107 lines
2.4 KiB
Nix
107 lines
2.4 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.service.videoencoder;
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# todo : escape output and input File
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createEncoder = tmpFolder: inputFile: outputFile: # sh
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''
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mkdir -p ${tmpFolder}
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rm -rf ${tmpFolder}/*
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TMP_FILE=`mktemp --dry-run ${tmpFolder}/XXXXXXXX.${cfg.format}`
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if [ ! -f "${outputFile}" ]
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then
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${pkgs.ffmpeg}/bin/ffmpeg \
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-i "${inputFile}" \
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-filter:v scale=h='min(720\,ih)':w='min(1280\,iw)' \
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-vcodec libx264 \
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-preset veryslow \
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-profile:v ${cfg.profile} \
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${optionalString (cfg.tune != null) "-tune ${cfg.tune}"} \
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-acodec aac \
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"$TMP_FILE" \
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-hide_banner \
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&& cp $TMP_FILE "${outputFile}.${cfg.format}" \
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&& rm $TMP_FILE
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fi
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'';
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in {
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options.service.videoencoder = {
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enable = mkEnableOption "enable service.videoencoder";
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profile = mkOption {
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type = with types; string;
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default = "main";
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description = ''
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-profile:v
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'';
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};
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tune = mkOption {
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type = with types;
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nullOr (enum [ "film" "animation" "grain" "stillimage" ]);
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default = null;
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description = ''
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-tune
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'';
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};
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format = mkOption {
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type = with types; enum [ "mp4" "mkv" ];
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default = "mp4";
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description = ''
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the format
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'';
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};
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fileConfig = mkOption {
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type = with types;
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listOf (submodule {
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options = {
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inputFile = mkOption {
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# todo make this path
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type = with types; string;
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description = ''
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full path to the inputFile
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'';
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};
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outputFile = mkOption {
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type = with types; string;
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description = ''
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full path to the ouputFile
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folder must exist
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'';
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};
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};
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});
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description = ''
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list of files to encode.
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'';
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};
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};
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config = mkIf cfg.enable {
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systemd.services."videoEncoding" = {
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wantedBy = [ "multi-user.target" ];
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enable = true;
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script = let
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myList = map (value:
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createEncoder "/tmp/videoencoder" value.inputFile value.outputFile)
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cfg.fileConfig;
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in ''
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set -x
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${concatStringsSep "\n" myList}
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'';
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};
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};
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}
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