Version 1 OneShot

2026-10-09 18:58:50 +00:00
parent 514c13d184
commit bf0d661eed
27 changed files with 3039 additions and 0 deletions
--- a/scripts/fetch_ffmpeg.py
+++ b/scripts/fetch_ffmpeg.py
@@ -0,0 +1,79 @@
+"""Download a static ffmpeg + ffprobe build for this OS into ./ffmpeg/bin.
+
+Uses the GPL builds from https://github.com/BtbN/FFmpeg-Builds (newest stable
+release branch). The app finds ./ffmpeg/bin automatically when run from source,
+and build.py --ffmpeg-dir ffmpeg/bin bundles them with the executable.
+"""
+
+from __future__ import annotations
+
+import json
+import re
+import shutil
+import sys
+import tarfile
+import tempfile
+import urllib.request
+import zipfile
+from pathlib import Path
+
+DEST = Path(__file__).resolve().parent.parent / "ffmpeg" / "bin"
+API = "https://api.github.com/repos/BtbN/FFmpeg-Builds/releases/latest"
+
+
+def pick_asset(assets: list[dict], plat: str) -> dict:
+    ext = ".zip" if plat == "win64" else ".tar.xz"
+    stable = []
+    for a in assets:
+        m = re.fullmatch(rf"ffmpeg-n(\d+)\.(\d+)-latest-{plat}-gpl-\d+\.\d+{re.escape(ext)}", a["name"])
+        if m:
+            stable.append(((int(m.group(1)), int(m.group(2))), a))
+    if stable:
+        return max(stable, key=lambda x: x[0])[1]
+    for a in assets:
+        if a["name"] == f"ffmpeg-master-latest-{plat}-gpl{ext}":
+            return a
+    raise SystemExit(f"No ffmpeg build found for {plat}")
+
+
+def main() -> int:
+    if sys.platform.startswith("win"):
+        plat, exe = "win64", ".exe"
+    elif sys.platform.startswith("linux"):
+        plat, exe = "linux64", ""
+    else:
+        raise SystemExit("Only Windows and Linux are supported")
+
+    with urllib.request.urlopen(API, timeout=30) as r:
+        asset = pick_asset(json.load(r)["assets"], plat)
+    print(f"Downloading {asset['name']} ({asset['size'] // 1_000_000} MB)...")
+
+    with tempfile.TemporaryDirectory() as tmp:
+        archive = Path(tmp) / asset["name"]
+        with urllib.request.urlopen(asset["browser_download_url"], timeout=60) as r, open(archive, "wb") as f:
+            shutil.copyfileobj(r, f)
+        DEST.mkdir(parents=True, exist_ok=True)
+        wanted = {f"ffmpeg{exe}", f"ffprobe{exe}"}
+        if archive.suffix == ".zip":
+            with zipfile.ZipFile(archive) as z:
+                for info in z.infolist():
+                    name = Path(info.filename).name
+                    if name in wanted and "/bin/" in info.filename:
+                        (DEST / name).write_bytes(z.read(info))
+        else:
+            with tarfile.open(archive) as t:
+                for m in t.getmembers():
+                    name = Path(m.name).name
+                    if name in wanted and "/bin/" in m.name:
+                        with t.extractfile(m) as src, open(DEST / name, "wb") as out:
+                            shutil.copyfileobj(src, out)
+                        (DEST / name).chmod(0o755)
+    missing = [n for n in wanted if not (DEST / n).is_file()]
+    if missing:
+        raise SystemExit(f"Archive did not contain {missing}")
+    print(f"Installed ffmpeg and ffprobe into {DEST}")
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())