Congress everywhere
Attention:
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 |
Contents
synopsis
Watch 31C3 live on a projector in the space, or listen to it via the phone.
Also see CCC's Congress_everywhere
attended
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
- 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
