mrtoth/coub-dl
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refactored some parts of code

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This commit is contained in:
Kjistóf 2017-02-04 22:16:55 +01:00
parent 6c5169573d
commit 0543e295ff
1 changed files with 42 additions and 30 deletions
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72
coub-dl.py
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@ -10,18 +10,6 @@ from functools import wraps
# parse arguments
parser = ArgumentParser(description='Download player-looped videos with youtube-dl & ffmpeg.')
parser.add_argument('-nv', '--nonverbose', action='store_true', help='Turn off non-critical messages to user.')
parser.add_argument('-o', '--output', default=None, help='Specify name of the output file (use -e for extension).')
parser.add_argument('-e', '--extension', default='mp4', help='Set the container to use for the output.')
parser.add_argument('url', type=str, help='The URL of the site containing the video to download.')
args = parser.parse_args()
args.extension = '.' + args.extension
VERBOSE = False if args.nonverbose else True
class Stream(Enum):
AUDIO = 1
VIDEO = 2
@ -32,6 +20,7 @@ class File(Enum):
FRACTION = 3
OUTPUT = 4
def call_verbose(before_message='', after_message='Done!'):
def tag(f):
@wraps(f)
@ -42,15 +31,18 @@ def call_verbose(before_message='', after_message='Done!'):
return wrapper
return tag
def print_opt(*args, **kwargs):
if VERBOSE:
print(*args, **kwargs)
def getCmdStdErr(command):
process = Popen(command, stderr=PIPE, stdout=PIPE)
out, err = process.communicate()
return err
def getDuration(ffprobe_output):
durationPattern = r'.*Duration:\s(.+),\sstart.*'
regex = match(durationPattern, str(ffprobe_output))
@ -59,6 +51,7 @@ def getDuration(ffprobe_output):
raise ValueError('Cannot process ffprobe output!')
return duration
@call_verbose(before_message='Downloading audio stream... ')
def download_audio_stream():
call(('youtube-dl', '--ignore-config',
@ -67,6 +60,7 @@ def download_audio_stream():
URL),
stdout=DEVNULL, stderr=DEVNULL)
@call_verbose(before_message='Downloading video stream... ')
def download_video_stream():
call(('youtube-dl', '--ignore-config',
@ -74,12 +68,33 @@ def download_video_stream():
URL),
stdout=DEVNULL, stderr=DEVNULL)
def readExtensions():
for file in listdir():
for filename in FILES:
if match('^{}.*'.format(FILES[filename]), file):
FILES[filename] = file
@call_verbose(before_message='Looping shorter stream... ')
def loop_shorter_stream():
call(('ffmpeg', '-f', 'concat', '-i', FILES[File.LIST],
'-c', 'copy', FILES[File.LOOP]),
stdout=DEVNULL, stderr=DEVNULL)
call(('ffmpeg', '-i', shorterFile, '-t', str(timesLoop_fraction * shorter.total_seconds()), FILES[File.FRACTION]),
stdout=DEVNULL, stderr=DEVNULL)
@call_verbose(before_message='Muxing streams... ')
def mux_streams():
call(('ffmpeg', '-i', FILES[File.LOOP],
'-i', FILES[Stream.AUDIO],
'-map', '0:v:0', '-map', '1:a:0',
'-c', 'copy', FILES[File.OUTPUT]),
stdout=DEVNULL, stderr=DEVNULL)
def yes_no_question(question, default):
valid = {"yes": True, "y": True, "ye": True,
"no": False, "n": False}
@ -103,6 +118,19 @@ def yes_no_question(question, default):
print("Please respond with 'yes'(y) or 'no'(n)!")
# parse arguments
parser = ArgumentParser(description='Download player-looped videos with youtube-dl & ffmpeg.')
parser.add_argument('-nv', '--nonverbose', action='store_true', help='Turn off non-critical messages to user.')
parser.add_argument('-o', '--output', default=None, help='Specify name of the output file (use -e for extension).')
parser.add_argument('-e', '--extension', default='mp4', help='Set the container to use for the output.')
parser.add_argument('url', type=str, help='The URL of the site containing the video to download.')
args = parser.parse_args()
args.extension = '.' + args.extension
VERBOSE = False if args.nonverbose else True
FILES = {Stream.AUDIO: 'audio', Stream.VIDEO: 'video',
File.LIST: 'list.txt', File.LOOP: 'loop', File.FRACTION: 'fraction',
File.OUTPUT: 'output'+args.extension}
@ -155,24 +183,8 @@ with open(FILES[File.LIST], 'w') as f:
print("file '{}'".format(shorterFile), file=f)
print("file '{}'".format(FILES[File.FRACTION]), file=f)
# Cut last loop accurrate
call(('ffmpeg', '-i', shorterFile, '-t', str(timesLoop_fraction*shorter.total_seconds()), FILES[File.FRACTION]),
stdout=DEVNULL, stderr=DEVNULL)
# loop shorter stream
print_opt('Looping shorter stream... ', end='', flush=True)
call(('ffmpeg', '-f', 'concat', '-i', FILES[File.LIST], '-c', 'copy', FILES[File.LOOP]),
stdout=DEVNULL, stderr=DEVNULL)
print_opt('Done!')
# mux with audio
print_opt('Muxing streams... ', end='', flush=True)
call(('ffmpeg', '-i', FILES[File.LOOP],
'-i', FILES[Stream.AUDIO],
'-map', '0:v:0', '-map', '1:a:0',
'-c', 'copy', FILES[File.OUTPUT]),
stdout=DEVNULL, stderr=DEVNULL)
print_opt('Done!')
loop_shorter_stream()
mux_streams()
# cleanup
for key in FILES: