#!/bin/sh -x

AUDIOMONDEVICE=snd/0.mon
AUDIORECDEVICE=snd/0.rec

DATE=$(date "+%Y%m%d_%H%M%S")

FPS=60
CAMFPS=$(( FPS / 2 ))


### RECORDING STEP ###
ffmpeg -y -hide_banner -copyts -vsync 0 \
    -f v4l2      -thread_queue_size 4096 -framerate $CAMFPS -video_size 640x480 -input_format mjpeg  -i /dev/video0 \
    -f x11grab   -thread_queue_size 4096 -framerate $FPS -probesize 8M                               -i :0.0 \
    -f sndio     -thread_queue_size 4096 -sample_rate 44100 -channels 2                              -i snd/mon \
    -f sndio     -thread_queue_size 4096 -sample_rate 44100 -channels 1                              -i snd/rec \
    -map 0:v \
    -map 1:v \
    -map 2:a \
    -map 3:a \
    -c:a copy \
    -qscale 0 \
    -c:v huffyuv \
    ~/rec-screen-$DATE.mkv

#### ENCODING STEP ###
#ffmpeg -hide_banner -y \
#    -i ~/rec-screen-$DATE.mkv \
#    -c:v libx264 \
#    -crf 28 \
#    -s ${_res} \
#    -preset veryfast \
#    -movflags faststart \
#    -threads 12 \
#    ${_audio_encode_param} \
#    "${_outfile}"