Skip to content

Instantly share code, notes, and snippets.

@rock3r
Last active January 14, 2022 09:00
Show Gist options
  • Save rock3r/a923a79e8d8a850911aa to your computer and use it in GitHub Desktop.
Save rock3r/a923a79e8d8a850911aa to your computer and use it in GitHub Desktop.
Giffify - easily create optimised GIFs from a video
#!/usr/bin/python
# License for any modification to the original (linked below):
# ----------------------------------------------------------------------------
# "THE BEER-WARE LICENSE" (Revision 42):
# Sebastiano Poggi and Daniele Conti wrote this file. As long as you retain
# this notice you can do whatever you want with this stuff. If we meet some day,
# and you think this stuff is worth it, you can buy us a beer in return.
import argparse, sys, subprocess, tempfile
from os.path import splitext
from distutils.spawn import find_executable
def look_for_ffmpeg_or_abort():
ffmpeg_path = find_executable('ffmpeg')
if ffmpeg_path == None:
print "** ComputerSaysNoError **"
print "You need to have ffmpeg installed on your system and on the path for Giffify to work"
exit(1)
def parse_cli_arguments():
parser = argparse.ArgumentParser(description='Processes a video into a gif.')
parser.add_argument('video', type=str, help='The video to be processed')
parser.add_argument('-r', '--rotate', dest='rotate', action='store_true', help='Rotate output 270 degrees clockwise (useful for Genymotion)')
parser.add_argument('-o', '--outfile', type=str, help='Target path')
parser.add_argument('-dw', '--desired-width', type=int, default=-1)
parser.add_argument('-dh', '--desired-height', type=int, default=-1)
parser.add_argument('-fps', type=int, default=15, help='Output frames per second. Default: 15 fps')
parser.add_argument('-s', '--start-time', type=int, default=-1, help='Start timestamp, as [-][HH:]MM:SS[.m...] or [-]S+[.m...]')
parser.add_argument('-e', '--end-time', type=int, default=-1, help='End timestamp, as [-][HH:]MM:SS[.m...] or [-]S+[.m...]. Overridden by -d')
parser.add_argument('-d', '--duration', type=int, default=-1, help='Duration, as [-][HH:]MM:SS[.m...] or [-]S+[.m...]. Overrides -e')
return parser.parse_args()
def gif_path(path):
return splitext(path)[0] + '.gif'
def get_palette_path():
try:
palette_file = tempfile.NamedTemporaryFile()
return palette_file.name + '.png'
finally:
palette_file.close()
def insert_before_output_path(args, elements):
index = args.index('-y')
return args[:index] + elements + args[index:]
look_for_ffmpeg_or_abort()
args = parse_cli_arguments()
input_path = args.video
output_path = gif_path(input_path) if args.outfile is None else args.outfile
fps = args.fps
dw = args.desired_width
dh = args.desired_height
s = args.start_time
e = args.end_time
d = args.duration
if args.rotate:
rotate_filters = "transpose=2,"
else:
rotate_filters = ""
filters = "fps={fps},scale={dw}:{dh}:flags=lanczos".format(fps = fps, dw = dw, dh = dh)
output_filters = "{rotate}{filters} [x]; [x][1:v] paletteuse".format(filters = filters, rotate = rotate_filters)
palette_filters = "{rotate}{filters},palettegen".format(filters = filters, rotate = rotate_filters)
palette_path = get_palette_path()
ffmpeg_args_palette = ['ffmpeg',
'-v', 'warning',
'-i', input_path,
'-vf', palette_filters,
'-y', palette_path]
ffmpeg_args_gif = ['ffmpeg',
'-v', 'warning',
'-i', input_path,
'-i', palette_path,
'-lavfi', output_filters,
'-y', output_path]
if s != -1:
ffmpeg_args_gif = insert_before_output_path(ffmpeg_args_gif, ["-ss", str(s)])
if e != -1:
ffmpeg_args_gif = insert_before_output_path(ffmpeg_args_gif, ["-to", str(e)])
if d != -1:
ffmpeg_args_gif = insert_before_output_path(ffmpeg_args_gif, ["-t", str(d)])
print "First pass: extracting colour palette, hang tight..."
subprocess.call(ffmpeg_args_palette)
print "Second pass: converting that nice video into a sweet, high quality gif..."
subprocess.call(ffmpeg_args_gif)
print "Done! Now go and show off to your friends and colleagues"
#!/bin/bash
# License for any modification to the original (linked below):
# ----------------------------------------------------------------------------
# "THE BEER-WARE LICENSE" (Revision 42):
# Sebastiano Poggi and Daniele Conti wrote this file. As long as you retain
# this notice you can do whatever you want with this stuff. If we meet some day,
# and you think this stuff is worth it, you can buy us a beer in return.
if ! which "ffmpeg" > /dev/null 2>&1; then
echo "You need ffmpeg in your path to run giffify" >&2
exit 1
fi
show_usage() {
echo "Usage:"
echo ""
echo "giffify -i input_path.mp4 -o output_path.gif [-w width] [-y height] [-f fps=15] [-h shows this message]"
}
input_path=""
output_path=""
dw=-1
dh=-1
fps=15
while getopts ":i:o:w:y:f:h" opt; do
case $opt in
i )
input_path=$OPTARG
;;
o )
output_path=$OPTARG
;;
w )
dw=$OPTARG
;;
y )
dh=$OPTARG
;;
f )
fps=$OPTARG
;;
h )
show_usage
exit 0
;;
\? )
echo "Argument $OPTARG not recognized." >&2
exit 1
;;
: )
echo "Option -$OPTARG requires an argument." >&2
exit 1
;;
esac
done
if [[ -z "$input_path" ]]; then
echo "You must specify an input file to process"
echo ""
show_usage
exit 1
fi
if [[ -z "$output_path" ]]; then
output_path="$input_path.gif"
fi
palette="palette.png"
filters="fps=$fps,scale=$dw:$dh:flags=lanczos"
ffmpeg -v warning -i $input_path -vf "$filters,palettegen" -y $palette
if [[ -f $palette ]]; then
ffmpeg -v warning -i $input_path -i $palette -lavfi "$filters [x]; [x][1:v] paletteuse" -y $output_path
rm $palette
fi
@rock3r
Copy link
Author

rock3r commented Oct 10, 2016

New on 10/10/16:

  • Added -r flag to rotate videos by 270 degrees to compensate for Genymotion over-rotating (thanks @ataulm)

@rock3r
Copy link
Author

rock3r commented Oct 10, 2016

⚠️ IMPORTANT NOTICE ⚠️

Starting now, the code has been moved here: https://github.com/rock3r/giffify

This gist is deprecated. All further updates will happen on the main repo.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment