1 from __future__ import unicode_literals
2
3 import io
4 import os
5 import subprocess
6 import time
7 import re
8
9
10 from .common import AudioConversionError, PostProcessor
11
12 from ..utils import (
13 encodeArgument,
14 encodeFilename,
15 get_exe_version,
16 is_outdated_version,
17 PostProcessingError,
18 prepend_extension,
19 shell_quote,
20 subtitles_filename,
21 dfxp2srt,
22 ISO639Utils,
23 replace_extension,
24 )
25
26
27 EXT_TO_OUT_FORMATS = {
28 'aac': 'adts',
29 'flac': 'flac',
30 'm4a': 'ipod',
31 'mka': 'matroska',
32 'mkv': 'matroska',
33 'mpg': 'mpeg',
34 'ogv': 'ogg',
35 'ts': 'mpegts',
36 'wma': 'asf',
37 'wmv': 'asf',
38 }
39 ACODECS = {
40 'mp3': 'libmp3lame',
41 'aac': 'aac',
42 'flac': 'flac',
43 'm4a': 'aac',
44 'opus': 'libopus',
45 'vorbis': 'libvorbis',
46 'wav': None,
47 }
48
49
50 class FFmpegPostProcessorError(PostProcessingError):
51 pass
52
53
54 class FFmpegPostProcessor(PostProcessor):
55 def __init__(self, downloader=None):
56 PostProcessor.__init__(self, downloader)
57 self._determine_executables()
58
59 def check_version(self):
60 if not self.available:
61 raise FFmpegPostProcessorError('ffmpeg or avconv not found. Please install one.')
62
63 required_version = '10-0' if self.basename == 'avconv' else '1.0'
64 if is_outdated_version(
65 self._versions[self.basename], required_version):
66 warning = 'Your copy of %s is outdated, update %s to version %s or newer if you encounter any errors.' % (
67 self.basename, self.basename, required_version)
68 if self._downloader:
69 self._downloader.report_warning(warning)
70
71 @staticmethod
72 def get_versions(downloader=None):
73 return FFmpegPostProcessor(downloader)._versions
74
75 def _determine_executables(self):
76 programs = ['avprobe', 'avconv', 'ffmpeg', 'ffprobe']
77 prefer_ffmpeg = True
78
79 def get_ffmpeg_version(path):
80 ver = get_exe_version(path, args=['-version'])
81 if ver:
82 regexs = [
83 r'(?:\d+:)?([0-9.]+)-[0-9]+ubuntu[0-9.]+$', # Ubuntu, see [1]
84 r'n([0-9.]+)$', # Arch Linux
85 # 1. http://www.ducea.com/2006/06/17/ubuntu-package-version-naming-explanation/
86 ]
87 for regex in regexs:
88 mobj = re.match(regex, ver)
89 if mobj:
90 ver = mobj.group(1)
91 return ver
92
93 self.basename = None
94 self.probe_basename = None
95
96 self._paths = None
97 self._versions = None
98 if self._downloader:
99 prefer_ffmpeg = self._downloader.params.get('prefer_ffmpeg', True)
100 location = self._downloader.params.get('ffmpeg_location')
101 if location is not None:
102 if not os.path.exists(location):
103 self._downloader.report_warning(
104 'ffmpeg-location %s does not exist! '
105 'Continuing without avconv/ffmpeg.' % (location))
106 self._versions = {}
107 return
108 elif not os.path.isdir(location):
109 basename = os.path.splitext(os.path.basename(location))[0]
110 if basename not in programs:
111 self._downloader.report_warning(
112 'Cannot identify executable %s, its basename should be one of %s. '
113 'Continuing without avconv/ffmpeg.' %
114 (location, ', '.join(programs)))
115 self._versions = {}
116 return None
117 location = os.path.dirname(os.path.abspath(location))
118 if basename in ('ffmpeg', 'ffprobe'):
119 prefer_ffmpeg = True
120
121 self._paths = dict(
122 (p, os.path.join(location, p)) for p in programs)
123 self._versions = dict(
124 (p, get_ffmpeg_version(self._paths[p])) for p in programs)
125 if self._versions is None:
126 self._versions = dict(
127 (p, get_ffmpeg_version(p)) for p in programs)
128 self._paths = dict((p, p) for p in programs)
129
130 if prefer_ffmpeg is False:
131 prefs = ('avconv', 'ffmpeg')
132 else:
133 prefs = ('ffmpeg', 'avconv')
134 for p in prefs:
135 if self._versions[p]:
136 self.basename = p
137 break
138
139 if prefer_ffmpeg is False:
140 prefs = ('avprobe', 'ffprobe')
141 else:
142 prefs = ('ffprobe', 'avprobe')
143 for p in prefs:
144 if self._versions[p]:
145 self.probe_basename = p
146 break
147
148 @property
149 def available(self):
150 return self.basename is not None
151
152 @property
153 def executable(self):
154 return self._paths[self.basename]
155
156 @property
157 def probe_available(self):
158 return self.probe_basename is not None
159
160 @property
161 def probe_executable(self):
162 return self._paths[self.probe_basename]
163
164 def get_audio_codec(self, path):
165 if not self.probe_available and not self.available:
166 raise PostProcessingError('ffprobe/avprobe and ffmpeg/avconv not found. Please install one.')
167 try:
168 if self.probe_available:
169 cmd = [
170 encodeFilename(self.probe_executable, True),
171 encodeArgument('-show_streams')]
172 else:
173 cmd = [
174 encodeFilename(self.executable, True),
175 encodeArgument('-i')]
176 cmd.append(encodeFilename(self._ffmpeg_filename_argument(path), True))
177 if self._downloader.params.get('verbose', False):
178 self._downloader.to_screen(
179 '[debug] %s command line: %s' % (self.basename, shell_quote(cmd)))
180 handle = subprocess.Popen(
181 cmd, stderr=subprocess.PIPE,
182 stdout=subprocess.PIPE, stdin=subprocess.PIPE)
183 stdout_data, stderr_data = handle.communicate()
184 expected_ret = 0 if self.probe_available else 1
185 if handle.wait() != expected_ret:
186 return None
187 except (IOError, OSError):
188 return None
189 output = (stdout_data if self.probe_available else stderr_data).decode('ascii', 'ignore')
190 if self.probe_available:
191 audio_codec = None
192 for line in output.split('\n'):
193 if line.startswith('codec_name='):
194 audio_codec = line.split('=')[1].strip()
195 elif line.strip() == 'codec_type=audio' and audio_codec is not None:
196 return audio_codec
197 else:
198 # Stream #FILE_INDEX:STREAM_INDEX[STREAM_ID](LANGUAGE): CODEC_TYPE: CODEC_NAME
199 mobj = re.search(
200 r'Stream\s*#\d+:\d+(?:\[0x[0-9a-f]+\])?(?:\([a-z]{3}\))?:\s*Audio:\s*([0-9a-z]+)',
201 output)
202 if mobj:
203 return mobj.group(1)
204 return None
205
206 def run_ffmpeg_multiple_files(self, input_paths, out_path, opts):
207 self.check_version()
208
209 oldest_mtime = min(
210 os.stat(encodeFilename(path)).st_mtime for path in input_paths)
211
212 opts += self._configuration_args()
213
214 files_cmd = []
215 for path in input_paths:
216 files_cmd.extend([
217 encodeArgument('-i'),
218 encodeFilename(self._ffmpeg_filename_argument(path), True)
219 ])
220 cmd = [encodeFilename(self.executable, True), encodeArgument('-y')]
221 # avconv does not have repeat option
222 if self.basename == 'ffmpeg':
223 cmd += [encodeArgument('-loglevel'), encodeArgument('repeat+info')]
224 cmd += (files_cmd
225 + [encodeArgument(o) for o in opts]
226 + [encodeFilename(self._ffmpeg_filename_argument(out_path), True)])
227
228 if self._downloader.params.get('verbose', False):
229 self._downloader.to_screen('[debug] ffmpeg command line: %s' % shell_quote(cmd))
230 p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE)
231 stdout, stderr = p.communicate()
232 if p.returncode != 0:
233 stderr = stderr.decode('utf-8', 'replace')
234 msgs = stderr.strip().split('\n')
235 msg = msgs[-1]
236 if self._downloader.params.get('verbose', False):
237 self._downloader.to_screen('[debug] ' + '\n'.join(msgs[:-1]))
238 raise FFmpegPostProcessorError(msg)
239 self.try_utime(out_path, oldest_mtime, oldest_mtime)
240
241 def run_ffmpeg(self, path, out_path, opts):
242 self.run_ffmpeg_multiple_files([path], out_path, opts)
243
244 def _ffmpeg_filename_argument(self, fn):
245 # Always use 'file:' because the filename may contain ':' (ffmpeg
246 # interprets that as a protocol) or can start with '-' (-- is broken in
247 # ffmpeg, see https://ffmpeg.org/trac/ffmpeg/ticket/2127 for details)
248 # Also leave '-' intact in order not to break streaming to stdout.
249 return 'file:' + fn if fn != '-' else fn
250
251
252 class FFmpegExtractAudioPP(FFmpegPostProcessor):
253 def __init__(self, downloader=None, preferredcodec=None, preferredquality=None, nopostoverwrites=False):
254 FFmpegPostProcessor.__init__(self, downloader)
255 if preferredcodec is None:
256 preferredcodec = 'best'
257 self._preferredcodec = preferredcodec
258 self._preferredquality = preferredquality
259 self._nopostoverwrites = nopostoverwrites
260
261 def run_ffmpeg(self, path, out_path, codec, more_opts):
262 if codec is None:
263 acodec_opts = []
264 else:
265 acodec_opts = ['-acodec', codec]
266 opts = ['-vn'] + acodec_opts + more_opts
267 try:
268 FFmpegPostProcessor.run_ffmpeg(self, path, out_path, opts)
269 except FFmpegPostProcessorError as err:
270 raise AudioConversionError(err.msg)
271
272 def run(self, information):
273 path = information['filepath']
274
275 filecodec = self.get_audio_codec(path)
276 if filecodec is None:
277 raise PostProcessingError('WARNING: unable to obtain file audio codec with ffprobe')
278
279 more_opts = []
280 if self._preferredcodec == 'best' or self._preferredcodec == filecodec or (self._preferredcodec == 'm4a' and filecodec == 'aac'):
281 if filecodec == 'aac' and self._preferredcodec in ['m4a', 'best']:
282 # Lossless, but in another container
283 acodec = 'copy'
284 extension = 'm4a'
285 more_opts = ['-bsf:a', 'aac_adtstoasc']
286 elif filecodec in ['aac', 'flac', 'mp3', 'vorbis', 'opus']:
287 # Lossless if possible
288 acodec = 'copy'
289 extension = filecodec
290 if filecodec == 'aac':
291 more_opts = ['-f', 'adts']
292 if filecodec == 'vorbis':
293 extension = 'ogg'
294 else:
295 # MP3 otherwise.
296 acodec = 'libmp3lame'
297 extension = 'mp3'
298 more_opts = []
299 if self._preferredquality is not None:
300 if int(self._preferredquality) < 10:
301 more_opts += ['-q:a', self._preferredquality]
302 else:
303 more_opts += ['-b:a', self._preferredquality + 'k']
304 else:
305 # We convert the audio (lossy if codec is lossy)
306 acodec = ACODECS[self._preferredcodec]
307 extension = self._preferredcodec
308 more_opts = []
309 if self._preferredquality is not None:
310 # The opus codec doesn't support the -aq option
311 if int(self._preferredquality) < 10 and extension != 'opus':
312 more_opts += ['-q:a', self._preferredquality]
313 else:
314 more_opts += ['-b:a', self._preferredquality + 'k']
315 if self._preferredcodec == 'aac':
316 more_opts += ['-f', 'adts']
317 if self._preferredcodec == 'm4a':
318 more_opts += ['-bsf:a', 'aac_adtstoasc']
319 if self._preferredcodec == 'vorbis':
320 extension = 'ogg'
321 if self._preferredcodec == 'wav':
322 extension = 'wav'
323 more_opts += ['-f', 'wav']
324
325 prefix, sep, ext = path.rpartition('.') # not os.path.splitext, since the latter does not work on unicode in all setups
326 new_path = prefix + sep + extension
327
328 information['filepath'] = new_path
329 information['ext'] = extension
330
331 # If we download foo.mp3 and convert it to... foo.mp3, then don't delete foo.mp3, silly.
332 if (new_path == path
333 or (self._nopostoverwrites and os.path.exists(encodeFilename(new_path)))):
334 self._downloader.to_screen('[ffmpeg] Post-process file %s exists, skipping' % new_path)
335 return [], information
336
337 try:
338 self._downloader.to_screen('[ffmpeg] Destination: ' + new_path)
339 self.run_ffmpeg(path, new_path, acodec, more_opts)
340 except AudioConversionError as e:
341 raise PostProcessingError(
342 'audio conversion failed: ' + e.msg)
343 except Exception:
344 raise PostProcessingError('error running ' + self.basename)
345
346 # Try to update the date time for extracted audio file.
347 if information.get('filetime') is not None:
348 self.try_utime(
349 new_path, time.time(), information['filetime'],
350 errnote='Cannot update utime of audio file')
351
352 return [path], information
353
354
355 class FFmpegVideoConvertorPP(FFmpegPostProcessor):
356 def __init__(self, downloader=None, preferedformat=None):
357 super(FFmpegVideoConvertorPP, self).__init__(downloader)
358 self._preferedformat = preferedformat
359
360 def run(self, information):
361 path = information['filepath']
362 if information['ext'] == self._preferedformat:
363 self._downloader.to_screen('[ffmpeg] Not converting video file %s - already is in target format %s' % (path, self._preferedformat))
364 return [], information
365 options = []
366 if self._preferedformat == 'avi':
367 options.extend(['-c:v', 'libxvid', '-vtag', 'XVID'])
368 prefix, sep, ext = path.rpartition('.')
369 outpath = prefix + sep + self._preferedformat
370 self._downloader.to_screen('[' + 'ffmpeg' + '] Converting video from %s to %s, Destination: ' % (information['ext'], self._preferedformat) + outpath)
371 self.run_ffmpeg(path, outpath, options)
372 information['filepath'] = outpath
373 information['format'] = self._preferedformat
374 information['ext'] = self._preferedformat
375 return [path], information
376
377
378 class FFmpegEmbedSubtitlePP(FFmpegPostProcessor):
379 def run(self, information):
380 if information['ext'] not in ('mp4', 'webm', 'mkv'):
381 self._downloader.to_screen('[ffmpeg] Subtitles can only be embedded in mp4, webm or mkv files')
382 return [], information
383 subtitles = information.get('requested_subtitles')
384 if not subtitles:
385 self._downloader.to_screen('[ffmpeg] There aren\'t any subtitles to embed')
386 return [], information
387
388 filename = information['filepath']
389
390 ext = information['ext']
391 sub_langs = []
392 sub_filenames = []
393 webm_vtt_warn = False
394
395 for lang, sub_info in subtitles.items():
396 sub_ext = sub_info['ext']
397 if ext != 'webm' or ext == 'webm' and sub_ext == 'vtt':
398 sub_langs.append(lang)
399 sub_filenames.append(subtitles_filename(filename, lang, sub_ext, ext))
400 else:
401 if not webm_vtt_warn and ext == 'webm' and sub_ext != 'vtt':
402 webm_vtt_warn = True
403 self._downloader.to_screen('[ffmpeg] Only WebVTT subtitles can be embedded in webm files')
404
405 if not sub_langs:
406 return [], information
407
408 input_files = [filename] + sub_filenames
409
410 opts = [
411 '-map', '0',
412 '-c', 'copy',
413 # Don't copy the existing subtitles, we may be running the
414 # postprocessor a second time
415 '-map', '-0:s',
416 # Don't copy Apple TV chapters track, bin_data (see #19042, #19024,
417 # https://trac.ffmpeg.org/ticket/6016)
418 '-map', '-0:d',
419 ]
420 if information['ext'] == 'mp4':
421 opts += ['-c:s', 'mov_text']
422 for (i, lang) in enumerate(sub_langs):
423 opts.extend(['-map', '%d:0' % (i + 1)])
424 lang_code = ISO639Utils.short2long(lang) or lang
425 opts.extend(['-metadata:s:s:%d' % i, 'language=%s' % lang_code])
426
427 temp_filename = prepend_extension(filename, 'temp')
428 self._downloader.to_screen('[ffmpeg] Embedding subtitles in \'%s\'' % filename)
429 self.run_ffmpeg_multiple_files(input_files, temp_filename, opts)
430 os.remove(encodeFilename(filename))
431 os.rename(encodeFilename(temp_filename), encodeFilename(filename))
432
433 return sub_filenames, information
434
435
436 class FFmpegMetadataPP(FFmpegPostProcessor):
437 def run(self, info):
438 metadata = {}
439
440 def add(meta_list, info_list=None):
441 if not info_list:
442 info_list = meta_list
443 if not isinstance(meta_list, (list, tuple)):
444 meta_list = (meta_list,)
445 if not isinstance(info_list, (list, tuple)):
446 info_list = (info_list,)
447 for info_f in info_list:
448 if info.get(info_f) is not None:
449 for meta_f in meta_list:
450 metadata[meta_f] = info[info_f]
451 break
452
453 # See [1-4] for some info on media metadata/metadata supported
454 # by ffmpeg.
455 # 1. https://kdenlive.org/en/project/adding-meta-data-to-mp4-video/
456 # 2. https://wiki.multimedia.cx/index.php/FFmpeg_Metadata
457 # 3. https://kodi.wiki/view/Video_file_tagging
458 # 4. http://atomicparsley.sourceforge.net/mpeg-4files.html
459
460 add('title', ('track', 'title'))
461 add('date', 'upload_date')
462 add(('description', 'comment'), 'description')
463 add('purl', 'webpage_url')
464 add('track', 'track_number')
465 add('artist', ('artist', 'creator', 'uploader', 'uploader_id'))
466 add('genre')
467 add('album')
468 add('album_artist')
469 add('disc', 'disc_number')
470 add('show', 'series')
471 add('season_number')
472 add('episode_id', ('episode', 'episode_id'))
473 add('episode_sort', 'episode_number')
474
475 if not metadata:
476 self._downloader.to_screen('[ffmpeg] There isn\'t any metadata to add')
477 return [], info
478
479 filename = info['filepath']
480 temp_filename = prepend_extension(filename, 'temp')
481 in_filenames = [filename]
482 options = []
483
484 if info['ext'] == 'm4a':
485 options.extend(['-vn', '-acodec', 'copy'])
486 else:
487 options.extend(['-c', 'copy'])
488
489 for (name, value) in metadata.items():
490 options.extend(['-metadata', '%s=%s' % (name, value)])
491
492 chapters = info.get('chapters', [])
493 if chapters:
494 metadata_filename = replace_extension(filename, 'meta')
495 with io.open(metadata_filename, 'wt', encoding='utf-8') as f:
496 def ffmpeg_escape(text):
497 return re.sub(r'(=|;|#|\\|\n)', r'\\\1', text)
498
499 metadata_file_content = ';FFMETADATA1\n'
500 for chapter in chapters:
501 metadata_file_content += '[CHAPTER]\nTIMEBASE=1/1000\n'
502 metadata_file_content += 'START=%d\n' % (chapter['start_time'] * 1000)
503 metadata_file_content += 'END=%d\n' % (chapter['end_time'] * 1000)
504 chapter_title = chapter.get('title')
505 if chapter_title:
506 metadata_file_content += 'title=%s\n' % ffmpeg_escape(chapter_title)
507 f.write(metadata_file_content)
508 in_filenames.append(metadata_filename)
509 options.extend(['-map_metadata', '1'])
510
511 self._downloader.to_screen('[ffmpeg] Adding metadata to \'%s\'' % filename)
512 self.run_ffmpeg_multiple_files(in_filenames, temp_filename, options)
513 if chapters:
514 os.remove(metadata_filename)
515 os.remove(encodeFilename(filename))
516 os.rename(encodeFilename(temp_filename), encodeFilename(filename))
517 return [], info
518
519
520 class FFmpegMergerPP(FFmpegPostProcessor):
521 def run(self, info):
522 filename = info['filepath']
523 temp_filename = prepend_extension(filename, 'temp')
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'], temp_filename, args)
527 os.rename(encodeFilename(temp_filename), encodeFilename(filename))
528 return info['__files_to_merge'], info
529
530 def can_merge(self):
531 # TODO: figure out merge-capable ffmpeg version
532 if self.basename != 'avconv':
533 return True
534
535 required_version = '10-0'
536 if is_outdated_version(
537 self._versions[self.basename], required_version):
538 warning = ('Your copy of %s is outdated and unable to properly mux separate video and audio files, '
539 'youtube-dl will download single file media. '
540 'Update %s to version %s or newer to fix this.') % (
541 self.basename, self.basename, required_version)
542 if self._downloader:
543 self._downloader.report_warning(warning)
544 return False
545 return True
546
547
548 class FFmpegFixupStretchedPP(FFmpegPostProcessor):
549 def run(self, info):
550 stretched_ratio = info.get('stretched_ratio')
551 if stretched_ratio is None or stretched_ratio == 1:
552 return [], info
553
554 filename = info['filepath']
555 temp_filename = prepend_extension(filename, 'temp')
556
557 options = ['-c', 'copy', '-aspect', '%f' % stretched_ratio]
558 self._downloader.to_screen('[ffmpeg] Fixing aspect ratio in "%s"' % filename)
559 self.run_ffmpeg(filename, temp_filename, options)
560
561 os.remove(encodeFilename(filename))
562 os.rename(encodeFilename(temp_filename), encodeFilename(filename))
563
564 return [], info
565
566
567 class FFmpegFixupM4aPP(FFmpegPostProcessor):
568 def run(self, info):
569 if info.get('container') != 'm4a_dash':
570 return [], info
571
572 filename = info['filepath']
573 temp_filename = prepend_extension(filename, 'temp')
574
575 options = ['-c', 'copy', '-f', 'mp4']
576 self._downloader.to_screen('[ffmpeg] Correcting container in "%s"' % filename)
577 self.run_ffmpeg(filename, temp_filename, options)
578
579 os.remove(encodeFilename(filename))
580 os.rename(encodeFilename(temp_filename), encodeFilename(filename))
581
582 return [], info
583
584
585 class FFmpegFixupM3u8PP(FFmpegPostProcessor):
586 def run(self, info):
587 filename = info['filepath']
588 if self.get_audio_codec(filename) == 'aac':
589 temp_filename = prepend_extension(filename, 'temp')
590
591 options = ['-c', 'copy', '-f', 'mp4', '-bsf:a', 'aac_adtstoasc']
592 self._downloader.to_screen('[ffmpeg] Fixing malformed AAC bitstream in "%s"' % filename)
593 self.run_ffmpeg(filename, temp_filename, options)
594
595 os.remove(encodeFilename(filename))
596 os.rename(encodeFilename(temp_filename), encodeFilename(filename))
597 return [], info
598
599
600 class FFmpegSubtitlesConvertorPP(FFmpegPostProcessor):
601 def __init__(self, downloader=None, format=None):
602 super(FFmpegSubtitlesConvertorPP, self).__init__(downloader)
603 self.format = format
604
605 def run(self, info):
606 subs = info.get('requested_subtitles')
607 filename = info['filepath']
608 new_ext = self.format
609 new_format = new_ext
610 if new_format == 'vtt':
611 new_format = 'webvtt'
612 if subs is None:
613 self._downloader.to_screen('[ffmpeg] There aren\'t any subtitles to convert')
614 return [], info
615 self._downloader.to_screen('[ffmpeg] Converting subtitles')
616 sub_filenames = []
617 for lang, sub in subs.items():
618 ext = sub['ext']
619 if ext == new_ext:
620 self._downloader.to_screen(
621 '[ffmpeg] Subtitle file for %s is already in the requested format' % new_ext)
622 continue
623 old_file = subtitles_filename(filename, lang, ext, info.get('ext'))
624 sub_filenames.append(old_file)
625 new_file = subtitles_filename(filename, lang, new_ext, info.get('ext'))
626
627 if ext in ('dfxp', 'ttml', 'tt'):
628 self._downloader.report_warning(
629 'You have requested to convert dfxp (TTML) subtitles into another format, '
630 'which results in style information loss')
631
632 dfxp_file = old_file
633 srt_file = subtitles_filename(filename, lang, 'srt', info.get('ext'))
634
635 with open(dfxp_file, 'rb') as f:
636 srt_data = dfxp2srt(f.read())
637
638 with io.open(srt_file, 'wt', encoding='utf-8') as f:
639 f.write(srt_data)
640 old_file = srt_file
641
642 subs[lang] = {
643 'ext': 'srt',
644 'data': srt_data
645 }
646
647 if new_ext == 'srt':
648 continue
649 else:
650 sub_filenames.append(srt_file)
651
652 self.run_ffmpeg(old_file, new_file, ['-f', new_format])
653
654 with io.open(new_file, 'rt', encoding='utf-8') as f:
655 subs[lang] = {
656 'ext': new_ext,
657 'data': f.read(),
658 }
659
660 return sub_filenames, info
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