Masonmason 273ae71846 fix: Correct FPS calculation and reduce log spam
Key fixes:
1. FPS Calculation: Only count actual inference results, not frame processing
   - Previous: counted every frame processed (~90 FPS, incorrect)
   - Now: only counts when actual inference results are received (~9 FPS, correct)
   - Return None from _process_data when no inference result available
   - Skip FPS counting for iterations without real results

2. Log Reduction: Significantly reduced verbose logging
   - Removed excessive debug prints for preprocessing steps
   - Removed "No inference result" spam messages
   - Only log actual successful inference results

3. Async Processing: Maintain proper async pattern
   - Still use non-blocking get_latest_inference_result(timeout=0.001)
   - Still use non-blocking put_input(block=False)
   - But only count real inference throughput for FPS

This should now match standalone code behavior: ~4 FPS (1 dongle) vs ~9 FPS (2 dongles)

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-07-24 11:12:42 +08:00
..
2025-07-24 10:05:39 +08:00