NAME

muxsa-pngaac2mp4 — multiplex slides and background narration into a video file

SYNOPSIS

| muxsa-pngaac2mp4 [-a soundtrack.m4a] [-s slides.concat] [-o out.mp4]

DESCRIPTION

muxsa-pngaac2mp4 is part of muxsa (MUltipleXer for Slides and Audio), a collection of Linux tools for efficiently creating video files from presentation slides and background narration. For an overview on muxsa, see /usr/share/doc/muxsa/howto.txt and https://git-nks-public.tik.uni-stuttgart.de/edu/muxsa.

muxsa-pngaac2mp4 calls ffmpeg(1) with its concat multiplexer. It reads a series of images in .png file format, typically screenshots of a slide presentation that were taken with muxsa-kvm2png(1), an audio file in .m4a file format with the narration, typically recorded with audacity(1), and a control file containing the image file names and timing information, typically generated with muxsa-al2fc(1) from an audacity(1) label track. It produces a video file in .mp4 file format.

Options

-a alternate-soundtrack.m4a: Name of aac/m4a audio file with the background narration. Default: soundtrack.m4a
-s alternate-control-file.concat: Name of the ffmpeg concat multiplexer control file, typically generated with muxsa-al2fc(1). Default: slides.concat
-o alternate-output.mp4: Name of the video file in .mp4 format to be written. Default: out.mp4

FILES

soundtrack.m4a, slides.concat, out.mp4: Default file names. Description: see Options section.

ENVIRONMENT

(none)

BUGS

See: https://git-nks-public.tik.uni-stuttgart.de/edu/muxsa/issues

AUTHOR

Sebastian Kiesel sebastian.kiesel@tik.uni-stuttgart.de

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