scripts/tools/creategif.py

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Python
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2019-04-22 13:44:14 +03:00
#!/usr/bin/python3
"""
creategif.py to create awful gif animations from videos! :D
-h help
-i [--input] input file
-o [--output] output file
-v [--verbose] verbose level. Set it as "verbose"
-s [--size] size of the video. Give the size of the longest dimension (default: 320)
-d [--delay] delay in ms for each frame for the generated gif (default: 5)
-r [--rate] the rate in which frames are extracted (default: 10 fps)
"""
import getopt
import sys
import subprocess
from subprocess import call
import lib.helpers as helpers
__author__ = 'lanxu <jukka.lankinen@gmail.com>'
def main(argv):
ffmpeg_available = helpers.is_exe("/usr/bin/ffmpeg")
convert_available = helpers.is_exe("/usr/bin/convert")
input_file = ''
output_file = ''
loglevel = 'error'
size = '320'
delay = '5'
rate = '10'
try:
opts, args = getopt.getopt(argv,"hi:o:v:s:d:r:", ["input=","output=","verbose=", "size=", "delay=", "rate="])
except getopt.GetoptError:
print('creategif.py -i <inputfile> -o <outputfile>')
sys.exit(1)
for opt, arg in opts:
if opt == '-h':
print('creategif.py -i <inputfile> -o <outputfile> [-v]')
sys.exit()
elif opt in ("-v", "--verbose"):
loglevel = 'verbose'
elif opt in ("-i", "--input"):
input_file = arg
elif opt in ("-o", "--output"):
output_file = arg
elif opt in ("-s", "--size"):
size = arg
elif opt in ("-d", "--delay"):
delay = arg
elif opt in ("-r", "--rate"):
rate = arg
if not ffmpeg_available or not convert_available:
print('ffmpeg or convert not installed')
sys.exit(1)
if output_file == "" or input_file == "":
print('provide input and output files')
sys.exit(1)
if loglevel != "error":
print('Input file is "'+input_file+'"')
print('Output file is "'+output_file+'"')
try:
command_ffmpeg = ['ffmpeg', '-i', input_file,
'-loglevel', loglevel,
'-vf', 'scale='+size+':-1',
'-r', rate,
'-f', 'image2pipe',
'-vcodec', 'ppm',
'-']
command_convert = ['convert',
'-delay', delay,
'-loop', '0',
'-layers', 'Optimize',
'-matte', '+dither',
'-alpha', 'remove',
'-depth', '8',
'-', output_file]
ps = subprocess.Popen(command_ffmpeg, stdout=subprocess.PIPE)
val = call(command_convert, stdin=ps.stdout)
# ffmpeg returns 0 if success
if val > 0:
print('Encoding failed!')
sys.exit(2)
except:
print('Encoding failed!')
sys.exit(2)
if loglevel != "error":
print('Done.')
if __name__ == "__main__":
main(sys.argv[1:])