split movies longer than 180 seconds for flickr upload.

splitmoview.py

#!/bin/env python3

# run like this: `find ~/Desktop/exporting/*.{mp4,mov} | python3 ~/bin/splitmovies.py`

import fileinput
import subprocess
import math

SPLIT_SECONDS = 180


def movie_length(filename: str) -> float:
    p = subprocess.run(["ffprobe", "-v", "error", "-show_entries", "format=duration", "-of", "default=noprint_wrappers=1:nokey=1", filename], stdout=subprocess.PIPE)
    print (p)
    out = p.stdout
    s = out.decode('utf-8').strip()
    return float(s)

movies = [f.strip() for f in fileinput.input()]
print (movies)

large_movies = [m for m in movies if movie_length(m) > SPLIT_SECONDS ]
print (large_movies)

for f in large_movies:
    print(f)
    fsp = f.split('.')
    ext = fsp[-1]
    fnbody = '.'.join(fsp[:-1])
    subprocess.run(["ffmpeg","-i", f, "-c", "copy", "-map", "0", "-segment_time", "180", "-f", "segment", "-reset_timestamps", "1", "%s.%%03d.%s" % (fnbody, ext)])