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   return {
  31     can_parse_url = Vimeo.can_parse_url(qargs),
  32     domains = table.concat({'vimeo.com'}, ',')
  33   }
  34 end
  35
  36 -- Parse media stream URL.
  37 function parse(qargs)
  38   Vimeo.normalize(qargs)
  39
  40   local p = quvi.fetch(qargs.input_url)
  41   local U = require 'quvi/util'
  42
  43   qargs.id = qargs.input_url:match('/(%d+)$') or error('no match: media ID')
  44   qargs.duration_ms =(tonumber(p:match('"duration":(%d+)')) or 0) * 1000
  45   qargs.thumb_url = U.slash_unescape(p:match('"thumbnail":"(.-)"') or '')
  46
  47   local s = p:match('"title":(.-),') or ''
  48   qargs.title = U.slash_unescape(s):gsub('^"',''):gsub('"$','')
  49
  50   qargs.streams = Vimeo.iter_streams(qargs, p)
  51
  52   return qargs
  53 end
  54
  55 --
  56 -- Utility functions
  57 --
  58
  59 function Vimeo.can_parse_url(qargs)
  60   Vimeo.normalize(qargs)
  61   local U = require 'socket.url'
  62   local t = U.parse(qargs.input_url)
  63   if t and t.scheme and t.scheme:lower():match('^http$')
  64        and t.host   and t.host:lower():match('vimeo%.com$')
  65        and t.path   and t.path:lower():match('^/%d+$')
  66   then
  67     return true
  68   else
  69     return false
  70   end
  71 end
  72
  73 function Vimeo.iter_streams(qargs, page)
  74   local p = page:match('"profiles":{(.-)},') or error('no match: profiles')
  75
  76   local rs = page:match('"signature":"(.-)"')
  77               or error('no match: request signature')
  78
  79   local rt = page:match('"timestamp":(%d+)')
  80               or error('no match: request timestamp')
  81
  82   local f = "http://player.vimeo.com/play_redirect?clip_id=%s"
  83               .. "&sig=%s&time=%s&quality=%s&type=moogaloop_local"
  84
  85   local S = require 'quvi/stream'
  86   local r = {}
  87
  88   for e,a in p:gmatch('"(.-)":{(.-)}') do -- For each profile.
  89     for q in a:gmatch('"(.-)":%d+') do    -- For each quality in the profile.
  90       local u = string.format(f, qargs.id, rs, rt, q)
  91       local t = S.stream_new(u)
  92       t.video.encoding = string.lower(e or '')
  93       t.id = Vimeo.to_id(t, q)
  94       table.insert(r, t)
  95     end
  96   end
  97
  98   if #r >1 then
  99     Vimeo.ch_best(r)
 100   end
 101
 102   return r
 103 end
 104
 105 function Vimeo.normalize(qargs)
 106   qargs_input_url = qargs.input_url:gsub("player.", "")
 107   qargs.input_url = qargs.input_url:gsub("/video/", "/")
 108 end
 109
 110 function Vimeo.ch_best(t)
 111   t[1].flags.best = true -- Should be the 'hd'.
 112 end
 113
 114 -- Return an ID for a stream.
 115 function Vimeo.to_id(t, quality)
 116   return string.format("%s_%s", quality, t.video.encoding)
 117 end
 118
 119 -- vim: set ts=2 sw=2 tw=72 expandtab: