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Determine merge container better (See desc) (#1482)
* Determine the container early. Closes #4069 * Use codecs instead of just file extensions * Obey `--prefer-free-formats` * Allow fallbacks in `--merge-output` Authored by: pukkandan, selfisekai
This commit is contained in:
Lauren N. Liberda
GitHub
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@ -858,10 +858,10 @@ ## Video Format Options:
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downloadable
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-F, --list-formats List available formats of each video.
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Simulate unless --no-simulate is used
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--merge-output-format FORMAT Container to use when merging formats (e.g.
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bestvideo+bestaudio). Ignored if no merge is
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required. (currently supported: avi, flv,
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mkv, mov, mp4, webm)
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--merge-output-format FORMAT Containers that may be used when merging
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formats, separated by "/" (Eg: "mp4/mkv").
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Ignored if no merge is required. (currently
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supported: avi, flv, mkv, mov, mp4, webm)
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## Subtitle Options:
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--write-subs Write subtitle file
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@ -53,6 +53,7 @@
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fix_xml_ampersands,
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float_or_none,
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format_bytes,
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get_compatible_ext,
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get_element_by_attribute,
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get_element_by_class,
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get_element_html_by_attribute,
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@ -1843,6 +1844,31 @@ def test_determine_file_encoding(self):
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self.assertEqual(determine_file_encoding('# coding: utf-32-be'.encode('utf-32-be')), ('utf-32-be', 0))
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self.assertEqual(determine_file_encoding('# coding: utf-16-le'.encode('utf-16-le')), ('utf-16-le', 0))
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def test_get_compatible_ext(self):
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self.assertEqual(get_compatible_ext(
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vcodecs=[None], acodecs=[None, None], vexts=['mp4'], aexts=['m4a', 'm4a']), 'mkv')
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self.assertEqual(get_compatible_ext(
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vcodecs=[None], acodecs=[None], vexts=['flv'], aexts=['flv']), 'flv')
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self.assertEqual(get_compatible_ext(
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vcodecs=[None], acodecs=[None], vexts=['mp4'], aexts=['m4a']), 'mp4')
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self.assertEqual(get_compatible_ext(
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vcodecs=[None], acodecs=[None], vexts=['mp4'], aexts=['webm']), 'mkv')
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self.assertEqual(get_compatible_ext(
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vcodecs=[None], acodecs=[None], vexts=['webm'], aexts=['m4a']), 'mkv')
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self.assertEqual(get_compatible_ext(
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vcodecs=[None], acodecs=[None], vexts=['webm'], aexts=['webm']), 'webm')
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self.assertEqual(get_compatible_ext(
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vcodecs=['h264'], acodecs=['mp4a'], vexts=['mov'], aexts=['m4a']), 'mp4')
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self.assertEqual(get_compatible_ext(
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vcodecs=['av01.0.12M.08'], acodecs=['opus'], vexts=['mp4'], aexts=['webm']), 'webm')
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self.assertEqual(get_compatible_ext(
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vcodecs=['vp9'], acodecs=['opus'], vexts=['webm'], aexts=['webm'], preferences=['flv', 'mp4']), 'mp4')
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self.assertEqual(get_compatible_ext(
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vcodecs=['av1'], acodecs=['mp4a'], vexts=['webm'], aexts=['m4a'], preferences=('webm', 'mkv')), 'mkv')
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if __name__ == '__main__':
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unittest.main()
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@ -102,6 +102,7 @@
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format_decimal_suffix,
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format_field,
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formatSeconds,
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get_compatible_ext,
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get_domain,
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int_or_none,
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iri_to_uri,
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@ -134,6 +135,7 @@
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timetuple_from_msec,
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to_high_limit_path,
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traverse_obj,
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try_call,
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try_get,
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url_basename,
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variadic,
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@ -372,7 +374,7 @@ class YoutubeDL:
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Progress hooks are guaranteed to be called at least twice
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(with status "started" and "finished") if the processing is successful.
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merge_output_format: Extension to use when merging formats.
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merge_output_format: "/" separated list of extensions to use when merging formats.
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final_ext: Expected final extension; used to detect when the file was
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already downloaded and converted
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fixup: Automatically correct known faults of the file.
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@ -2088,14 +2090,13 @@ def _merge(formats_pair):
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the_only_video = video_fmts[0] if len(video_fmts) == 1 else None
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the_only_audio = audio_fmts[0] if len(audio_fmts) == 1 else None
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output_ext = self.params.get('merge_output_format')
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if not output_ext:
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if the_only_video:
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output_ext = the_only_video['ext']
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elif the_only_audio and not video_fmts:
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output_ext = the_only_audio['ext']
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else:
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output_ext = 'mkv'
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output_ext = get_compatible_ext(
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vcodecs=[f.get('vcodec') for f in video_fmts],
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acodecs=[f.get('acodec') for f in audio_fmts],
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vexts=[f['ext'] for f in video_fmts],
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aexts=[f['ext'] for f in audio_fmts],
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preferences=(try_call(lambda: self.params['merge_output_format'].split('/'))
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or self.params.get('prefer_free_formats') and ('webm', 'mkv')))
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filtered = lambda *keys: filter(None, (traverse_obj(fmt, *keys) for fmt in formats_info))
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@ -3067,33 +3068,9 @@ def existing_video_file(*filepaths):
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return
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if info_dict.get('requested_formats') is not None:
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def compatible_formats(formats):
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# TODO: some formats actually allow this (mkv, webm, ogg, mp4), but not all of them.
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video_formats = [format for format in formats if format.get('vcodec') != 'none']
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audio_formats = [format for format in formats if format.get('acodec') != 'none']
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if len(video_formats) > 2 or len(audio_formats) > 2:
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return False
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# Check extension
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exts = {format.get('ext') for format in formats}
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COMPATIBLE_EXTS = (
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{'mp3', 'mp4', 'm4a', 'm4p', 'm4b', 'm4r', 'm4v', 'ismv', 'isma'},
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{'webm'},
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)
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for ext_sets in COMPATIBLE_EXTS:
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if ext_sets.issuperset(exts):
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return True
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# TODO: Check acodec/vcodec
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return False
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requested_formats = info_dict['requested_formats']
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old_ext = info_dict['ext']
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if self.params.get('merge_output_format') is None:
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if not compatible_formats(requested_formats):
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info_dict['ext'] = 'mkv'
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self.report_warning(
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'Requested formats are incompatible for merge and will be merged into mkv')
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if (info_dict['ext'] == 'webm'
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and info_dict.get('thumbnails')
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# check with type instead of pp_key, __name__, or isinstance
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@ -228,7 +228,8 @@ def validate_minmax(min_val, max_val, min_name, max_name=None):
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validate_regex('format sorting', f, InfoExtractor.FormatSort.regex)
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# Postprocessor formats
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validate_in('merge output format', opts.merge_output_format, FFmpegMergerPP.SUPPORTED_EXTS)
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validate_regex('merge output format', opts.merge_output_format,
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r'({0})(/({0}))*'.format('|'.join(map(re.escape, FFmpegMergerPP.SUPPORTED_EXTS))))
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validate_regex('audio format', opts.audioformat, FFmpegExtractAudioPP.FORMAT_RE)
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validate_in('subtitle format', opts.convertsubtitles, FFmpegSubtitlesConvertorPP.SUPPORTED_EXTS)
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validate_regex('thumbnail format', opts.convertthumbnails, FFmpegThumbnailsConvertorPP.FORMAT_RE)
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@ -782,7 +782,8 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
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'--merge-output-format',
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action='store', dest='merge_output_format', metavar='FORMAT', default=None,
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help=(
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'Container to use when merging formats (e.g. bestvideo+bestaudio). Ignored if no merge is required. '
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'Containers that may be used when merging formats, separated by "/" (Eg: "mp4/mkv"). '
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'Ignored if no merge is required. '
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f'(currently supported: {", ".join(sorted(FFmpegMergerPP.SUPPORTED_EXTS))})'))
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video_format.add_option(
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'--allow-unplayable-formats',
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@ -3456,6 +3456,46 @@ def parse_codecs(codecs_str):
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return {}
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def get_compatible_ext(*, vcodecs, acodecs, vexts, aexts, preferences=None):
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assert len(vcodecs) == len(vexts) and len(acodecs) == len(aexts)
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allow_mkv = not preferences or 'mkv' in preferences
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if allow_mkv and max(len(acodecs), len(vcodecs)) > 1:
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return 'mkv' # TODO: any other format allows this?
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# TODO: All codecs supported by parse_codecs isn't handled here
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COMPATIBLE_CODECS = {
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'mp4': {
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'av1', 'hevc', 'avc1', 'mp4a', # fourcc (m3u8, mpd)
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'h264', 'aacl', # Set in ISM
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},
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'webm': {
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'av1', 'vp9', 'vp8', 'opus', 'vrbs',
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'vp9x', 'vp8x', # in the webm spec
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},
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}
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sanitize_codec = functools.partial(try_get, getter=lambda x: x.split('.')[0].replace('0', ''))
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vcodec, acodec = sanitize_codec(vcodecs[0]), sanitize_codec(acodecs[0])
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for ext in preferences or COMPATIBLE_CODECS.keys():
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codec_set = COMPATIBLE_CODECS.get(ext, set())
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if ext == 'mkv' or codec_set.issuperset((vcodec, acodec)):
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return ext
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COMPATIBLE_EXTS = (
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{'mp3', 'mp4', 'm4a', 'm4p', 'm4b', 'm4r', 'm4v', 'ismv', 'isma', 'mov'},
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{'webm'},
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)
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for ext in preferences or vexts:
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current_exts = {ext, *vexts, *aexts}
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if ext == 'mkv' or current_exts == {ext} or any(
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ext_sets.issuperset(current_exts) for ext_sets in COMPATIBLE_EXTS):
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return ext
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return 'mkv' if allow_mkv else preferences[-1]
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def urlhandle_detect_ext(url_handle):
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getheader = url_handle.headers.get
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