nixos-config/components/media/video.nix

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{ config, pkgs, lib, ... }:
with lib;
let
obs-cmd = pkgs.rustPlatform.buildRustPackage
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rec {
pname = "obs-cmd";
version = "v0.15.2";
src = pkgs.fetchFromGitHub {
owner = "grigio";
repo = "obs-cmd";
rev = version;
sha256 = "sha256-RRkP0QLWcJLKv8oqESjMgHGW1QScANG7+fzR/rwSyDI=";
};
cargoSha256 = "sha256-JqR7MAt2VNEnZGbn+hExtFG6F7X0KhFM1n7GZ+QaHc0=";
#cargoSha256 = fakeSha256;
meta = with lib; {
description = "a minimal obs CLI for obs-websocket v5";
homepage = "https://github.com/grigio/obs-cmd";
license = licenses.mit;
maintainers = [ maintainers.mrVanDalo ];
platforms = platforms.all;
};
};
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# Lassulus streaming setup
# -------------------------
# ffmpeg \
# -f pulse \
# -i default \
# -vaapi_device /dev/dri/renderD128 \
# -f x11grab \
# -video_size 1366x768 \
# -i :0 \
# -vf 'hwupload,scale_vaapi=format=nv12' \
# -c:v h264_vaapi \
# -c:a aac \
# -b:a 96k \
# -af "highpass=f=200, lowpass=f=3000" \
# -qp 30 \
# -f flv \
# rtmp://lassul.us:1935/stream/nixos \
# ./rc3-output-$(date +%d%H%M%S).mp4
#
# Dann abspielen mit :
# mpv rtmp://lassul.us:1935/stream/nixos
# show keyboard input on desktop for screencasts
screenKey = pkgs.symlinkJoin {
name = "screen-keys";
paths =
let
screenKeyScript = { position ? "bottom", size ? "small", ... }:
pkgs.writeShellScriptBin "screenkeys-${position}-${size}" # sh
''
${pkgs.screenkey}/bin/screenkey \
--no-detach \
--bg-color '#fdf6e3' \
--font-color '#073642' \
-p ${position} \
-s ${size} \
"$@"
'';
in
lib.flatten (lib.flip map [ "large" "small" "medium" ] (size:
lib.flip map [ "top" "center" "bottom" ]
(position: screenKeyScript { inherit size position; })));
};
mpvReview =
let
moveToDir = key: dir: pkgs.writeText "move-with-${key}.lua" ''
tmp_dir = "${dir}"
function move_current_track_${key}()
track = mp.get_property("path")
os.execute("mkdir -p '" .. tmp_dir .. "'")
os.execute("mv '" .. track .. "' '" .. tmp_dir .. "'")
print("moved '" .. track .. "' to " .. tmp_dir)
mp.command("playlist-next")
end
mp.add_key_binding("${key}", "move_current_track_${key}", move_current_track_${key})
'';
delete = moveToDir "D" "./.graveyard";
good = moveToDir "G" "./.good";
in
pkgs.writers.writeDashBin "mpv-review" ''
exec ${pkgs.mpv}/bin/mpv --no-config --script=${delete} --script=${good} "$@"
'';
alphaSafe = pkgs.writers.writeBashBin "alpha-safe" ''
export PATH=${pkgs.gnused}/bin:$PATH
echo "$1" | sed 's/[^a-zA-Z0-9]/-/g' | sed 's/--/-/g' | sed 's/-$//g'
'';
sanitizeFolder = pkgs.writers.writeBashBin "sanitize-folder" (fileContents ./sanitize_folder.sh);
in
{
options.components.media.video.enable = mkOption {
type = lib.types.bool;
default = config.components.media.enable;
};
config = mkIf (config.components.media.video.enable) {
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home-manager.sharedModules = [
{
programs.obs-studio = {
enable = true;
plugins = with pkgs.obs-studio-plugins; [
obs-backgroundremoval
obs-vaapi
];
};
}
];
boot.kernelModules = [ "v4l2loopback" ];
boot.extraModulePackages = [ pkgs.linuxPackages.v4l2loopback ];
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environment.systemPackages = with pkgs; [
yt-dlp
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mplayer
mpv
mpvReview
# sanitazion
alphaSafe
sanitizeFolder
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# obs studio stuff
obs-cli
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v4l-utils
obs-cmd
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# to record your screen
# ---------------------
simplescreenrecorder
screenKey
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#obs-studio
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# to transcode video material
# ---------------------------
handbrake
ffmpeg-full
];
};
}