This repository has no description
vidcompress: add new script
author
yemou
date
(Jun 13, 2026, 8:51 PM -0400)
commit
c2c96d83
c2c96d83c7888c9c12c2e5405447dfc997707549
parent
644e2637
644e2637ccb7e02ff5590d7784970cf1f37bf959
+96
-3
+3
-3
flake.lock
+3
-3
flake.lock
···
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"nodes": {
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"nixpkgs": {
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"locked": {
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-
"lastModified": 1771369470,
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"narHash": "sha256-0NBlEBKkN3lufyvFegY4TYv5mCNHbi5OmBDrzihbBMQ=",
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"lastModified": 1781074563,
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"narHash": "sha256-md8WlXOlfnIeHeOScMTTHFyf2d6iaTwPl2apR5EQ3P4=",
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"owner": "NixOS",
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"repo": "nixpkgs",
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"rev": "0182a361324364ae3f436a63005877674cf45efb",
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"rev": "9ae611a455b90cf061d8f332b977e387bda8e1ca",
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"type": "github"
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},
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"original": {
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flake.nix
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flake.nix
···
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scr = final.callPackage ./nix/scr.nix { };
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thm = final.callPackage ./nix/thm.nix { };
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vid2gif = final.callPackage ./nix/vid2gif.nix { };
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vidcompress = final.callPackage ./nix/vidcompress.nix { };
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yemou-scripts = final.symlinkJoin {
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name = "yemou-scripts";
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paths = [
···
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scr
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thm
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vid2gif
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vidcompress
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];
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};
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};
···
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scr = pkgs.scr;
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thm = pkgs.thm;
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vid2gif = pkgs.vid2gif;
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vidcompress = pkgs.vidcompress;
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yemou-scripts = pkgs.yemou-scripts;
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});
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};
+26
nix/vidcompress.nix
+26
nix/vidcompress.nix
···
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{
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writeScriptBin,
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bash,
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coreutils,
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ffmpeg,
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...
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}:
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writeScriptBin "vidcompress" (
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builtins.replaceStrings
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[
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"#!/bin/sh"
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"ffmpeg "
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"ffprobe "
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"printf "
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"rm "
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]
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[
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"#!${bash}/bin/sh"
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"${ffmpeg}/bin/ffmpeg "
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"${ffmpeg}/bin/ffprobe "
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"${coreutils}/bin/printf "
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"${coreutils}/bin/rm "
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]
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(builtins.readFile ../scritps/vidcompress)
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)
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scritps/vidcompress
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scritps/vidcompress
···
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#!/bin/sh
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usage() {
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printf '%b\n' "${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 - ffmpeg encoding preset to use (default: veryslow)" \
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"\t-t FILE_SIZE - file size to target in MiB (default: 50)"
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}
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while [ "$*" ]
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do
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case $1 in
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- ) shift; continue ;;
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-- ) shift; break ;;
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-* ) flag=${1#-}; shift ;;
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* ) shift; continue ;;
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esac
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while [ "$flag" ]
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do
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arg=${flag%"${flag#?}"}
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case $arg in
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c ) VIDCOMP_CODEC=$1; shift ;;
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h ) usage; exit 0 ;;
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i ) VIDCOMP_INPUT_FILE=$1; shift ;;
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o ) VIDCOMP_OUTPUT_FILE=$1; shift ;;
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t ) VIDCOMP_TARGET_SIZE=$1; shift ;;
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* ) printf '%s\n' "${0##*/}: -$arg: invalid argument" 1>&2
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usage 1>&2; exit 1 ;;
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esac
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flag=${flag#?}
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done
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done
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[ -z "$VIDCOMP_INPUT_FILE" ] && {
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printf '%s\n' "${0##*/}: missing input video" 1>&2
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usage 1>&2; exit 1
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}
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ext="${VIDCOMP_INPUT_FILE##.*}"
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: "${VIDCOMP_OUTPUT_FILE:=out.${ext}}"
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: "${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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-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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-c:a copy "${VIDCOMP_OUTPUT_FILE}"
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rm ffmpeg2pass*.log
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rm ffmpeg2pass*.log.mbtree