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deep-fryer.py
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deep-fryer.py
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import os
import random
import ffmpy
import argparse
from collections import OrderedDict
from shutil import copyfile, rmtree
from utils import line_break, make_random_value, get_total_seconds, get_dimensions
TMP_FOLDER = './tmp'
if not os.path.exists(TMP_FOLDER):
os.makedirs(TMP_FOLDER)
def create_base_args():
return [
'-y', # overwrite existing
'-vb', '2M', # shitty bit rate to create compression effect
] + create_audio_args()
def increase_audio(input_audio, amt):
output_args = ['-y', '-af', 'volume=3, bass=g=5, treble=g=-10']
audio_file = None
for idx in xrange(0, amt):
input_file = audio_file or input_audio
output = '{}/tmp_audio_{}.wav'.format(TMP_FOLDER, idx)
ff = ffmpy.FFmpeg(inputs={input_file: None}, outputs={output: output_args})
try:
ff.run()
audio_file = output
except Exception as e:
line_break(3)
print('Failed to increase audio.\n{}'.format(e))
return audio_file
def extract_audio(input_file):
output_args = ['-y', '-vn', '-acodec', 'copy']
output = '{}/input_audio.aac'.format(TMP_FOLDER)
ff = ffmpy.FFmpeg(inputs={input_file: None}, outputs={output: output_args})
try:
ff.run()
except Exception as e:
line_break(3)
print('Failed to increase audio.\n{}'.format(e))
return output
def create_audio_args():
return ['-af', 'bass=g=8, treble=g=-2, volume=10dB']
def create_filter_args():
"""
Create randomized "deep fried" visual filters
returns command line args for ffmpeg's filter flag -vf
"""
saturation = make_random_value([2, 3])
contrast = make_random_value([1.5, 2])
noise = make_random_value([30, 60])
gamma_r = make_random_value([1, 3])
gamma_g = make_random_value([1, 3])
gamma_b = make_random_value([1, 3])
eq_str = 'eq=saturation={}:contrast={}'.format(saturation, contrast)
eq_str += ':gamma_r={}:gamma_g={}:gamma_b={}'.format(gamma_r, gamma_g, gamma_b)
noise_str = 'noise=alls={}:allf=t'.format(noise)
sharpness_str = 'unsharp=5:5:1.25:5:5:1'
return ['-vf', ','.join([eq_str, noise_str, sharpness_str])]
def get_random_emoji():
"""
Return a random emoji file from './emoji'. To avoid errors when using the
same file more than once, each file is given a random name and copied into './tmp'
"""
emoji_choices = filter(lambda x: not x.startswith('.'), os.listdir('./emoji'))
rand_choice = random.choice(emoji_choices)
new_name = str(random.randint(0, 99999999)) + '.png'
new_dest = '{}/{}'.format(TMP_FOLDER, new_name)
copyfile('./emoji/{}'.format(rand_choice), new_dest)
return new_dest
def get_random_emojis(amt):
"""
Create emoji inputs, returning an OrderedDict where each key is the emoji
comp name and the value includes size and filter str. eg:
[emoji_4]: {
filter_str: [4:v]scale=30:30,rotate=12*PI/180:c=none[emoji_4],
size: 30,
}
"""
emojis = OrderedDict({})
for idx in xrange(1, amt + 1):
size = random.randint(50, 200)
rotation = random.randint(-180, 180)
input_comp = '{}:v'.format(idx)
output_comp = 'emoji_{}'.format(idx)
transform = 'scale={}:{},rotate={}*PI/180:c=none'.format(size, size, rotation)
filter_str = '[{}]{}[{}]'.format(input_comp, transform, output_comp)
emojis[output_comp] = {'size': size, 'filter_str': filter_str}
return emojis
def create_emoji_filters(input_file):
comp_name = '0:v'
seconds = get_total_seconds(input_file)
width, height = get_dimensions(input_file)
emoji_filters = []
emoji_amt = make_random_value([0.75, 0.95])
random_emojis = get_random_emojis(int(seconds * emoji_amt))
emoji_keys = random_emojis.keys()
for idx, emoji in enumerate(emoji_keys):
size = random_emojis[emoji]['size']
filter_str = random_emojis[emoji]['filter_str']
max_x = width - size
max_y = height - size
pos_x = make_random_value([0, max_x])
pos_y = make_random_value([0, max_y])
dur = make_random_value([2, 5])
max_start = seconds - dur
start = make_random_value([0, max_start])
end = start + dur
new_comp = 'comp_{}'.format(idx)
overlay = "overlay={}:{}:enable='between(t, {}, {})'".format(pos_x, pos_y, start, end)
emoji_filter = ';'.join([filter_str, '[{}][{}]{}'.format(comp_name, emoji, overlay)])
if idx < (len(emoji_keys) - 1):
emoji_filter += '[{}];'.format(new_comp)
comp_name = new_comp
emoji_filters.append(emoji_filter)
return emoji_filters
def create_inputs(input_file, emoji_filters=[]):
"""
Special input creator with optional emoji_filters argument
that adds emoji input for every emoji filter passed
"""
inputs = [(input_file, None)]
# add an actual emoji file input for every filter created
for _ in emoji_filters:
inputs.append((get_random_emoji(), None))
return OrderedDict(inputs)
def create_outputs(output_file, output_args):
return OrderedDict([(output_file, output_args)])
def add_random_emojis(input_file):
"""
Overlays emojis at random angles, size, durations, and start frames over a
given input file. The amount of emojis is based on input file length.
"""
emoji_filters = create_emoji_filters(input_file)
inputs = create_inputs(input_file, emoji_filters)
output_args = ['-an'] + create_base_args()
output_args += ['-filter_complex', ''.join(emoji_filters)]
tmp_output = '{}/emojied_video.mp4'.format(TMP_FOLDER)
outputs = create_outputs(tmp_output, output_args)
ff = ffmpy.FFmpeg(inputs=inputs, outputs=outputs)
try:
ff.run()
return tmp_output
except Exception as e:
line_break(3)
print('Failed to add emojis.\n{}'.format(e))
def create_final_video(fried_video, boosted_audio, output_file):
inputs = OrderedDict([
(fried_video, None),
(boosted_audio, None),
])
outputs = OrderedDict([
(output_file, ['-y', '-vcodec', 'libx264']),
])
ff = ffmpy.FFmpeg(inputs=inputs, outputs=outputs)
try:
ff.run()
line_break(3)
print('Succesfully deep fried video at {}!'.format(output_file))
line_break(3)
return output_file
except Exception as e:
line_break(3)
print('Failed to create final video.\n{}'.format(e))
def deep_fry_video(input_file, video_dip):
emojified_video = add_random_emojis(input_file)
inputs = create_inputs(emojified_video)
output_args = create_base_args() + create_filter_args()
for idx in xrange(0, video_dip):
output = '{}/deep_fried_{}.mp4'.format(TMP_FOLDER, idx)
outputs = create_outputs(output, output_args)
ff = ffmpy.FFmpeg(inputs=inputs, outputs=outputs)
try:
ff.run()
inputs = create_inputs(output)
except Exception as e:
line_break(3)
print('Failed to deep fry video.\n{}'.format(e))
return output
def main(input_file, output_file, video_dip, audio_dip):
extracted_audio = extract_audio(input_file)
boosted_audio = increase_audio(extracted_audio, audio_dip)
fried_video = deep_fry_video(input_file, video_dip)
create_final_video(fried_video, boosted_audio, output_file)
rmtree(TMP_FOLDER)
if __name__ == '__main__':
ap = argparse.ArgumentParser()
ap.add_argument('-i', '--input_file', help='input file')
ap.add_argument('-o', '--output_file', help='output file')
ap.add_argument('-vd', '--video_dip', help='amount of times to run video through filter', default=3, type=int)
ap.add_argument('-ad', '--audio_dip', help='amount of times to run audio through filter', default=10, type=int)
args = ap.parse_args()
assert args.input_file is not None, 'No input file provided...'
assert args.output_file is not None, 'No output file provided...'
main(args.input_file, args.output_file, args.video_dip, args.audio_dip)