStringProperty(StreamInformation.keyCodecLong);
/// Returns stream format.
String? getFormat() => this.getStringProperty(StreamInformation.keyFormat);
/// Returns width.
int? getWidth() =>
this.getNumberProperty(StreamInformation.keyWidth)?.toInt();
/// Returns height.
int? getHeight() =>
this.getNumberProperty(StreamInformation.keyHeight)?.toInt();
/// Returns bitrate.
String? getBitrate() => this.getStringProperty(StreamInformation.keyBitRate);
/// Returns sample rate.
String? getSampleRate() =>
this.getStringProperty(StreamInformation.keySampleRate);
/// Returns sample format.
String? getSampleFormat() =>
this.getStringProperty(StreamInformation.keySampleFormat);
/// Returns channel layout.
String? getChannelLayout() =>
this.getStringProperty(StreamInformation.keyChannelLayout);
/// Returns sample aspect ratio.
String? getSampleAspectRatio() =>
this.getStringProperty(StreamInformation.keySampleAspectRatio);
/// Returns display aspect ratio.
String? getDisplayAspectRatio() =>
this.getStringProperty(StreamInformation.keyDisplayAspectRatio);
/// Returns average frame rate.
String? getAverageFrameRate() =>
this.getStringProperty(StreamInformation.keyAverageFrameRate);
/// Returns real frame rate.
String? getRealFrameRate() =>
this.getStringProperty(StreamInformation.keyRealFrameRate);
/// Returns time base.
String? getTimeBase() =>
this.getStringProperty(StreamInformation.keyTimeBase);
/// Returns codec time base.
String? getCodecTimeBase() =>
this.getStringProperty(StreamInformation.keyCodecTimeBase);
/// Returns all tags.
Map<dynamic, dynamic>? getTags() =>
this.getProperty(StreamInformation.keyTags);
/// Returns the stream property associated with the key.
String? getStringProperty(String key) => this._allProperties?[key];
/// Returns the stream property associated with the key.
num? getNumberProperty(String key) => this._allProperties?[key];
/// Returns the stream property associated with the key.
dynamic getProperty(String key) => this._allProperties?[key];
/// Returns all properties found.
Map<dynamic, dynamic>? getAllProperties() => this._allProperties;
}