Workflow Compilation [finished]

Resize all videos to the same size

Code:
#!/bin/sh

#

# resvid - 2015 (c) wtfpl

# resize a bunch of videos to the same size

# fuck you, ffmpeg banner

exec 2>/dev/null

# where to put the resulting videos

OUTDIR=$PWD/resized

# size of the final videos

SIZE=1440:900

# create the directory for edited videos

test ! -d $OUTDIR && mkdir -p $OUTDIR

for IN in $@; do

    printf "%s ... " "$(getname $IN)"

    ffmpeg -i $IN -vf "scale=$SIZE" -b:v 5M -y $OUTDIR/$IN

    printf "OK\n"

done

Add fading effects and text to the videos

Code:
#!/bin/sh

#

# fadevid - 2015 (c) wtfpl

# add fading effect, and an overlay text to each video given as parameter

# fuck you, ffmpeg banner

exec 2>/dev/null

# where to put the resulting videos

OUTDIR=$PWD/faded

# Number of frames to use for fading effect

FADELEN=30

# the font to use to draw text

FONTPARAM="font=BitMicro01:shadowx=4:shadowy=4:fontcolor=white:fontsize=28:x=w-tw-28:y=h-th-28"

# output the name of the vid, without extension (and all lowercase)

getname() {

    echo $1 | sed 's/\(.*\)\.[^.]*/\L\1/'

}

# get the number of frames of the video (used for fade out effect)

getframes() {

    ffprobe -count_frames -show_entries stream=nb_read_frames $IN|cut -sd= -f2

}

# create the directory for edited videos

test ! -d $OUTDIR && mkdir -p $OUTDIR

# add fading effect + hover text to all videos, and put them in a subdir

for IN in $@; do

    printf "%s ... " "$(getname $IN)"

    NBFRAME=$(getframes)

    VFILTER="fade=in:0:$FADELEN"

    VFILTER="$VFILTER,fade=out:$((NBFRAME - FADELEN)):$FADELEN"

    VFILTER="$VFILTER,drawtext=$FONTPARAM:text=$(getname $IN)"

    # 5Mib bitrate looks like a sane default

    ffmpeg -i $IN -vf "$VFILTER" -b:v 5M -y $OUTDIR/$IN

    printf "OK\n"

done

Concatenate the video

Code:
#!/bin/sh

#

# usage: concatvid *.webm > final.webm

cat $@

Damn... I wish... Real script below

Code:
#!/bin/sh

#

# catvid - 2015 (c) wtfpl

# concatenate videos in an arbitrary order

# run the script in a directory containing all the videos

INTRO=${INTRO:-intro.webm}

test -z "$1" && echo "I can't do that." >&2 && exit 1

# fuck you, ffmpeg banner

exec 2>/dev/null

# create a list compatible with the "concat" demuxer of ffmpeg

# don't forget to put the intro at the top

ls -1 | grep -v $INTRO > list.txt

sed -i "s/^.*$/file '&'/" list.txt

sed -i "0 ifile '$INTRO'" list.txt

# concatenate to $1

ffmpeg -f concat -i list.txt $1