Congress everywhere

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You are looking at an event that took place in the past

Event: Congress everywhere
Featured:
State:	Completed
Start date:	2014/12/27
Start time:	10:00
End date:	2014/12/30
End time:	22:00
Contact:	Vicarious or xopr
Kind:	Conference
Location:	ACKspace
URL:	https://events.ccc.de/congress/2014/wiki/Main Page
Fee:	Free
Short description:	Unable to attend 31C3? Watch the 31C3 streams from our hackerspace

synopsis

Watch 31C3 live on a projector in the space, or listen to it via the phone.

Also see CCC's Congress_everywhere

attended

• Xopr
• Da Syntax
• Prodigity
• Roelke
• Eagle00789

Hint: add yourself by typing:

* ~~~

stats

• 4 days of streaming
• 5 multicast streams
• 3 broken wifi networks (due to mulicasting)
• 3 screens/projectors
• internet reached temperatures of -4°C (because it's running outside)
• 4 liters of (warm) chocolate milk
• 3 liters of ice tea
• 2 liters of milk
• 4.5 liters of beer
• unknown amount of Club Mate
• 3 liters of coffee
• 2 cans of whipped cream
• 20 donuts (oliebollen)
• 1 almond bar
• 3 bags of crisps/chips
• 1 pack of cashew nuts
• 4 frikandel rolls
• 15 buns
• 1 pack of cheese
• 1 pack of turkey slices
• 1 pack of chicken-curry spread
• 15 hours of sleep

schedule

You can find the complete schedule on: https://events.ccc.de/congress/2014/wiki/Static:Schedule And the 'Farhplan' on https://events.ccc.de/congress/2014/Fahrplan/

VLC config files

broadcast.conf

fetch 4 unicast streams and put them out as multicast

# cvlc --vlm-conf /home/xopr/Desktop/VLC/broadcast.conf
# vlc rtp://@239.255.255.42:5004

new channel1 broadcast enabled
#setup channel1 input "http://hls.stream.c3voc.de/hls/s1_native.m3u8"
setup channel1 input "http://hls.stream.c3voc.de/hls/s1_native_sd.m3u8"
setup channel1 output #rtp{mux=ts,dst=239.255.255.42,port=9001,sdp=sap://,name="Saal 1"}

new channel2 broadcast enabled
#setup channel2 input "http://hls.stream.c3voc.de/hls/s2_native.m3u8"
setup channel2 input "http://hls.stream.c3voc.de/hls/s2_native_sd.m3u8"
setup channel2 output #rtp{mux=ts,dst=239.255.255.42,port=9002,sdp=sap://,name="Saal 2"}

new channel3 broadcast enabled
#setup channel3 input "http://hls.stream.c3voc.de/hls/s3_native.m3u8"
setup channel3 input "http://hls.stream.c3voc.de/hls/s3_native_sd.m3u8"
setup channel3 output #rtp{mux=ts,dst=239.255.255.42,port=9003,sdp=sap://,name="Saal G"}

new channel4 broadcast enabled
#setup channel4 input "http://hls.stream.c3voc.de/hls/s4_native.m3u8"
setup channel4 input "http://hls.stream.c3voc.de/hls/s4_native_sd.m3u8"
setup channel4 output #rtp{mux=ts,dst=239.255.255.42,port=9004,sdp=sap://,name="Saal 6"}


control channel1 play
control channel2 play
control channel3 play
control channel4 play

saal_mosaic.conf

Pick up on the 4 multicast streams and put them in a mosaic

# run with
# cvlc --vlm-conf /home/xopr/Desktop/VLC/saal_mosaic.conf --mosaic-width 1280 --mosaic-order "1,2,3,4" --mosaic-height 720

new channel1 broadcast enabled
setup channel1 input "rtp://@239.255.255.42:9001"
#setup channel1 output #mosaic-bridge{id=1,height=360,width=640}
setup channel1 output #duplicate{dst=mosaic-bridge{id=1,height=360,width=640},select=video,dst=bridge-out{id=1},select=audio}

new channel2 broadcast enabled
setup channel2 input "rtp://@239.255.255.42:9002"
#setup channel2 output #mosaic-bridge{id=2,height=360,width=640}
setup channel2 output #duplicate{dst=mosaic-bridge{id=2,height=360,width=640},select=video,dst=bridge-out{id=2},select=audio}

new channel3 broadcast enabled
setup channel3 input "rtp://@239.255.255.42:9003"
#setup channel3 output #mosaic-bridge{id=3,height=360,width=640}
setup channel3 output #duplicate{dst=mosaic-bridge{id=3,height=360,width=640},select=video,dst=bridge-out{id=3},select=audio}

new channel4 broadcast enabled
setup channel4 input "rtp://@239.255.255.42:9004"
#setup channel4 output #mosaic-bridge{id=4,height=360,width=640}
setup channel4 output #duplicate{dst=mosaic-bridge{id=4,height=360,width=640},select=video,dst=bridge-out{id=4},select=audio}


new mosaic broadcast enabled
setup mosaic input "file:///home/xopr/Desktop/VLC/ACKbg-1280x720.jpg"
setup mosaic option image-duration=-1
setup mosaic option image-fps=24/1
setup mosaic option mosaic-rows=2
setup mosaic option mosaic-cols=2
setup mosaic option mosaic-position=1
setup mosaic output #transcode{sfilter=mosaic,vcodec=mp2v,vb=500,scale=1}:bridge-in{delay=400,id-offset=100}:rtp{mux=ts,dst=239.255.255.42,port=5004,sap,name="Mosaic"}

control channel1 play
control channel2 play
control channel3 play
control channel4 play
control mosaic play

files

• 

  ACKbg-1280x720.jpg

• 

  TSbg-1280x720.png

notes and other info

• 4 HD streams were too heavy for my dual core hyperthreaded 2.4GHz laptop: it would glitch into an unintelligible paint blob
• using a VLM config file to open multiple streams with bandwith/cpu issues causes all streams to pause upon reconnecting a stream that went out of sync. Use a separate instance for each stream
• the RTP stream seems to emit some type of timecode, so multiple streams are fairly in sync. Picking up on the RTP streams to create an RTP mosaic will off course delay that mosaic
• In 2013, Xopr wrote an XBMC remote control script for streams to switch channels from within a console with just one keypress.
• Multicast streams didn't work on wifi (as expected), but even worse: multicast broke the wifi networks

Links

• live CCC streaming
• Congress 2014 main page
• Static Schedule
• Category: 31c3
• events.ccc.de
• C.H.A.O.S.
• CCC-TV

other versions

List of German hacker conferences
	Chaos Communication Camp	Chaos Communication Congress
2020		rC3
2019	CCC 2019	36C3
2018		35C3
2017		34C3
2016		33C3
2015	CCC 2015	32C3
2014		31C3
2013		30C3
2012		29C3
2011	CCC 2011	28C3