mirror of
https://github.com/ytdl-org/youtube-dl.git
synced 2024-11-23 19:35:19 +01:00
Split postprocessor package into multiple modules
This commit is contained in:
Philipp Hagemeister
parent
4f81667d76
commit
496c19234c
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@ -1,640 +1,18 @@
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import os
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import subprocess
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import sys
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import time
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from ..utils import (
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compat_subprocess_get_DEVNULL,
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encodeFilename,
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hyphenate_date,
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PostProcessingError,
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prepend_extension,
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shell_quote,
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subtitles_filename,
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from .ffmpeg import (
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FFmpegMergerPP,
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FFmpegMetadataPP,
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FFmpegVideoConvertor,
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FFmpegExtractAudioPP,
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FFmpegEmbedSubtitlePP,
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)
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class PostProcessor(object):
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"""Post Processor class.
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PostProcessor objects can be added to downloaders with their
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add_post_processor() method. When the downloader has finished a
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successful download, it will take its internal chain of PostProcessors
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and start calling the run() method on each one of them, first with
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an initial argument and then with the returned value of the previous
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PostProcessor.
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The chain will be stopped if one of them ever returns None or the end
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of the chain is reached.
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PostProcessor objects follow a "mutual registration" process similar
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to InfoExtractor objects.
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"""
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_downloader = None
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def __init__(self, downloader=None):
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self._downloader = downloader
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def set_downloader(self, downloader):
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"""Sets the downloader for this PP."""
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self._downloader = downloader
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def run(self, information):
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"""Run the PostProcessor.
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The "information" argument is a dictionary like the ones
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composed by InfoExtractors. The only difference is that this
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one has an extra field called "filepath" that points to the
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downloaded file.
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This method returns a tuple, the first element of which describes
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whether the original file should be kept (i.e. not deleted - None for
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no preference), and the second of which is the updated information.
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In addition, this method may raise a PostProcessingError
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exception if post processing fails.
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"""
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return None, information # by default, keep file and do nothing
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class FFmpegPostProcessorError(PostProcessingError):
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pass
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class AudioConversionError(PostProcessingError):
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pass
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class FFmpegPostProcessor(PostProcessor):
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def __init__(self,downloader=None):
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PostProcessor.__init__(self, downloader)
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self._exes = self.detect_executables()
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@staticmethod
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def detect_executables():
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def executable(exe):
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try:
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subprocess.Popen([exe, '-version'], stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
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except OSError:
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return False
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return exe
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programs = ['avprobe', 'avconv', 'ffmpeg', 'ffprobe']
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return dict((program, executable(program)) for program in programs)
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def run_ffmpeg_multiple_files(self, input_paths, out_path, opts):
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if not self._exes['ffmpeg'] and not self._exes['avconv']:
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raise FFmpegPostProcessorError(u'ffmpeg or avconv not found. Please install one.')
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files_cmd = []
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for path in input_paths:
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files_cmd.extend(['-i', encodeFilename(path, True)])
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cmd = ([self._exes['avconv'] or self._exes['ffmpeg'], '-y'] + files_cmd
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+ opts +
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[encodeFilename(self._ffmpeg_filename_argument(out_path), True)])
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if self._downloader.params.get('verbose', False):
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self._downloader.to_screen(u'[debug] ffmpeg command line: %s' % shell_quote(cmd))
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p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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stdout,stderr = p.communicate()
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if p.returncode != 0:
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stderr = stderr.decode('utf-8', 'replace')
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msg = stderr.strip().split('\n')[-1]
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raise FFmpegPostProcessorError(msg)
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def run_ffmpeg(self, path, out_path, opts):
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self.run_ffmpeg_multiple_files([path], out_path, opts)
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def _ffmpeg_filename_argument(self, fn):
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# ffmpeg broke --, see https://ffmpeg.org/trac/ffmpeg/ticket/2127 for details
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if fn.startswith(u'-'):
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return u'./' + fn
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return fn
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class FFmpegExtractAudioPP(FFmpegPostProcessor):
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def __init__(self, downloader=None, preferredcodec=None, preferredquality=None, nopostoverwrites=False):
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FFmpegPostProcessor.__init__(self, downloader)
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if preferredcodec is None:
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preferredcodec = 'best'
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self._preferredcodec = preferredcodec
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self._preferredquality = preferredquality
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self._nopostoverwrites = nopostoverwrites
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def get_audio_codec(self, path):
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if not self._exes['ffprobe'] and not self._exes['avprobe']:
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raise PostProcessingError(u'ffprobe or avprobe not found. Please install one.')
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try:
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cmd = [
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self._exes['avprobe'] or self._exes['ffprobe'],
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'-show_streams',
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encodeFilename(self._ffmpeg_filename_argument(path), True)]
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handle = subprocess.Popen(cmd, stderr=compat_subprocess_get_DEVNULL(), stdout=subprocess.PIPE)
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output = handle.communicate()[0]
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if handle.wait() != 0:
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return None
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except (IOError, OSError):
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return None
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audio_codec = None
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for line in output.decode('ascii', 'ignore').split('\n'):
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if line.startswith('codec_name='):
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audio_codec = line.split('=')[1].strip()
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elif line.strip() == 'codec_type=audio' and audio_codec is not None:
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return audio_codec
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return None
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def run_ffmpeg(self, path, out_path, codec, more_opts):
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if not self._exes['ffmpeg'] and not self._exes['avconv']:
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raise AudioConversionError('ffmpeg or avconv not found. Please install one.')
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if codec is None:
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acodec_opts = []
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else:
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acodec_opts = ['-acodec', codec]
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opts = ['-vn'] + acodec_opts + more_opts
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try:
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FFmpegPostProcessor.run_ffmpeg(self, path, out_path, opts)
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except FFmpegPostProcessorError as err:
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raise AudioConversionError(err.msg)
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def run(self, information):
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path = information['filepath']
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filecodec = self.get_audio_codec(path)
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if filecodec is None:
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raise PostProcessingError(u'WARNING: unable to obtain file audio codec with ffprobe')
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more_opts = []
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if self._preferredcodec == 'best' or self._preferredcodec == filecodec or (self._preferredcodec == 'm4a' and filecodec == 'aac'):
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if filecodec == 'aac' and self._preferredcodec in ['m4a', 'best']:
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# Lossless, but in another container
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acodec = 'copy'
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extension = 'm4a'
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more_opts = [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc']
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elif filecodec in ['aac', 'mp3', 'vorbis', 'opus']:
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# Lossless if possible
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acodec = 'copy'
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extension = filecodec
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if filecodec == 'aac':
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more_opts = ['-f', 'adts']
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if filecodec == 'vorbis':
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extension = 'ogg'
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else:
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# MP3 otherwise.
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acodec = 'libmp3lame'
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extension = 'mp3'
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more_opts = []
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if self._preferredquality is not None:
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if int(self._preferredquality) < 10:
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more_opts += [self._exes['avconv'] and '-q:a' or '-aq', self._preferredquality]
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else:
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more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality + 'k']
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else:
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# We convert the audio (lossy)
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acodec = {'mp3': 'libmp3lame', 'aac': 'aac', 'm4a': 'aac', 'opus': 'opus', 'vorbis': 'libvorbis', 'wav': None}[self._preferredcodec]
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extension = self._preferredcodec
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more_opts = []
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if self._preferredquality is not None:
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# The opus codec doesn't support the -aq option
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if int(self._preferredquality) < 10 and extension != 'opus':
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more_opts += [self._exes['avconv'] and '-q:a' or '-aq', self._preferredquality]
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else:
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more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality + 'k']
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if self._preferredcodec == 'aac':
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more_opts += ['-f', 'adts']
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if self._preferredcodec == 'm4a':
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more_opts += [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc']
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if self._preferredcodec == 'vorbis':
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extension = 'ogg'
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if self._preferredcodec == 'wav':
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extension = 'wav'
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more_opts += ['-f', 'wav']
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prefix, sep, ext = path.rpartition(u'.') # not os.path.splitext, since the latter does not work on unicode in all setups
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new_path = prefix + sep + extension
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# If we download foo.mp3 and convert it to... foo.mp3, then don't delete foo.mp3, silly.
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if new_path == path:
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self._nopostoverwrites = True
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try:
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if self._nopostoverwrites and os.path.exists(encodeFilename(new_path)):
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self._downloader.to_screen(u'[youtube] Post-process file %s exists, skipping' % new_path)
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else:
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self._downloader.to_screen(u'[' + (self._exes['avconv'] and 'avconv' or 'ffmpeg') + '] Destination: ' + new_path)
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self.run_ffmpeg(path, new_path, acodec, more_opts)
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except:
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etype,e,tb = sys.exc_info()
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if isinstance(e, AudioConversionError):
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msg = u'audio conversion failed: ' + e.msg
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else:
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msg = u'error running ' + (self._exes['avconv'] and 'avconv' or 'ffmpeg')
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raise PostProcessingError(msg)
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# Try to update the date time for extracted audio file.
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if information.get('filetime') is not None:
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try:
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os.utime(encodeFilename(new_path), (time.time(), information['filetime']))
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except:
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self._downloader.report_warning(u'Cannot update utime of audio file')
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information['filepath'] = new_path
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return self._nopostoverwrites,information
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class FFmpegVideoConvertor(FFmpegPostProcessor):
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def __init__(self, downloader=None,preferedformat=None):
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super(FFmpegVideoConvertor, self).__init__(downloader)
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self._preferedformat=preferedformat
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def run(self, information):
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path = information['filepath']
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prefix, sep, ext = path.rpartition(u'.')
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outpath = prefix + sep + self._preferedformat
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if information['ext'] == self._preferedformat:
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self._downloader.to_screen(u'[ffmpeg] Not converting video file %s - already is in target format %s' % (path, self._preferedformat))
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return True,information
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self._downloader.to_screen(u'['+'ffmpeg'+'] Converting video from %s to %s, Destination: ' % (information['ext'], self._preferedformat) +outpath)
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self.run_ffmpeg(path, outpath, [])
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information['filepath'] = outpath
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information['format'] = self._preferedformat
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information['ext'] = self._preferedformat
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return False,information
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class FFmpegEmbedSubtitlePP(FFmpegPostProcessor):
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# See http://www.loc.gov/standards/iso639-2/ISO-639-2_utf-8.txt
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_lang_map = {
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'aa': 'aar',
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'ab': 'abk',
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'ae': 'ave',
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'af': 'afr',
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'ak': 'aka',
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'am': 'amh',
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'an': 'arg',
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'ar': 'ara',
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'as': 'asm',
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'av': 'ava',
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'ay': 'aym',
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'az': 'aze',
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'ba': 'bak',
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'be': 'bel',
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'bg': 'bul',
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'bh': 'bih',
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'bi': 'bis',
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'bm': 'bam',
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'bn': 'ben',
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'bo': 'bod',
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'br': 'bre',
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'bs': 'bos',
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'ca': 'cat',
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'ce': 'che',
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'ch': 'cha',
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'co': 'cos',
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'cr': 'cre',
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'cs': 'ces',
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'cu': 'chu',
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'cv': 'chv',
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'cy': 'cym',
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'da': 'dan',
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'de': 'deu',
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'dv': 'div',
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'dz': 'dzo',
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'ee': 'ewe',
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'el': 'ell',
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'en': 'eng',
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'eo': 'epo',
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'es': 'spa',
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'et': 'est',
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'eu': 'eus',
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'fa': 'fas',
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'ff': 'ful',
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'fi': 'fin',
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'fj': 'fij',
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'fo': 'fao',
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'fr': 'fra',
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'fy': 'fry',
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'ga': 'gle',
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'gd': 'gla',
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'gl': 'glg',
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'gn': 'grn',
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'gu': 'guj',
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'gv': 'glv',
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'ha': 'hau',
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'he': 'heb',
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'hi': 'hin',
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'ho': 'hmo',
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'hr': 'hrv',
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'ht': 'hat',
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'hu': 'hun',
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'hy': 'hye',
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'hz': 'her',
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'ia': 'ina',
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'id': 'ind',
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'ie': 'ile',
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'ig': 'ibo',
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'ii': 'iii',
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'ik': 'ipk',
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'io': 'ido',
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'is': 'isl',
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'it': 'ita',
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'iu': 'iku',
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'ja': 'jpn',
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'jv': 'jav',
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'ka': 'kat',
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'kg': 'kon',
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'ki': 'kik',
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'kj': 'kua',
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'kk': 'kaz',
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'kl': 'kal',
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'km': 'khm',
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'kn': 'kan',
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'ko': 'kor',
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'kr': 'kau',
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'ks': 'kas',
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'ku': 'kur',
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'kv': 'kom',
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'kw': 'cor',
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'ky': 'kir',
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'la': 'lat',
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'lb': 'ltz',
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'lg': 'lug',
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'li': 'lim',
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'ln': 'lin',
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'lo': 'lao',
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'lt': 'lit',
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'lu': 'lub',
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'lv': 'lav',
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'mg': 'mlg',
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'mh': 'mah',
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'mi': 'mri',
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'mk': 'mkd',
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'ml': 'mal',
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'mn': 'mon',
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'mr': 'mar',
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'ms': 'msa',
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'mt': 'mlt',
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'my': 'mya',
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'na': 'nau',
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'nb': 'nob',
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'nd': 'nde',
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'ne': 'nep',
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'ng': 'ndo',
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'nl': 'nld',
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'nn': 'nno',
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'no': 'nor',
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'nr': 'nbl',
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'nv': 'nav',
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'ny': 'nya',
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'oc': 'oci',
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'oj': 'oji',
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'om': 'orm',
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'or': 'ori',
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'os': 'oss',
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'pa': 'pan',
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'pi': 'pli',
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'pl': 'pol',
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'ps': 'pus',
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'pt': 'por',
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'qu': 'que',
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'rm': 'roh',
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'rn': 'run',
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'ro': 'ron',
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'ru': 'rus',
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'rw': 'kin',
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'sa': 'san',
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'sc': 'srd',
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'sd': 'snd',
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'se': 'sme',
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'sg': 'sag',
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'si': 'sin',
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'sk': 'slk',
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'sl': 'slv',
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'sm': 'smo',
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'sn': 'sna',
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'so': 'som',
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'sq': 'sqi',
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'sr': 'srp',
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'ss': 'ssw',
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'st': 'sot',
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'su': 'sun',
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'sv': 'swe',
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'sw': 'swa',
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'ta': 'tam',
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'te': 'tel',
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'tg': 'tgk',
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'th': 'tha',
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'ti': 'tir',
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'tk': 'tuk',
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'tl': 'tgl',
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'tn': 'tsn',
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'to': 'ton',
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'tr': 'tur',
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'ts': 'tso',
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'tt': 'tat',
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'tw': 'twi',
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'ty': 'tah',
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'ug': 'uig',
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'uk': 'ukr',
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'ur': 'urd',
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'uz': 'uzb',
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've': 'ven',
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'vi': 'vie',
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'vo': 'vol',
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'wa': 'wln',
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'wo': 'wol',
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'xh': 'xho',
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'yi': 'yid',
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'yo': 'yor',
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'za': 'zha',
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'zh': 'zho',
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'zu': 'zul',
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}
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def __init__(self, downloader=None, subtitlesformat='srt'):
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super(FFmpegEmbedSubtitlePP, self).__init__(downloader)
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self._subformat = subtitlesformat
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||||
@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',
|
||||
]
|
||||
|
|
|
|||
49
youtube_dl/postprocessor/common.py
Normal file
49
youtube_dl/postprocessor/common.py
Normal file
|
|
@ -0,0 +1,49 @@
|
|||
from ..utils import PostProcessingError
|
||||
|
||||
|
||||
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 AudioConversionError(PostProcessingError):
|
||||
pass
|
||||
481
youtube_dl/postprocessor/ffmpeg.py
Normal file
481
youtube_dl/postprocessor/ffmpeg.py
Normal file
|
|
@ -0,0 +1,481 @@
|
|||
import os
|
||||
import subprocess
|
||||
import sys
|
||||
import time
|
||||
|
||||
|
||||
from .common import AudioConversionError, PostProcessor
|
||||
|
||||
from ..utils import (
|
||||
compat_subprocess_get_DEVNULL,
|
||||
encodeFilename,
|
||||
PostProcessingError,
|
||||
prepend_extension,
|
||||
shell_quote,
|
||||
subtitles_filename,
|
||||
)
|
||||
|
||||
|
||||
|
||||
class FFmpegPostProcessorError(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
|
||||
|
||||
123
youtube_dl/postprocessor/xattrpp.py
Normal file
123
youtube_dl/postprocessor/xattrpp.py
Normal file
|
|
@ -0,0 +1,123 @@
|
|||
import os
|
||||
import subprocess
|
||||
import sys
|
||||
|
||||
from .common import PostProcessor
|
||||
from ..utils import (
|
||||
hyphenate_date,
|
||||
)
|
||||
|
||||
|
||||
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:
|
||||
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
|
||||
|
||||
Loading…
Reference in New Issue
Block a user