kaledonya clips: a Discord-friendly clip site on top of Zipline

Co-Authored-By: Claude Opus 5.5 <[email protected]>

intake/app/remux.py

@@ -0,0 +1,19 @@
+"""Stream-copy an .mkv into an .mp4 so Discord can play it inline (no re-encode)."""
+import subprocess
+from pathlib import Path
+
+
+def remux_to_mp4(src: Path, dst: Path, timeout: int = 1800) -> bool:
+    cmd = [
+        "ffmpeg", "-v", "error", "-y", "-i", str(src),
+        "-map", "0:v", "-map", "0:a?", "-c", "copy",
+        "-movflags", "+faststart", str(dst),
+    ]
+    try:
+        result = subprocess.run(cmd, capture_output=True, timeout=timeout)
+        ok = result.returncode == 0 and dst.exists() and dst.stat().st_size > 0
+    except (OSError, subprocess.TimeoutExpired):
+        ok = False
+    if not ok:
+        dst.unlink(missing_ok=True)
+    return ok