mirror of
https://github.com/l1ving/youtube-dl
synced 2024-11-22 04:42:54 +08:00
512 lines
18 KiB
Python
512 lines
18 KiB
Python
import os
|
|
import subprocess
|
|
import sys
|
|
import time
|
|
|
|
|
|
from .utils import (
|
|
compat_subprocess_get_DEVNULL,
|
|
encodeFilename,
|
|
PostProcessingError,
|
|
shell_quote,
|
|
subtitles_filename,
|
|
)
|
|
|
|
|
|
class PostProcessor(object):
|
|
"""Post Processor class.
|
|
|
|
PostProcessor objects can be added to downloaders with their
|
|
add_post_processor() method. When the downloader has finished a
|
|
successful download, it will take its internal chain of PostProcessors
|
|
and start calling the run() method on each one of them, first with
|
|
an initial argument and then with the returned value of the previous
|
|
PostProcessor.
|
|
|
|
The chain will be stopped if one of them ever returns None or the end
|
|
of the chain is reached.
|
|
|
|
PostProcessor objects follow a "mutual registration" process similar
|
|
to InfoExtractor objects.
|
|
"""
|
|
|
|
_downloader = None
|
|
|
|
def __init__(self, downloader=None):
|
|
self._downloader = downloader
|
|
|
|
def set_downloader(self, downloader):
|
|
"""Sets the downloader for this PP."""
|
|
self._downloader = downloader
|
|
|
|
def run(self, information):
|
|
"""Run the PostProcessor.
|
|
|
|
The "information" argument is a dictionary like the ones
|
|
composed by InfoExtractors. The only difference is that this
|
|
one has an extra field called "filepath" that points to the
|
|
downloaded file.
|
|
|
|
This method returns a tuple, the first element of which describes
|
|
whether the original file should be kept (i.e. not deleted - None for
|
|
no preference), and the second of which is the updated information.
|
|
|
|
In addition, this method may raise a PostProcessingError
|
|
exception if post processing fails.
|
|
"""
|
|
return None, information # by default, keep file and do nothing
|
|
|
|
class FFmpegPostProcessorError(PostProcessingError):
|
|
pass
|
|
|
|
class AudioConversionError(PostProcessingError):
|
|
pass
|
|
|
|
class FFmpegPostProcessor(PostProcessor):
|
|
def __init__(self,downloader=None):
|
|
PostProcessor.__init__(self, downloader)
|
|
self._exes = self.detect_executables()
|
|
|
|
@staticmethod
|
|
def detect_executables():
|
|
def executable(exe):
|
|
try:
|
|
subprocess.Popen([exe, '-version'], stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
|
|
except OSError:
|
|
return False
|
|
return exe
|
|
programs = ['avprobe', 'avconv', 'ffmpeg', 'ffprobe']
|
|
return dict((program, executable(program)) for program in programs)
|
|
|
|
def run_ffmpeg_multiple_files(self, input_paths, out_path, opts):
|
|
if not self._exes['ffmpeg'] and not self._exes['avconv']:
|
|
raise FFmpegPostProcessorError(u'ffmpeg or avconv not found. Please install one.')
|
|
|
|
files_cmd = []
|
|
for path in input_paths:
|
|
files_cmd.extend(['-i', encodeFilename(path)])
|
|
cmd = ([self._exes['avconv'] or self._exes['ffmpeg'], '-y'] + files_cmd
|
|
+ opts +
|
|
[encodeFilename(self._ffmpeg_filename_argument(out_path))])
|
|
|
|
if self._downloader.params.get('verbose', False):
|
|
self._downloader.to_screen(u'[debug] ffmpeg command line: %s' % shell_quote(cmd))
|
|
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
|
stdout,stderr = p.communicate()
|
|
if p.returncode != 0:
|
|
stderr = stderr.decode('utf-8', 'replace')
|
|
msg = stderr.strip().split('\n')[-1]
|
|
raise FFmpegPostProcessorError(msg)
|
|
|
|
def run_ffmpeg(self, path, out_path, opts):
|
|
self.run_ffmpeg_multiple_files([path], out_path, opts)
|
|
|
|
def _ffmpeg_filename_argument(self, fn):
|
|
# ffmpeg broke --, see https://ffmpeg.org/trac/ffmpeg/ticket/2127 for details
|
|
if fn.startswith(u'-'):
|
|
return u'./' + fn
|
|
return fn
|
|
|
|
class FFmpegExtractAudioPP(FFmpegPostProcessor):
|
|
def __init__(self, downloader=None, preferredcodec=None, preferredquality=None, nopostoverwrites=False):
|
|
FFmpegPostProcessor.__init__(self, downloader)
|
|
if preferredcodec is None:
|
|
preferredcodec = 'best'
|
|
self._preferredcodec = preferredcodec
|
|
self._preferredquality = preferredquality
|
|
self._nopostoverwrites = nopostoverwrites
|
|
|
|
def get_audio_codec(self, path):
|
|
if not self._exes['ffprobe'] and not self._exes['avprobe']:
|
|
raise PostProcessingError(u'ffprobe or avprobe not found. Please install one.')
|
|
try:
|
|
cmd = [self._exes['avprobe'] or self._exes['ffprobe'], '-show_streams', encodeFilename(self._ffmpeg_filename_argument(path))]
|
|
handle = subprocess.Popen(cmd, stderr=compat_subprocess_get_DEVNULL(), stdout=subprocess.PIPE)
|
|
output = handle.communicate()[0]
|
|
if handle.wait() != 0:
|
|
return None
|
|
except (IOError, OSError):
|
|
return None
|
|
audio_codec = None
|
|
for line in output.decode('ascii', 'ignore').split('\n'):
|
|
if line.startswith('codec_name='):
|
|
audio_codec = line.split('=')[1].strip()
|
|
elif line.strip() == 'codec_type=audio' and audio_codec is not None:
|
|
return audio_codec
|
|
return None
|
|
|
|
def run_ffmpeg(self, path, out_path, codec, more_opts):
|
|
if not self._exes['ffmpeg'] and not self._exes['avconv']:
|
|
raise AudioConversionError('ffmpeg or avconv not found. Please install one.')
|
|
if codec is None:
|
|
acodec_opts = []
|
|
else:
|
|
acodec_opts = ['-acodec', codec]
|
|
opts = ['-vn'] + acodec_opts + more_opts
|
|
try:
|
|
FFmpegPostProcessor.run_ffmpeg(self, path, out_path, opts)
|
|
except FFmpegPostProcessorError as err:
|
|
raise AudioConversionError(err.msg)
|
|
|
|
def run(self, information):
|
|
path = information['filepath']
|
|
|
|
filecodec = self.get_audio_codec(path)
|
|
if filecodec is None:
|
|
raise PostProcessingError(u'WARNING: unable to obtain file audio codec with ffprobe')
|
|
|
|
more_opts = []
|
|
if self._preferredcodec == 'best' or self._preferredcodec == filecodec or (self._preferredcodec == 'm4a' and filecodec == 'aac'):
|
|
if filecodec == 'aac' and self._preferredcodec in ['m4a', 'best']:
|
|
# Lossless, but in another container
|
|
acodec = 'copy'
|
|
extension = 'm4a'
|
|
more_opts = [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc']
|
|
elif filecodec in ['aac', 'mp3', 'vorbis', 'opus']:
|
|
# Lossless if possible
|
|
acodec = 'copy'
|
|
extension = filecodec
|
|
if filecodec == 'aac':
|
|
more_opts = ['-f', 'adts']
|
|
if filecodec == 'vorbis':
|
|
extension = 'ogg'
|
|
else:
|
|
# MP3 otherwise.
|
|
acodec = 'libmp3lame'
|
|
extension = 'mp3'
|
|
more_opts = []
|
|
if self._preferredquality is not None:
|
|
if int(self._preferredquality) < 10:
|
|
more_opts += [self._exes['avconv'] and '-q:a' or '-aq', self._preferredquality]
|
|
else:
|
|
more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality + 'k']
|
|
else:
|
|
# We convert the audio (lossy)
|
|
acodec = {'mp3': 'libmp3lame', 'aac': 'aac', 'm4a': 'aac', 'opus': 'opus', 'vorbis': 'libvorbis', 'wav': None}[self._preferredcodec]
|
|
extension = self._preferredcodec
|
|
more_opts = []
|
|
if self._preferredquality is not None:
|
|
# The opus codec doesn't support the -aq option
|
|
if int(self._preferredquality) < 10 and extension != 'opus':
|
|
more_opts += [self._exes['avconv'] and '-q:a' or '-aq', self._preferredquality]
|
|
else:
|
|
more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality + 'k']
|
|
if self._preferredcodec == 'aac':
|
|
more_opts += ['-f', 'adts']
|
|
if self._preferredcodec == 'm4a':
|
|
more_opts += [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc']
|
|
if self._preferredcodec == 'vorbis':
|
|
extension = 'ogg'
|
|
if self._preferredcodec == 'wav':
|
|
extension = 'wav'
|
|
more_opts += ['-f', 'wav']
|
|
|
|
prefix, sep, ext = path.rpartition(u'.') # not os.path.splitext, since the latter does not work on unicode in all setups
|
|
new_path = prefix + sep + extension
|
|
|
|
# If we download foo.mp3 and convert it to... foo.mp3, then don't delete foo.mp3, silly.
|
|
if new_path == path:
|
|
self._nopostoverwrites = True
|
|
|
|
try:
|
|
if self._nopostoverwrites and os.path.exists(encodeFilename(new_path)):
|
|
self._downloader.to_screen(u'[youtube] Post-process file %s exists, skipping' % new_path)
|
|
else:
|
|
self._downloader.to_screen(u'[' + (self._exes['avconv'] and 'avconv' or 'ffmpeg') + '] Destination: ' + new_path)
|
|
self.run_ffmpeg(path, new_path, acodec, more_opts)
|
|
except:
|
|
etype,e,tb = sys.exc_info()
|
|
if isinstance(e, AudioConversionError):
|
|
msg = u'audio conversion failed: ' + e.msg
|
|
else:
|
|
msg = u'error running ' + (self._exes['avconv'] and 'avconv' or 'ffmpeg')
|
|
raise PostProcessingError(msg)
|
|
|
|
# Try to update the date time for extracted audio file.
|
|
if information.get('filetime') is not None:
|
|
try:
|
|
os.utime(encodeFilename(new_path), (time.time(), information['filetime']))
|
|
except:
|
|
self._downloader.report_warning(u'Cannot update utime of audio file')
|
|
|
|
information['filepath'] = new_path
|
|
return self._nopostoverwrites,information
|
|
|
|
class FFmpegVideoConvertor(FFmpegPostProcessor):
|
|
def __init__(self, downloader=None,preferedformat=None):
|
|
super(FFmpegVideoConvertor, self).__init__(downloader)
|
|
self._preferedformat=preferedformat
|
|
|
|
def run(self, information):
|
|
path = information['filepath']
|
|
prefix, sep, ext = path.rpartition(u'.')
|
|
outpath = prefix + sep + self._preferedformat
|
|
if information['ext'] == self._preferedformat:
|
|
self._downloader.to_screen(u'[ffmpeg] Not converting video file %s - already is in target format %s' % (path, self._preferedformat))
|
|
return True,information
|
|
self._downloader.to_screen(u'['+'ffmpeg'+'] Converting video from %s to %s, Destination: ' % (information['ext'], self._preferedformat) +outpath)
|
|
self.run_ffmpeg(path, outpath, [])
|
|
information['filepath'] = outpath
|
|
information['format'] = self._preferedformat
|
|
information['ext'] = self._preferedformat
|
|
return False,information
|
|
|
|
|
|
class FFmpegEmbedSubtitlePP(FFmpegPostProcessor):
|
|
# See http://www.loc.gov/standards/iso639-2/ISO-639-2_utf-8.txt
|
|
_lang_map = {
|
|
'aa': 'aar',
|
|
'ab': 'abk',
|
|
'ae': 'ave',
|
|
'af': 'afr',
|
|
'ak': 'aka',
|
|
'am': 'amh',
|
|
'an': 'arg',
|
|
'ar': 'ara',
|
|
'as': 'asm',
|
|
'av': 'ava',
|
|
'ay': 'aym',
|
|
'az': 'aze',
|
|
'ba': 'bak',
|
|
'be': 'bel',
|
|
'bg': 'bul',
|
|
'bh': 'bih',
|
|
'bi': 'bis',
|
|
'bm': 'bam',
|
|
'bn': 'ben',
|
|
'bo': 'bod',
|
|
'br': 'bre',
|
|
'bs': 'bos',
|
|
'ca': 'cat',
|
|
'ce': 'che',
|
|
'ch': 'cha',
|
|
'co': 'cos',
|
|
'cr': 'cre',
|
|
'cs': 'ces',
|
|
'cu': 'chu',
|
|
'cv': 'chv',
|
|
'cy': 'cym',
|
|
'da': 'dan',
|
|
'de': 'deu',
|
|
'dv': 'div',
|
|
'dz': 'dzo',
|
|
'ee': 'ewe',
|
|
'el': 'ell',
|
|
'en': 'eng',
|
|
'eo': 'epo',
|
|
'es': 'spa',
|
|
'et': 'est',
|
|
'eu': 'eus',
|
|
'fa': 'fas',
|
|
'ff': 'ful',
|
|
'fi': 'fin',
|
|
'fj': 'fij',
|
|
'fo': 'fao',
|
|
'fr': 'fra',
|
|
'fy': 'fry',
|
|
'ga': 'gle',
|
|
'gd': 'gla',
|
|
'gl': 'glg',
|
|
'gn': 'grn',
|
|
'gu': 'guj',
|
|
'gv': 'glv',
|
|
'ha': 'hau',
|
|
'he': 'heb',
|
|
'hi': 'hin',
|
|
'ho': 'hmo',
|
|
'hr': 'hrv',
|
|
'ht': 'hat',
|
|
'hu': 'hun',
|
|
'hy': 'hye',
|
|
'hz': 'her',
|
|
'ia': 'ina',
|
|
'id': 'ind',
|
|
'ie': 'ile',
|
|
'ig': 'ibo',
|
|
'ii': 'iii',
|
|
'ik': 'ipk',
|
|
'io': 'ido',
|
|
'is': 'isl',
|
|
'it': 'ita',
|
|
'iu': 'iku',
|
|
'ja': 'jpn',
|
|
'jv': 'jav',
|
|
'ka': 'kat',
|
|
'kg': 'kon',
|
|
'ki': 'kik',
|
|
'kj': 'kua',
|
|
'kk': 'kaz',
|
|
'kl': 'kal',
|
|
'km': 'khm',
|
|
'kn': 'kan',
|
|
'ko': 'kor',
|
|
'kr': 'kau',
|
|
'ks': 'kas',
|
|
'ku': 'kur',
|
|
'kv': 'kom',
|
|
'kw': 'cor',
|
|
'ky': 'kir',
|
|
'la': 'lat',
|
|
'lb': 'ltz',
|
|
'lg': 'lug',
|
|
'li': 'lim',
|
|
'ln': 'lin',
|
|
'lo': 'lao',
|
|
'lt': 'lit',
|
|
'lu': 'lub',
|
|
'lv': 'lav',
|
|
'mg': 'mlg',
|
|
'mh': 'mah',
|
|
'mi': 'mri',
|
|
'mk': 'mkd',
|
|
'ml': 'mal',
|
|
'mn': 'mon',
|
|
'mr': 'mar',
|
|
'ms': 'msa',
|
|
'mt': 'mlt',
|
|
'my': 'mya',
|
|
'na': 'nau',
|
|
'nb': 'nob',
|
|
'nd': 'nde',
|
|
'ne': 'nep',
|
|
'ng': 'ndo',
|
|
'nl': 'nld',
|
|
'nn': 'nno',
|
|
'no': 'nor',
|
|
'nr': 'nbl',
|
|
'nv': 'nav',
|
|
'ny': 'nya',
|
|
'oc': 'oci',
|
|
'oj': 'oji',
|
|
'om': 'orm',
|
|
'or': 'ori',
|
|
'os': 'oss',
|
|
'pa': 'pan',
|
|
'pi': 'pli',
|
|
'pl': 'pol',
|
|
'ps': 'pus',
|
|
'pt': 'por',
|
|
'qu': 'que',
|
|
'rm': 'roh',
|
|
'rn': 'run',
|
|
'ro': 'ron',
|
|
'ru': 'rus',
|
|
'rw': 'kin',
|
|
'sa': 'san',
|
|
'sc': 'srd',
|
|
'sd': 'snd',
|
|
'se': 'sme',
|
|
'sg': 'sag',
|
|
'si': 'sin',
|
|
'sk': 'slk',
|
|
'sl': 'slv',
|
|
'sm': 'smo',
|
|
'sn': 'sna',
|
|
'so': 'som',
|
|
'sq': 'sqi',
|
|
'sr': 'srp',
|
|
'ss': 'ssw',
|
|
'st': 'sot',
|
|
'su': 'sun',
|
|
'sv': 'swe',
|
|
'sw': 'swa',
|
|
'ta': 'tam',
|
|
'te': 'tel',
|
|
'tg': 'tgk',
|
|
'th': 'tha',
|
|
'ti': 'tir',
|
|
'tk': 'tuk',
|
|
'tl': 'tgl',
|
|
'tn': 'tsn',
|
|
'to': 'ton',
|
|
'tr': 'tur',
|
|
'ts': 'tso',
|
|
'tt': 'tat',
|
|
'tw': 'twi',
|
|
'ty': 'tah',
|
|
'ug': 'uig',
|
|
'uk': 'ukr',
|
|
'ur': 'urd',
|
|
'uz': 'uzb',
|
|
've': 'ven',
|
|
'vi': 'vie',
|
|
'vo': 'vol',
|
|
'wa': 'wln',
|
|
'wo': 'wol',
|
|
'xh': 'xho',
|
|
'yi': 'yid',
|
|
'yo': 'yor',
|
|
'za': 'zha',
|
|
'zh': 'zho',
|
|
'zu': 'zul',
|
|
}
|
|
|
|
def __init__(self, downloader=None, subtitlesformat='srt'):
|
|
super(FFmpegEmbedSubtitlePP, self).__init__(downloader)
|
|
self._subformat = subtitlesformat
|
|
|
|
@classmethod
|
|
def _conver_lang_code(cls, code):
|
|
"""Convert language code from ISO 639-1 to ISO 639-2/T"""
|
|
return cls._lang_map.get(code[:2])
|
|
|
|
def run(self, information):
|
|
if information['ext'] != u'mp4':
|
|
self._downloader.to_screen(u'[ffmpeg] Subtitles can only be embedded in mp4 files')
|
|
return True, information
|
|
if not information.get('subtitles'):
|
|
self._downloader.to_screen(u'[ffmpeg] There aren\'t any subtitles to embed')
|
|
return True, information
|
|
|
|
sub_langs = [key for key in information['subtitles']]
|
|
filename = information['filepath']
|
|
input_files = [filename] + [subtitles_filename(filename, lang, self._subformat) for lang in sub_langs]
|
|
|
|
opts = ['-map', '0:0', '-map', '0:1', '-c:v', 'copy', '-c:a', 'copy']
|
|
for (i, lang) in enumerate(sub_langs):
|
|
opts.extend(['-map', '%d:0' % (i+1), '-c:s:%d' % i, 'mov_text'])
|
|
lang_code = self._conver_lang_code(lang)
|
|
if lang_code is not None:
|
|
opts.extend(['-metadata:s:s:%d' % i, 'language=%s' % lang_code])
|
|
opts.extend(['-f', 'mp4'])
|
|
|
|
temp_filename = filename + u'.temp'
|
|
self._downloader.to_screen(u'[ffmpeg] Embedding subtitles in \'%s\'' % filename)
|
|
self.run_ffmpeg_multiple_files(input_files, temp_filename, opts)
|
|
os.remove(encodeFilename(filename))
|
|
os.rename(encodeFilename(temp_filename), encodeFilename(filename))
|
|
|
|
return True, information
|
|
|
|
|
|
class FFmpegMetadataPP(FFmpegPostProcessor):
|
|
def run(self, info):
|
|
metadata = {}
|
|
if info.get('title') is not None:
|
|
metadata['title'] = info['title']
|
|
if info.get('upload_date') is not None:
|
|
metadata['date'] = info['upload_date']
|
|
if info.get('uploader') is not None:
|
|
metadata['artist'] = info['uploader']
|
|
elif info.get('uploader_id') is not None:
|
|
metadata['artist'] = info['uploader_id']
|
|
|
|
if not metadata:
|
|
self._downloader.to_screen(u'[ffmpeg] There isn\'t any metadata to add')
|
|
return True, info
|
|
|
|
filename = info['filepath']
|
|
ext = os.path.splitext(filename)[1][1:]
|
|
temp_filename = filename + u'.temp'
|
|
|
|
options = ['-c', 'copy']
|
|
for (name, value) in metadata.items():
|
|
options.extend(['-metadata', '%s=%s' % (name, value)])
|
|
options.extend(['-f', ext])
|
|
|
|
self._downloader.to_screen(u'[ffmpeg] Adding metadata to \'%s\'' % filename)
|
|
self.run_ffmpeg(filename, temp_filename, options)
|
|
os.remove(encodeFilename(filename))
|
|
os.rename(encodeFilename(temp_filename), encodeFilename(filename))
|
|
return True, info
|