#!/usr/bin/env bash
set -euo pipefail

if [[ $# -ne 1 ]]; then
  echo "usage: $0 OUTPUT.mp4" >&2
  exit 2
fi

output=$1
ffmpeg_bin=${FFMPEG_BIN:-ffmpeg}
mkdir -p "$(dirname "$output")"

"$ffmpeg_bin" -v error \
  -f lavfi -i "color=c=red:s=16x16:r=2:d=1" \
  -an -c:v libx264 -profile:v baseline -level 3.0 -pix_fmt yuv420p \
  -movflags +faststart -map_metadata -1 -fflags +bitexact -flags:v +bitexact \
  -metadata creation_time=1970-01-01T00:00:00Z -y "$output"

printf 'sequencer-codec-fixture path=%s bytes=%s\n' "$output" "$(wc -c < "$output")"