77 lines
2.9 KiB
Markdown
77 lines
2.9 KiB
Markdown
# AAC to E-AC-3 Converter
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Converts AAC 5.1/7.1 audio tracks to E-AC-3 while preserving all other streams (video, subtitles, metadata).
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## Requirements
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- Python 3.6+
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- FFmpeg with E-AC-3 support
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## Usage
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```bash
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# Preview conversions (recommended first step)
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python aac2eac3.py /path/to/media --dry-run
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# Convert to new files (original.eac.mkv)
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python aac2eac3.py /path/to/media
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# Overwrite original files (creates temporary backups)
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python aac2eac3.py /path/to/media --overwrite
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# Custom FFmpeg path (e.g., Jellyfin's FFmpeg)
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python aac2eac3.py /path/to/media --ffmpeg /usr/lib/jellyfin-ffmpeg/ffmpeg
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```
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## Options
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- `path` - Directory containing .mkv/.mp4 files (searches recursively)
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- `--dry-run` - Show what would be converted without making changes
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- `--overwrite` - Replace original files instead of creating new ones
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- `--ffmpeg` - Path to FFmpeg binary (default: `ffmpeg`)
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## What it does
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- Scans directory for .mkv and .mp4 files recursively
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- Identifies AAC audio tracks with 6 channels (5.1) or 8 channels (7.1)
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- Converts those tracks to E-AC-3 @ 640 kbps
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- Note: 7.1 AAC is downmixed to 5.1 E-AC-3 (FFmpeg limitation)
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- Copies all other streams unchanged (video, subtitles, other audio)
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- Preserves all metadata (language tags, track titles, etc.)
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## Features
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- **Detailed progress tracking** - Shows file-by-file progress with conversion times
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- **Smart skipping** - Automatically skips files without AAC 5.1/7.1 tracks
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- **Comprehensive summary** - Displays statistics at the end (converted, skipped, failed, time)
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- **Color-coded output** - Easy-to-read terminal output with visual indicators
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- **Safe operation** - Creates temporary backups when using `--overwrite`
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## Example output
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```
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════════════════════════════════════════════════════════════════════
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AAC to E-AC-3 Converter
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════════════════════════════════════════════════════════════════════
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Scanning: /media/movies
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Found 5 media files
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▶ [1/5] movie.mkv
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Track 1: AAC 6ch (eng) → E-AC-3 @ 640k
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Converting → movie.eac.mkv
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✓ Completed in 45s (4.2 GB)
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▶ [2/5] another_movie.mkv
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No AAC 5.1/7.1 tracks found - skipping
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════════════════════════════════════════════════════════════════════
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Conversion Summary
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════════════════════════════════════════════════════════════════════
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Total files scanned: 5
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Successfully converted: 3
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Skipped (no AAC): 2
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Total time: 3m 25s
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Average per file: 1m 8s
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``` |