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authorBenjamin Franzke <benjaminfranzke@googlemail.com>2014-01-16 10:03:53 +0100
committerBenjamin Franzke <benjaminfranzke@googlemail.com>2014-01-16 10:03:53 +0100
commitad458f47debcdda8295fa477a1b7c1e20603be4d (patch)
tree2ed59d0de9ff2d2b69d5b3b120f4441e5e301712 /.local/share/libquvi-scripts/lua/website
parent487f704185644950487a233fa4ad159a7a6feaa4 (diff)
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quvi/zdf: Advertise all available formats
This is actually a rewrite from simple search-one-url-parsing to iterating them all and decide which one to use on some heuristics.
Diffstat (limited to '.local/share/libquvi-scripts/lua/website')
-rw-r--r--.local/share/libquvi-scripts/lua/website/zdfmediathek.lua219
1 files changed, 173 insertions, 46 deletions
diff --git a/.local/share/libquvi-scripts/lua/website/zdfmediathek.lua b/.local/share/libquvi-scripts/lua/website/zdfmediathek.lua
index 9e75d4d..d5075ef 100644
--- a/.local/share/libquvi-scripts/lua/website/zdfmediathek.lua
+++ b/.local/share/libquvi-scripts/lua/website/zdfmediathek.lua
@@ -1,62 +1,126 @@
+local ZDFmediathek = {} -- Utility functions unique to this script.
+
-- Identify the script.
function ident(self)
package.path = self.script_dir .. '/?.lua'
+ local B = require 'quvi/bit'
local C = require 'quvi/const'
+ local U = require 'quvi/util'
local r = {}
r.domain = "zdf%.de"
r.formats = "default|best"
- local B = require 'quvi/bit'
r.categories = B.bit_or(C.proto_http, C.proto_rtsp)
- local U = require 'quvi/util'
r.handles = U.handles(self.page_url, {r.domain}, {"/ZDFmediathek/"})
return r
end
-- Query available formats.
function query_formats(self)
- self.formats = "default|best"
+ local c = ZDFmediathek.get_config(self)
+ local fmts = ZDFmediathek.iter_formats(c)
+ local r = {}
+
+ table.sort(fmts, ZDFmediathek.compare_format)
+ for _,f in pairs(fmts) do
+ table.insert(r, ZDFmediathek.to_s(f))
+ end
+ self.formats = table.concat(r, "|")
return self
end
-function parse_video(self, c)
- local url = c:match('<quality>veryhigh</quality>%s*' ..
- '<url>(http://n?rodl%.zdf%.de/[^<]+%.mp4)</url>')
- or error("no match: url")
-
- local meta_url = c:match('<quality>hd</quality>%s*<url>([^>]+%.meta)</url>')
- if meta_url then
- url = http_mp4_from_meta(meta_url) or url
- -- OLD code:
- -- known replacements from veryhigh mp4 to hd mp4:
- -- either: suffix _hd instead of _vh
- --url = string.gsub(url, "_vh.mp4", "_hd.mp4")
- -- or:
- --url = string.gsub(url, "1596k_p13v9", "3056k_p15v9")
+-- Parse media URL.
+function parse(self)
+ local U = require 'quvi/util'
+
+ local c = ZDFmediathek.get_config(self)
+ local fmts = ZDFmediathek.iter_formats(c)
+
+ local f = U.choose_format(self, fmts,
+ ZDFmediathek.choose_best,
+ ZDFmediathek.choose_default,
+ ZDFmediathek.to_s)
+ or error("unable to match format")
+
+ self.url = { f.url or error("no match: media URL") }
+
+ return self
+end
+
+function ZDFmediathek.merge_format(fmt1, fmt2)
+ local t = {}
+ for k,v in pairs(fmt1) do t[k] = v end
+ for k,v in pairs(fmt2) do t[k] = v end
+ return t
+end
+
+function ZDFmediathek.table_add_format(t, fmt)
+ -- Only accessible with HBBTV user agent, lets drop it
+ -- FIXME: store facets in fmt and match for <facet>hbbtv</facet>?
+ if fmt.url:match('http://www.metafilegenerator.de/') then
+ return
end
+ -- The livestream smil URL is not accessible (404)
+ if fmt.type == "h264_aac_mp4_rtmp_smil_http" then
+ return
+ end
+
+ table.insert(t, fmt)
+
+ -- Some URLs/Formats are not explicitly listed but can be derived:
- if (c:match('<height>576</height>%s*<width>1024</width>')) then
- url = string.gsub(url, "1456k_p13v11", "2256k_p14v11")
+ -- The "high"-quality f4m file may contain a reference to a file that is
+ -- of better quality than "veryhigh" classified http streams.
+ -- Example: 2256k instead of 1496k
+ if fmt.quality == "high" and fmt.type == "h264_aac_f4f_http_f4m_http" then
+ local new = { type = "h264_aac_mp4_http_na_na",
+ container = "mp4", quality = "veryhigh_ext" }
+ new.url = ZDFmediathek.http_mp4_from_f4m(fmt.url)
+ if new.url then
+ table.insert(t, ZDFmediathek.merge_format(fmt, new))
+ end
end
- self.url = { url }
+ if fmt.quality == "hd" and fmt.type == "h264_aac_mp4_rtmp_zdfmeta_http" then
+ local new = { type = "h264_aac_mp4_http_na_na", container = "mp4",
+ proto = "http" }
+ new.url = ZDFmediathek.http_mp4_from_meta(fmt.url)
+ if new.url then
+ table.insert(t, ZDFmediathek.merge_format(fmt, new))
+ end
+ end
- return self
+ return
end
-function parse_live_video(self, c)
- self.url = { c:match("<quality>veryhigh</quality>%s*" ..
- "<url>(rtsp://[^<]+)</url>")
- or error("no match: rtsp url") }
- return self
+function ZDFmediathek.iter_formats(c)
+ local p = {
+ '<formitaet basetype="((.-)_(.-)_(.-)_(.-)_.-)".->',
+ '<quality>(.-)</quality>',
+ '<url>(.-)</url>',
+ '(.-)',
+ '</formitaet>'
+ }
+ local t = {}
+
+ for type,vcodec,acodec,container,proto,quality,url,data in
+ c:gmatch(table.concat(p, '%s*')) do
+ f = { type = type, container = container, url = url, vcodec = vcodec,
+ acodec = acodec, proto = proto, quality = quality }
+ -- width and height are not available for live streams -> may be nil
+ f.width = tonumber(data:match("<width>(.-)</width>"))
+ f.height = tonumber(data:match("<height>(.-)</height>"))
+ ZDFmediathek.table_add_format(t, f)
+ end
+
+ return t
end
--- Parse media URL.
-function parse(self)
+function ZDFmediathek.get_config(self)
self.host_id = "zdfmediathek"
- self.id = self.page_url:match("/ZDFmediathek/#?/?beitrag/video/(%d+)") or
- self.page_url:match("/ZDFmediathek/#?/?beitrag/live/(%d+)")
+ self.id = self.page_url:match('/ZDFmediathek/#?/?beitrag/video/(%d+)') or
+ self.page_url:match('/ZDFmediathek/#?/?beitrag/live/(%d+)')
or error ("no match: media id")
local xml = { "http://www.zdf.de/",
@@ -64,34 +128,97 @@ function parse(self)
local c = quvi.fetch(table.concat(xml), {fetch_type='config'})
if not(c:match('<statuscode>ok</statuscode>')) then
- local msg = { 'error: ', xml_get(c, 'statuscode', false),
- ' - ', xml_get(c, 'debuginfo', false) }
- error(table.concat(msg))
+ error(table.concat({'error:', xml_get(c, 'statuscode', false), '-',
+ xml_get(c, 'debuginfo', false)}, ' '))
end
- local type = xml_get(c, 'type', false)
self.title = xml_get(c, 'title', false)
- self.thumbnail_url = c:match('<teaserimage alt=".-" key="946x532">'..
- '([^<]+)</teaserimage>')
- if type == "video" then
- return parse_video(self, c)
- elseif type == "livevideo" then
- return parse_live_video(self, c)
- else
- error("unknown video type")
+ self.thumbnail_url =
+ c:match('<teaserimage alt=".-" key="946x532">([^<]+)</teaserimage>')
+
+ -- Quirks for broken stream descriptors
+ if xml_get(c, 'type', false) == "livevideo" then
+ -- The server returns 403 without ?hdcore
+ c = c:gsub('manifest%.f4m</url>', 'manifest.f4m?hdcore</url>')
+
+ -- Fix incorrect basetype
+ c = c:gsub('h264_aac_na_rtsp_mov_http', 'h264_aac_3gp_rtsp_na_na')
end
-end
--- utlity
+ return c
+end
---
-function http_mp4_from_meta(meta_url)
+function ZDFmediathek.http_mp4_from_meta(meta_url)
local c = quvi.fetch(meta_url, {fetch_type='config'})
local path = c:match("mp4:(.-%.mp4)")
return path and "http://nrodl.zdf.de/none/" .. path or nil
end
+function ZDFmediathek.http_mp4_from_f4m(f4m_url)
+ local c = quvi.fetch(f4m_url, {fetch_type='config'})
+ local max_bitrate = 0
+ local path = nil
+
+ for p, bitrate in c:gmatch('<media href="(.-)/manifest%.f4m%?hdcore"'..
+ ' bitrate="(%d+)"/>') do
+ if tonumber(bitrate) > max_bitrate then
+ max_bitrate = tonumber(bitrate)
+ path = p
+ end
+ end
+
+ return path and "http://nrodl.zdf.de/none/" .. path or nil
+end
+
+function ZDFmediathek.rank_type(f)
+ local rank = {
+ h264_aac_mp4_http_na_na = 4,
+ vp8_vorbis_webm_http_na_na = 3,
+ h264_aac_3gp_rtsp_na_na = 2,
+ h264_aac_ts_http_m3u8_http = 1
+ }
+ return rank[f.type] and rank[f.type] or 0
+end
+
+function ZDFmediathek.rank_quality(f)
+ local r = {
+ hd = 6, veryhigh_ext = 5, veryhigh = 4, high = 3, med = 2, low = 1
+ }
+ return rank[f.quality] and rank[f.quality] or 0
+end
+
+function ZDFmediathek.compare_format(f1, f2)
+ local t1 = ZDFmediathek.rank_type(f1)
+ local t2 = ZDFmediathek.rank_type(f2)
+
+ if (t1 ~= t2) then
+ return t1 > t2
+ end
+
+ if f1.width and f2.width and f1.height and f2.height then
+ local U = require 'quvi/util'
+ return U.is_higher_quality(f1, f2)
+ end
+
+ return ZDFmediathek.rank_quality(f1) > ZDFmediathek.rank_quality(f2)
+end
+
+function ZDFmediathek.choose_best(t)
+ table.sort(t, ZDFmediathek.compare_format)
+ return t[1]
+end
+
+ZDFmediathek.choose_default = ZDFmediathek.choose_best
+
+function ZDFmediathek.to_s(t)
+ return string.format("%s%s_%s%s",
+ t.container,
+ (t.proto ~= "http") and '_' .. t.proto or '',
+ t.quality,
+ (t.height) and '_' .. t.height ..'p' or '')
+end
+
--For very simple XML value extraction.
function xml_get(d, e, is_cdata)