this repo has no description
vid2gif: make more robust
- Add better option handling
- Add option to start gif at a specific timestamp of the video
- Add option to determine how long the gif will be
+61
-15
+3
-3
flake.lock
+3
-3
flake.lock
···
2
2
"nodes": {
3
3
"nixpkgs": {
4
4
"locked": {
5
-
"lastModified": 1770841267,
6
-
"narHash": "sha256-9xejG0KoqsoKEGp2kVbXRlEYtFFcDTHjidiuX8hGO44=",
5
+
"lastModified": 1771369470,
6
+
"narHash": "sha256-0NBlEBKkN3lufyvFegY4TYv5mCNHbi5OmBDrzihbBMQ=",
7
7
"owner": "NixOS",
8
8
"repo": "nixpkgs",
9
-
"rev": "ec7c70d12ce2fc37cb92aff673dcdca89d187bae",
9
+
"rev": "0182a361324364ae3f436a63005877674cf45efb",
10
10
"type": "github"
11
11
},
12
12
"original": {
+58
-12
scritps/vid2gif
+58
-12
scritps/vid2gif
···
1
1
#!/bin/sh
2
-
scale=${3:-1}
3
-
filters="scale=iw*${scale}:-1:flags=lanczos"
4
-
palette_file=$(mktemp --tmpdir XXX.png)
2
+
usage() {
3
+
printf '%b\n' "${0##*/} -i <file> [OPTIONS]" \
4
+
"\noptions:" \
5
+
"\t-S TIMESTAMP - timestamp to start the gif" \
6
+
"\t-d SECONDS - how long the gif should be" \
7
+
"\t-o FILE - output file (default: out.gif)" \
8
+
"\t-s SCALE - border size (default: 1)"
9
+
}
10
+
11
+
while [ "$*" ]
12
+
do
13
+
case $1 in
14
+
- ) shift; continue ;;
15
+
-- ) shift; break ;;
16
+
-* ) flag=${1#-}; shift ;;
17
+
* ) shift; continue ;;
18
+
esac
5
19
6
-
[ -z "$1" ] && {
7
-
printf '%s\n' "${0##*/}: missing input video"
8
-
exit 1
9
-
}
20
+
while [ "$flag" ]
21
+
do
22
+
arg=${flag%"${flag#?}"}
10
23
11
-
[ -z "$2" ] && {
12
-
printf '%s\n' "${0##*/}: missing output gif"
13
-
exit 1
24
+
case $arg in
25
+
h ) usage; exit 0 ;;
26
+
S ) VID2GIF_START=$1; shift ;;
27
+
d ) VID2GIF_DURATION=$1; shift ;;
28
+
i ) VID2GIF_INPUT_FILE=$1; shift ;;
29
+
s ) VID2GIF_SCALE=$1; shift ;;
30
+
* ) printf '%s\n' "${0##*/}: -$arg: invalid argument" 1>&2
31
+
usage 1>&2; exit 1 ;;
32
+
esac
33
+
34
+
flag=${flag#?}
35
+
done
36
+
done
37
+
38
+
[ -z "$VID2GIF_INPUT_FILE" ] && {
39
+
printf '%s\n' "${0##*/}: missing input video" 1>&2
40
+
usage 1>&2; exit 1
14
41
}
15
42
16
-
ffmpeg -hide_banner -loglevel warning -i "$1" -vf "$filters,palettegen" -update true -y "$palette_file"
17
-
ffmpeg -hide_banner -loglevel warning -i "$1" -i "$palette_file" -filter_complex "$filters,paletteuse" "$2"
43
+
start=
44
+
duration=
45
+
[ -n "$VID2GIF_START" ] && start="-ss"
46
+
[ -n "$VID2GIF_DURATION" ] && duration="-t"
47
+
48
+
: "${VID2GIF_SCALE:=1}"
49
+
: "${VID2GIF_OUTPUT_FILE:=out.gif}"
50
+
51
+
filters="scale=iw*${VID2GIF_SCALE}:-1:flags=lanczos"
52
+
palette_file=$(mktemp --tmpdir XXX.png)
53
+
54
+
ffmpeg -hide_banner -loglevel warning \
55
+
"$start" "$VID2GIF_START" \
56
+
"$duration" "$VID2GIF_DURATION" \
57
+
-i "$VID2GIF_INPUT_FILE" -vf "$filters,palettegen" -update true \
58
+
-y "$palette_file"
59
+
ffmpeg -hide_banner -loglevel warning \
60
+
"$start" "$VID2GIF_START" \
61
+
"$duration" "$VID2GIF_DURATION" \
62
+
-i "$VID2GIF_INPUT_FILE" -i "$palette_file" -filter_complex "$filters,paletteuse" \
63
+
"$VID2GIF_OUTPUT_FILE"
18
64
19
65
rm "$palette_file"