Hitbox Livestreaming Script

hitboxstreaming.sh

# Hitbox.tv livestreaming script
# based on : https://wiki.archlinux.org/index.php/Streaming_using_twitch.tv

INRES="1920x1080" # input resolution
OUTRES="1920x1080" # output resolution
FPS="15" # target FPS
GOP="30" # i-frame interval, should be double of FPS, 
GOPMIN="15" # min i-frame interval, should be equal to fps, 
THREADS="2" # max 6
CBR="1000k" # constant bitrate (should be between 1000k - 3000k)
QUALITY="ultrafast"  # one of the many FFMPEG preset
AUDIO_RATE="44100"
STREAM_KEY="$1"

avconv -f x11grab -s "$INRES" -r "$FPS" -i :0.0 -f alsa -i pulse -f flv -ac 2 -ar $AUDIO_RATE \
    -vcodec libx264 -g $GOP -keyint_min $GOPMIN -b $CBR -minrate $CBR -maxrate $CBR -pix_fmt yuv420p\
    -s $OUTRES -preset $QUALITY -tune film -acodec libmp3lame -threads $THREADS -strict normal \
    -bufsize $CBR "rtmp://live.hitbox.tv/push/$STREAM_KEY"