[downloader/external] enable piping for FFmpegFD(closes #2124)
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@ -225,7 +225,7 @@ class FFmpegFD(ExternalFD):
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args += ['-i', url, '-c', 'copy']
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if protocol == 'm3u8':
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if self.params.get('hls_use_mpegts', False):
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if self.params.get('hls_use_mpegts', False) or tmpfilename == '-':
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args += ['-f', 'mpegts']
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else:
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args += ['-f', 'mp4', '-bsf:a', 'aac_adtstoasc']
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@ -235,6 +235,9 @@ class FFmpegFD(ExternalFD):
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args += ['-f', EXT_TO_OUT_FORMATS.get(info_dict['ext'], info_dict['ext'])]
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args = [encodeArgument(opt) for opt in args]
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if tmpfilename == '-':
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args.append('pipe:1')
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else:
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args.append(encodeFilename(ffpp._ffmpeg_filename_argument(tmpfilename), True))
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self._debug_cmd(args)
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