https://github.com/flutter-webrtc/dart-sdp-transform

A simple parser/writer for the Session Description Protocol
https://github.com/flutter-webrtc/dart-sdp-transform

dart flutter json sdp

Last synced: 2 months ago
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A simple parser/writer for the Session Description Protocol

• Host: GitHub
• URL: https://github.com/flutter-webrtc/dart-sdp-transform
• Owner: flutter-webrtc
• License: mit
• Created: 2018-11-03T14:12:28.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2021-09-04T13:54:17.000Z (almost 4 years ago)
• Last Synced: 2025-04-12T02:32:11.722Z (2 months ago)
• Topics: dart, flutter, json, sdp
• Language: Dart
• Size: 50.8 KB
• Stars: 16
• Watchers: 3
• Forks: 7
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
# sdp-transform

[![pub package](https://img.shields.io/pub/v/sdp_transform.svg)](https://pub.dartlang.org/packages/sdp_transform) [![Gitter](https://badges.gitter.im/flutter-webrtc/Lobby.svg)](https://gitter.im/flutter-webrtc/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)

Dart version of the [sdp-transform](https://github.com/clux/sdp-transform) JavaScript library.

dart-sdp-transform is a simple parser and writer of SDP. Defines internal grammar based on RFC4566 - SDP, RFC5245 - ICE, and many more.

## Usage

```dart

import 'dart:io';

import 'dart:convert';

import 'package:sdp_transform/sdp_transform.dart';

main() {

  new File('./test/ssrc.sdp').readAsString().then((String contents) {

    print('original sdp => ' + contents);

    var session = parse(contents);

    print('convert to json => ' + json.encode(session));

    var params = parseParams(session['media'][1]['fmtp'][0]['config']);

    print('params => ' + params.toString());

    var payloads = parsePayloads(session['media'][1]["payloads"]);

    print('payloads => ' + payloads.toString());

    String imageAttributesStr = "[x=1280,y=720] [x=320,y=180]";

    var imageAttributes = parseImageAttributes(imageAttributesStr);

    print('imageAttributes => ' + imageAttributes.toString());

    // // a=simulcast:send 1,~4;2;3 recv c

    String simulcastAttributesStr = "1,~4;2;3";

    var simulcastAttributes = parseSimulcastStreamList(simulcastAttributesStr);

    print('simulcastAttributes => ' + simulcastAttributes.toString());

    var sdp = write(session, null);

    print('convert to sdp => ' + sdp);

  });

}

```