6 Commits
1.1.3 ... 1.1.5

9 changed files with 902 additions and 19 deletions

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@@ -1,6 +1,6 @@
# PPTX Image Compressor (CaesiumCLT only)
**Version 1.1.3**
**Version 1.1.4**
Dieses Paket enthält:
@@ -32,14 +32,13 @@ Die Batch lädt bei Bedarf automatisch das **Windows Embeddable Python Package**
## Was das Tool macht
- Entpackt die PPTX in einen TempOrdner
- Komprimiert **JPG/JPEG, PNG, WebP** mit **CaesiumCLT** (Default `-q 90`, `-O bigger`)
- Komprimiert **JPG/JPEG, PNG, WebP, GIF** mit **CaesiumCLT** (Default `-q 90`, `-O bigger`)
- Ersetzt Bilder nur, wenn die komprimierte Datei kleiner ist
- Schreibt ein CSVLog (`.log` neben der OutputPPTX)
- Baut eine neue PPTX und zeigt eine Summary (Name, Größe vorher/nachher, Ersparnis %, Zeit)
- Räumt alle temporären Dateien auf (keine CaesiumTempfiles in der finalen PPTX)
## Hinweise
- **GIF** wird übersprungen (keine Rekodierung).
- `-t` steuert die Parallelität der PythonThreads; intern wird `caesiumclt --threads 1` gesetzt, sobald `-t > 1`, um Oversubscription zu vermeiden. Default ist 16
- `-q` steuert das Qualitätslevel; intern wird `caesiumclt -q` mit diesem Wert von `0..100` benutzt, Default ist 90
- Die Batch **verwendet bevorzugt das Embeddable Python** neben der BAT; ansonsten sucht sie echte `python.exe`/`py.exe` im PATH, **ignoriert** aber die MicrosoftStoreAliasPfade (`WindowsApps`).

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61
check_new_version.bat Normal file
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@@ -0,0 +1,61 @@
@echo off
setlocal EnableExtensions EnableDelayedExpansion
set UPDATE_DIR=%~dp0updates
if not exist "%UPDATE_DIR%" mkdir "%UPDATE_DIR%"
set TMP_OUT=%TEMP%\update_check_%RANDOM%.txt
set TMP_OUT_2=%TEMP%\update_check_%RANDOM%.txt
python check_new_version.py > "%TMP_OUT%"
set EXITCODE=%ERRORLEVEL%
if %EXITCODE%==20 (
echo Fehler beim Update-Check
goto :END
)
if %EXITCODE%==0 (
echo Keine Updates verfuegbar.
goto :END
)
echo.
type "%TMP_OUT%"
choice /c jn /m "Wollen Sie die Updates-Packages herunterladen?"
if errorlevel 2 goto :END
if exist "%TMP_OUT%" (
findstr /b "PYTHON_DOWNLOAD=" "%TMP_OUT%" >nul
if not errorlevel 1 (
for /f "tokens=1,* delims==" %%a in (
'findstr /b "PYTHON_DOWNLOAD=" "%TMP_OUT%"'
) do (
echo Downloading Python update from PYTHON_DOWNLOAD
powershell -NoProfile -Command ^
"Invoke-WebRequest '%%b' -OutFile '%UPDATE_DIR%\python-embed.zip'"
)
)
findstr /b "CAESIUM_DOWNLOAD=" "%TMP_OUT_2%" >nul
if not errorlevel 1 (
for /f "tokens=1,* delims==" %%a in (
'findstr /b "CAESIUM_DOWNLOAD=" "%TMP_OUT_2%"'
) do (
echo Downloading caesiumclt update from CAESIUM_DOWNLOAD
powershell -NoProfile -Command ^
"Invoke-WebRequest '%%b' -OutFile '%UPDATE_DIR%\caesiumclt.zip'"
)
)
)
:END
del "%TMP_OUT%" >nul 2>&1
del "%TMP_OUT_2%" >nul 2>&1
endlocal

121
check_new_version.py Normal file
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@@ -0,0 +1,121 @@
import argparse
import configparser
import json
import sys
import urllib.request
from pathlib import Path
INI_FILE = Path("latestversion.ini")
PYTHON_API = "https://endoflife.date/api/v1/products/python"
CAESIUM_API = "https://api.github.com/repos/Lymphatus/caesium-clt/tags"
EXIT_NO_UPDATE = 0
EXIT_UPDATE_AVAILABLE = 10
EXIT_ERROR = 20
def fetch_json(url):
with urllib.request.urlopen(url, timeout=15) as r:
return json.loads(r.read().decode("utf-8"))
def load_ini():
cfg = configparser.ConfigParser()
cfg.read(INI_FILE, encoding="utf-8")
return cfg
def save_ini(cfg):
with open(INI_FILE, "w", encoding="utf-8") as f:
cfg.write(f)
def check_python(cfg, result):
used = cfg["DEFAULT"].get("python_used_version", "").strip()
major_minor = ".".join(used.split(".")[:2])
data = fetch_json(PYTHON_API)
releases = data.get("result", {}).get("releases", [])
for rel in releases:
if rel.get("name") != major_minor:
continue
latest = rel.get("latest", {}).get("name", "")
is_maintained = rel.get("isMaintained", True)
cfg["DEFAULT"]["python_latest_version"] = latest
if used != latest:
result["updates"].append({
"tool": "python",
"used": used,
"latest": latest,
"maintained": is_maintained,
"url": (
f"https://www.python.org/ftp/python/{latest}/"
f"python-{latest}-embed-amd64.zip"
)
})
def check_caesium(cfg, result):
used = cfg["DEFAULT"].get("caesiumclt_used_version", "").strip()
tags = fetch_json(CAESIUM_API)
latest = tags[0]["name"]
cfg["DEFAULT"]["caesiumclt_latest_version"] = latest
if used != latest:
result["updates"].append({
"tool": "caesiumclt",
"used": used,
"latest": latest,
"maintained": True,
"url": (
f"https://github.com/Lymphatus/caesium-clt/releases/download/{latest}/"
f"caesiumclt-{latest}-x86_64-pc-windows-msvc.zip"
)
})
def main():
parser = argparse.ArgumentParser()
parser.add_argument("--yes", action="store_true")
parser.add_argument("--json", action="store_true")
args = parser.parse_args()
cfg = load_ini()
result = {"updates": []}
try:
check_python(cfg, result)
check_caesium(cfg, result)
except Exception as e:
print(f"ERROR: {e}")
sys.exit(EXIT_ERROR)
save_ini(cfg)
if args.json:
print(json.dumps(result, indent=2))
else:
for u in result["updates"]:
print(
f"{u['tool'].capitalize()}: aktuell genutzt {u['used']}, "
f"neu {u['latest']}, download?"
)
print(f"{u['tool'].upper()}_DOWNLOAD={u['url']}")
if not u["maintained"]:
print(
f"WARNING: Achtung Version {u['latest']} "
"wird nicht mehr gewartet!"
)
sys.exit(EXIT_UPDATE_AVAILABLE if result["updates"] else EXIT_NO_UPDATE)
if __name__ == "__main__":
main()

655
endoflifeapi.json Normal file
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@@ -0,0 +1,655 @@
{
"schema_version": "1.2.0",
"generated_at": "2026-04-08T07:17:19+00:00",
"last_modified": "2026-04-08T00:10:16+00:00",
"result": {
"name": "python",
"aliases": [],
"label": "Python",
"category": "lang",
"tags": [
"lang"
],
"versionCommand": "python --version\n\n# or alternatively\npython3 --version",
"identifiers": [
{
"type": "purl",
"id": "pkg:generic/python"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python3.14"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python3.13"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python3.12"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python3.11"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python3.10"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python3.9"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python3.8"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python3.7"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python3.6"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python3.5"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python3.4"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python3.3"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python3.2"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python3.1"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python3.0"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python2.7"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python2.6"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python2.5"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python2.4"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python2.3"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python2.2"
},
{
"type": "purl",
"id": "pkg:deb/ubuntu/python2.1"
},
{
"type": "purl",
"id": "pkg:deb/debian/python"
},
{
"type": "purl",
"id": "pkg:deb/debian/python3.14"
},
{
"type": "purl",
"id": "pkg:deb/debian/python3.13"
},
{
"type": "purl",
"id": "pkg:deb/debian/python3.11"
},
{
"type": "purl",
"id": "pkg:deb/debian/python3.9"
},
{
"type": "purl",
"id": "pkg:deb/debian/python3.7"
},
{
"type": "purl",
"id": "pkg:deb/debian/python3.5"
},
{
"type": "purl",
"id": "pkg:deb/debian/python3.4"
},
{
"type": "purl",
"id": "pkg:deb/debian/python3.2"
},
{
"type": "purl",
"id": "pkg:deb/debian/python3.1"
},
{
"type": "purl",
"id": "pkg:deb/debian/python2.7"
},
{
"type": "purl",
"id": "pkg:deb/debian/python2.6"
},
{
"type": "purl",
"id": "pkg:deb/debian/python2.5"
},
{
"type": "purl",
"id": "pkg:deb/debian/python2.4"
},
{
"type": "purl",
"id": "pkg:deb/debian/python2.3"
},
{
"type": "purl",
"id": "pkg:deb/debian/python2.2"
},
{
"type": "purl",
"id": "pkg:deb/debian/python2.1"
},
{
"type": "purl",
"id": "pkg:deb/debian/python1.5"
},
{
"type": "purl",
"id": "pkg:rpm/fedora/python3.14"
},
{
"type": "purl",
"id": "pkg:rpm/fedora/python3.13"
},
{
"type": "purl",
"id": "pkg:rpm/fedora/python3.12"
},
{
"type": "purl",
"id": "pkg:rpm/fedora/python3.11"
},
{
"type": "purl",
"id": "pkg:rpm/fedora/python3.10"
},
{
"type": "purl",
"id": "pkg:rpm/fedora/python3.9"
},
{
"type": "purl",
"id": "pkg:rpm/fedora/python3.8"
},
{
"type": "purl",
"id": "pkg:rpm/fedora/python3.6"
},
{
"type": "purl",
"id": "pkg:rpm/fedora/python3.5"
},
{
"type": "purl",
"id": "pkg:rpm/amzn/python"
},
{
"type": "purl",
"id": "pkg:rpm/amzn/python2"
},
{
"type": "purl",
"id": "pkg:rpm/amzn/python3"
},
{
"type": "purl",
"id": "pkg:rpm/redhat/python"
},
{
"type": "purl",
"id": "pkg:rpm/redhat/python2"
},
{
"type": "purl",
"id": "pkg:rpm/redhat/python3"
},
{
"type": "purl",
"id": "pkg:rpm/centos/python"
},
{
"type": "purl",
"id": "pkg:rpm/centos/python2"
},
{
"type": "purl",
"id": "pkg:rpm/centos/python3"
},
{
"type": "purl",
"id": "pkg:docker/library/python"
},
{
"type": "purl",
"id": "pkg:docker/circleci/python"
},
{
"type": "purl",
"id": "pkg:docker/bitnami/python"
},
{
"type": "purl",
"id": "pkg:github/python/cpython"
},
{
"type": "repology",
"id": "python"
},
{
"type": "cpe",
"id": "cpe:/a:python:python"
},
{
"type": "cpe",
"id": "cpe:2.3:a:python:python"
}
],
"labels": {
"eoas": "Active Support",
"discontinued": null,
"eol": "Security Support",
"eoes": null
},
"links": {
"icon": "https://cdn.jsdelivr.net/npm/simple-icons/icons/python.svg",
"html": "https://endoflife.date/python",
"releasePolicy": "https://devguide.python.org/versions/"
},
"releases": [
{
"name": "3.14",
"codename": null,
"label": "3.14",
"releaseDate": "2025-10-07",
"isLts": false,
"ltsFrom": null,
"isEoas": false,
"eoasFrom": "2027-10-01",
"isEol": false,
"eolFrom": "2030-10-31",
"isMaintained": true,
"latest": {
"name": "3.14.4",
"date": "2026-04-07",
"link": "https://www.python.org/downloads/release/python-3144/"
},
"custom": {
"pep": "PEP-0745"
}
},
{
"name": "3.13",
"codename": null,
"label": "3.13",
"releaseDate": "2024-10-07",
"isLts": false,
"ltsFrom": null,
"isEoas": false,
"eoasFrom": "2026-10-01",
"isEol": false,
"eolFrom": "2029-10-31",
"isMaintained": true,
"latest": {
"name": "3.13.13",
"date": "2026-04-07",
"link": "https://www.python.org/downloads/release/python-31313/"
},
"custom": {
"pep": "PEP-0719"
}
},
{
"name": "3.12",
"codename": null,
"label": "3.12",
"releaseDate": "2023-10-02",
"isLts": false,
"ltsFrom": null,
"isEoas": true,
"eoasFrom": "2025-04-02",
"isEol": false,
"eolFrom": "2028-10-31",
"isMaintained": true,
"latest": {
"name": "3.12.13",
"date": "2026-03-03",
"link": "https://www.python.org/downloads/release/python-31213/"
},
"custom": {
"pep": "PEP-0693"
}
},
{
"name": "3.11",
"codename": null,
"label": "3.11",
"releaseDate": "2022-10-24",
"isLts": false,
"ltsFrom": null,
"isEoas": true,
"eoasFrom": "2024-04-01",
"isEol": false,
"eolFrom": "2027-10-31",
"isMaintained": true,
"latest": {
"name": "3.11.15",
"date": "2026-03-03",
"link": "https://www.python.org/downloads/release/python-31115/"
},
"custom": {
"pep": "PEP-0664"
}
},
{
"name": "3.10",
"codename": null,
"label": "3.10",
"releaseDate": "2021-10-04",
"isLts": false,
"ltsFrom": null,
"isEoas": true,
"eoasFrom": "2023-04-05",
"isEol": false,
"eolFrom": "2026-10-31",
"isMaintained": true,
"latest": {
"name": "3.10.20",
"date": "2026-03-03",
"link": "https://www.python.org/downloads/release/python-31020/"
},
"custom": {
"pep": "PEP-0619"
}
},
{
"name": "3.9",
"codename": null,
"label": "3.9",
"releaseDate": "2020-10-05",
"isLts": false,
"ltsFrom": null,
"isEoas": true,
"eoasFrom": "2022-05-17",
"isEol": true,
"eolFrom": "2025-10-31",
"isMaintained": false,
"latest": {
"name": "3.9.25",
"date": "2025-10-31",
"link": "https://www.python.org/downloads/release/python-3925/"
},
"custom": {
"pep": "PEP-0596"
}
},
{
"name": "3.8",
"codename": null,
"label": "3.8",
"releaseDate": "2019-10-14",
"isLts": false,
"ltsFrom": null,
"isEoas": true,
"eoasFrom": "2021-05-03",
"isEol": true,
"eolFrom": "2024-10-07",
"isMaintained": false,
"latest": {
"name": "3.8.20",
"date": "2024-09-06",
"link": "https://www.python.org/downloads/release/python-3820/"
},
"custom": {
"pep": "PEP-0569"
}
},
{
"name": "3.7",
"codename": null,
"label": "3.7",
"releaseDate": "2018-06-27",
"isLts": false,
"ltsFrom": null,
"isEoas": true,
"eoasFrom": "2020-06-27",
"isEol": true,
"eolFrom": "2023-06-27",
"isMaintained": false,
"latest": {
"name": "3.7.17",
"date": "2023-06-05",
"link": "https://www.python.org/downloads/release/python-3717/"
},
"custom": {
"pep": "PEP-0537"
}
},
{
"name": "3.6",
"codename": null,
"label": "3.6",
"releaseDate": "2016-12-23",
"isLts": false,
"ltsFrom": null,
"isEoas": true,
"eoasFrom": "2018-12-24",
"isEol": true,
"eolFrom": "2021-12-23",
"isMaintained": false,
"latest": {
"name": "3.6.15",
"date": "2021-09-03",
"link": "https://www.python.org/downloads/release/python-3615/"
},
"custom": {
"pep": "PEP-0494"
}
},
{
"name": "3.5",
"codename": null,
"label": "3.5",
"releaseDate": "2015-09-13",
"isLts": false,
"ltsFrom": null,
"isEoas": true,
"eoasFrom": null,
"isEol": true,
"eolFrom": "2020-09-30",
"isMaintained": false,
"latest": {
"name": "3.5.10",
"date": "2020-09-05",
"link": "https://www.python.org/downloads/release/python-3510/"
},
"custom": {
"pep": "PEP-0478"
}
},
{
"name": "3.4",
"codename": null,
"label": "3.4",
"releaseDate": "2014-03-16",
"isLts": false,
"ltsFrom": null,
"isEoas": true,
"eoasFrom": null,
"isEol": true,
"eolFrom": "2019-03-18",
"isMaintained": false,
"latest": {
"name": "3.4.10",
"date": "2019-03-18",
"link": "https://www.python.org/downloads/release/python-3410/"
},
"custom": {
"pep": "PEP-0429"
}
},
{
"name": "3.3",
"codename": null,
"label": "3.3",
"releaseDate": "2012-09-29",
"isLts": false,
"ltsFrom": null,
"isEoas": true,
"eoasFrom": null,
"isEol": true,
"eolFrom": "2017-09-29",
"isMaintained": false,
"latest": {
"name": "3.3.7",
"date": "2017-09-19",
"link": "https://www.python.org/downloads/release/python-337/"
},
"custom": {
"pep": "PEP-0398"
}
},
{
"name": "3.2",
"codename": null,
"label": "3.2",
"releaseDate": "2011-02-20",
"isLts": false,
"ltsFrom": null,
"isEoas": true,
"eoasFrom": null,
"isEol": true,
"eolFrom": "2016-02-20",
"isMaintained": false,
"latest": {
"name": "3.2.6",
"date": "2014-10-12",
"link": "https://www.python.org/downloads/release/python-326/"
},
"custom": {
"pep": "PEP-0392"
}
},
{
"name": "2.7",
"codename": null,
"label": "2.7",
"releaseDate": "2010-07-03",
"isLts": false,
"ltsFrom": null,
"isEoas": true,
"eoasFrom": null,
"isEol": true,
"eolFrom": "2020-01-01",
"isMaintained": false,
"latest": {
"name": "2.7.18",
"date": "2020-04-19",
"link": "https://www.python.org/downloads/release/python-2718/"
},
"custom": {
"pep": "PEP-0373"
}
},
{
"name": "3.1",
"codename": null,
"label": "3.1",
"releaseDate": "2009-06-27",
"isLts": false,
"ltsFrom": null,
"isEoas": true,
"eoasFrom": null,
"isEol": true,
"eolFrom": "2012-04-09",
"isMaintained": false,
"latest": {
"name": "3.1.5",
"date": "2012-04-06",
"link": "https://www.python.org/downloads/release/python-315/"
},
"custom": {
"pep": "PEP-0375"
}
},
{
"name": "3.0",
"codename": null,
"label": "3.0",
"releaseDate": "2008-12-03",
"isLts": false,
"ltsFrom": null,
"isEoas": true,
"eoasFrom": null,
"isEol": true,
"eolFrom": "2009-06-27",
"isMaintained": false,
"latest": {
"name": "3.0.1",
"date": "2009-02-12",
"link": "https://www.python.org/downloads/release/python-301/"
},
"custom": {
"pep": "PEP-0361"
}
},
{
"name": "2.6",
"codename": null,
"label": "2.6",
"releaseDate": "2008-10-01",
"isLts": false,
"ltsFrom": null,
"isEoas": true,
"eoasFrom": null,
"isEol": true,
"eolFrom": "2013-10-29",
"isMaintained": false,
"latest": {
"name": "2.6.9",
"date": "2013-10-29",
"link": "https://www.python.org/downloads/release/python-269/"
},
"custom": {
"pep": "PEP-0361"
}
}
]
}
}

View File

@@ -12,7 +12,7 @@ set "SELF_DIR=%~dp0"
set "SCRIPT=%SELF_DIR%pptx_image_compress.py"
rem ---- Python Embeddable config ----
set "PY_EMBED_VERSION=3.13.7"
set "PY_EMBED_VERSION=3.14.4"
set "PY_EMBED_ZIP=python-%PY_EMBED_VERSION%-embed-amd64.zip"
set "PY_EMBED_URL=https://www.python.org/ftp/python/%PY_EMBED_VERSION%/%PY_EMBED_ZIP%"
set "PY_DIR=%SELF_DIR%python-embed"

6
latestversion.ini Normal file
View File

@@ -0,0 +1,6 @@
[DEFAULT]
python_used_version = 3.14.4
python_latest_version = 3.14.4
caesiumclt_used_version = v1.3.0
caesiumclt_latest_version = v1.3.0

View File

@@ -2,7 +2,7 @@
# -*- coding: utf-8 -*-
"""
PPTX Grafik-Komprimier-Tool (nur CaesiumCLT, Multi-Thread, Batch, sauberes Cleanup)
Version: 1.1.3
Version: 1.1.4
Highlights:
@@ -12,12 +12,14 @@ Highlights:
- Log: image_name,size_before,size_after,saving,saving_percent
- Summary inkl. Zeit benötigt
Änderungen in 1.1.3:
- Changed all UNICODE Chars to ASCII
Änderungen in 1.1.4:
- Libcaesium 1.1.0 kann nun auch gif verkleinern
"""
import argparse
import os
import re
import xml.etree.ElementTree as ET
import sys
import zipfile
import tempfile
@@ -30,10 +32,12 @@ from pathlib import Path
from datetime import timedelta
from concurrent.futures import ThreadPoolExecutor, as_completed
from threading import Lock
from typing import List, Optional
__version__ = "1.1.3"
ALLOWED_EXT = {".jpg", ".jpeg", ".png", ".webp", ".gif"} # GIF wird übersprungen
__version__ = "1.1.4"
ALLOWED_EXT = {".jpg", ".jpeg", ".png", ".webp", ".gif"}
PROGRESS_BAR_LEN = 40
TEMP_PREFIX = "pptx_compress_"
@@ -91,7 +95,7 @@ def compress_with_caesium(original: Path, out_dir: Path, caesium_threads: int |
raise RuntimeError("[ERROR] 'caesiumclt' wurde nicht gefunden. Bitte CaesiumCLT installieren und in PATH verfügbar machen.")
out_dir.mkdir(parents=True, exist_ok=True)
ext = original.suffix.lower()
if ext not in {".jpg", ".jpeg", ".png", ".webp"}:
if ext not in {".jpg", ".jpeg", ".png", ".webp", ".gif"}:
return None
cmd = [exe, "-q", str(quality), "-O", "bigger", "-o", str(out_dir)]
if caesium_threads is not None:
@@ -117,6 +121,38 @@ def format_duration(seconds: float) -> str:
return f"{hms}.{frac[:2]}"
return base
def get_slide_numbers_for_image(rels_dir: str, image_filename: str) -> Optional[List[int]]:
"""
Durchsucht alle .rels-Dateien im angegebenen Verzeichnis und gibt die Slide-Nummern zurück,
in denen die angegebene Bilddatei referenziert wird.
:param rels_dir: Pfad zum Verzeichnis ppt/slides/_rels
:param image_filename: z.B. 'image80.png'
:return: Liste von Slide-Nummern oder None
"""
slide_numbers = []
for rels_file in os.listdir(rels_dir):
if rels_file.startswith("slide") and rels_file.endswith(".xml.rels"):
rels_path = os.path.join(rels_dir, rels_file)
try:
tree = ET.parse(rels_path)
root = tree.getroot()
for rel in root.findall(".//{http://schemas.openxmlformats.org/package/2006/relationships}Relationship"):
target = rel.attrib.get("Target", "")
if image_filename in target:
match = re.search(r"slide(\d+).xml.rels", rels_file)
if match:
slide_number = int(match.group(1))
slide_numbers.append(slide_number)
except ET.ParseError:
print(f"Fehler beim Parsen von {rels_file}")
return slide_numbers if slide_numbers else None
# -------------------- Core per-deck processing --------------------
def process_single_deck(input_pptx: Path, output_pptx: Path, threads: int, quality: int) -> dict:
start_time = time.perf_counter()
@@ -143,7 +179,7 @@ def process_single_deck(input_pptx: Path, output_pptx: Path, threads: int, quali
log_file = output_pptx.with_suffix(".log.csv")
ensure_clean_file(log_file)
log_lines = ["image_name;size_before(kb);size_after(kb);saving(kb);saving_percent(%)\n"]
log_lines = ["image_name;size_before(kb);size_after(kb);saving(kb);saving_percent(%);in_slide_number\n"]
size_before = input_pptx.stat().st_size
result["size_before"] = size_before
@@ -151,8 +187,11 @@ def process_single_deck(input_pptx: Path, output_pptx: Path, threads: int, quali
with zipfile.ZipFile(input_pptx, "r") as z:
z.extractall(work_dir)
slides_dir = work_dir / "ppt" / "slides"
media_dir = work_dir / "ppt" / "media"
images = []
if media_dir.exists():
for f in sorted(media_dir.iterdir()):
if f.is_file() and f.suffix.lower() in ALLOWED_EXT:
@@ -173,14 +212,16 @@ def process_single_deck(input_pptx: Path, output_pptx: Path, threads: int, quali
nonlocal done_count
ext = img_path.suffix.lower()
orig_size = img_path.stat().st_size
if ext == ".gif":
with lock:
done_count += 1
log_lines.append(f"{img_path.name};{human_kb(orig_size)};{human_kb(orig_size)};0;0.0\n")
print_progress(done_count, total)
return
chosen_size = orig_size
found_in_slide=None
slide_nr=""
try:
found_in_slide = get_slide_numbers_for_image(slides_dir.name, img_path.name)
if found_in_slide is None:
slide_nr = "NOT_USED"
else:
slide_nr = str(found_in_slide)
out_sub = scratch_dir / f"img_{idx:06d}"
caesium_out = compress_with_caesium(img_path, out_sub, caesium_threads, quality)
if caesium_out and caesium_out.exists():
@@ -195,8 +236,9 @@ def process_single_deck(input_pptx: Path, output_pptx: Path, threads: int, quali
finally:
saving = orig_size - chosen_size
saving_percent = round((saving / orig_size) * 100, 2) if orig_size > 0 else 0.0
with lock:
log_lines.append(f"{img_path.name};{human_kb(orig_size)};{human_kb(chosen_size)};{human_kb(saving)};{saving_percent}\n")
log_lines.append(f"{img_path.name};{human_kb(orig_size)};{human_kb(chosen_size)};{human_kb(saving)};{saving_percent};{slide_nr}\n")
done_count += 1
print_progress(done_count, total)

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@@ -1 +0,0 @@
Place your PPTX files here for testing, or use -i with a full path.