I'm recording all audio input and outputs that my laptop has. Including a USB audio interface to hook up XLR microphones.
I'm using pulseaudio to find all audio sources, set their volume and simply record all of them, so I can later decide which ones to actually use when editing. Attached is the whole script. I'm using Fedora 23 and some things (paths) might be specific to that. My laptop is used for giving "powerpoint" presentations, so I record whatever they are showing on the beamer as well as any audio (in or out). I record their faces separately with a camera so I can later combine all that into one video. In this script, I also set up some pulseaudio stuff that allows me to listen to all the audio over the network (on my phone) while it's recording. -- Jannes On 23 November 2015 at 11:23, Jesper Hedin <[email protected]> wrote: > Thanks a lot! > > Just one question. What is hidden in your shell variables > $AL:_AUDIO_INPUTS and $ALL_MAPPINGS > > > …Jesper > > > > > I'm using this, although I'm not going for the smallest output: > > > > $FFMPEG -hide_banner -loglevel warning -video_size ${W:-1280}x${H:-1024} > \ > > -use_wallclock_as_timestamps 1 -framerate 30 \ > > -f x11grab -i :0.0 \ > > $ALL_AUDIO_INPUTS \ > > $ALL_MAPPINGS \ > > -codec:v libx264 -pix_fmt yuv444p -qp 0 -tune stillimage -preset > ultrafast > > -profile:v high444 \ > > -codec:a copy \ > > $OUTPUT_FILE > > > > You want to have a look at the -tune and -preset options. > > > > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user >
prepare_video.sh
Description: Bourne shell script
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