ref: c28ff1a9de839eb79051d62837cc5faa64c159b4
dir: /usage_cx.dox/
/*! \page usage_encode Encoding The vpx_codec_encode() function is at the core of the encode loop. It processes raw images passed by the application, producing packets of compressed data. The <code>deadline</code> parameter controls the amount of time in microseconds the encoder should spend working on the frame. For more information on the <code>deadline</code> parameter, see \ref usage_deadline. \ref samples */