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508 lines
17 KiB
508 lines
17 KiB
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 ..utils import ( |
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check_executable, |
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compat_subprocess_get_DEVNULL, |
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encodeArgument, |
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encodeFilename, |
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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._exes = self.detect_executables() |
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self._deletetempfiles = deletetempfiles |
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@staticmethod |
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def detect_executables(): |
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programs = ['avprobe', 'avconv', 'ffmpeg', 'ffprobe'] |
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return dict((program, check_executable(program, ['-version'])) for program in programs) |
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def _get_executable(self): |
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if self._downloader.params.get('prefer_ffmpeg', False): |
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return self._exes['ffmpeg'] or self._exes['avconv'] |
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else: |
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return self._exes['avconv'] or self._exes['ffmpeg'] |
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def _uses_avconv(self): |
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return self._get_executable() == self._exes['avconv'] |
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def run_ffmpeg_multiple_files(self, input_paths, out_path, opts): |
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if not self._get_executable(): |
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raise FFmpegPostProcessorError(u'ffmpeg or avconv not found. Please install one.') |
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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._get_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(u'[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(u'-'): |
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return u'./' + 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._exes['ffprobe'] and not self._exes['avprobe']: |
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raise PostProcessingError(u'ffprobe or avprobe not found. Please install one.') |
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try: |
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cmd = [ |
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self._exes['avprobe'] or self._exes['ffprobe'], |
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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(u'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(u'.') # 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(u'[youtube] Post-process file %s exists, skipping' % new_path) |
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else: |
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self._downloader.to_screen(u'[' + self._get_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 = u'audio conversion failed: ' + e.msg |
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else: |
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msg = u'error running ' + self._get_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(u'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 FFmpegVideoConvertor(FFmpegPostProcessor): |
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def __init__(self, downloader=None,preferedformat=None): |
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super(FFmpegVideoConvertor, 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(u'.') |
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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(u'[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(u'['+'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'] != u'mp4': |
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self._downloader.to_screen(u'[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(u'[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 + u'.temp' |
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self._downloader.to_screen(u'[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: |
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metadata['title'] = info['title'] |
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if info.get('upload_date') is not None: |
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metadata['date'] = info['upload_date'] |
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if info.get('uploader') is not None: |
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metadata['artist'] = info['uploader'] |
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elif info.get('uploader_id') is not None: |
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metadata['artist'] = info['uploader_id'] |
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if not metadata: |
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self._downloader.to_screen(u'[ffmpeg] There isn\'t any metadata to add') |
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return True, info |
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filename = info['filepath'] |
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temp_filename = prepend_extension(filename, 'temp') |
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if info['ext'] == u'm4a': |
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options = ['-vn', '-acodec', 'copy'] |
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else: |
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options = ['-c', 'copy'] |
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for (name, value) in metadata.items(): |
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options.extend(['-metadata', '%s=%s' % (name, value)]) |
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self._downloader.to_screen(u'[ffmpeg] Adding metadata to \'%s\'' % filename) |
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self.run_ffmpeg(filename, temp_filename, options) |
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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, info |
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class FFmpegMergerPP(FFmpegPostProcessor): |
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def run(self, info): |
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filename = info['filepath'] |
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args = ['-c', 'copy'] |
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self._downloader.to_screen(u'[ffmpeg] Merging formats into "%s"' % filename) |
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self.run_ffmpeg_multiple_files(info['__files_to_merge'], filename, args) |
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return True, info |
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class FFmpegAudioFixPP(FFmpegPostProcessor): |
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def run(self, info): |
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filename = info['filepath'] |
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temp_filename = prepend_extension(filename, 'temp') |
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options = ['-vn', '-acodec', 'copy'] |
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self._downloader.to_screen(u'[ffmpeg] Fixing audio file "%s"' % filename) |
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self.run_ffmpeg(filename, temp_filename, options) |
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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, info
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