share/media/vimeo.lua

   1 -- libquvi-scripts
   2 -- Copyright (C) 2010-2012  Toni Gundogdu <legatvs@gmail.com>
   3 --
   4 -- This file is part of libquvi-scripts <http://quvi.sourceforge.net/>.
   5 --
   6 -- This library is free software; you can redistribute it and/or
   7 -- modify it under the terms of the GNU Lesser General Public
   8 -- License as published by the Free Software Foundation; either
   9 -- version 2.1 of the License, or (at your option) any later version.
  10 --
  11 -- This library is distributed in the hope that it will be useful,
  12 -- but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 -- Lesser General Public License for more details.
  15 --
  16 -- You should have received a copy of the GNU Lesser General Public
  17 -- License along with this library; if not, write to the Free Software
  18 -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 -- 02110-1301  USA
  20 --
  21
  22 --
  23 -- NOTE: Vimeo is picky about the user-agent string.
  24 --
  25
  26 local Vimeo = {} -- Utility functions unique to this script.
  27
  28 -- Identify the media script.
  29 function ident(qargs)
  30   local A = require 'quvi/accepts'
  31   local r = {
  32     accepts = A.accepts(qargs.input_url, {"vimeo%.com"}, {"/%d+$"})
  33   }
  34   return r
  35 end
  36
  37 -- Parse media stream URL.
  38 function parse(qargs)
  39   Vimeo.normalize(qargs)
  40
  41   local p = quvi.fetch(qargs.input_url)
  42   local U = require 'quvi/util'
  43
  44   qargs.id = qargs.input_url:match('/(%d+)$') or error('no match: media ID')
  45   qargs.duration_ms =(tonumber(p:match('"duration":(%d+)')) or 0) * 1000
  46   qargs.thumb_url = U.slash_unescape(p:match('"thumbnail":"(.-)"') or '')
  47
  48   local s = p:match('"title":(.-),') or ''
  49   qargs.title = U.slash_unescape(s):gsub('^"',''):gsub('"$','')
  50
  51   qargs.streams = Vimeo.iter_streams(qargs, p)
  52
  53   return qargs
  54 end
  55
  56 --
  57 -- Utility functions
  58 --
  59
  60 function Vimeo.iter_streams(qargs, page)
  61   local p = page:match('"profiles":{(.-)},') or error('no match: profiles')
  62
  63   local rs = page:match('"signature":"(.-)"')
  64               or error('no match: request signature')
  65
  66   local rt = page:match('"timestamp":(%d+)')
  67               or error('no match: request timestamp')
  68
  69   local f = "http://player.vimeo.com/play_redirect?clip_id=%s"
  70               .. "&sig=%s&time=%s&quality=%s&type=moogaloop_local"
  71
  72   local S = require 'quvi/stream'
  73   local r = {}
  74
  75   for e,a in p:gmatch('"(.-)":{(.-)}') do -- For each profile.
  76     for q in a:gmatch('"(.-)":%d+') do    -- For each quality in the profile.
  77       local u = string.format(f, qargs.id, rs, rt, q)
  78       local t = S.stream_new(u)
  79       t.video.encoding = string.lower(e or '')
  80       t.id = Vimeo.to_id(t, q)
  81       table.insert(r, t)
  82     end
  83   end
  84
  85   if #r >1 then
  86     Vimeo.ch_best(r)
  87   end
  88
  89   return r
  90 end
  91
  92 function Vimeo.normalize(qargs)
  93   local u = qargs.input_url:gsub("player.", "") -- player.vimeo.com
  94   qargs.input_url = u:gsub("/video/", "/")
  95 end
  96
  97 function Vimeo.ch_best(t)
  98   t[1].flags.best = true -- Should be the 'hd'.
  99 end
 100
 101 -- Return an ID for a stream.
 102 function Vimeo.to_id(t, quality)
 103   return string.format("%s_%s", quality, t.video.encoding)
 104 end
 105
 106 -- vim: set ts=2 sw=2 tw=72 expandtab: