ffmpeg break up videos with frame persecond - python-3.x

Question

Theres a command to extract images of a video providing frame per seconds
ffmpeg -i "vide.mp4" -vf fps=1 frames/frame_%04d.png -hide_banner
Is there a command in ffmpeg to cut video providing fps and save it as video(.mp4 / avi) file like the command above?
What i currently have is i created a method to cut the videos with start and endtime but i firstly created a method to get the length of a video so that i could cut the video base on how many frames that was generated by the above command.
def get_length(self):
"""
Gets the length of a video in seconds
Returns:
float : Length of the video
"""
print("Getting video length: " + self.video_string_path)
command = 'ffprobe -i "'+self.video_string_path+'" -show_entries format=duration -v quiet -of csv="p=0"'
self.command = command
length = str(cmd.execute(command)).strip()
print("lenght: "+length+" second(s)")
return float(length)
def cut(self, start_time, duration, output_file_name = 'output_file_name.mp4', save_to =''):
"""
Cut a video on a specific start time of the video and duration.
Check ffmpeg documentation https://ffmpeg.org/ffmpeg.html for more information about the parameters
Parameters:
start_time : string
is the value of ffmpeg -ss with the format: 00:00:00.000
duration : string | int | float
is the end point where the video will be cut. Can be the same with start_time format but it could also handle integer as in seconds
output_file_name : string
is the file name once the file is save in the hardisk
save_to : string | optional
is the directory where the file will be saved
Returns:
string: file location of the cutted video
"""
self.make_sure_save_dir_exits(save_to)
print('Cutting ' + self.video_string_path + ' from ' + start_time + ' to ' + str(duration))
print('Please wait...')
file = '"' + self.save_to + output_file_name + '"'
command = 'ffmpeg -i "' + self.video_string_path + '" -ss ' + str(start_time) + ' -t ' + str(duration) + ' -c copy -y ' + file
self.command = command
cmd.execute(command)
file_loc = self.get_save_to_dir() + output_file_name
print('Done: Output file was saved to "' + file_loc + '"')
return file_loc + output_file_name

Answer 1

Use
ffmpeg -ss {start_time} -t {duration} -i "vide.mp4" -vf fps=X -c:a copy out.mp4
where X is your output framerate.
To segment the entire file,
ffmpeg -i "vide.mp4" -vf fps=X
-f segment -segment_time {duration} -force_key_frames expr:gte(t,n_forced*{duration})
-reset_timestamps 1 -segment_time_delta 1.0 -c:a copy out%d.mp4

Answer 2

Another way to break up video into smaller chunks is the following command.
ffmpeg -i somefile.mp3 -f segment -segment_time 3 -c copy out%03d.mp3
https://www.ffmpeg.org/ffmpeg-formats.html#segment_002c-stream_005fsegment_002c-ssegment