Get progress information for an ffmpeg process.
Project description
ffmpeg-progress
This script is based on the work of Rupert Plumridge.
Basic use
import subprocess as sp
import sys
from ffmpeg_progress import start
def ffmpeg_callback(infile: str, outfile: str, vstats_path: str):
return sp.Popen(['ffmpeg',
'-nostats',
'-loglevel', '0',
'-y',
'-vstats_file', vstats_path,
'-i', infile,
outfile]).pid
def on_message_handler(percent: float,
fr_cnt: int,
total_frames: int,
elapsed: float):
sys.stdout.write('\r{:.2f}%'.format(percent))
sys.stdout.flush()
start('my input file.mov',
'some output file.mp4',
ffmpeg_callback,
on_message=on_message_handler,
on_done=lambda: print(''),
wait_time=1) # seconds
start()
is the main function to use. If on_message
is not passed, a default function is used. The on_done
argument is optional. The initial_wait_time
keyword argument can be used to specify a time to wait before processing the log.
The ffmpeg callback must return a PID (int
). It is recommended to pass -nostats -loglevel 0
to your ffmpeg process. The ffmpeg callback also must pass -vstats_file
given the path from the callback argument.
ffprobe
An ffprobe front-end function is included. Usage:
from ffmpeg_progress import ffprobe
ffprobe('my file.mp4') # returns a dict()
Project details
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