diff options
Diffstat (limited to '.config/init/funcs/make-gif')
| -rwxr-xr-x | .config/init/funcs/make-gif | 97 |
1 files changed, 66 insertions, 31 deletions
diff --git a/.config/init/funcs/make-gif b/.config/init/funcs/make-gif index 1864e63..597f799 100755 --- a/.config/init/funcs/make-gif +++ b/.config/init/funcs/make-gif @@ -4,8 +4,12 @@ local callstr="$0" local hasgsic=$(whence gifsicle) +print_error() { + echo -e "\e[1;31merror:\e[0m $1\n" +} + usage() { - [[ "$1" != "" ]] && echo -e "\e[1;31merror:\e[0m $1\n" + [[ "$1" != "" ]] && print_error $1 echo "Usage: $callstr [OPTIONS...] <infile> <outfile>" echo "" echo " description option default val" @@ -20,6 +24,20 @@ usage() { exit 1 } +# preface used to ensure unique inputs, just in case links exist. see below +local tmp_pref + +rm_tmps() { + rm -f ${tmp_pref}-palette.png + rm -f ${tmp_pref}-in +} + +abort() { + [[ "$1" != "" ]] && print_error $1 + rm_tmps + exit 1 +} + local start="00:00:00" local length="" local fps=10 @@ -33,10 +51,10 @@ local numpat='^[1-9][0-9]*(\.[0-9]+){0,1}$' local intpat='^[1-9][0-9]*$' local zintpat='^[0-9]+$' -# tmp var used to old '-t' if length is used +# tmp var used to hold '-t' if length is used local t="" -# really annoying, but no other good way to do this +# really annoying, but no other good way to do optional args if [[ $hasgsic ]]; then while getopts :s:t:f:w:bhn:g opt; do case "$opt" in @@ -109,57 +127,74 @@ else fi shift $OPTIND-1 +# check some error conditions [[ ${#@} -gt 2 ]] && usage "trailing arguments detected" [[ ${#@} -lt 2 ]] && usage "no output file specified" [[ "${2:e}" != "gif" ]] && usage "output file must have a .gif file extension" -[[ ! -f "$1" ]] && usage "input file not found" +[[ "$1" != "%d.png" ]] && [[ ! -f "$1" ]] && usage "input file not found" -local paltmp="make-gif" -while [[ -f "${paltmp}-palette.png" ]] || [[ -f "${paltmp}-in" ]]; do - paltmp="${paltmp}-1" +# make links +tmp_pref="make-gif" +tmp_pref="${2:h}/$tmp_pref" + +echo $tmp_pref + +while [[ -f "${tmp_pref}-palette.png" ]] || [[ -f "${tmp_pref}-in" ]]; do + tmp_pref="${tmp_pref}-1" done -ln -s "$1" "${paltmp}-in" +ln -s "$1" "${tmp_pref}-in" \ + || abort "could not write to output dir" -local fferr +# get output height using aspect ratio +local height +local as +height=-1 +ffprobe -loglevel -8 -print_format json -show_streams "${tmp_pref}-in" \ + | grep -m 1 display_aspect_ratio | grep -Eo '[0-9]+:[0-9]+' \ + | IFS=':' read -A as +[[ "$as" != "" ]] && let "height = ${width} * ${as[2]} / ${as[1]}" + +# convert if [[ $subs ]]; then echo "pass 1..." ffmpeg -loglevel 16 -y -ss $start $t $length -i "$1" -copyts \ - -vf "subtitles=${paltmp}-in:si=$strack,fps=$fps,scale=$width:-1:flags=lanczos,palettegen" \ - ${paltmp}-palette.png + -vf "subtitles=${tmp_pref}-in:si=$strack,setsar=1/1,fps=$fps,scale=${width}:${height}:flags=lanczos,palettegen" \ + ${tmp_pref}-palette.png [[ $? -ne 0 ]] && fferr=true [[ ! $fferr ]] && echo "pass 2..." && ffmpeg -loglevel 24 \ - -ss $start $t $length -i "$1" -i ${paltmp}-palette.png \ + -ss $start $t $length -i "$1" -i ${tmp_pref}-palette.png \ -copyts -filter_complex \ - "subtitles=${paltmp}-in:si=$strack,fps=$fps,scale=$width:-1:flags=lanczos[x];[x][1:v]paletteuse" \ - "$2" + "subtitles=${tmp_pref}-in:si=$strack,setsar=1/1,fps=$fps,scale=${width}:${height}:flags=lanczos[x];[x][1:v]paletteuse" \ + "$2" || abort + [[ $? -ne 0 ]] && fferr=true else echo "pass 1..." ffmpeg -loglevel 16 -y -ss "$start" $t $length -i "$1" \ - -vf "fps=$fps,scale=$width:-1:flags=lanczos,palettegen" \ - ${paltmp}-palette.png + -vf "setsar=1/1,fps=$fps,scale=${width}:${height}:flags=lanczos,palettegen" \ + ${tmp_pref}-palette.png [[ $? -ne 0 ]] && fferr=true [[ ! $fferr ]] && echo "pass 2..." && ffmpeg -loglevel 24 \ - -ss $start $t $length -i "$1" -i ${paltmp}-palette.png -filter_complex \ - "fps=$fps,scale=$width:-1:flags=lanczos[x];[x][1:v]paletteuse" \ + -ss $start $t $length -i "$1" -i ${tmp_pref}-palette.png -filter_complex \ + "setsar=1/1,fps=$fps,scale=${width}:${height}:flags=lanczos[x];[x][1:v]paletteuse" \ "$2" + [[ $? -ne 0 ]] && fferr=true fi -rm -f ${paltmp}-palette.png -rm -f ${paltmp}-in - -if [[ -f "$2" ]] && [[ ! $fferr ]]; then - if [[ $gsic ]]; then - local gsictmp="$2.out" - while [[ -f "$gsictmp" ]]; do - gsictmp="$gsictmp.out" - done - echo "optimising..." - gifsicle -O3 -i "$2" -o "$gsictmp" - [[ $? -eq 0 ]] && rm -f "$2" && mv "$gsictmp" "$2" - fi +[[ $fferr ]] && abort +rm_tmps + +# gifsicle +if [[ -f "$2" && $gsic ]]; then + local gsictmp="$2.out" + while [[ -f "$gsictmp" ]]; do + gsictmp="$gsictmp.out" + done + echo "optimising..." + gifsicle -O3 -i "$2" -o "$gsictmp" + [[ $? -eq 0 ]] && rm -f "$2" && mv "$gsictmp" "$2" fi |