|
|
68ce3c2168
|
Document and fix player module stuttering issues
Performance Analysis:
- Created PLAYER_PERFORMANCE_ISSUES.md with root cause analysis
- Identified 6 major issues causing stuttering
- Provided priority-ordered fix recommendations
Quick Fixes Implemented (Priority 1):
- Increase audio buffer: 2048 → 8192 samples (42ms → 170ms)
- Increase audio chunk size: 4096 → 16384 bytes (21ms → 85ms)
- Reduces audio underruns and stuttering significantly
Root Causes Documented:
1. Separate video/audio FFmpeg processes (no A/V sync)
2. Tiny audio buffers causing underruns
3. CPU waste on per-sample volume processing
4. Frame timing drift with no correction mechanism
5. UI thread blocking every frame update
6. Memory allocation on every frame (GC pressure)
Remaining Work (Requires More Time):
- Priority 2: Move volume control to FFmpeg (remove hot path processing)
- Priority 3: Single FFmpeg process for perfect A/V sync
- Priority 4: Frame buffer pooling to reduce GC pressure
- Priority 5: Adaptive frame timing with drift correction
Testing Checklist Provided:
- Frame rate support (24/30/60 fps)
- A/V sync validation
- Codec compatibility
- CPU usage benchmarking
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
|
2025-12-23 21:09:21 -05:00 |
|
