[vlc-devel] [PATCH] lua: Add sd for french National Assembly live feeds
François Revol
revol at free.fr
Thu Oct 25 17:33:13 CEST 2012
Only checks for feeds on startup, should probably poll for updates or just list them all (show_all).
Signed-off-by: François Revol <revol at free.fr>
---
share/lua/sd/assembleenationale.lua | 192 +++++++++++++++++++++++++++++++++++
1 file changed, 192 insertions(+)
create mode 100644 share/lua/sd/assembleenationale.lua
diff --git a/share/lua/sd/assembleenationale.lua b/share/lua/sd/assembleenationale.lua
new file mode 100644
index 0000000..a6ea587
--- /dev/null
+++ b/share/lua/sd/assembleenationale.lua
@@ -0,0 +1,192 @@
+--[[
+ $Id$
+
+ Copyright © 2012 VideoLAN and AUTHORS
+
+ Authors: François Revol <revol at free dot fr>
+
+ 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+--]]
+
+function descriptor()
+ return { title="Assemblée Nationale" }
+end
+
+
+-- TODO: get correct names and arturl from current agenda
+
+-- web entry point:
+-- http://www.assemblee-nationale.tv/direct.html?flux=7#
+
+-- advertised command line:
+-- vlc --rtsp-tcp rtsp://a625.l31335None.c31335.g.lq.akamaistream.net/7/625/31335/v0001/assembleenat.download.akamai.com/31335/mp4/fluxh264live7-169.sdp
+
+-- references & interesting URLs:
+-- http://www.assemblee-nationale.tv/js/direct.js
+-- urlSdp + "fluxh264live"+stream+".sdp";
+-- urlIPhone+'live'+stream+'/stream'+stream+'.m3u8
+-- http://www.assemblee-nationale.tv/ahp/scripts/
+-- arturl http://www.assemblee-nationale.tv/live/images/live1.jpg
+-- seems wrong though, actually depends on agenda
+-- alive checks:
+-- http://www.assemblee-nationale.tv/php/testurl.php?checkUrl=http://www.assemblee-nationale.tv/../../../live/live1/live.txt&rnd=123456
+-- http://www.assemblee-nationale.tv/live/live1/live.txt
+-- http://www.assemblee-nationale.tv/live/live1/detection.txt
+
+function main()
+ -- disregard live checks and list all possible feeds
+ local show_all = false
+ --local name_prefix = "Assemblée Nationale"
+ local name_prefix = "DirectAN"
+ -- enable protocol-specific streams
+ -- rtmp isn't well supported yet...
+ local do_rtmp = false
+ local do_rtsp = true
+ local do_iphone = true
+ -- number of probed possible streams
+ local nb_streams = 0
+ -- base URI for each protocol
+ local iphone_base
+ -- from http://www.assemblee-nationale.tv/json/data.json
+ -- XXX: maybe parse this file directly?
+ local rtmp_base = "rtmp://172.25.13.10/live/"
+ local rtsp_base
+ -- RTMP application names, probed from JS file (XXX: use data.json instead?)
+ local rtmp_names = {}
+ local idx
+
+ -- fetch the main JS file
+ fd, msg = vlc.stream( "http://www.assemblee-nationale.tv/js/direct.js" )
+ if not fd then
+ vlc.msg.warn(msg)
+ return nil
+ end
+
+ local duration, artist, name, arturl
+
+ line = fd:readline()
+ while line ~= nil do
+ if( string.find( line, "var NB_FLUX = " ) ) then
+ _, _, str = string.find( line, "var NB_FLUX = ([0-9]+);" )
+ nb_streams = tonumber(str)
+ elseif( string.find( line, "var urlSdp = \"rtsp%://" ) ) then
+ _, _, path = string.find( line, "var urlSdp = \"([^\"]+)\"" )
+ rtsp_base = path
+ elseif( string.find( line, "urlIPhone = \"" ) ) then
+ _, _, path = string.find( line, "\"([^\"]+)\"" )
+ iphone_base = path
+ elseif( string.find( line, "var streamNames = new Array" ) ) then
+ _, _, str = string.find( line, "Array%( (.*)%);" )
+ repeat
+ _, len, s = string.find( str, "\"([^\"]+)\"" )
+ str = string.sub(str, len + 2)
+ table.insert( rtmp_names, s )
+ until string.len(str) == 0
+ end
+ line = fd:readline()
+ end
+
+ if not rtmp_base then
+ vlc.msg.warn("Unable to locate rmsp base url")
+ end
+ if not rtsp_base then
+ vlc.msg.warn("Unable to locate rtsp base url")
+ end
+ if not iphone_base then
+ vlc.msg.warn("Unable to locate iphone base url")
+ end
+
+ for idx=1,nb_streams,1 do
+ -- we have a live stream
+ local is_live = false
+ -- the stream is 16/9
+ local is_169 = false
+ -- default art for this feed; agenda can have an alternate one
+ local arturl = "http://www.assemblee-nationale.tv/live/images/live" .. idx .. ".jpg"
+ local line
+
+ vlc.msg.dbg("assembleenationale: checking live stream " .. tostring(idx))
+
+ -- XXX: disable live checks if show_all?
+
+ -- check for live stream
+ fd, msg = vlc.stream( "http://www.assemblee-nationale.tv/php/testurl.php?checkUrl=http://www.assemblee-nationale.tv/../../../live/live" .. idx .. "/live169.txt&rnd=" .. os.time() )
+ if not fd then
+ vlc.msg.warn(msg)
+ return nil
+ end
+ line = fd:readline()
+ if line == "true" then
+ --vlc.msg.dbg("LIVE 16/9")
+ is_live = true
+ is_169 = true
+ else
+ fd, msg = vlc.stream( "http://www.assemblee-nationale.tv/php/testurl.php?checkUrl=http://www.assemblee-nationale.tv/../../../live/live" .. idx .. "/live.txt&rnd=" .. os.time() )
+ if not fd then
+ vlc.msg.warn(msg)
+ return nil
+ end
+ line = fd:readline()
+ if line == "true" then
+ --vlc.msg.dbg("LIVE")
+ is_live = true
+ end
+ end
+
+ if is_live or show_all then
+
+ -- add rtsp streams
+ if do_rtsp then
+ local options={"deinterlace=1", "rtsp-tcp=1"}
+ local path
+ if is_169 then
+ path = rtsp_base .. "fluxh264live" .. tostring(idx) .. "-169.sdp"
+ else
+ path = rtsp_base .. "fluxh264live" .. tostring(idx) .. ".sdp"
+ end
+ vlc.sd.add_item( {path=path,
+ duration=duration,
+ artist=artist,
+ title=name_prefix .. " " .. idx .. " (rtsp)",
+ arturl=arturl,
+ options=options} )
+ end
+
+ -- add rtmp
+ if do_rtmp then
+ local options={"deinterlace=1"}
+ local path = rtmp_base .. rtmp_names[idx]
+ vlc.sd.add_item( {path=path,
+ duration=duration,
+ artist=artist,
+ title=name_prefix .. " " .. idx .. " (rtmp)",
+ arturl=arturl,
+ options=options} )
+ end
+
+ -- add iphone (m3u8) streams, VLC doesn't like them much yet
+ if do_iphone then
+ local options={"deinterlace=1"}
+ local path = iphone_base .. 'live' .. tostring(idx) .. '/stream' .. tostring(idx) .. '.m3u8'
+ vlc.sd.add_item( {path=path,
+ duration=duration,
+ artist=artist,
+ title=name_prefix .. " " .. idx .. " (iphone)",
+ arturl=arturl,
+ options=options} )
+ end
+ end
+ end
+end
--
1.7.10.4
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