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#!/bin/sh
####################################################################
# #
# THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE. #
# USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS #
# GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE #
# IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. #
# #
# THE Theora SOURCE CODE IS COPYRIGHT (C) 2009,2025 #
# by the Xiph.Org Foundation and contributors #
# https://www.xiph.org/ #
# #
####################################################################
ffmpeg=ffmpeg
if ! command -v $ffmpeg 2>&1 >/dev/null ; then
echo error: $ffmpeg executable not found!
exit 1
fi
ffprobe=ffprobe
if ! command -v $ffprobe 2>&1 >/dev/null ; then
echo error: $ffprobe executable not found!
exit 1
fi
# TODO: get script dir, and call encoder_example from the same dir, to
# support both system installed as well as local dir version
# check encoder_example as well as Debian named theora_encoder_example
if command -v encoder_example 2>&1 >/dev/null ; then
encoder_example=encoder_example
elif command -v theora_encoder_example 2>&1 >/dev/null ; then
encoder_example=theora_encoder_example
else
echo error: encoder_example or theora_encoder_example executable \
not found!
exit 1
fi
if [ -z "$2" ] ; then
echo usage:
echo $0 inputfile outputfile [$encoder_example encoder options]
echo
echo for $encoder_example encoder options run:
echo $encoder_example -h
exit
fi
inputfile=$1
outputfile=$2
shift 2
INPUT_AUDIO=0
# check if there is audio in the input file, then encoder_example
# needs a different syntax
$ffprobe -i $inputfile -show_streams -select_streams a -loglevel error | \
grep -q audio && INPUT_AUDIO=1
video=$(mktemp -u)
mkfifo -m 600 $video
# TODO: merge the two separate ffmpeg commands to a single process
$ffmpeg -i $inputfile -y -hide_banner -loglevel error -an \
-f yuv4mpegpipe $video &
if [ "$INPUT_AUDIO" = 1 ] ; then
audio=$(mktemp -u)
mkfifo -m 600 $audio
$ffmpeg -i $inputfile -y -hide_banner -loglevel error -vn -f wav \
-bitexact $audio &
$encoder_example $@ $audio $video -o $outputfile
rm -f $audio
else
$encoder_example $@ $video -o $outputfile
fi
rm -f $video
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