#!/bin/bash
#
# GStreamer command line wrapper
#
# Thanks to rafael at riseup.net and the following documents:
#
#   http://current.workingdirectory.net/posts/2010/video4linux-and-audio/
#   http://mcs.hackitectura.net/tiki-index.php?page=live+stream+with+gstreamer
#   https://en.wikibooks.org/wiki/Puredyne/Stream_Audio_and_Video#Gstreamer
#   http://wm161.net/2011/03/02/anchorman/
#
# Needed packages: v4l-utils gstreamer-tools
#
# Example config:
#
#   SERVER="icecast.example.org"
#   PORT="8000"
#   PASS="hackme"
#   MOUNT="mount.ogv"
#   NAME="Stream"
#   DESC="Description"
#   GENRE="Genre"
#   URL="http://example.org"

# Parameters
DATE="`date +%Y%m%d%H%M%S`"
BASE="~/.config/start-streaming"
CONFIG="$1"

# Parsing
if [ -z "$CONFIG" ]; then
  echo "usage: `basename $0` <config>"
  exit 1
fi

mkdir -p $BASE

if [ ! -f "$BASE/$CONFIG.conf" ]; then
  echo "error: no $BASE/$CONFIG.conf found"
  exit 1
fi

source $BASE/$CONFIG.conf

#v4l2-ctl --set-input 1

# Video source: screen
gst-launch ximagesrc ! queue ! textoverlay text="$DESC" font-desc="50px" ! queue ! ffmpegcolorspace ! videoscale ! video/x-raw-yuv,width=320,height=240 ! theoraenc bitrate=100 ! queue ! oggmux name=mux alsasrc ! queue ! audioconvert ! vorbisenc bitrate=48000  ! queue ! mux. mux. ! tee name=tt ! queue ! filesink location=$DATE-$MOUNT tt. ! queue ! shout2send ip=$SERVER port=$PORT password=$PASS mount=/$MOUNT streamname="$NAME" description="$DESC" genre="$GENRE" url=$URL

# Video source: camera
#gst-launch v4l2src ! queue ! textoverlay text="$DESC" font-desc="50px" ! queue ! ffmpegcolorspace ! videoscale ! video/x-raw-yuv,width=320,height=240 ! theoraenc bitrate=100 ! queue ! oggmux name=mux alsasrc ! queue ! audioconvert ! vorbisenc bitrate=48000  ! queue ! mux. mux. ! tee name=tt ! queue ! filesink location=$DATE-$MOUNT tt. ! queue ! shout2send ip=$SERVER port=$PORT password=$PASS mount=/$MOUNT streamname="$NAME" description="$DESC" genre="$GENRE" url=$URL

# norm=NTSC does not work on debian squeeze
#gst-launch v4l2src norm=NTSC ! queue ! textoverlay text="$DESC" font-desc="50px" ! queue ! ffmpegcolorspace ! videoscale ! video/x-raw-yuv,width=320,height=240 ! theoraenc bitrate=100 ! queue ! oggmux name=mux alsasrc ! queue ! audioconvert ! vorbisenc bitrate=48000  ! queue ! mux. mux. ! tee name=tt ! queue ! filesink location=$MOUNT tt. ! queue ! shout2send ip=$SERVER port=$PORT password=$PASS mount=/$MOUNT streamname="$NAME" description="$DESC" genre="$GENRE" url=$URL