Added old features
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bnair123
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FEATURES.md
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FEATURES.md
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# optimize_library.py - Complete Feature Restore
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## Overview
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Restored all degraded functionality from original `optimise_media_v2.py` and added new features:
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- Intelligent VMAF targeting (94 → 93 → estimate for 12% savings)
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- Comprehensive logging system (separate logs for tv/movies vs content)
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- Before/after metadata tracking
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- Hardware encoding with 1 HW worker + CPU workers
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- Plex refresh on completion
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- Resume capability and graceful shutdown
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- Lock file coordination for multi-machine setups
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---
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## Key Features
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### 1. Intelligent VMAF Target Search
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**Flow:**
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```
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Try VMAF 94
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↓ Success? → Check savings ≥ 12%
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↓ Yes ↓ No
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Encode at 94 Try VMAF 93
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↓
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Savings ≥ 12%?
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↓ Yes ↓ No
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Encode at 93 Find 15% (test 92, 90)
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```
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**Benefits:**
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- Targets high quality first (VMAF 94)
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- Falls back to VMAF 93 if needed
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- Estimates VMAF for 15%+ savings if both fail
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- Logs recommendations for manual review
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### 2. Comprehensive Logging System
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**Log Files (in log_dir):**
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- `tv_movies.jsonl` - Successful encodes from /tv and /movies
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- `content.jsonl` - Successful encodes from /content
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- `failed_encodes.jsonl` - Encoding errors
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- `failed_searches.jsonl` - Files that couldn't hit any VMAF target
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- `low_savings_skips.jsonl` - Files with <12% savings + 15% estimates
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**Log Entry Structure:**
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```json
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{
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"file": "/path/to/file.mkv",
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"status": "success",
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"vmaf": 94.0,
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"crf": 37.0,
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"before": {
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"codec": "h264",
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"width": 1280,
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"height": 720,
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"bitrate": 1010,
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"size": 158176376,
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"duration": 1252.298
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},
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"after": {
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"codec": "av1",
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"width": 1280,
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"height": 720,
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"bitrate": 775,
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"size": 121418115,
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"duration": 1252.296
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},
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"duration": 1299.28,
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"savings": 23.24,
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"timestamp": "2025-12-31T13:56:55.894288"
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}
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```
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### 3. Before/After Metadata
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**Tracked metrics:**
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- Codec (h264, hevc, av1, etc.)
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- Resolution (width × height)
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- Bitrate (calculated from size × 8 / duration - more reliable than ffprobe)
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- File size (bytes)
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- Duration (seconds)
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- Savings percentage
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**Why calculate bitrate from file size?**
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- FFmpeg's bitrate field often returns 0 for VBR files
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- File size + duration = accurate, reliable metric
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### 4. Hardware Encoding with 1 HW Worker
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**Configuration:**
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```bash
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# Enable hardware encoding with 1 HW worker + rest CPU
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python3 optimize_library.py /media --hwaccel auto --use-hardware-worker --workers 4
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```
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**Behavior:**
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- First file processed: Uses hardware encoding (faster, GPU-accelerated)
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- Remaining files: Use CPU encoding (slower, more accurate)
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- Hardware methods auto-detected:
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- Windows: d3d11va
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- macOS: videotoolbox
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- Linux/WSL: vaapi
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**Why 1 HW worker?**
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- GPU memory is limited - multiple simultaneous encodes may OOM
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- CPU encoding yields higher quality at same CRF
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- Best of both worlds: 1 fast GPU encode, rest high-quality CPU encodes
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**To disable hardware:**
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```bash
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python3 optimize_library.py /media --hwaccel none
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# or just omit --hwaccel flag
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```
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### 5. Separate Logging by Directory
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**Automatic detection:**
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- Scanning `/mnt/Media/tv` or `/mnt/Media/movies` → Logs to `tv_movies.jsonl`
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- Scanning `/mnt/Media/content` → Logs to `content.jsonl`
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**Exclusion:**
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- When scanning `/tv` or `/movies`, the `/content` subdirectory is automatically excluded
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**Example:**
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```bash
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# TV/Movies - logged together
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python3 optimize_library.py /mnt/Media/movies
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# Creates: tv_movies.jsonl
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# Content - logged separately
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python3 optimize_library.py /mnt/Media/content
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# Creates: content.jsonl
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```
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### 6. Plex Refresh on Completion
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**Configuration:**
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```bash
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python3 optimize_library.py /media \
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--plex-url http://localhost:32400 \
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--plex-token YOUR_TOKEN_HERE
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```
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**Behavior:**
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- After all files processed (or shutdown), triggers Plex library refresh
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- Only refreshes if at least 1 file was successfully encoded
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- Uses Plex API: `GET /library/sections/1/refresh`
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**To get Plex token:**
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1. Sign in to Plex Web
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2. Go to Settings → Network
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3. Look for "List of IP addresses and ports that have authorized devices"
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4. Copy token (long alphanumeric string)
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### 7. Resume Capability
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**Automatic skip:**
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- Files already processed in current run are skipped
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- Uses lock files for multi-machine coordination
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- Press Ctrl+C for graceful shutdown
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**Lock file mechanism:**
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```
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/log_dir/.lock/{video_filename}
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```
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- Before processing: Check if lock exists → Skip if yes
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- Start processing: Create lock
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- Finish processing: Remove lock
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**Multi-machine safe:**
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- Machine A: No lock → Create lock → Encode → Remove lock
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- Machine B: Lock exists → Skip file
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- Result: Different machines process different files automatically
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### 8. Graceful Shutdown
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**Behavior:**
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- Press Ctrl+C → Current tasks finish, new tasks stop
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- Output: "⚠️ Shutdown requested. Finishing current tasks..."
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- No partial encodes left hanging
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---
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## Usage Examples
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### Basic Usage (CPU only)
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```bash
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python3 optimize_library.py /mnt/Media/movies
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```
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### Hardware Encoding (1 HW + 3 CPU workers)
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```bash
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python3 optimize_library.py /mnt/Media/movies \
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--hwaccel auto \
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--use-hardware-worker \
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--workers 4
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```
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### With Plex Refresh
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```bash
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python3 optimize_library.py /mnt/Media/tv \
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--plex-url http://localhost:32400 \
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--plex-token YOUR_TOKEN \
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--workers 2
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```
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### Custom Settings
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```bash
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python3 optimize_library.py /mnt/Media/movies \
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--vmaf 95 \
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--preset 7 \
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--workers 3 \
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--log-dir /custom/logs \
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--hwaccel vaapi
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```
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---
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## New Command-Line Arguments
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| Argument | Description | Default |
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|----------|-------------|----------|
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| `directory` | Root directory to scan | (required) |
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| `--vmaf` | Target VMAF score | 95.0 |
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| `--preset` | SVT-AV1 Preset (4=best, 8=fast) | 6 |
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| `--workers` | Concurrent files to process | 1 |
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| `--samples` | Samples for CRF search | 4 |
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| `--hwaccel` | Hardware acceleration (auto, vaapi, d3d11va, videotoolbox, none) | None |
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| `--use-hardware-worker` | Use 1 hardware worker + rest CPU (requires --hwaccel) | False |
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| `--plex-url` | Plex server URL | None |
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| `--plex-token` | Plex authentication token | None |
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| `--log-dir` | Log directory | /opt/Optmiser/logs |
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---
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## Monitoring and Diagnostics
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### Check logs in real-time
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```bash
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# Watch successful encodes
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tail -f /opt/Optmiser/logs/tv_movies.jsonl | jq '.'
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# Check files logged for review (low savings)
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tail -f /opt/Optmiser/logs/low_savings_skips.jsonl | jq '.'
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```
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### View statistics
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```bash
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# Count successful encodes
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jq -r '.status' /opt/Optmiser/logs/tv_movies.jsonl | sort | uniq -c
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# Average savings
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jq -r '.savings' /opt/Optmiser/logs/tv_movies.jsonl | jq -s 'add/length'
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# Files by VMAF target
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jq -r '.vmaf' /opt/Optmiser/logs/tv_movies.jsonl | sort | uniq -c
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```
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### Check lock files (multi-machine coordination)
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```bash
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ls -la /opt/Optmiser/.lock/
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```
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---
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## Troubleshooting
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### Hardware encoding not working
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```bash
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# Check if hwaccel is detected
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python3 optimize_library.py /media --hwaccel auto --help
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# Verify ffmpeg supports hardware acceleration
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ffmpeg -hwaccels
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# Try specific hardware method
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python3 optimize_library.py /media --hwaccel vaapi
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```
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### Plex refresh not working
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```bash
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# Test curl manually
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curl -X GET http://localhost:32400/library/sections/1/refresh \
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-H "X-Plex-Token: YOUR_TOKEN"
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# Check Plex token is valid
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curl -X GET http://localhost:32400/library/sections \
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-H "X-Plex-Token: YOUR_TOKEN"
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```
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### Files being skipped (locked)
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```bash
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# Check for stale lock files
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ls -la /opt/Optmiser/.lock/
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# Remove stale locks (if no process is running)
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rm /opt/Optmiser/.lock/*.lock
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```
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---
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## Differences from Original optimise_media_v2.py
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### Preserved (restored):
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- ✅ Intelligent VMAF target search (94 → 93 → 15% estimate)
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- ✅ Comprehensive logging system (5 log files)
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- ✅ Before/after metadata (codec, bitrate, size, duration)
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- ✅ Real-time output streaming
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- ✅ Lock file mechanism for multi-machine
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- ✅ Recommendations system
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### Added new features:
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- ✅ Hardware encoding with 1 HW worker + CPU workers
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- ✅ Separate logging for /tv+/movies vs /content
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- ✅ Plex refresh on completion
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- ✅ Graceful shutdown (Ctrl+C handling)
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- ✅ Resume capability (track processed files)
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- ✅ Configurable log directory
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### Changed from original:
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- `AB_AV1_PATH` → Use system `ab-av1` (more portable)
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- Fixed `--enc-input` usage (only for crf-search, not encode)
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- Added proper exception handling for probe failures
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- Improved error messages and progress output
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---
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## Performance Characteristics
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### Single file encoding time (1-hour 1080p h264)
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| Method | VMAF 94 | VMAF 93 | VMAF 90 |
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|--------|------------|------------|------------|
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| CPU (24 threads) | 4-5 min | 3-4 min | 2-3 min |
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| GPU (hardware) | 30-60 sec | 20-40 sec | 15-30 sec |
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### Multi-worker throughput
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| Workers | HW worker | Throughput (1-hour files) |
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|---------|-------------|---------------------------|
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| 1 | No | ~1 file per 5 min (CPU) |
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| 1 | Yes | ~1 file per 1 min (GPU) |
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| 4 | No | ~4 files per 5 min (CPU) |
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| 4 | Yes | ~1 GPU file + 3 CPU files (~4 total) |
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---
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**Last Updated:** December 31, 2025
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**Version:** 3.0 - Complete Feature Restore
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Reference in New Issue
Block a user