47 lines
1.2 KiB
Plaintext
47 lines
1.2 KiB
Plaintext
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#!/bin/sh
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set -e
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_vidfile="/home/sdk/rec-screen.mkv"
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_outfile="/home/sdk/rec-encoded-$(date "+%Y%m%d_%H%M%S").mp4"
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_res="1920x1080"
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_fps="30"
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_mon_dev="snd/mon"
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_mic_dev="snd/default"
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_mon_in="-thread_queue_size 16 -use_wallclock_as_timestamps 1 -f sndio -i ${_mon_dev}"
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_mon_proc="-c:a pcm_s16le"
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_mic_in="-thread_queue_size 16 -use_wallclock_as_timestamps 1 -f sndio -i ${_mic_dev}"
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_mic_proc="-af pan='stereo|c0=FL|c1=FL' -c:a pcm_s16le"
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_vid_in="-framerate ${_fps} -f x11grab -i :0.0"
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_vid_proc="-qscale 0 -c:v huffyuv -framerate ${_fps}"
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_ffmpeg_param="${_vid_in} ${_mic_in} ${_mon_in} -map 0:v ${_vid_proc} -map 1:a ${_mic_proc} -map 2:a ${_mon_proc}"
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printf 'Press q to stop.\n'
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set -x
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ffmpeg -y -loglevel error -hide_banner ${_ffmpeg_param} "${_vidfile}"
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set +x
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# with audio?
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[ "$1" == "-a" ] \
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&& _audio_encode_param="-filter_complex amix=inputs=2,stereotools=phase=5,compand=attacks=0:points=-80/-115|-35.1/-80|-35/-35|20/20 -c:a aac -b:a 160k"
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printf 'Encoding...\n'
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set -x
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ffmpeg -hide_banner -y \
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-i "${_vidfile}" \
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-c:v libx264 \
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-crf 28 \
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-s ${_res} \
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-preset veryfast \
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-movflags faststart \
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-threads 12 \
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${_audio_encode_param} \
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"${_outfile}"
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set +x
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printf '%s\n' "${_outfile}"
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