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muxsa-pngaac2mp4: restore default output file name

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This commit is contained in:
Sebastian Kiesel 2023-08-07 09:38:39 +02:00
parent 496816ae65
commit 4f2763c5e4
1 changed files with 11 additions and 7 deletions
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18
bin/muxsa-pngaac2mp4
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@ -1,6 +1,6 @@
#!/bin/bash
# muxsa-pngaac2mp4
# muxsa-pngaac2mp4
#
# part of muxsa, https://git-nks-public.tik.uni-stuttgart.de/edu/muxsa
#
@ -8,23 +8,23 @@
# a series of slides in png file format (created with muxsa-kvm2png),
# a soundtrack.aac (recorded with audacity), and
# a ffmpeg concat multiplexer sequence file (created with muxsa-al2fc)
# and multiplex everything together
# and multiplex everything together
# into a mp4 video of the slideshow with background narration
# MIT License
#
#
# Copyright (c) 2023 Sebastian Kiesel <sebastian.kiesel@tik.uni-stuttgart.de>
#
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
@ -36,7 +36,7 @@
############################################################################
# see https://trac.ffmpeg.org/wiki/Slideshow
echo "This is muxsa-pngaac2mp4."
echo "This is muxsa-pngaac2mp4."
# first, we need to define 3 file names - check command line, then defaults:
# SLIDES_IN - concat multiplexer control file with png slide names
@ -74,6 +74,10 @@ shift "$((OPTIND-1))"
if [ -z "$VIDEO_OUT" -a -n "$1" ] ; then
VIDEO_OUT="$1"
fi
# last resort: default output file name
if [ -z "$VIDEO_OUT" ] ; then
VIDEO_OUT="out.mp4"
fi
if [ -z "$AUDIO_IN" -a -r "soundtrack.m4a" ] ; then
echo "Setting AUDIO_IN to default file name soundtrack.m4a"