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Stream Team Planning

Last edit — Jörn Nettingsmeier 2012/02/10 10:10

List of available gear
  • Sony HDR-HC1 cam, does 16:9 720i, mini-jack stereo mic in
  • Canon GL2 cam, 4:3 DV, Composite out, YC out, 4.2-84mm f1.6-2.9, mini-jack stereo mic in
  • two Canon Vixia HV30, does 16:9 1080p @ 30fps, f1.8-?, 6.1-61mm, mini jack stereo mic in (Jarek)
  • one unidentified consumer cam (Fernando)
  • good tripod with Manfrotto head+leveling (CCRMA)
  • good tripod with Manfrotto head (no leveling) (Jarek)
  • a few crappy tripods
  • Sony Z-1 (robin) [backup solution only! needs x-atlantic transfer]
  • one VGA-to-DV converter, DVI capability would be a plus
  • a fallback VGA-to-DV converter
  • loooooooong firewire cables
  • magic firewire line amplifiers
Venues
  • one main room for the paper track (Campbell Recital Hall; will have to move somewhere else on the 14th)
  • one or two workshop tracks
  • concert (video optional, we want to stream B-format and stereo and maybe 5.1)
Infrastructure

We're looking into dvswitch. Robin points out that network links are not latency-compensated1), so all cams must be hooked to the dvswitch machine directly. For the VGA capture, a netlink would be ok.

Jörn has been running current git with the liveMedia layer, and it seems to work as advertised.

No color correction, no scaling, currently no semi-transparent overlays2). The latter should be simple because there is an auto-fade option already - all we need is a manual control.

Robin has a collection of useful streaming scripts at http://rg42.org/gitweb/?p=lac2011.git;a=tree;f=tools;

Our network operations guy is Carr Wilkerson carrlane at ccrma .

To do
  • create short intro trailer (CCRMA and lac logos would be nice, Fernando has some sound snippets) – underway: trailer drafts and code
  • work out a way to receive and decode a B-format stream, perhaps including video
  • document this for users
  • set up a B-format test stream (loop)
1)
a fixed offset can be configured manually, but there are known drift and sync problems.
2)
it is trivial to patch in overlay feature - robin has a working patch - the hard part is to expose it properly in the user-interface – patch @ http://rg42.org/gitweb/?p=dvswitch.git
lac2012/streaming.1329782030.txt.gz · Last modified: 2012/02/21 00:53 by rgareus