fix input processing of vorbis headers
fix input processing of vorbis headers

can play files with audio again (but no audio out yet)

paladox/ogv.js,xzf158/ogv.js,paladox/ogv.js,chrislearn/ogv.js,xzf158/ogv.js,xzf158/ogv.js,paladox/ogv.js,chrislearn/ogv.js,paladox/ogv.js,paladox/ogv.js,chrislearn/ogv.js,chrislearn/ogv.js,xzf158/ogv.js,chrislearn/ogv.js,xzf158/ogv.js