twitch-headless.sh

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="6" # max 6
CBR="800k" # constant bitrate (should be between 1000k - 3000k)
QUALITY="faster"  # one of the many FFMPEG preset
AUDIO_RATE="44100"
STREAM_KEY="live_XXXXXXXX_YYYYYYYYYYYYYYYYYYYY" # use the terminal command Streaming streamkeyhere to stream your video to twitch or justin
SERVER="live" # twitch server in frankfurt, see http://bashtech.net/twitch/ingest.php for list

avconv  -i rtp://@:1991/ -f alsa -i default \
        -f flv -ac 2 -ar $AUDIO_RATE \
        -vcodec libx264 -g 50 \
        -b:v $CBR -maxrate:v 3000k -bufsize:v 3000k \
        -b:a 128k \
        -pix_fmt yuv420p \
        -preset $QUALITY -tune animation \
        -acodec libmp3lame \
        -threads $THREADS \
        -map 0:v -map 1:a -map -0:a \
        "rtmp://$SERVER.twitch.tv/app/$STREAM_KEY" \
        -stats