From 8d9744c9123c2eb88541c4c8b9df088c0dcc0efb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Motiejus=20Jak=C5=A1tys?= <motiejus@jakstys.lt>
Date: Wed, 26 Nov 2025 17:37:15 +0200
Subject: [PATCH] add a script

---
 scripts/mkv-to-webm | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100755 scripts/mkv-to-webm

diff --git a/scripts/mkv-to-webm b/scripts/mkv-to-webm
new file mode 100755
index 0000000..037275c
--- /dev/null
+++ b/scripts/mkv-to-webm
@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+F="${1:?need arg1 to be set to input .mkv}"
+OUT="${1%.mkv}.webm"
+LOGBASE="${OUT}.passlog"
+
+# Pass 1: video only, stats only
+ffmpeg -y \
+  -i "$F" \
+  -map 0:v:0 \
+  -c:v libsvtav1 -preset 5 -crf 30 -g 240 -pix_fmt yuv420p \
+  -an -pass 1 -passlogfile "$LOGBASE" -f webm /dev/null
+
+# Pass 2: video + copy Opus audio
+ffmpeg \
+  -i "$F" \
+  -map 0:v:0 -map 0:a:0 \
+  -c:v libsvtav1 -preset 5 -crf 30 -g 240 -pix_fmt yuv420p \
+  -c:a copy \
+  -pass 2 -passlogfile "$LOGBASE" \
+  "$OUT"