@@ -0,0 +1,37 @@
INRES="3440x1440" # input resolution
OUTRES="2560x1080" # output resolution
FPS="24" # target FPS
GOP="48" # i-frame interval, should be double of FPS,
GOPMIN=$FPS # min i-frame interval, should be equal to fps,
THREADS="4" # max 6
CBR="1000k" # constant bitrate (should be between 1000k - 3000k)
QUALITY="ultrafast" # one of the many FFMPEG preset
AUDIO_RATE="44100"
TARGET="rtmp://live-sjc.twitch.tv/app/[...]"
ffmpeg \
-f x11grab \
-s "$INRES" \
-r "$FPS" \
-i :0.0+2560 \
-f alsa \
-i pulse \
-f flv \
-ac 2 \
-ar $AUDIO_RATE \
-vcodec libx264 \
-g $GOP \
-keyint_min $GOPMIN \
-b:v $CBR \
-minrate $CBR \
-maxrate $CBR \
-pix_fmt yuv420p\
-s $OUTRES \
-preset $QUALITY \
-tune film \
-acodec libmp3lame \
-threads $THREADS \
-strict normal \
-bufsize $CBR $TARGET