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|
{ pkgs, lib, ... }:
let
download_subs = pkgs.writers.writePython3 "download_sub" {
libraries = [ pkgs.python3Packages.subliminal ];
} ''
from subliminal import download_best_subtitles, scan_video
from babelfish import Language
import sys
video_filename = sys.argv[1]
vid = scan_video(video_filename)
try:
sub = download_best_subtitles([vid], {Language('eng')})[vid][0]
filename = '/tmp/' + vid.title + '.srt'
with open(filename, 'wb+') as file:
file.write(sub.content)
print(filename)
except: # noqa
print("/dev/null")
'';
autosub = pkgs.writeText "autosub.lua" ''
-- Requires Subliminal version 1.0 or newer
-- Make sure to specify your system's Subliminal location below:
local utils = require 'mp.utils'
-- Log function: log to both terminal and mpv OSD (On-Screen Display)
function log(string, secs)
secs = secs or 2 -- secs defaults to 2 when the secs parameter is absent
mp.msg.warn(string) -- This logs to the terminal
mp.osd_message(string, secs) -- This logs to mpv screen
end
function download()
log('Searching subtitles ...', 10)
table = { args = {"${download_subs}", mp.get_property('path')} }
result = utils.subprocess(table)
if result.error == nil then
-- remove trailing newline from subtitle filename
filename = string.gsub(result.stdout, "\n", "")
log(filename)
mp.commandv('sub_add', filename)
log('Subtitles ready!')
else
log('Subtitles failed downloading')
end
end
-- Control function: only download if necessary
function control_download()
duration = tonumber(mp.get_property('duration'))
if duration < 900 then
mp.msg.warn('Video is less than 15 minutes\n', '=> NOT downloading any subtitles')
return
end
-- There does not seem to be any documentation for the 'sub' property,
-- but it works on both internally encoded as well as external subtitle files!
-- -> sub = '1' when subtitles are present
-- -> sub = 'no' when subtitles are not present
-- -> sub = 'auto' when called before the 'file-loaded' event is triggered
sub = mp.get_property('sub')
if sub == '1' then
mp.msg.warn('Sub track is already present\n', '=> NOT downloading other subtitles')
return
end
mp.msg.warn('No sub track was detected\n', '=> Proceeding to download subtitles:')
download()
end
mp.add_key_binding('S', "download_subs", download)
'';
mpv = pkgs.symlinkJoin {
name = "mpv";
paths = [
(pkgs.writeDashBin "mpv" ''
exec ${pkgs.mpv}/bin/mpv -vo=gpu --no-config --script=${autosub} "$@"
'')
pkgs.mpv
];
};
in {
environment.systemPackages = [
mpv
];
}
|
