1 from __future__
import unicode_literals
9 from .common
import AudioConversionError
, PostProcessor
11 from ..compat
import (
12 compat_subprocess_get_DEVNULL
,
26 class FFmpegPostProcessorError(PostProcessingError
):
30 class FFmpegPostProcessor(PostProcessor
):
31 def __init__(self
, downloader
=None, deletetempfiles
=False):
32 PostProcessor
.__init
__(self
, downloader
)
33 self
._versions
= self
.get_versions()
34 self
._deletetempfiles
= deletetempfiles
36 def check_version(self
):
37 if not self
._executable
:
38 raise FFmpegPostProcessorError('ffmpeg or avconv not found. Please install one.')
40 required_version
= '10-0' if self
._uses
_avconv
() else '1.0'
41 if is_outdated_version(
42 self
._versions
[self
._executable
], required_version
):
43 warning
= 'Your copy of %s is outdated, update %s to version %s or newer if you encounter any errors.' % (
44 self
._executable
, self
._executable
, required_version
)
46 self
._downloader
.report_warning(warning
)
50 programs
= ['avprobe', 'avconv', 'ffmpeg', 'ffprobe']
51 return dict((p
, get_exe_version(p
, args
=['-version'])) for p
in programs
)
54 def _executable(self
):
55 if self
._downloader
.params
.get('prefer_ffmpeg', False):
56 prefs
= ('ffmpeg', 'avconv')
58 prefs
= ('avconv', 'ffmpeg')
65 def _probe_executable(self
):
66 if self
._downloader
.params
.get('prefer_ffmpeg', False):
67 prefs
= ('ffprobe', 'avprobe')
69 prefs
= ('avprobe', 'ffprobe')
75 def _uses_avconv(self
):
76 return self
._executable
== 'avconv'
78 def run_ffmpeg_multiple_files(self
, input_paths
, out_path
, opts
):
82 for path
in input_paths
:
83 files_cmd
.extend([encodeArgument('-i'), encodeFilename(path
, True)])
84 cmd
= ([encodeFilename(self
._executable
, True), encodeArgument('-y')] +
86 + [encodeArgument(o
) for o
in opts
] +
87 [encodeFilename(self
._ffmpeg
_filename
_argument
(out_path
), True)])
89 if self
._downloader
.params
.get('verbose', False):
90 self
._downloader
.to_screen('[debug] ffmpeg command line: %s' % shell_quote(cmd
))
91 p
= subprocess
.Popen(cmd
, stdout
=subprocess
.PIPE
, stderr
=subprocess
.PIPE
)
92 stdout
, stderr
= p
.communicate()
94 stderr
= stderr
.decode('utf-8', 'replace')
95 msg
= stderr
.strip().split('\n')[-1]
96 raise FFmpegPostProcessorError(msg
)
97 if self
._deletetempfiles
:
98 for ipath
in input_paths
:
101 def run_ffmpeg(self
, path
, out_path
, opts
):
102 self
.run_ffmpeg_multiple_files([path
], out_path
, opts
)
104 def _ffmpeg_filename_argument(self
, fn
):
105 # ffmpeg broke --, see https://ffmpeg.org/trac/ffmpeg/ticket/2127 for details
106 if fn
.startswith('-'):
111 class FFmpegExtractAudioPP(FFmpegPostProcessor
):
112 def __init__(self
, downloader
=None, preferredcodec
=None, preferredquality
=None, nopostoverwrites
=False):
113 FFmpegPostProcessor
.__init
__(self
, downloader
)
114 if preferredcodec
is None:
115 preferredcodec
= 'best'
116 self
._preferredcodec
= preferredcodec
117 self
._preferredquality
= preferredquality
118 self
._nopostoverwrites
= nopostoverwrites
120 def get_audio_codec(self
, path
):
122 if not self
._probe
_executable
:
123 raise PostProcessingError('ffprobe or avprobe not found. Please install one.')
126 encodeFilename(self
._probe
_executable
, True),
127 encodeArgument('-show_streams'),
128 encodeFilename(self
._ffmpeg
_filename
_argument
(path
), True)]
129 handle
= subprocess
.Popen(cmd
, stderr
=compat_subprocess_get_DEVNULL(), stdout
=subprocess
.PIPE
)
130 output
= handle
.communicate()[0]
131 if handle
.wait() != 0:
133 except (IOError, OSError):
136 for line
in output
.decode('ascii', 'ignore').split('\n'):
137 if line
.startswith('codec_name='):
138 audio_codec
= line
.split('=')[1].strip()
139 elif line
.strip() == 'codec_type=audio' and audio_codec
is not None:
143 def run_ffmpeg(self
, path
, out_path
, codec
, more_opts
):
147 acodec_opts
= ['-acodec', codec
]
148 opts
= ['-vn'] + acodec_opts
+ more_opts
150 FFmpegPostProcessor
.run_ffmpeg(self
, path
, out_path
, opts
)
151 except FFmpegPostProcessorError
as err
:
152 raise AudioConversionError(err
.msg
)
154 def run(self
, information
):
155 path
= information
['filepath']
157 filecodec
= self
.get_audio_codec(path
)
158 if filecodec
is None:
159 raise PostProcessingError('WARNING: unable to obtain file audio codec with ffprobe')
161 uses_avconv
= self
._uses
_avconv
()
163 if self
._preferredcodec
== 'best' or self
._preferredcodec
== filecodec
or (self
._preferredcodec
== 'm4a' and filecodec
== 'aac'):
164 if filecodec
== 'aac' and self
._preferredcodec
in ['m4a', 'best']:
165 # Lossless, but in another container
168 more_opts
= ['-bsf:a' if uses_avconv
else '-absf', 'aac_adtstoasc']
169 elif filecodec
in ['aac', 'mp3', 'vorbis', 'opus']:
170 # Lossless if possible
172 extension
= filecodec
173 if filecodec
== 'aac':
174 more_opts
= ['-f', 'adts']
175 if filecodec
== 'vorbis':
179 acodec
= 'libmp3lame'
182 if self
._preferredquality
is not None:
183 if int(self
._preferredquality
) < 10:
184 more_opts
+= ['-q:a' if uses_avconv
else '-aq', self
._preferredquality
]
186 more_opts
+= ['-b:a' if uses_avconv
else '-ab', self
._preferredquality
+ 'k']
188 # We convert the audio (lossy)
189 acodec
= {'mp3': 'libmp3lame', 'aac': 'aac', 'm4a': 'aac', 'opus': 'opus', 'vorbis': 'libvorbis', 'wav': None}
[self
._preferredcodec
]
190 extension
= self
._preferredcodec
192 if self
._preferredquality
is not None:
193 # The opus codec doesn't support the -aq option
194 if int(self
._preferredquality
) < 10 and extension
!= 'opus':
195 more_opts
+= ['-q:a' if uses_avconv
else '-aq', self
._preferredquality
]
197 more_opts
+= ['-b:a' if uses_avconv
else '-ab', self
._preferredquality
+ 'k']
198 if self
._preferredcodec
== 'aac':
199 more_opts
+= ['-f', 'adts']
200 if self
._preferredcodec
== 'm4a':
201 more_opts
+= ['-bsf:a' if uses_avconv
else '-absf', 'aac_adtstoasc']
202 if self
._preferredcodec
== 'vorbis':
204 if self
._preferredcodec
== 'wav':
206 more_opts
+= ['-f', 'wav']
208 prefix
, sep
, ext
= path
.rpartition('.') # not os.path.splitext, since the latter does not work on unicode in all setups
209 new_path
= prefix
+ sep
+ extension
211 # If we download foo.mp3 and convert it to... foo.mp3, then don't delete foo.mp3, silly.
213 self
._nopostoverwrites
= True
216 if self
._nopostoverwrites
and os
.path
.exists(encodeFilename(new_path
)):
217 self
._downloader
.to_screen('[youtube] Post-process file %s exists, skipping' % new_path
)
219 self
._downloader
.to_screen('[' + self
._executable
+ '] Destination: ' + new_path
)
220 self
.run_ffmpeg(path
, new_path
, acodec
, more_opts
)
222 etype
, e
, tb
= sys
.exc_info()
223 if isinstance(e
, AudioConversionError
):
224 msg
= 'audio conversion failed: ' + e
.msg
226 msg
= 'error running ' + self
._executable
227 raise PostProcessingError(msg
)
229 # Try to update the date time for extracted audio file.
230 if information
.get('filetime') is not None:
232 os
.utime(encodeFilename(new_path
), (time
.time(), information
['filetime']))
234 self
._downloader
.report_warning('Cannot update utime of audio file')
236 information
['filepath'] = new_path
237 return self
._nopostoverwrites
, information
240 class FFmpegVideoConvertorPP(FFmpegPostProcessor
):
241 def __init__(self
, downloader
=None, preferedformat
=None):
242 super(FFmpegVideoConvertorPP
, self
).__init
__(downloader
)
243 self
._preferedformat
= preferedformat
245 def run(self
, information
):
246 path
= information
['filepath']
247 prefix
, sep
, ext
= path
.rpartition('.')
248 outpath
= prefix
+ sep
+ self
._preferedformat
249 if information
['ext'] == self
._preferedformat
:
250 self
._downloader
.to_screen('[ffmpeg] Not converting video file %s - already is in target format %s' % (path
, self
._preferedformat
))
251 return True, information
252 self
._downloader
.to_screen('[' + 'ffmpeg' + '] Converting video from %s to %s, Destination: ' % (information
['ext'], self
._preferedformat
) + outpath
)
253 self
.run_ffmpeg(path
, outpath
, [])
254 information
['filepath'] = outpath
255 information
['format'] = self
._preferedformat
256 information
['ext'] = self
._preferedformat
257 return False, information
260 class FFmpegEmbedSubtitlePP(FFmpegPostProcessor
):
261 # See http://www.loc.gov/standards/iso639-2/ISO-639-2_utf-8.txt
449 def __init__(self
, downloader
=None, subtitlesformat
='srt'):
450 super(FFmpegEmbedSubtitlePP
, self
).__init
__(downloader
)
451 self
._subformat
= subtitlesformat
454 def _conver_lang_code(cls
, code
):
455 """Convert language code from ISO 639-1 to ISO 639-2/T"""
456 return cls
._lang
_map
.get(code
[:2])
458 def run(self
, information
):
459 if information
['ext'] != 'mp4':
460 self
._downloader
.to_screen('[ffmpeg] Subtitles can only be embedded in mp4 files')
461 return True, information
462 if not information
.get('subtitles'):
463 self
._downloader
.to_screen('[ffmpeg] There aren\'t any subtitles to embed')
464 return True, information
466 sub_langs
= [key
for key
in information
['subtitles']]
467 filename
= information
['filepath']
468 input_files
= [filename
] + [subtitles_filename(filename
, lang
, self
._subformat
) for lang
in sub_langs
]
470 opts
= ['-map', '0:0', '-map', '0:1', '-c:v', 'copy', '-c:a', 'copy']
471 for (i
, lang
) in enumerate(sub_langs
):
472 opts
.extend(['-map', '%d:0' % (i
+ 1), '-c:s:%d' % i
, 'mov_text'])
473 lang_code
= self
._conver
_lang
_code
(lang
)
474 if lang_code
is not None:
475 opts
.extend(['-metadata:s:s:%d' % i
, 'language=%s' % lang_code
])
476 opts
.extend(['-f', 'mp4'])
478 temp_filename
= filename
+ '.temp'
479 self
._downloader
.to_screen('[ffmpeg] Embedding subtitles in \'%s\'' % filename
)
480 self
.run_ffmpeg_multiple_files(input_files
, temp_filename
, opts
)
481 os
.remove(encodeFilename(filename
))
482 os
.rename(encodeFilename(temp_filename
), encodeFilename(filename
))
484 return True, information
487 class FFmpegMetadataPP(FFmpegPostProcessor
):
490 if info
.get('title') is not None:
491 metadata
['title'] = info
['title']
492 if info
.get('upload_date') is not None:
493 metadata
['date'] = info
['upload_date']
494 if info
.get('uploader') is not None:
495 metadata
['artist'] = info
['uploader']
496 elif info
.get('uploader_id') is not None:
497 metadata
['artist'] = info
['uploader_id']
500 self
._downloader
.to_screen('[ffmpeg] There isn\'t any metadata to add')
503 filename
= info
['filepath']
504 temp_filename
= prepend_extension(filename
, 'temp')
506 if info
['ext'] == 'm4a':
507 options
= ['-vn', '-acodec', 'copy']
509 options
= ['-c', 'copy']
511 for (name
, value
) in metadata
.items():
512 options
.extend(['-metadata', '%s=%s' % (name
, value
)])
514 self
._downloader
.to_screen('[ffmpeg] Adding metadata to \'%s\'' % filename
)
515 self
.run_ffmpeg(filename
, temp_filename
, options
)
516 os
.remove(encodeFilename(filename
))
517 os
.rename(encodeFilename(temp_filename
), encodeFilename(filename
))
521 class FFmpegMergerPP(FFmpegPostProcessor
):
523 filename
= info
['filepath']
524 args
= ['-c', 'copy', '-map', '0:v:0', '-map', '1:a:0']
525 self
._downloader
.to_screen('[ffmpeg] Merging formats into "%s"' % filename
)
526 self
.run_ffmpeg_multiple_files(info
['__files_to_merge'], filename
, args
)
530 class FFmpegAudioFixPP(FFmpegPostProcessor
):
532 filename
= info
['filepath']
533 temp_filename
= prepend_extension(filename
, 'temp')
535 options
= ['-vn', '-acodec', 'copy']
536 self
._downloader
.to_screen('[ffmpeg] Fixing audio file "%s"' % filename
)
537 self
.run_ffmpeg(filename
, temp_filename
, options
)
539 os
.remove(encodeFilename(filename
))
540 os
.rename(encodeFilename(temp_filename
), encodeFilename(filename
))