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vidcompress: remove default for preset
Differen't codecs handle presets differently with some not supporting
presets at all.
Also, while h265 with the veryslow preset is pretty fast, the same
can't be said for other codecs where this could end up taking hours.
author
yemou
date
(Jun 14, 2026, 10:16 AM -0400)
commit
1d91dcbc
1d91dcbc8af22fa70f981e1e090f1598cc3e216b
parent
50fd8d98
50fd8d98c227e2159502120b5355a42ec81d6153
+15
-13
+15
-13
scritps/vidcompress
+15
-13
scritps/vidcompress
···
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#!/bin/sh
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# TODO: Add hardware acceleration support
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# TODO: More consistently find a way to delete ffmpeg log files
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usage() {
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printf '%b\n' "${0##*/} -i <input_file> [OPTIONS]" \
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"\noptions:" \
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"\t-c CODEC - video codec to use (default: libx264)" \
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"\t-h - display this message" \
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"\t-o FILE - output file (default: out.ext)" \
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"\t-p PRESET - encoding preset to use (default: veryslow)" \
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printf '%b\n' "${0##*/} -i <input_file> [OPTIONS]" \
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"\noptions:" \
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"\t-c CODEC - video codec to use (default: libx264)" \
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"\t-h - display this message" \
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"\t-o FILE - output file (default: out.ext)" \
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"\t-p PRESET - encoding preset to use" \
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"\t-t FILE_SIZE - file size to target in MiB (default: 50)"
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}
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···
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: "${VIDCOMP_CODEC:=libx264}"
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: "${VIDCOMP_TARGET_SIZE:=50}"
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: "${VIDCOMP_PRESET:=veryslow}"
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a_bitrate="$(ffprobe -v error -select_streams a:0 -show_entries stream=bit_rate -of default=noprint_wrappers=1:nokey=1 \
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"${VIDCOMP_INPUT_FILE}")"
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secs="$(ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 "${VIDCOMP_INPUT_FILE}")"
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bitrate="$(fend floor \("${VIDCOMP_TARGET_SIZE} * 8388.608 / ${secs}" - \("${a_bitrate}" / 1000\)\))"
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ffmpeg -hide_banner -loglevel warning \
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-i "${VIDCOMP_INPUT_FILE}" -c:v "${VIDCOMP_CODEC}" -b:v "${bitrate}k" -preset "${VIDCOMP_PRESET}" -pass 1 \
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ffmpeg -hide_banner -loglevel info \
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-i "${VIDCOMP_INPUT_FILE}" -c:v "${VIDCOMP_CODEC}" -b:v "${bitrate}k" \
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${VIDCOMP_PRESET:+"-preset" "$VIDCOMP_PRESET"} -pass 1 \
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-an -f null -y /dev/null && \
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ffmpeg -hide_banner -loglevel warning \
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-i "${VIDCOMP_INPUT_FILE}" -c:v "${VIDCOMP_CODEC}" -b:v "${bitrate}k" -preset "${VIDCOMP_PRESET}" -pass 2 \
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ffmpeg -hide_banner -loglevel info \
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-i "${VIDCOMP_INPUT_FILE}" -c:v "${VIDCOMP_CODEC}" -b:v "${bitrate}k" \
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${VIDCOMP_PRESET:+"-preset" "$VIDCOMP_PRESET"} -pass 2 \
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-c:a copy "${VIDCOMP_OUTPUT_FILE}"
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rm ffmpeg2pass*.log*