blob: 35bb6a759246f5d68daeba00fe7b1f20a0149d77 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
#!/bin/sh
# Give a file with images and timecodes and creates a video slideshow of them.
#
# Timecodes must be in format 00:00:00.
#
# Imagemagick and ffmpeg required.
# Application cache if not stated elsewhere.
cache="${XDG_CACHE_HOME:-${HOME}/.cache}/slider"
while getopts "hvrpi:c:a:o:d:f:t:e:x:s:" o; do case "${o}" in
c) bgc="$OPTARG" ;;
t) fgc="$OPTARG" ;;
f) font="$OPTARG" ;;
i) file="$OPTARG" ;;
a) audio="$OPTARG" ;;
o) outfile="$OPTARG" ;;
d) prepdir="$OPTARG" ;;
r) redo="$OPTARG" ;;
s) ppt="$OPTARG" ;;
e) endtime="$OPTARG" ;;
x)
res="$OPTARG"
echo "$res" | grep -qv "^[0-9]\+x[0-9]\+$" &&
echo "Resolution must be dimensions separated by a 'x': 1280x720, etc." &&
exit 1
;;
p)
echo "Purge old build files in $cache? [y/N]"
read -r confirm
echo "$confirm" | grep -iq "^y$" && rm -rf "$cache" && echo "Done."
exit
;;
v) verbose=True ;;
*) echo "$(basename "$0") usage:
-i input timecode list (required)
-a audio file
-c color of background (use html names, black is default)
-t text color for text slides (white is default)
-s text font size for text slides (150 is default)
-f text font for text slides (sans serif is default)
-o output video file
-e if no audio given, the time in seconds that the last slide will be shown (5 is default)
-x resolution (1920x1080 is default)
-d tmp directory
-r rerun imagemagick commands even if done previously (in case files or background has changed)
-p purge old build files instead of running
-v be verbose" && exit 1 ;;
esac done
# Check that the input file looks like it should.
{ head -n 1 "$file" 2>/dev/null | grep -q "^00:00:00 "; } || {
echo "Give an input file with -i." &&
echo "The file should look as this example:
00:00:00 first_image.jpg
00:00:03 otherdirectory/next_image.jpg
00:00:09 this_image_starts_at_9_seconds.jpg
etc...
Timecodes and filenames must be separated by Tabs." &&
exit 1
}
if [ -n "${audio+x}" ]; then
# Check that the audio file looks like an actual audio file.
case "$(file --dereference --brief --mime-type -- "$audio")" in
audio/*) ;;
*)
echo "That doesn't look like an audio file."
exit 1
;;
esac
totseconds="$(date '+%s' -d $(ffmpeg -i "$audio" 2>&1 | awk '/Duration/ {print $2}' | sed s/,//))"
fi
prepdir="${prepdir:-$cache/$file}"
outfile="${outfile:-$file.mp4}"
prepfile="$prepdir/$file.prep"
[ -n "${verbose+x}" ] && echo "Preparing images... May take a while depending on the number of files."
mkdir -p "$prepdir"
{
while read -r x; do
# Get the time from the first column.
time="${x%% *}"
seconds="$(date '+%s' -d "$time")"
# Duration is not used on the first looped item.
duration="$((seconds - prevseconds))"
# Get the filename/text content from the rest.
content="${x#* }"
base="$(basename "$content")"
base="${base%.*}.jpg"
if [ -f "$content" ]; then
# If images have already been made in a previous run, do not recreate
# them unless -r was given.
{ [ ! -f "$prepdir/$base" ] || [ -n "${redo+x}" ]; } &&
magick -size "${res:-1920x1080}" canvas:"${bgc:-black}" -gravity center "$content" -resize 1920x1080 -composite "$prepdir/$base"
else
{ [ ! -f "$prepdir/$base" ] || [ -n "${redo+x}" ]; } &&
magick -size "${res:-1920x1080}" -background "${bgc:-black}" -fill "${fgc:-white}" -font "${font:-Sans}" -pointsize "${ppt:-150}" -gravity center label:"$content" "$prepdir/$base"
fi
# If the first line, do not write yet.
[ "$time" = "00:00:00" ] || echo "file '$prevbase'
duration $duration"
# Keep the information required for the next file.
prevbase="$base"
prevtime="$time"
prevseconds="$(date '+%s' -d "$prevtime")"
done <"$file"
# Do last file which must be given twice as follows
endtime="$((totseconds - seconds))"
echo "file '$base'
duration ${endtime:-5}
file '$base'"
} >"$prepfile"
if [ -n "${audio+x}" ]; then
ffmpeg -hide_banner -y -f concat -safe 0 -i "$prepfile" -i "$audio" -c:a aac -vsync vfr -c:v libx264 -pix_fmt yuv420p "$outfile"
else
ffmpeg -hide_banner -y -f concat -safe 0 -i "$prepfile" -vsync vfr -c:v libx264 -pix_fmt yuv420p "$outfile"
fi
# Might also try:
# -vf "fps=${fps:-24},format=yuv420p" "$outfile"
# but has given some problems.
|
