#! /usr/bin/env sh
# Mirai Nikki Bot, a video frame posting bot for Pleroma
# Copyright (C) 2022 Anon <@Anon@yandere.cc>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
# Requiered args supplied by the bot
INPUT_PATH="$1"
OUTPUT_PATH="$2"
PICKED_FRAME="$3"
# INPUT_PATH_SUBTITLE="$(echo "$INPUT_PATH" | sed 's|\ |\\\ |g ; s|\[|\\[|g ; s|\]|\\]|g')"
# [ Brackes ] fuck up ffmpeg subtitles parameter
INPUT_PATH_SUBTITLE="$(echo "$INPUT_PATH" | sed 's|\[|\\[|g ; s|\]|\\]|g')"
mkdir -p "$(dirname "$OUTPUT_PATH")"
# -q:v on a scale of 1-31 with 1 being the best image quality
ffmpeg -ss "$PICKED_FRAME" -copyts -i "$INPUT_PATH" -frames:v 1 -q:v 1 -vf subtitles="${INPUT_PATH_SUBTITLE}" "$OUTPUT_PATH"
