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https://github.com/ytdl-org/youtube-dl
synced 2024-12-24 00:05:50 +01:00
--recode-video option (Closes #18)
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@ -81,6 +81,7 @@ class FileDownloader(object):
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writesubtitles: Write the video subtitles to a .srt file
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subtitleslang: Language of the subtitles to download
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test: Download only first bytes to test the downloader.
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keepvideo: Keep the video file after post-processing
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"""
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params = None
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@ -529,13 +530,27 @@ class FileDownloader(object):
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return self._download_retcode
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def post_process(self, filename, ie_info):
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"""Run the postprocessing chain on the given file."""
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"""Run all the postprocessors on the given file."""
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info = dict(ie_info)
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info['filepath'] = filename
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keep_video = None
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for pp in self._pps:
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info = pp.run(info)
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if info is None:
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break
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try:
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keep_video_wish,new_info = pp.run(info)
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if keep_video_wish is not None:
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if keep_video_wish:
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keep_video = keep_video_wish
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elif keep_video is None:
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# No clear decision yet, let IE decide
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keep_video = keep_video_wish
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except PostProcessingError as e:
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self.to_stderr(u'ERROR: ' + e.msg)
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if not keep_video and not self.params.get('keepvideo', False):
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try:
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self.to_stderr(u'Deleting original file %s (pass -k to keep)' % filename)
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os.remove(encodeFilename(filename))
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except (IOError, OSError):
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self.to_stderr(u'WARNING: Unable to remove downloaded video file')
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def _download_with_rtmpdump(self, filename, url, player_url, page_url):
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self.report_destination(filename)
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@ -45,25 +45,20 @@ class PostProcessor(object):
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one has an extra field called "filepath" that points to the
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downloaded file.
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When this method returns None, the postprocessing chain is
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stopped. However, this method may return an information
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dictionary that will be passed to the next postprocessing
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object in the chain. It can be the one it received after
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changing some fields.
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This method returns a tuple, the first element of which describes
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whether the original file should be kept (i.e. not deleted - None for
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no preference), and the second of which is the updated information.
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In addition, this method may raise a PostProcessingError
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exception that will be taken into account by the downloader
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it was called from.
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exception if post processing fails.
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"""
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return information # by default, do nothing
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return None, information # by default, keep file and do nothing
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class FFmpegPostProcessorError(BaseException):
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def __init__(self, message):
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self.message = message
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class FFmpegPostProcessorError(PostProcessingError):
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pass
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class AudioConversionError(BaseException):
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def __init__(self, message):
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self.message = message
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class AudioConversionError(PostProcessingError):
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pass
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class FFmpegPostProcessor(PostProcessor):
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def __init__(self,downloader=None):
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@ -83,7 +78,7 @@ class FFmpegPostProcessor(PostProcessor):
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def run_ffmpeg(self, path, out_path, opts):
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if not self._exes['ffmpeg'] and not self._exes['avconv']:
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raise FFmpegPostProcessorError('ffmpeg or avconv not found. Please install one.')
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raise FFmpegPostProcessorError(u'ffmpeg or avconv not found. Please install one.')
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cmd = ([self._exes['avconv'] or self._exes['ffmpeg'], '-y', '-i', encodeFilename(path)]
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+ opts +
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[encodeFilename(self._ffmpeg_filename_argument(out_path))])
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@ -91,7 +86,7 @@ class FFmpegPostProcessor(PostProcessor):
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stdout,stderr = p.communicate()
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if p.returncode != 0:
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msg = stderr.strip().split('\n')[-1]
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raise FFmpegPostProcessorError(msg)
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raise FFmpegPostProcessorError(msg.decode('utf-8', 'replace'))
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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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@ -100,13 +95,12 @@ class FFmpegPostProcessor(PostProcessor):
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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, keepvideo=False, nopostoverwrites=False):
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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._keepvideo = keepvideo
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self._nopostoverwrites = nopostoverwrites
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def get_audio_codec(self, path):
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@ -145,8 +139,7 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor):
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filecodec = self.get_audio_codec(path)
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if filecodec is None:
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self._downloader.to_stderr(u'WARNING: unable to obtain file audio codec with ffprobe')
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return None
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raise PostProcessingError(u'WARNING: unable to obtain file audio codec with ffprobe')
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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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@ -204,10 +197,10 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor):
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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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self._downloader.to_stderr(u'ERROR: audio conversion failed: ' + e.message)
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msg = u'audio conversion failed: ' + e.message
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else:
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self._downloader.to_stderr(u'ERROR: error running ' + (self._exes['avconv'] and 'avconv' or 'ffmpeg'))
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return None
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msg = u'error running ' + (self._exes['avconv'] and 'avconv' or 'ffmpeg')
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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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@ -216,29 +209,24 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor):
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except:
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self._downloader.to_stderr(u'WARNING: Cannot update utime of audio file')
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if not self._keepvideo:
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try:
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os.remove(encodeFilename(path))
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except (IOError, OSError):
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self._downloader.to_stderr(u'WARNING: Unable to remove downloaded video file')
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return None
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information['filepath'] = new_path
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return information
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return False,information
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class FFmpegVideoConvertor(FFmpegPostProcessor):
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def __init__(self, downloader=None,preferedformat=None):
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FFmpegPostProcessor.__init__(self,downloader)
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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 not self._preferedformat or information['format'] == self._preferedformat:
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return information
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self._downloader.to_screen(u'['+'ffmpeg'+'] Converting video from %s to %s, Destination: ' % (information['format'], self._preferedformat) +outpath)
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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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return information
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information['ext'] = self._preferedformat
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return False,information
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@ -175,7 +175,6 @@ def parseOpts():
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action='store', dest='subtitleslang', metavar='LANG',
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help='language of the closed captions to download (optional) use IETF language tags like \'en\'')
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verbosity.add_option('-q', '--quiet',
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action='store_true', dest='quiet', help='activates quiet mode', default=False)
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verbosity.add_option('-s', '--simulate',
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@ -251,6 +250,8 @@ def parseOpts():
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help='"best", "aac", "vorbis", "mp3", "m4a", "opus", or "wav"; best by default')
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postproc.add_option('--audio-quality', metavar='QUALITY', dest='audioquality', default='5',
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help='ffmpeg/avconv audio quality specification, insert a value between 0 (better) and 9 (worse) for VBR or a specific bitrate like 128K (default 5)')
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postproc.add_option('--recode-video', metavar='FORMAT', dest='recodevideo', default=None,
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help='Encode the video to another format if necessary (currently supported: mp4|flv|ogg|webm)')
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postproc.add_option('-k', '--keep-video', action='store_true', dest='keepvideo', default=False,
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help='keeps the video file on disk after the post-processing; the video is erased by default')
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postproc.add_option('--no-post-overwrites', action='store_true', dest='nopostoverwrites', default=False,
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@ -380,6 +381,9 @@ def _real_main():
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opts.audioquality = opts.audioquality.strip('k').strip('K')
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if not opts.audioquality.isdigit():
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parser.error(u'invalid audio quality specified')
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if opts.recodevideo is not None:
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if opts.recodevideo not in ['mp4', 'flv', 'webm', 'ogg']:
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parser.error(u'invalid video recode format specified')
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if sys.version_info < (3,):
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# In Python 2, sys.argv is a bytestring (also note http://bugs.python.org/issue2128 for Windows systems)
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@ -436,6 +440,7 @@ def _real_main():
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'prefer_free_formats': opts.prefer_free_formats,
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'verbose': opts.verbose,
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'test': opts.test,
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'keepvideo': opts.keepvideo,
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})
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if opts.verbose:
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@ -457,7 +462,9 @@ def _real_main():
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# PostProcessors
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if opts.extractaudio:
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fd.add_post_processor(FFmpegExtractAudioPP(preferredcodec=opts.audioformat, preferredquality=opts.audioquality, keepvideo=opts.keepvideo, nopostoverwrites=opts.nopostoverwrites))
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fd.add_post_processor(FFmpegExtractAudioPP(preferredcodec=opts.audioformat, preferredquality=opts.audioquality, nopostoverwrites=opts.nopostoverwrites))
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if opts.recodevideo:
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fd.add_post_processor(FFmpegVideoConvertor(preferedformat=opts.recodevideo))
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# Maybe do nothing
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if len(all_urls) < 1:
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@ -450,7 +450,8 @@ class PostProcessingError(Exception):
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This exception may be raised by PostProcessor's .run() method to
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indicate an error in the postprocessing task.
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"""
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pass
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def __init__(self, msg):
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self.msg = msg
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class MaxDownloadsReached(Exception):
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""" --max-downloads limit has been reached. """
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