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[postprocessor/ffmpeg] Allow embedding subtitles in m4a
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@ -813,7 +813,7 @@ def parseOpts(overrideArguments=None):
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postproc.add_option(
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'--embed-subs',
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action='store_true', dest='embedsubtitles', default=False,
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help='Embed subtitles in the video (only for mp4, webm and mkv videos)')
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help='Embed subtitles in the video or audio (only for mp4, m4a, webm and mkv files)')
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postproc.add_option(
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'--embed-thumbnail',
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action='store_true', dest='embedthumbnail', default=False,
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@ -377,8 +377,8 @@ class FFmpegVideoConvertorPP(FFmpegPostProcessor):
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class FFmpegEmbedSubtitlePP(FFmpegPostProcessor):
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def run(self, information):
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if information['ext'] not in ('mp4', 'webm', 'mkv'):
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self._downloader.to_screen('[ffmpeg] Subtitles can only be embedded in mp4, webm or mkv files')
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if information['ext'] not in ('mp4', 'm4a', 'webm', 'mkv'):
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self._downloader.to_screen('[ffmpeg] Subtitles can only be embedded in mp4, m4a, webm or mkv files')
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return [], information
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subtitles = information.get('requested_subtitles')
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if not subtitles:
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@ -417,7 +417,7 @@ class FFmpegEmbedSubtitlePP(FFmpegPostProcessor):
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# https://trac.ffmpeg.org/ticket/6016)
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'-map', '-0:d',
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]
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if information['ext'] == 'mp4':
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if information['ext'] in ('mp4', 'm4a'):
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opts += ['-c:s', 'mov_text']
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for (i, lang) in enumerate(sub_langs):
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opts.extend(['-map', '%d:0' % (i + 1)])
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