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[cleanup] Refactor ffmpeg convertors

This commit is contained in:
pukkandan 2021-05-22 13:54:12 +05:30
parent 857f63136d
commit 81a23040eb
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GPG Key ID: 0F00D95A001F4698
4 changed files with 64 additions and 46 deletions
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30
yt_dlp/__init__.py
View File

@ -31,7 +31,6 @@ from .utils import (
preferredencoding,
read_batch_urls,
RejectedVideoReached,
REMUX_EXTENSIONS,
render_table,
SameFileError,
setproctitle,
@ -45,6 +44,13 @@ from .downloader import (
from .extractor import gen_extractors, list_extractors
from .extractor.common import InfoExtractor
from .extractor.adobepass import MSO_INFO
from .postprocessor.ffmpeg import (
FFmpegExtractAudioPP,
FFmpegSubtitlesConvertorPP,
FFmpegThumbnailsConvertorPP,
FFmpegVideoConvertorPP,
FFmpegVideoRemuxerPP,
)
from .postprocessor.metadatafromfield import MetadataFromFieldPP
from .YoutubeDL import YoutubeDL
@ -209,25 +215,25 @@ def _real_main(argv=None):
if opts.playlistend not in (-1, None) and opts.playlistend < opts.playliststart:
raise ValueError('Playlist end must be greater than playlist start')
if opts.extractaudio:
if opts.audioformat not in ['best', 'aac', 'flac', 'mp3', 'm4a', 'opus', 'vorbis', 'wav']:
if opts.audioformat not in ['best'] + list(FFmpegExtractAudioPP.SUPPORTED_EXTS):
parser.error('invalid audio format specified')
if opts.audioquality:
opts.audioquality = opts.audioquality.strip('k').strip('K')
if not opts.audioquality.isdigit():
parser.error('invalid audio quality specified')
if opts.recodevideo is not None:
if opts.recodevideo not in REMUX_EXTENSIONS:
parser.error('invalid video recode format specified')
opts.recodevideo = opts.recodevideo.replace(' ', '')
if not re.match(FFmpegVideoConvertorPP.FORMAT_RE, opts.recodevideo):
parser.error('invalid video remux format specified')
if opts.remuxvideo is not None:
opts.remuxvideo = opts.remuxvideo.replace(' ', '')
remux_regex = r'{0}(?:/{0})*$'.format(r'(?:\w+>)?(?:%s)' % '|'.join(REMUX_EXTENSIONS))
if not re.match(remux_regex, opts.remuxvideo):
if not re.match(FFmpegVideoRemuxerPP.FORMAT_RE, opts.remuxvideo):
parser.error('invalid video remux format specified')
if opts.convertsubtitles is not None:
if opts.convertsubtitles not in ('srt', 'vtt', 'ass', 'lrc'):
if opts.convertsubtitles not in FFmpegSubtitlesConvertorPP.SUPPORTED_EXTS:
parser.error('invalid subtitle format specified')
if opts.convertthumbnails is not None:
if opts.convertthumbnails not in ('jpg', 'png'):
if opts.convertthumbnails not in FFmpegThumbnailsConvertorPP.SUPPORTED_EXTS:
parser.error('invalid thumbnail format specified')
if opts.date is not None:
@ -480,10 +486,10 @@ def _real_main(argv=None):
opts.postprocessor_args['default'] = opts.postprocessor_args['default-compat']
final_ext = (
opts.recodevideo
or (opts.remuxvideo in REMUX_EXTENSIONS) and opts.remuxvideo
or (opts.extractaudio and opts.audioformat != 'best') and opts.audioformat
or None)
opts.recodevideo if opts.recodevideo in FFmpegVideoConvertorPP.SUPPORTED_EXTS
else opts.remuxvideo if opts.remuxvideo in FFmpegVideoRemuxerPP.SUPPORTED_EXTS
else opts.audioformat if (opts.extractaudio and opts.audioformat != 'best')
else None)
match_filter = (
None if opts.match_filter is None

29
yt_dlp/options.py
View File

@ -5,7 +5,6 @@ import optparse
import re
import sys
from .downloader.external import list_external_downloaders
from .compat import (
compat_expanduser,
compat_get_terminal_size,
@ -18,11 +17,18 @@ from .utils import (
get_executable_path,
OUTTMPL_TYPES,
preferredencoding,
REMUX_EXTENSIONS,
write_string,
)
from .version import __version__
from .downloader.external import list_external_downloaders
from .postprocessor.ffmpeg import (
FFmpegExtractAudioPP,
FFmpegSubtitlesConvertorPP,
FFmpegThumbnailsConvertorPP,
FFmpegVideoRemuxerPP,
)
def _hide_login_info(opts):
PRIVATE_OPTS = set(['-p', '--password', '-u', '--username', '--video-password', '--ap-password', '--ap-username'])
@ -1123,7 +1129,9 @@ def parseOpts(overrideArguments=None):
help='Convert video files to audio-only files (requires ffmpeg and ffprobe)')
postproc.add_option(
'--audio-format', metavar='FORMAT', dest='audioformat', default='best',
help='Specify audio format: "best", "aac", "flac", "mp3", "m4a", "opus", "vorbis", or "wav"; "%default" by default; No effect without -x')
help=(
'Specify audio format to convert the audio to when -x is used. Currently supported formats are: '
'best (default) or one of %s' % '|'.join(FFmpegExtractAudioPP.SUPPORTED_EXTS)))
postproc.add_option(
'--audio-quality', metavar='QUALITY',
dest='audioquality', default='5',
@ -1134,15 +1142,14 @@ def parseOpts(overrideArguments=None):
help=(
'Remux the video into another container if necessary (currently supported: %s). '
'If target container does not support the video/audio codec, remuxing will fail. '
'You can specify multiple rules; eg. "aac>m4a/mov>mp4/mkv" will remux aac to m4a, mov to mp4 '
'and anything else to mkv.' % '|'.join(REMUX_EXTENSIONS)))
'You can specify multiple rules; Eg. "aac>m4a/mov>mp4/mkv" will remux aac to m4a, mov to mp4 '
'and anything else to mkv.' % '|'.join(FFmpegVideoRemuxerPP.SUPPORTED_EXTS)))
postproc.add_option(
'--recode-video',
metavar='FORMAT', dest='recodevideo', default=None,
help=(
'Re-encode the video into another format if re-encoding is necessary. '
'You can specify multiple rules similar to --remux-video. '
'The supported formats are also the same as --remux-video'))
'The syntax and supported formats are the same as --remux-video'))
postproc.add_option(
'--postprocessor-args', '--ppa',
metavar='NAME:ARGS', dest='postprocessor_args', default={}, type='str',
@ -1250,11 +1257,15 @@ def parseOpts(overrideArguments=None):
postproc.add_option(
'--convert-subs', '--convert-sub', '--convert-subtitles',
metavar='FORMAT', dest='convertsubtitles', default=None,
help='Convert the subtitles to another format (currently supported: srt|ass|vtt|lrc) (Alias: --convert-subtitles)')
help=(
'Convert the subtitles to another format (currently supported: %s) '
'(Alias: --convert-subtitles)' % '|'.join(FFmpegSubtitlesConvertorPP.SUPPORTED_EXTS)))
postproc.add_option(
'--convert-thumbnails',
metavar='FORMAT', dest='convertthumbnails', default=None,
help='Convert the thumbnails to another format (currently supported: jpg, png)')
help=(
'Convert the thumbnails to another format '
'(currently supported: %s) ' % '|'.join(FFmpegThumbnailsConvertorPP.SUPPORTED_EXTS)))
postproc.add_option(
'--split-chapters', '--split-tracks',
dest='split_chapters', action='store_true', default=False,

49
yt_dlp/postprocessor/ffmpeg.py
View File

@ -290,13 +290,12 @@ class FFmpegPostProcessor(PostProcessor):
class FFmpegExtractAudioPP(FFmpegPostProcessor):
COMMON_AUDIO_EXTENSIONS = ('wav', 'flac', 'm4a', 'aiff', 'mp3', 'ogg', 'mka', 'opus', 'wma')
COMMON_AUDIO_EXTS = ('wav', 'flac', 'm4a', 'aiff', 'mp3', 'ogg', 'mka', 'opus', 'wma')
SUPPORTED_EXTS = ('best', 'aac', 'flac', 'mp3', 'm4a', 'opus', 'vorbis', 'wav')
def __init__(self, downloader=None, preferredcodec=None, preferredquality=None, nopostoverwrites=False):
FFmpegPostProcessor.__init__(self, downloader)
if preferredcodec is None:
preferredcodec = 'best'
self._preferredcodec = preferredcodec
self._preferredcodec = preferredcodec or 'best'
self._preferredquality = preferredquality
self._nopostoverwrites = nopostoverwrites
@ -315,7 +314,7 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor):
path = information['filepath']
orig_ext = information['ext']
if self._preferredcodec == 'best' and orig_ext in self.COMMON_AUDIO_EXTENSIONS:
if self._preferredcodec == 'best' and orig_ext in self.COMMON_AUDIO_EXTS:
self.to_screen('Skipping audio extraction since the file is already in a common audio format')
return [], information
@ -400,6 +399,8 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor):
class FFmpegVideoConvertorPP(FFmpegPostProcessor):
SUPPORTED_EXTS = ('mp4', 'mkv', 'flv', 'webm', 'mov', 'avi', 'mp3', 'mka', 'm4a', 'ogg', 'opus')
FORMAT_RE = re.compile(r'{0}(?:/{0})*$'.format(r'(?:\w+>)?(?:%s)' % '|'.join(SUPPORTED_EXTS)))
_action = 'converting'
def __init__(self, downloader=None, preferedformat=None):
@ -419,14 +420,14 @@ class FFmpegVideoConvertorPP(FFmpegPostProcessor):
return []
def run(self, information):
path = information['filepath']
target_ext = self._target_ext(information['ext'].lower())
path, source_ext = information['filepath'], information['ext'].lower()
target_ext = self._target_ext(source_ext)
_skip_msg = (
'could not find a mapping for %s' if not target_ext
else 'already is in target format %s' if source_ext == target_ext
else None)
if _skip_msg:
self.to_screen('Not %s media file %s; %s' % (self._action, path, _skip_msg % source_ext))
self.to_screen('Not %s media file "%s"; %s' % (self._action, path, _skip_msg % source_ext))
return [], information
prefix, sep, oldext = path.rpartition('.')
@ -708,6 +709,8 @@ class FFmpegFixupM3u8PP(FFmpegPostProcessor):
class FFmpegSubtitlesConvertorPP(FFmpegPostProcessor):
SUPPORTED_EXTS = ('srt', 'vtt', 'ass', 'lrc')
def __init__(self, downloader=None, format=None):
super(FFmpegSubtitlesConvertorPP, self).__init__(downloader)
self.format = format
@ -816,6 +819,8 @@ class FFmpegSplitChaptersPP(FFmpegPostProcessor):
class FFmpegThumbnailsConvertorPP(FFmpegPostProcessor):
SUPPORTED_EXTS = ('jpg', 'png')
def __init__(self, downloader=None, format=None):
super(FFmpegThumbnailsConvertorPP, self).__init__(downloader)
self.format = format
@ -841,31 +846,29 @@ class FFmpegThumbnailsConvertorPP(FFmpegPostProcessor):
info['__files_to_move'][webp_filename] = replace_extension(
info['__files_to_move'].pop(thumbnail_filename), 'webp')
def convert_thumbnail(self, thumbnail_filename, ext):
if ext == 'jpg':
format_name = 'JPEG'
opts = ['-bsf:v', 'mjpeg2jpeg']
elif ext == 'png':
format_name = 'PNG'
opts = []
else:
raise FFmpegPostProcessorError('Only conversion to either jpg or png is currently supported')
@staticmethod
def _options(target_ext):
if target_ext == 'jpg':
return ['-bsf:v', 'mjpeg2jpeg']
return []
def convert_thumbnail(self, thumbnail_filename, target_ext):
# NB: % is supposed to be escaped with %% but this does not work
# for input files so working around with standard substitution
escaped_thumbnail_filename = thumbnail_filename.replace('%', '#')
os.rename(encodeFilename(thumbnail_filename), encodeFilename(escaped_thumbnail_filename))
escaped_thumbnail_conv_filename = replace_extension(escaped_thumbnail_filename, ext)
self.to_screen('Converting thumbnail "%s" to %s' % (escaped_thumbnail_filename, format_name))
self.run_ffmpeg(escaped_thumbnail_filename, escaped_thumbnail_conv_filename, opts)
thumbnail_conv_filename = replace_extension(thumbnail_filename, ext)
escaped_thumbnail_conv_filename = replace_extension(escaped_thumbnail_filename, target_ext)
self.to_screen('Converting thumbnail "%s" to %s' % (escaped_thumbnail_filename, target_ext))
self.run_ffmpeg(escaped_thumbnail_filename, escaped_thumbnail_conv_filename, self._options(target_ext))
# Rename back to unescaped
thumbnail_conv_filename = replace_extension(thumbnail_filename, target_ext)
os.rename(encodeFilename(escaped_thumbnail_filename), encodeFilename(thumbnail_filename))
os.rename(encodeFilename(escaped_thumbnail_conv_filename), encodeFilename(thumbnail_conv_filename))
return thumbnail_conv_filename
def run(self, info):
if self.format not in ('jpg', 'png'):
raise FFmpegPostProcessorError('Only conversion to either jpg or png is currently supported')
files_to_delete = []
has_thumbnail = False

2
yt_dlp/utils.py
View File

@ -1716,8 +1716,6 @@ KNOWN_EXTENSIONS = (
'wav',
'f4f', 'f4m', 'm3u8', 'smil')
REMUX_EXTENSIONS = ('mp4', 'mkv', 'flv', 'webm', 'mov', 'avi', 'mp3', 'mka', 'm4a', 'ogg', 'opus')
# needed for sanitizing filenames in restricted mode
ACCENT_CHARS = dict(zip('ÂÃÄÀÁÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖŐØŒÙÚÛÜŰÝÞßàáâãäåæçèéêëìíîïðñòóôõöőøœùúûüűýþÿ',
itertools.chain('AAAAAA', ['AE'], 'CEEEEIIIIDNOOOOOOO', ['OE'], 'UUUUUY', ['TH', 'ss'],