mpv_gallery-screenshots

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mpv_gallery-screenshots

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In‑player tiled screenshot gallery that turns your screenshots into visual bookmarks for fast navigation. Click thumbnails to jump instantly. Export screenshots to contact sheets (PNG), CSV, and Excel table XLSX.

mpv_gallery-screenshots 최신버젼 다운로드

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# MPV Gallery Screenshots Overlay

A Lua user script for mpv that lets you:
- Save screenshots to per‑video folders
- Browse screenshots in an in‑player tiled gallery overlay
- Select, delete, and export as contact sheets (PNG), CSV, and XLSX
- Render timecode labels on thumbnails
- Keep XLSX files small via physical image resizing (Pillow), or fall back to visual scaling

Works on Linux, macOS, and Windows.

---

## Features

- Screenshots saved to `./images/<video_name>/f########.jpg` (or .png)
- In-player gallery overlay:
  - Grid navigation with paging
  - Click to seek to a screenshot's timestamp
- Exports:
  - Contact sheets (per page or all pages) → `./exports/<video>_contact_sheet_pXX.png`
  - CSV (filename, timecode, seconds, frame) → `./exports/<video>_gallery.csv`
  - XLSX via Python (`xlsxwriter`, optional `Pillow`) → `./exports/<video>.xlsx`
    - Horizontal and vertical centering of images and text
    - Row height adjusted to the image height
    - Physical image resizing with Pillow (smaller XLSX); fallback to visual scaling if Pillow is not available
- Timecode labels rendered into thumbnails (via ffmpeg filters)
- Cross-platform; ffmpeg used where available, mpv fallback where possible

---

## What’s new in this version

- Safe margins are now relative to the viewport size:
  - `SAFE_MARGIN_*_REL` are fractions of width/height; `GRID_GAP` remains in pixels.
- Fullscreen alignment fix:
  - Thumbnails are positioned using absolute OSD coordinates, so they match the clickable zones regardless of video vs. screen aspect ratio.
- Screenshot resolution control:
  - Configurable scale and minimum dimensions; preserves aspect ratio and never upscales above the source.
- Clear limit for gallery size:
  - Maximum thumbnails per page: 63 (example: 9×7 grid).

All settings are configured at the top of the script.

---

## Requirements

- mpv (0.35+ recommended; older builds may still work)
- ffmpeg in PATH (for labeled thumbnails and contact sheet composition)
- Python 3 (only for XLSX export)
  - `xlsxwriter` is required
  - `Pillow` (optional) enables physical resizing of images for smaller XLSX files

Install Python packages:
```bash
pip install xlsxwriter pillow
```

---

## Installation

1. Place `gallery_screenshots.lua` into your mpv `scripts` folder.
2. Place `gallery_xlsx_export.py` next to the Lua file (same folder).
3. Restart mpv.

Python virtual environment (recommended):
- Linux/macOS:
  ```bash
  python3 -m venv ~/venv-mpv
  source ~/venv-mpv/bin/activate
  pip install xlsxwriter pillow
  which python
  # Then set PYTHON_PATH in the Lua script to the path printed by `which python`
  ```
- Windows (PowerShell):
  ```powershell
  py -m venv C:\venv-mpv
  C:\venv-mpv\Scripts\Activate.ps1
  pip install xlsxwriter pillow
  # Then set PYTHON_PATH = "C:\\venv-mpv\\Scripts\\python.exe"
  ```

---

## Configuration

Open the Lua file and adjust the user‑configurable variables at the top section. Defaults shown below may differ from your copy.

### Paths and Python
- `PYTHON_PATH` (string or nil): Absolute path to Python interpreter. Leave `nil` to auto‑detect. It is recommended to set it up according to the instructions above.
- `XLSX_SCRIPT_NAME` (string): Python exporter script name (kept next to the Lua script).

### Gallery grid and layout
- `GRID_COLS` (int): Number of columns per page.
- `GRID_ROWS` (int): Number of rows per page.
- `GRID_GAP` (int, px): Gap between tiles and edges.
- `SAFE_MARGIN_TOP_REL` (0–1, of viewport height)
- `SAFE_MARGIN_BOTTOM_REL` (0–1, of viewport height)
- `SAFE_MARGIN_LEFT_REL` (0–1, of viewport width)
- `SAFE_MARGIN_RIGHT_REL` (0–1, of viewport width)

Notes:
- Maximum thumbnails per page is 63. Ensure `GRID_COLS × GRID_ROWS ≤ 63` (e.g., 9×7).
- Margins scale with the window; the gap remains constant in pixels.

### Screenshot output
- `SCREENSHOT_SCALE` (0.01–1.0): Base downscale factor for saved screenshots (e.g., `0.5` → 50%).
- `SCREENSHOT_MIN_WIDTH` (int, px): Minimum width; enforced without upscaling.
- `SCREENSHOT_MIN_HEIGHT` (int, px): Minimum height; enforced without upscaling.

Behavior:
- Preserves aspect ratio.
- Applies scale and then ensures the result meets the minimum width/height.
- Never upscales beyond the source dimensions.

### Time labels and selection visuals
- `ENABLE_TIME_LABELS` (bool): Draw HH:MM:SS into thumbnails.
- `LABEL_BOX_ALPHA` (0–1): Opacity of the time label background box.
- `LABEL_MARGIN_X`, `LABEL_MARGIN_Y` (int, px): Text padding inside the box.
- `LABEL_REL_SIZE` (0–1): Relative font size based on tile size.
- `SELECT_BOX_ALPHA` (0–1): Opacity of the red bottom strip indicating selection.

### Directories
- `DIR_IMAGES_BASE` (string): Per‑video screenshots folder: `./images/<video_name>/`.
- `DIR_EXPORTS_NAME` (string): Sibling exports folder: `./exports/`.

### XLSX export
- `XLSX_IMG_SCALE` (0.15–0.35 recommended): Image scale for XLSX export.
  - With Pillow: physical resizing (smaller XLSX).
  - Without Pillow: Excel visual scaling (larger XLSX, same look).

---

## Usage

Default key bindings (can be customized):
```
s                  Save screenshot → ./images/<video_name>/f########.jpg
g                  Toggle gallery overlay on/off

In gallery:
  Click            Seek to clicked thumbnail's time
  m                Toggle selection on a tile
  [  /  ]          Previous / Next page
  a                Select/Unselect all (current page)
  d                Delete selected (files + cache)
  Shift+c          Export contact sheet (current page) → ./exports/<video>_contact_sheet_pXX.png
  c                Export contact sheets for all pages
  e                Export CSV → ./exports/<video>_gallery.csv
  x                Export XLSX → ./exports/<video>.xlsx
```

- Thumbnails are cached as raw BGRA in `./images/<video>/.gallery_bgra/` and rebuilt when window size changes.

---

## Exports

- Contact sheets (PNG): ffmpeg `tile` filter composes the page (padding/margins from your grid settings).
- CSV: `filename`, `timecode` (HH:MM:SS), `seconds` (float), `frame` (if derivable from filename).
- XLSX (Python):
  - Images in column A, timecodes in column B
  - Horizontal and vertical centering
  - Row height set to the image height
  - Physical resizing with Pillow; otherwise visual scaling

---

## File structure

For a video at `.../movie.ext`:
```
.../images/movie/               # per-video screenshots
.../images/movie/.gallery_bgra  # cached BGRA tiles (auto-managed)
.../exports/                    # contact sheets, CSV, XLSX
```

Screenshots are named `f########.jpg` by default (based on estimated frame number).

---

## Troubleshooting

- ffmpeg not found:
  - Install ffmpeg and ensure it’s in PATH.
- Python not found (XLSX):
  - Set `PYTHON_PATH` in the Lua script or ensure `python3`/`python` is in PATH.
- XLSX too large:
  - Install Pillow to enable physical resizing; lower `XLSX_IMG_SCALE`.
- Gallery looks offset in fullscreen:
  - Fixed in this version (absolute OSD coordinates). If you still see issues, ensure you’re running the latest script.
- Logging:
  - Run mpv with logging to capture script output:
    ```bash
    mpv --log-file=mpv.log --msg-level=script=trace yourvideo.mkv
    ```

---

## License

MIT License. See `LICENSE`.

---

## Credits

- mpv authors and contributors
- ffmpeg project
- xlsxwriter and Pillow authors
- Community testers and issue reporters

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