mirror of
https://github.com/l1ving/youtube-dl
synced 2024-12-31 01:52:52 +08:00
bc3e582fe4
With avconv and older versions of ffmpeg the video is partially copied. The duration difference between the audio and the video seem to be really small, so it's probably not noticeable.
542 lines
18 KiB
Python
542 lines
18 KiB
Python
from __future__ import unicode_literals
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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 .common import AudioConversionError, PostProcessor
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from ..compat import (
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compat_subprocess_get_DEVNULL,
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)
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from ..utils import (
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encodeArgument,
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encodeFilename,
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get_exe_version,
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is_outdated_version,
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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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)
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class FFmpegPostProcessorError(PostProcessingError):
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pass
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class FFmpegPostProcessor(PostProcessor):
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def __init__(self, downloader=None, deletetempfiles=False):
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PostProcessor.__init__(self, downloader)
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self._versions = self.get_versions()
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self._deletetempfiles = deletetempfiles
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def check_version(self):
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if not self._executable:
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raise FFmpegPostProcessorError('ffmpeg or avconv not found. Please install one.')
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required_version = '10-0' if self._uses_avconv() else '1.0'
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if is_outdated_version(
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self._versions[self._executable], required_version):
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warning = 'Your copy of %s is outdated, update %s to version %s or newer if you encounter any errors.' % (
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self._executable, self._executable, required_version)
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if self._downloader:
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self._downloader.report_warning(warning)
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@staticmethod
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def get_versions():
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programs = ['avprobe', 'avconv', 'ffmpeg', 'ffprobe']
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return dict((p, get_exe_version(p, args=['-version'])) for p in programs)
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@property
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def _executable(self):
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if self._downloader.params.get('prefer_ffmpeg', False):
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prefs = ('ffmpeg', 'avconv')
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else:
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prefs = ('avconv', 'ffmpeg')
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for p in prefs:
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if self._versions[p]:
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return p
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return None
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@property
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def _probe_executable(self):
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if self._downloader.params.get('prefer_ffmpeg', False):
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prefs = ('ffprobe', 'avprobe')
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else:
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prefs = ('avprobe', 'ffprobe')
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for p in prefs:
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if self._versions[p]:
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return p
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return None
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def _uses_avconv(self):
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return self._executable == 'avconv'
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def run_ffmpeg_multiple_files(self, input_paths, out_path, opts):
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self.check_version()
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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._executable, '-y'] + files_cmd
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+ [encodeArgument(o) for o in 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('[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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if self._deletetempfiles:
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for ipath in input_paths:
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os.remove(ipath)
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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('-'):
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return './' + 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._probe_executable:
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raise PostProcessingError('ffprobe or avprobe not found. Please install one.')
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try:
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cmd = [
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self._probe_executable,
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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 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('WARNING: unable to obtain file audio codec with ffprobe')
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uses_avconv = self._uses_avconv()
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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 = ['-bsf:a' if uses_avconv else '-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 += ['-q:a' if uses_avconv else '-aq', self._preferredquality]
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else:
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more_opts += ['-b:a' if uses_avconv else '-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 += ['-q:a' if uses_avconv else '-aq', self._preferredquality]
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else:
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more_opts += ['-b:a' if uses_avconv else '-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 += ['-bsf:a' if uses_avconv else '-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('.') # 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('[youtube] Post-process file %s exists, skipping' % new_path)
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else:
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self._downloader.to_screen('[' + self._executable + '] 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 = 'audio conversion failed: ' + e.msg
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else:
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msg = 'error running ' + self._executable
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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('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 FFmpegVideoConvertorPP(FFmpegPostProcessor):
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def __init__(self, downloader=None, preferedformat=None):
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super(FFmpegVideoConvertorPP, 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('.')
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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('[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('[' + '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
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def _conver_lang_code(cls, code):
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"""Convert language code from ISO 639-1 to ISO 639-2/T"""
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return cls._lang_map.get(code[:2])
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def run(self, information):
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if information['ext'] != 'mp4':
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self._downloader.to_screen('[ffmpeg] Subtitles can only be embedded in mp4 files')
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return True, information
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if not information.get('subtitles'):
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self._downloader.to_screen('[ffmpeg] There aren\'t any subtitles to embed')
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return True, information
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sub_langs = [key for key in information['subtitles']]
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filename = information['filepath']
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input_files = [filename] + [subtitles_filename(filename, lang, self._subformat) for lang in sub_langs]
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opts = ['-map', '0:0', '-map', '0:1', '-c:v', 'copy', '-c:a', 'copy']
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for (i, lang) in enumerate(sub_langs):
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opts.extend(['-map', '%d:0' % (i + 1), '-c:s:%d' % i, 'mov_text'])
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lang_code = self._conver_lang_code(lang)
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if lang_code is not None:
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opts.extend(['-metadata:s:s:%d' % i, 'language=%s' % lang_code])
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opts.extend(['-f', 'mp4'])
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temp_filename = filename + '.temp'
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self._downloader.to_screen('[ffmpeg] Embedding subtitles in \'%s\'' % filename)
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self.run_ffmpeg_multiple_files(input_files, temp_filename, opts)
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os.remove(encodeFilename(filename))
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os.rename(encodeFilename(temp_filename), encodeFilename(filename))
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return True, information
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class FFmpegMetadataPP(FFmpegPostProcessor):
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def run(self, info):
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metadata = {}
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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('[ffmpeg] There isn\'t any metadata to add')
|
|
return True, info
|
|
|
|
filename = info['filepath']
|
|
temp_filename = prepend_extension(filename, 'temp')
|
|
|
|
if info['ext'] == 'm4a':
|
|
options = ['-vn', '-acodec', 'copy']
|
|
else:
|
|
options = ['-c', 'copy']
|
|
|
|
for (name, value) in metadata.items():
|
|
options.extend(['-metadata', '%s=%s' % (name, value)])
|
|
|
|
self._downloader.to_screen('[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', '-map', '0:v:0', '-map', '1:a:0']
|
|
self._downloader.to_screen('[ffmpeg] Merging formats into "%s"' % filename)
|
|
self.run_ffmpeg_multiple_files(info['__files_to_merge'], filename, args)
|
|
return True, info
|
|
|
|
|
|
class FFmpegAudioFixPP(FFmpegPostProcessor):
|
|
def run(self, info):
|
|
filename = info['filepath']
|
|
temp_filename = prepend_extension(filename, 'temp')
|
|
|
|
options = ['-vn', '-acodec', 'copy']
|
|
self._downloader.to_screen('[ffmpeg] Fixing audio file "%s"' % filename)
|
|
self.run_ffmpeg(filename, temp_filename, options)
|
|
|
|
os.remove(encodeFilename(filename))
|
|
os.rename(encodeFilename(temp_filename), encodeFilename(filename))
|
|
|
|
return True, info
|