#!/bin/bash
# http://wiki.webmproject.org/adaptive-streaming/instructions-to-do-webm-live-streaming-via-dash
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
VP9_LIVE_PARAMS="-speed 6 -tile-columns 4 -frame-parallel 1 -threads 8 -static-thresh 0 -max-intra-rate 300 -deadline realtime -lag-in-frames 0 -error-resilient 1"
ffmpeg \
  -i $1 \
  -map 0:0 \
  -pix_fmt yuv420p \
  -c:a libvorbis \
  -c:v libvpx-vp9 \
    -s 1280x720 -keyint_min 60 -g 60 ${VP9_LIVE_PARAMS} \
    -b:v 3000k \
  -f webm_chunk \
    -header $DIR"/live/glass_360.hdr" \
    -chunk_start_index 1 \
  $DIR"/live/glass_360_"%d".chk" \
  -map 1:0 \
  -c:a libvorbis \
  -c:v libvpx \
  -deadline realtime \
  -b:a 128k -ar 44100 \
  -f webm_chunk \
    -audio_chunk_duration 2000 \
    -header $DIR"/live/glass_171.hdr" \
    -chunk_start_index 1 \
  $DIR"/live/glass_171_"%d".chk"