Component-based architecture with lifecycle management
Enhanced error handling and recovery mechanisms
Comprehensive state management and tracking
Event-driven architecture with monitoring
Queue Management:
Multiple processing strategies for different scenarios
Advanced state management with recovery
Comprehensive metrics and health monitoring
Sophisticated cleanup system with multiple strategies
Processing Pipeline:
Enhanced message handling with validation
Improved URL extraction and processing
Better queue management and monitoring
Advanced cleanup mechanisms
Overall Benefits:
Better code organization and maintainability
Improved error handling and recovery
Enhanced monitoring and reporting
More robust and reliable system
Added proper cancellation and requeuing of downloads in VideoProcessor
Added cancellable logger and process cleanup in VideoDownloader
Added shutdown flag and force_stop capability in EnhancedQueueManager
Added process tracking and kill_all_processes method in FFmpegManager
The changes ensure that:
Active downloads are paused and requeued when unload is called
If cleanup takes too long, force cleanup kicks in
All resources are properly cleaned up, even in case of timeout
Downloads can be safely cancelled and resumed later
No processes are left hanging during unload
Added URL pre-filtering to avoid unnecessary yt-dlp checks
Added common video platform patterns for quick filtering
Reduced error logging noise from non-URL words
Improved URL validation efficiency
FFmpeg Management:
Enhanced FFmpeg binary verification
Added robust error handling for subprocess calls
Improved cleanup of failed operations
Added detailed logging for binary operations
Error Handling:
Fixed exception hierarchy in utils/exceptions.py
Added proper error types for different failure scenarios
Enhanced error messages with more context
Improved error propagation through the system
Process Flow:
Added proper timeout handling for subprocess calls
Enhanced environment variable handling
Better cleanup after failures
Added retry mechanisms for failed operations
FFmpeg is now properly managed:
Binaries are downloaded and verified on startup
Permissions are properly set
Hardware acceleration is detected and used when available
Resources are cleaned up properly
Error handling has been improved:
Specific exception types for different errors
Better error messages and logging
Appropriate reaction indicators
Enhanced component error handling
Resource management has been enhanced:
Failed downloads are tracked and cleaned up
Temporary files are handled properly
Queue management is more robust
Concurrent downloads are better managed
Verification has been strengthened:
FFmpeg binaries are verified
Video files are validated
Compression results are checked
Component initialization is verified
