npaw_forge_media_kit 9.7.3

NPAW Forge adapter for the media_kit Flutter player: reports typed playback lifecycle plus mpv-level QoS (bitrate, fps, dropped frames) to the Forge core.

example/lib/main.dart

// Copyright (C) NPAW - All Rights Reserved
//
// This source code is protected under international copyright law. All rights
// reserved and protected by the copyright holders. This file is confidential and
// only available to authorized individuals with the permission of the copyright
// holders. If you encounter this file and do not have permission, please contact
// the copyright holders and delete this file.
//
//
// @author: Victor Soto <[e-mail]>
// @description: NPAW Forge media_kit example app playing a sample stream with automatic analytics.

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:media_kit/media_kit.dart';
import 'package:media_kit_video/media_kit_video.dart';
import 'package:npaw_forge/npaw_forge.dart';
import 'package:npaw_forge_media_kit/npaw_forge_media_kit.dart';

/// Demo account; override with --dart-define=FORGE_ACCOUNT_CODE=yourAccount.
const String accountCode = String.fromEnvironment(
  'FORGE_ACCOUNT_CODE',
  defaultValue: 'npawdemodev',
);

/// Ingest endpoint; point smoke runs at stage, never production.
const String lmaEndpoint = String.fromEnvironment('FORGE_LMA_ENDPOINT');

/// Opt-in diagnostics printer for smoke evidence
/// (--dart-define=FORGE_DEBUG_DIAGNOSTICS=true).
const bool debugDiagnostics =
    bool.fromEnvironment('FORGE_DEBUG_DIAGNOSTICS', defaultValue: false);

const String sampleStream = String.fromEnvironment(
  'FORGE_SAMPLE_STREAM',
  defaultValue: 'https://test-streams.mux.dev/x36xhzz/x36xhzz.m3u8',
);

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();
  MediaKit.ensureInitialized();
  final forge = await NpawForge.start(
    ForgeConfig(
      accountCode: accountCode,
      appName: 'npaw-forge-media-kit-example',
      lmaEndpoint: lmaEndpoint.isEmpty ? null : lmaEndpoint,
      logLevel: 'info',
    ),
  );
  if (debugDiagnostics) {
    forge.events.listen((event) => debugPrint('forge event: ${event.raw}'));
  }
  WidgetsBinding.instance.addObserver(ForgeLifecycleObserver(forge));
  runApp(ExampleApp(forge: forge));
}

class ExampleApp extends StatefulWidget {
  const ExampleApp({required this.forge, super.key});

  final NpawForge forge;

  @override
  State<ExampleApp> createState() => _ExampleAppState();
}

class _ExampleAppState extends State<ExampleApp> {
  late final Player player = Player();
  late final VideoController controller = VideoController(player);
  ForgeMediaKitAttachment? attachment;
  Timer? _qosTimer;

  @override
  void initState() {
    super.initState();
    _start();
  }

  Future<void> _start() async {
    attachment = await attachMediaKitPlayer(
      widget.forge,
      player,
      metadata: const ContentMetadata(title: 'media_kit sample stream'),
    );
    await player.open(Media(sampleStream));
    if (debugDiagnostics) {
      _qosTimer = Timer.periodic(const Duration(seconds: 5), (_) {
        final json = attachment?.adapter.metadata().toJson();
        debugPrint('forge qos sample: bitrate=${json?['bitrate']} '
            'droppedFrames=${json?['droppedFrames']} '
            'rendition=${json?['rendition']} qos=${json?['qos']}');
      });
    }
  }

  @override
  void dispose() {
    _qosTimer?.cancel();
    attachment?.dispose();
    player.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Forge media_kit example',
      home: Scaffold(
        appBar: AppBar(title: const Text('Forge media_kit example')),
        body: Center(
          child: AspectRatio(
            aspectRatio: 16 / 9,
            child: Video(controller: controller),
          ),
        ),
      ),
    );
  }
}