53 lines
1.7 KiB
Bash
Executable File
53 lines
1.7 KiB
Bash
Executable File
#! /usr/bin/env sh
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# Mirai Nikki Bot, a video frame posting bot for Pleroma
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# Copyright (C) 2022 Anon <@Anon@yandere.cc>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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# ISSUES:
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# - https://github.com/mpv-player/mpv/issues/5498
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# MPV has an issue when outputting to jpg.
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# Colors look washed out and faded compared to png screenshots.
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# As a workaround this script will output to png then convert to jpg.
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#
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# - https://trac.ffmpeg.org/ticket/2391
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# I want to just use ffmpeg for this script, however it
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# does not support dvd subtitles. For now, I have to
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# rely on mpv to render dvdsubs correctly :(
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# TODO:
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# - Tidy up this script and add some safety checks
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# - Add some logic to the bot to detect if this script failed
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# - Research more mpv options to avoid having to use mpv + convert
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# Requiered args supplied by the bot
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INPUT_PATH="$1"
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OUTPUT_PATH="$2"
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PICKED_FRAME="$3"
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PNG_PATH="${OUTPUT_PATH%.*}.png"
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echo "$INPUT_PATH"
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echo "$OUTPUT_PATH"
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echo "$PICKED_FRAME"
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mkdir -p "$(dirname "$OUTPUT_PATH")"
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mpv "$INPUT_PATH" --sid=1 "--start=${PICKED_FRAME}" --frames=1 -o "$PNG_PATH"
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convert -quality 95 "$PNG_PATH" "$OUTPUT_PATH"
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rm -fv "$PNG_PATH"
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