Squashed

bin/compress.sh

@@ -0,0 +1,30 @@
+#!/bin/bash -x
+
+set -euo pipefail
+
+if [ "$#" -ne 5 ]; then
+    echo "Invalid number of parameters"
+    echo "Usage: compress.sh <input> <fps> <bitrate:v> <bitrate:a/copy> <output>"
+    echo "Example: compress.sh foo.mp4 30 1024k 128k bar.mp4"
+    exit 1
+fi
+
+INPUT="$1"
+FPS="$2"
+VBIT="$3"
+ABIT="$4"
+OUTPUT="$5"
+
+AUDIO=("-c:a" "aac" "-b:a" "$ABIT")
+
+# Don't murder audio quality with recompress if already appropriate bitrate
+if [ "$ABIT" == "copy" ]; then
+    AUDIO=("-c:a" "copy")
+fi
+
+ffmpeg -y -i "$INPUT" -c:v libx264 -r "$FPS" -preset slow -b:v "$VBIT" -pass 1 -vsync cfr -f null /dev/null && \
+    ffmpeg -y -i "$INPUT" -c:v libx264 -r "$FPS" -b:v "$VBIT" -pass 2 "${AUDIO[@]}" -preset slow "$OUTPUT"
+
+rm ffmpeg2pass-0.log
+rm ffmpeg2pass-0.log.mbtree
+