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-rw-r--r--youtube_dl/postprocessor/__init__.py654
1 files changed, 16 insertions, 638 deletions
diff --git a/youtube_dl/postprocessor/__init__.py b/youtube_dl/postprocessor/__init__.py
index 282cc4d7e..7f19f717f 100644
--- a/youtube_dl/postprocessor/__init__.py
+++ b/youtube_dl/postprocessor/__init__.py
@@ -1,640 +1,18 @@
-import os
-import subprocess
-import sys
-import time
-
-from ..utils import (
- compat_subprocess_get_DEVNULL,
- encodeFilename,
- hyphenate_date,
- PostProcessingError,
- prepend_extension,
- shell_quote,
- subtitles_filename,
+from .ffmpeg import (
+ FFmpegMergerPP,
+ FFmpegMetadataPP,
+ FFmpegVideoConvertor,
+ FFmpegExtractAudioPP,
+ FFmpegEmbedSubtitlePP,
)
-
-
-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, True)])
- cmd = ([self._exes['avconv'] or self._exes['ffmpeg'], '-y'] + files_cmd
- + opts +
- [encodeFilename(self._ffmpeg_filename_argument(out_path), True)])
-
- 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), True)]
- 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']
- temp_filename = prepend_extension(filename, 'temp')
-
- options = ['-c', 'copy']
- for (name, value) in metadata.items():
- options.extend(['-metadata', '%s=%s' % (name, value)])
-
- 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
-
-
-class FFmpegMergerPP(FFmpegPostProcessor):
- def run(self, info):
- filename = info['filepath']
- args = ['-c', 'copy']
- self.run_ffmpeg_multiple_files(info['__files_to_merge'], filename, args)
- return True, info
-
-
-class XAttrMetadataPP(PostProcessor):
-
- #
- # More info about extended attributes for media:
- # http://freedesktop.org/wiki/CommonExtendedAttributes/
- # http://www.freedesktop.org/wiki/PhreedomDraft/
- # http://dublincore.org/documents/usageguide/elements.shtml
- #
- # TODO:
- # * capture youtube keywords and put them in 'user.dublincore.subject' (comma-separated)
- # * figure out which xattrs can be used for 'duration', 'thumbnail', 'resolution'
- #
-
- def run(self, info):
- """ Set extended attributes on downloaded file (if xattr support is found). """
-
- # This mess below finds the best xattr tool for the job and creates a
- # "write_xattr" function.
- try:
- # try the pyxattr module...
- import xattr
- def write_xattr(path, key, value):
- return xattr.setxattr(path, key, value)
-
- except ImportError:
-
- if os.name == 'posix':
- def which(bin):
- for dir in os.environ["PATH"].split(":"):
- path = os.path.join(dir, bin)
- if os.path.exists(path):
- return path
-
- user_has_setfattr = which("setfattr")
- user_has_xattr = which("xattr")
-
- if user_has_setfattr or user_has_xattr:
-
- def write_xattr(path, key, value):
- import errno
- potential_errors = {
- # setfattr: /tmp/blah: Operation not supported
- "Operation not supported": errno.EOPNOTSUPP,
- # setfattr: ~/blah: No such file or directory
- # xattr: No such file: ~/blah
- "No such file": errno.ENOENT,
- }
-
- if user_has_setfattr:
- cmd = ['setfattr', '-n', key, '-v', value, path]
- elif user_has_xattr:
- cmd = ['xattr', '-w', key, value, path]
-
- try:
- output = subprocess.check_output(cmd, stderr=subprocess.STDOUT)
- except subprocess.CalledProcessError as e:
- errorstr = e.output.strip().decode()
- for potential_errorstr, potential_errno in potential_errors.items():
- if errorstr.find(potential_errorstr) > -1:
- e = OSError(potential_errno, potential_errorstr)
- e.__cause__ = None
- raise e
- raise # Reraise unhandled error
-
- else:
- # On Unix, and can't find pyxattr, setfattr, or xattr.
- if sys.platform.startswith('linux'):
- self._downloader.report_error("Couldn't find a tool to set the xattrs. Install either the python 'pyxattr' or 'xattr' modules, or the GNU 'attr' package (which contains the 'setfattr' tool).")
- elif sys.platform == 'darwin':
- self._downloader.report_error("Couldn't find a tool to set the xattrs. Install either the python 'xattr' module, or the 'xattr' binary.")
- else:
- # Write xattrs to NTFS Alternate Data Streams: http://en.wikipedia.org/wiki/NTFS#Alternate_data_streams_.28ADS.29
- def write_xattr(path, key, value):
- assert(key.find(":") < 0)
- assert(path.find(":") < 0)
- assert(os.path.exists(path))
-
- ads_fn = path + ":" + key
- with open(ads_fn, "w") as f:
- f.write(value)
-
- # Write the metadata to the file's xattrs
- self._downloader.to_screen('[metadata] Writing metadata to file\'s xattrs...')
-
- filename = info['filepath']
-
- try:
- xattr_mapping = {
- 'user.xdg.referrer.url': 'webpage_url',
- # 'user.xdg.comment': 'description',
- 'user.dublincore.title': 'title',
- 'user.dublincore.date': 'upload_date',
- 'user.dublincore.description': 'description',
- 'user.dublincore.contributor': 'uploader',
- 'user.dublincore.format': 'format',
- }
-
- for xattrname, infoname in xattr_mapping.items():
-
- value = info.get(infoname)
-
- if value:
- if infoname == "upload_date":
- value = hyphenate_date(value)
-
- write_xattr(filename, xattrname, value)
-
- return True, info
-
- except OSError:
- self._downloader.report_error("This filesystem doesn't support extended attributes. (You may have to enable them in your /etc/fstab)")
- return False, info
-
+from .xattrpp import XAttrMetadataPP
+
+__all__ = [
+ 'FFmpegMergerPP',
+ 'FFmpegMetadataPP',
+ 'FFmpegVideoConvertor',
+ 'FFmpegExtractAudioPP',
+ 'FFmpegEmbedSubtitlePP',
+ 'XAttrMetadataPP',
+]
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-07 06:05:06 +0000