sbclでコンパイルしてみるテスト
http://fridge-shell.blogspot.com/2007/02/sbcl.html
$ ls -l out -rwxr-xr-x 1 rubikitch users 1059 2007-06-20 01:10 out $ file out out: Bourne shell script text executable
やけに実行ファイルが小さいなと思ったら…
なーんだ、faslを読み込むshell scriptかよ!
ffplayの再生時間をratpoisonのmessage barに表示する
ffmpeg附属のmovie playerのffplayは再生時間が画面に出てこない。
一方、-statsオプションをつけると標準出力に再生時間が出力される。
その標準出力をパイプで読み込んでratpoisonのmessage barに表示しちゃおうというのがこのスクリプト。
最近はyoutubeなどflvを見ることが多いので重宝している。
パイプ、マルチスレッドプログラミングの簡単な使用例としてもどうぞ。
#!/usr/bin/env ruby # rp-ffplay - ffplay with current time/duration display in ratpoison message bar # # Copyright (C) 2007 rubikitch <rubikitch@ruby-lang.org> # Version: $Id: rp-ffplay,v 1.7 2007/06/20 04:02:10 rubikitch Exp $ # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA require 'ratpoison' require 'tempfile' FFPLAY="/usr/local/bin/ffplay" def main(argv) args = argv.map{|a|"'#{a.gsub("'",%q('\\\\''))}'"}*' ' # ' err = Tempfile.new "rp-ffplay" out = IO.popen("#{FFPLAY} -stats #{args} 2> #{err.path} ") out.sync = true cur = nil duration = nil Thread.start do until duration sleep 0.99 duration = $1 if err.read =~ /Duration: (.+?), /m end end Thread.start do loop do sleep 1 Ratpoison.echo "%s/%s" % [ to_hms(cur.to_f), duration ] end end while line = out.gets("\cm") if line =~ /([\d\.]+) A-V/ cur = $1 end end Ratpoison.echo " " end def to_hms(sec) int = sec.to_i h = int / 3600 m = int % 3600 / 60 s = sec - 3600*h - 60*m "%02d:%02d:%04.1f" % [ h, m, s ] end =begin test_to_hms assert_equal "00:01:02.0", to_hms(62) assert_equal "00:01:02.2", to_hms(62.2) assert_equal "02:01:02.2", to_hms(7262.2) =end main(ARGV) if __FILE__==$0