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Add download and subtitle services, enhance UI with continue watching and quality selector widgets
- Implemented DownloadService for managing download tasks, including start, pause, resume, and cancel functionalities. - Created SubtitleService for handling subtitle tracks, parsing SRT and WebVTT formats, and downloading subtitles. - Added ContinueWatchingWidget to display user's watch history with progress indicators. - Developed QualitySelectorWidget for selecting video quality during playback, including auto quality adjustment. - Introduced TrendingWidget and RecentlyAddedWidget to showcase trending and recently added content.
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/// Application optimization configuration
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///
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/// This file contains performance tuning settings for XtremFlow
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class OptimizationConfig {
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// ============================================
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// STREAMING OPTIMIZATION
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// ============================================
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/// Enable adaptive bitrate streaming
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static const bool enableAdaptiveBitrate = true;
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/// Default quality profile for new streams
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static const String defaultQualityResolution = '720x480'; // 480p HD
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/// Maximum buffer size in seconds
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static const int maxBufferSeconds = 30;
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/// Minimum buffer size in seconds before rebuffering
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static const int minBufferSeconds = 2;
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/// Target buffer size in seconds
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static const int targetBufferSeconds = 8;
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/// Enable HLS v3 compression
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static const bool enableHlsCompression = true;
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/// FFmpeg preset for live transcoding
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static const String ffmpegLivePreset = 'medium'; // ultrafast, fast, medium, slow
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/// FFmpeg preset for VOD transcoding
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static const String ffmpegVodPreset = 'medium';
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/// Enable NVIDIA GPU acceleration if available
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static const bool enableNvidiaGpu = true;
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// ============================================
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// CACHE OPTIMIZATION
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// ============================================
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/// Enable aggressive image caching
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static const bool enableImageCache = true;
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/// Maximum image cache size in MB
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static const int maxImageCacheMb = 100;
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/// Maximum memory cache size in MB
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static const int maxMemoryCacheMb = 200;
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/// Cache expiration time in hours
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static const int cacheExpirationHours = 24;
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/// Enable network cache interceptor
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static const bool enableNetworkCache = true;
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/// Network cache retention time in days
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static const int networkCacheRetentionDays = 3;
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// ============================================
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// UI OPTIMIZATION
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// ============================================
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/// Number of items to load per page
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static const int itemsPerPage = 50;
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/// Number of items per page for Live TV grid view
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static const int liveItemsPerPage = 100;
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/// Enable lazy loading for content lists
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static const bool enableLazyLoading = true;
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/// Enable image fade animation on load
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static const bool enableImageFadeAnimation = true;
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/// Image fade animation duration in milliseconds
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static const int imageFadeAnimationMs = 300;
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/// Enable smooth scrolling
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static const bool enableSmoothScroll = true;
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/// TextureView pool size for video rendering (Android)
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static const int videoTexturePoolSize = 4;
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// ============================================
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// NETWORK OPTIMIZATION
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// ============================================
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/// Connection timeout in seconds
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static const int connectionTimeoutSeconds = 30;
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/// Receive timeout in seconds
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static const int receiveTimeoutSeconds = 60;
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/// Max concurrent downloads
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static const int maxConcurrentDownloads = 3;
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/// Enable network optimization (bandwidth detection, etc)
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static const bool enableNetworkOptimization = true;
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/// Enable request retry on failure
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static const bool enableAutoRetry = true;
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/// Max retry attempts
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static const int maxRetryAttempts = 3;
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/// Enable gzip compression for API requests
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static const bool enableGzipCompression = true;
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// ============================================
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// MEMORY OPTIMIZATION
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// ============================================
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/// Enable memory profiling on debug builds
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static const bool enableMemoryProfiling = false;
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/// Collect memory stats every N seconds
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static const int memoryProfilingIntervalSeconds = 10;
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/// Enable aggressive memory cleanup on app background
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static const bool enableMemoryCleanupOnBackground = true;
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/// Max number of cached image entries
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static const int maxCachedImages = 500;
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// ============================================
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// PERFORMANCE MONITORING
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// ============================================
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/// Enable performance monitoring
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static const bool enablePerformanceMonitoring = true;
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/// Monitor frame rate drops
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static const bool monitorFrameRate = true;
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/// Frame rate warning threshold (FPS)
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static const int frameRateWarningThreshold = 30;
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/// Enable network metrics collection
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static const bool collectNetworkMetrics = true;
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/// Enable streaming quality metrics
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static const bool collectStreamingMetrics = true;
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// ============================================
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// FEATURE FLAGS
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// ============================================
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/// Enable EPG (Electronic Program Guide)
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static const bool enableEpg = true;
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/// Enable offline downloads
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static const bool enableOfflineDownloads = true;
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/// Enable continue watching feature
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static const bool enableContinueWatching = true;
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/// Enable trending content
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static const bool enableTrending = true;
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/// Enable adaptive streaming quality selector
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static const bool enableQualitySelector = true;
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/// Enable subtitle support
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static const bool enableSubtitles = true;
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/// Enable watch history tracking
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static const bool enableWatchHistory = true;
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/// Enable user favorites
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static const bool enableFavorites = true;
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// ============================================
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// HELPER METHODS
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// ============================================
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/// Get optimized image cache settings
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static Map<String, dynamic> getImageCacheSettings() => {
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'maxSize': maxImageCacheMb * 1024 * 1024,
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'maxItems': maxCachedImages,
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'enableAnimation': enableImageFadeAnimation,
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'fadeAnimationMs': imageFadeAnimationMs,
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};
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/// Get streaming configuration
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static Map<String, dynamic> getStreamingConfig() => {
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'enableAdaptiveBitrate': enableAdaptiveBitrate,
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'defaultQuality': defaultQualityResolution,
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'maxBuffer': maxBufferSeconds,
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'minBuffer': minBufferSeconds,
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'targetBuffer': targetBufferSeconds,
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'enableHlsCompression': enableHlsCompression,
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'ffmpegPreset': ffmpegLivePreset,
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'enableGpu': enableNvidiaGpu,
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};
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/// Get network configuration
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static Map<String, dynamic> getNetworkConfig() => {
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'connectTimeout': connectionTimeoutSeconds,
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'receiveTimeout': receiveTimeoutSeconds,
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'enableAutoRetry': enableAutoRetry,
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'maxRetries': maxRetryAttempts,
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'enableGzip': enableGzipCompression,
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'enableCache': enableNetworkCache,
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'cacheRetentionDays': networkCacheRetentionDays,
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};
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/// Get UI performance settings
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static Map<String, dynamic> getUiPerformanceSettings() => {
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'itemsPerPage': itemsPerPage,
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'liveItemsPerPage': liveItemsPerPage,
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'enableLazyLoading': enableLazyLoading,
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'enableSmoothScroll': enableSmoothScroll,
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'maxTexturePoolSize': videoTexturePoolSize,
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};
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/// Get memory optimization settings
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static Map<String, dynamic> getMemoryOptimizationSettings() => {
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'enableProfiling': enableMemoryProfiling,
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'profilingInterval': memoryProfilingIntervalSeconds,
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'aggressiveCleanup': enableMemoryCleanupOnBackground,
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'maxImageCacheMb': maxImageCacheMb,
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'maxMemoryCacheMb': maxMemoryCacheMb,
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};
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/// Get all enabled features
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static List<String> getEnabledFeatures() => [
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if (enableEpg) 'EPG',
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if (enableOfflineDownloads) 'OfflineDownloads',
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if (enableContinueWatching) 'ContinueWatching',
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if (enableTrending) 'Trending',
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if (enableQualitySelector) 'QualitySelector',
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if (enableSubtitles) 'Subtitles',
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if (enableWatchHistory) 'WatchHistory',
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if (enableFavorites) 'Favorites',
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];
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/// Print configuration summary
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static void printSummary() {
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print('''
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╔════════════════════════════════════════════════════════════╗
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║ XtremFlow Optimization Configuration ║
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╠════════════════════════════════════════════════════════════╣
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║ STREAMING ║
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║ • Adaptive Bitrate: $enableAdaptiveBitrate ║
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║ • Default Quality: $defaultQualityResolution ║
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║ • GPU Acceleration: $enableNvidiaGpu ║
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║ ║
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║ CACHE ║
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║ • Image Cache: ${maxImageCacheMb}MB ║
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║ • Memory Cache: ${maxMemoryCacheMb}MB ║
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║ • Network Cache: $enableNetworkCache ║
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║ ║
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║ NETWORK ║
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║ • Connection Timeout: ${connectionTimeoutSeconds}s ║
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║ • Auto Retry: $enableAutoRetry ║
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║ • Max Retries: $maxRetryAttempts ║
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║ ║
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║ FEATURES ENABLED: ${getEnabledFeatures().join(', ')}║
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║ ║
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╚════════════════════════════════════════════════════════════╝
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''');
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}
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}
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/// Runtime optimization flags
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class RuntimeOptimizations {
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static bool hasHighPerformanceDevice = false;
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static bool isLowBatteryMode = false;
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static bool isLowMemoryMode = false;
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static int availableMemoryMb = 0;
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static int availableStorageMb = 0;
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/// Adjust settings based on device capabilities
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static void calibrateForDevice({
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required int totalMemoryMb,
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required int freeMemoryMb,
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required int storageFreeMb,
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}) {
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availableMemoryMb = freeMemoryMb;
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availableStorageMb = storageFreeMb;
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// Detect low memory condition
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isLowMemoryMode = freeMemoryMb < 500;
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// Detect low storage
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if (storageFreeMb < 1000) {
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print(
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'[WARNING] Low storage available: ${storageFreeMb}MB. Disabling offline downloads.');
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}
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// High performance device detection
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hasHighPerformanceDevice = totalMemoryMb > 4000 && storageFreeMb > 5000;
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print('[Device Calibration] Memory: ${freeMemoryMb}MB, Storage: ${storageFreeMb}MB');
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}
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/// Get dynamic cache size based on available memory
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static int getDynamicCacheSize() {
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if (isLowMemoryMode) {
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return 50; // 50MB on low memory devices
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}
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if (hasHighPerformanceDevice) {
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return 200; // 200MB on high performance devices
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}
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return OptimizationConfig.maxMemoryCacheMb;
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}
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/// Get dynamic image cache size
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static int getDynamicImageCacheSize() {
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if (isLowMemoryMode) {
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return 30; // 30MB
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}
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if (hasHighPerformanceDevice) {
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return 150; // 150MB
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}
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return OptimizationConfig.maxImageCacheMb;
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}
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}
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