[extractor/liputan6] Add extractor (#4304)

Closes #4303

Authored by: HobbyistDev

.github/ISSUE_TEMPLATE/1_broken_site.yml

@@ -32,7 +32,7 @@ body:
     id: description
     attributes:
       label: Provide a description that is worded well enough to be understood
-      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/ytdl-org/youtube-dl#is-the-description-of-the-issue-itself-sufficient)
+      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#is-the-description-of-the-issue-itself-sufficient)
       placeholder: Provide any additional information, any suggested solutions, and as much context and examples as possible
     validations:
       required: true

.github/ISSUE_TEMPLATE/2_site_support_request.yml

@@ -44,7 +44,7 @@ body:
     id: description
     attributes:
       label: Provide a description that is worded well enough to be understood
-      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/ytdl-org/youtube-dl#is-the-description-of-the-issue-itself-sufficient)
+      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#is-the-description-of-the-issue-itself-sufficient)
       placeholder: Provide any additional information, any suggested solutions, and as much context and examples as possible
     validations:
       required: true

.github/ISSUE_TEMPLATE/3_site_feature_request.yml

@@ -40,7 +40,7 @@ body:
     id: description
     attributes:
       label: Provide a description that is worded well enough to be understood
-      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/ytdl-org/youtube-dl#is-the-description-of-the-issue-itself-sufficient)
+      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#is-the-description-of-the-issue-itself-sufficient)
       placeholder: Provide any additional information, any suggested solutions, and as much context and examples as possible
     validations:
       required: true

.github/ISSUE_TEMPLATE/4_bug_report.yml

@@ -25,7 +25,7 @@ body:
     id: description
     attributes:
       label: Provide a description that is worded well enough to be understood
-      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/ytdl-org/youtube-dl#is-the-description-of-the-issue-itself-sufficient)
+      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#is-the-description-of-the-issue-itself-sufficient)
       placeholder: Provide any additional information, any suggested solutions, and as much context and examples as possible
     validations:
       required: true

.github/ISSUE_TEMPLATE/5_feature_request.yml

@@ -23,7 +23,7 @@ body:
     id: description
     attributes:
       label: Provide a description that is worded well enough to be understood
-      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/ytdl-org/youtube-dl#is-the-description-of-the-issue-itself-sufficient)
+      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#is-the-description-of-the-issue-itself-sufficient)
       placeholder: Provide any additional information, any suggested solutions, and as much context and examples as possible
     validations:
       required: true

.github/ISSUE_TEMPLATE/6_question.yml

@@ -29,7 +29,7 @@ body:
     id: question
     attributes:
       label: Please make sure the question is worded well enough to be understood
-      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/ytdl-org/youtube-dl#is-the-description-of-the-issue-itself-sufficient)
+      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#is-the-description-of-the-issue-itself-sufficient)
       placeholder: Provide any additional information and as much context and examples as possible
     validations:
       required: true

.github/ISSUE_TEMPLATE_tmpl/1_broken_site.yml

@@ -32,7 +32,7 @@ body:
     id: description
     attributes:
       label: Provide a description that is worded well enough to be understood
-      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/ytdl-org/youtube-dl#is-the-description-of-the-issue-itself-sufficient)
+      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#is-the-description-of-the-issue-itself-sufficient)
       placeholder: Provide any additional information, any suggested solutions, and as much context and examples as possible
     validations:
       required: true

.github/ISSUE_TEMPLATE_tmpl/2_site_support_request.yml

@@ -44,7 +44,7 @@ body:
     id: description
     attributes:
       label: Provide a description that is worded well enough to be understood
-      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/ytdl-org/youtube-dl#is-the-description-of-the-issue-itself-sufficient)
+      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#is-the-description-of-the-issue-itself-sufficient)
       placeholder: Provide any additional information, any suggested solutions, and as much context and examples as possible
     validations:
       required: true

.github/ISSUE_TEMPLATE_tmpl/3_site_feature_request.yml

@@ -40,7 +40,7 @@ body:
     id: description
     attributes:
       label: Provide a description that is worded well enough to be understood
-      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/ytdl-org/youtube-dl#is-the-description-of-the-issue-itself-sufficient)
+      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#is-the-description-of-the-issue-itself-sufficient)
       placeholder: Provide any additional information, any suggested solutions, and as much context and examples as possible
     validations:
       required: true

.github/ISSUE_TEMPLATE_tmpl/4_bug_report.yml

@@ -25,7 +25,7 @@ body:
     id: description
     attributes:
       label: Provide a description that is worded well enough to be understood
-      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/ytdl-org/youtube-dl#is-the-description-of-the-issue-itself-sufficient)
+      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#is-the-description-of-the-issue-itself-sufficient)
       placeholder: Provide any additional information, any suggested solutions, and as much context and examples as possible
     validations:
       required: true

.github/ISSUE_TEMPLATE_tmpl/5_feature_request.yml

@@ -23,7 +23,7 @@ body:
     id: description
     attributes:
       label: Provide a description that is worded well enough to be understood
-      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/ytdl-org/youtube-dl#is-the-description-of-the-issue-itself-sufficient)
+      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#is-the-description-of-the-issue-itself-sufficient)
       placeholder: Provide any additional information, any suggested solutions, and as much context and examples as possible
     validations:
       required: true

.github/ISSUE_TEMPLATE_tmpl/6_question.yml

@@ -29,7 +29,7 @@ body:
     id: question
     attributes:
       label: Please make sure the question is worded well enough to be understood
-      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/ytdl-org/youtube-dl#is-the-description-of-the-issue-itself-sufficient)
+      description: See [is-the-description-of-the-issue-itself-sufficient](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#is-the-description-of-the-issue-itself-sufficient)
       placeholder: Provide any additional information and as much context and examples as possible
     validations:
       required: true

README.md

@@ -147,7 +147,7 @@ Some of yt-dlp's default options are different from that of youtube-dl and youtu
 * Some private fields such as filenames are removed by default from the infojson. Use `--no-clean-infojson` or `--compat-options no-clean-infojson` to revert this
 * When `--embed-subs` and `--write-subs` are used together, the subtitles are written to disk and also embedded in the media file. You can use just `--embed-subs` to embed the subs and automatically delete the separate file. See [#630 (comment)](https://github.com/yt-dlp/yt-dlp/issues/630#issuecomment-893659460) for more info. `--compat-options no-keep-subs` can be used to revert this
 * `certifi` will be used for SSL root certificates, if installed. If you want to use system certificates (e.g. self-signed), use `--compat-options no-certifi`
-* youtube-dl tries to remove some superfluous punctuations from filenames. While this can sometimes be helpfull, it is often undesirable. So yt-dlp tries to keep the fields in the filenames as close to their original values as possible. You can use `--compat-options filename-sanitization` to revert to youtube-dl's behavior
+* youtube-dl tries to remove some superfluous punctuations from filenames. While this can sometimes be helpful, it is often undesirable. So yt-dlp tries to keep the fields in the filenames as close to their original values as possible. You can use `--compat-options filename-sanitization` to revert to youtube-dl's behavior
 
 For ease of use, a few more compat options are available:
 
@@ -238,7 +238,7 @@ File|Description
 :---|:---
 [yt-dlp](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp)|Platform-independent [zipimport](https://docs.python.org/3/library/zipimport.html) binary. Needs Python (recommended for **Linux/BSD**)
 [yt-dlp.exe](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp.exe)|Windows (Win7 SP1+) standalone x64 binary (recommended for **Windows**)
-[yt-dlp_macos](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_macos)|MacOS (10.15+) standalone executable (recommended for **MacOS**)
+[yt-dlp_macos](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_macos)|Universal MacOS (10.15+) standalone executable (recommended for **MacOS**)
 
 #### Alternatives
 
@@ -246,8 +246,8 @@ File|Description
 :---|:---
 [yt-dlp_x86.exe](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_x86.exe)|Windows (Vista SP2+) standalone x86 (32-bit) binary
 [yt-dlp_min.exe](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_min.exe)|Windows (Win7 SP1+) standalone x64 binary built with `py2exe`<br/> ([Not recommended](#standalone-py2exe-builds-windows))
-[yt-dlp_linux](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_linux)|UNIX standalone x64 binary
+[yt-dlp_linux](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_linux)|Linux standalone x64 binary
-[yt-dlp_linux.zip](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_linux.zip)|Unpackaged Unix executable (no auto-update)
+[yt-dlp_linux.zip](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_linux.zip)|Unpackaged Linux executable (no auto-update)
 [yt-dlp_win.zip](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_win.zip)|Unpackaged Windows executable (no auto-update)
 [yt-dlp_macos.zip](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_macos.zip)|Unpackaged MacOS (10.15+) executable (no auto-update)
 [yt-dlp_macos_legacy](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_macos_legacy)|MacOS (10.9+) standalone x64 executable
@@ -305,7 +305,7 @@ While all the other dependencies are optional, `ffmpeg` and `ffprobe` are highly
 
 To use or redistribute the dependencies, you must agree to their respective licensing terms.
 
-The Windows and MacOS standalone release binaries are built with the Python interpreter and the packages marked with **\*** included.
+The standalone release binaries are built with the Python interpreter and the packages marked with **\*** included.
 
 If you do not have the necessary dependencies for a task you are attempting, yt-dlp will warn you. All the currently available dependencies are visible at the top of the `--verbose` output
 
@@ -414,7 +414,8 @@ You can also fork the project on github and run your fork's [build workflow](.gi
     --no-wait-for-video             Do not wait for scheduled streams (default)
     --mark-watched                  Mark videos watched (even with --simulate)
     --no-mark-watched               Do not mark videos watched (default)
-    --no-colors                     Do not emit color codes in output
+    --no-colors                     Do not emit color codes in output (Alias:
+                                    --no-colours)
     --compat-options OPTS           Options that can help keep compatibility
                                     with youtube-dl or youtube-dlc
                                     configurations by reverting some of the

test/test_YoutubeDL.py

@@ -1053,6 +1053,7 @@ class TestYoutubeDL(unittest.TestCase):
                            for v in get_downloaded_info_dicts(params, entries)]
                 self.assertEqual(results, list(enumerate(zip(expected_ids, expected_ids))), f'Entries of {name} for {params}')
                 self.assertEqual(sorted(evaluated), expected_eval, f'Evaluation of {name} for {params}')
+
         test_selection({}, INDICES)
         test_selection({'playlistend': 20}, INDICES, True)
         test_selection({'playlistend': 2}, INDICES[:2])

yt_dlp/YoutubeDL.py

@@ -43,9 +43,11 @@ from .postprocessor import (
     FFmpegFixupTimestampPP,
     FFmpegMergerPP,
     FFmpegPostProcessor,
+    FFmpegVideoConvertorPP,
     MoveFilesAfterDownloadPP,
     get_postprocessor,
 )
+from .postprocessor.ffmpeg import resolve_mapping as resolve_recode_mapping
 from .update import detect_variant
 from .utils import (
     DEFAULT_OUTTMPL,
@@ -3181,22 +3183,23 @@ class YoutubeDL:
                             self.report_warning(f'{vid}: {msg}. Install ffmpeg to fix this automatically')
 
                     stretched_ratio = info_dict.get('stretched_ratio')
-                    ffmpeg_fixup(
+                    ffmpeg_fixup(stretched_ratio not in (1, None),
-                        stretched_ratio not in (1, None),
+                                 f'Non-uniform pixel ratio {stretched_ratio}',
-                        f'Non-uniform pixel ratio {stretched_ratio}',
+                                 FFmpegFixupStretchedPP)
-                        FFmpegFixupStretchedPP)
-
-                    ffmpeg_fixup(
-                        (info_dict.get('requested_formats') is None
-                         and info_dict.get('container') == 'm4a_dash'
-                         and info_dict.get('ext') == 'm4a'),
-                        'writing DASH m4a. Only some players support this container',
-                        FFmpegFixupM4aPP)
 
                     downloader = get_suitable_downloader(info_dict, self.params) if 'protocol' in info_dict else None
                     downloader = downloader.FD_NAME if downloader else None
 
-                    if info_dict.get('requested_formats') is None:  # Not necessary if doing merger
+                    ext = info_dict.get('ext')
+                    postprocessed_by_ffmpeg = info_dict.get('requested_formats') or any((
+                        isinstance(pp, FFmpegVideoConvertorPP)
+                        and resolve_recode_mapping(ext, pp.mapping)[0] not in (ext, None)
+                    ) for pp in self._pps['post_process'])
+
+                    if not postprocessed_by_ffmpeg:
+                        ffmpeg_fixup(ext == 'm4a' and info_dict.get('container') == 'm4a_dash',
+                                     'writing DASH m4a. Only some players support this container',
+                                     FFmpegFixupM4aPP)
                         ffmpeg_fixup(downloader == 'hlsnative' and not self.params.get('hls_use_mpegts')
                                      or info_dict.get('is_live') and self.params.get('hls_use_mpegts') is None,
                                      'Possible MPEG-TS in MP4 container or malformed AAC timestamps',

yt_dlp/__init__.py

@@ -2,6 +2,7 @@ f'You are using an unsupported version of Python. Only Python versions 3.6 and a
 
 __license__ = 'Public Domain'
 
+import collections
 import getpass
 import itertools
 import optparse
@@ -516,7 +517,7 @@ def validate_options(opts):
         # Do not unnecessarily download audio
         opts.format = 'bestaudio/best'
 
-    if opts.getcomments and opts.writeinfojson is None:
+    if opts.getcomments and opts.writeinfojson is None and not opts.embed_infojson:
         # If JSON is not printed anywhere, but comments are requested, save it to file
         if not opts.dumpjson or opts.print_json or opts.dump_single_json:
             opts.writeinfojson = True
@@ -665,8 +666,11 @@ def get_postprocessors(opts):
         }
 
 
+ParsedOptions = collections.namedtuple('ParsedOptions', ('parser', 'options', 'urls', 'ydl_opts'))
+
+
 def parse_options(argv=None):
-    """ @returns (parser, opts, urls, ydl_opts) """
+    """@returns ParsedOptions(parser, opts, urls, ydl_opts)"""
     parser, opts, urls = parseOpts(argv)
     urls = get_urls(urls, opts.batchfile, opts.verbose)
 
@@ -690,7 +694,7 @@ def parse_options(argv=None):
         else opts.audioformat if (opts.extractaudio and opts.audioformat in FFmpegExtractAudioPP.SUPPORTED_EXTS)
         else None)
 
-    return parser, opts, urls, {
+    return ParsedOptions(parser, opts, urls, {
         'usenetrc': opts.usenetrc,
         'netrc_location': opts.netrc_location,
         'username': opts.username,
@@ -863,7 +867,7 @@ def parse_options(argv=None):
         '_warnings': warnings,
         '_deprecation_warnings': deprecation_warnings,
         'compat_opts': opts.compat_opts,
-    }
+    })
 
 
 def _real_main(argv=None):

yt_dlp/extractor/_extractors.py

@@ -830,6 +830,7 @@ from .linkedin import (
     LinkedInLearningCourseIE,
 )
 from .linuxacademy import LinuxAcademyIE
+from .liputan6 import Liputan6IE
 from .litv import LiTVIE
 from .livejournal import LiveJournalIE
 from .livestream import (

yt_dlp/extractor/liputan6.py

@@ -0,0 +1,64 @@
+from .common import InfoExtractor
+from .vidio import VidioIE
+
+
+class Liputan6IE(InfoExtractor):
+    _VALID_URL = r'https?://www\.liputan6\.com/\w+/read/\d+/(?P<id>[\w-]+)'
+    _TESTS = [{
+        'url': 'https://www.liputan6.com/news/read/5007510/video-duh-perawat-rs-di-medan-diduga-salah-berikan-obat-ke-pasien',
+        'info_dict': {
+            'id': '7082548',
+            'ext': 'mp4',
+            'title': 'Duh, Perawat RS di Medan Diduga Salah Berikan Obat Ke Pasien',
+            'thumbnail': 'https://thumbor.prod.vidiocdn.com/lOz5pStm9X-jjlTa_VQQUelOPtw=/640x360/filters:quality(70)/vidio-web-prod-video/uploads/video/image/7082548/duh-perawat-rs-di-medan-diduga-salah-berikan-obat-ke-pasien-ca1125.jpg',
+            'channel_id': '185693',
+            'uploader': 'Liputan6.com',
+            'duration': 104,
+            'uploader_url': 'https://www.vidio.com/@liputan6',
+            'description': 'md5:3b58ecff10ec3a41d4304cf98228435a',
+            'timestamp': 1657159427,
+            'uploader_id': 'liputan6',
+            'display_id': 'video-duh-perawat-rs-di-medan-diduga-salah-berikan-obat-ke-pasien',
+            'like_count': int,
+            'view_count': int,
+            'comment_count': int,
+            'tags': ['perawat indonesia', 'rumah sakit', 'Medan', 'viral hari ini', 'viral', 'enamplus'],
+            'channel': 'Default Channel',
+            'dislike_count': int,
+            'upload_date': '20220707'
+        }
+    }, {
+        'url': 'https://www.liputan6.com/tv/read/5007719/video-program-minyakita-minyak-goreng-kemasan-sederhana-seharga-rp-14-ribu',
+        'info_dict': {
+            'id': '7082543',
+            'ext': 'mp4',
+            'title': 'md5:ecb7b3c598b97798bfd0eb50c6233b8c',
+            'channel_id': '604054',
+            'dislike_count': int,
+            'comment_count': int,
+            'timestamp': 1657159211,
+            'upload_date': '20220707',
+            'tags': ['minyakita', 'minyak goreng', 'liputan 6', 'sctv'],
+            'uploader_url': 'https://www.vidio.com/@sctv',
+            'display_id': 'video-program-minyakita-minyak-goreng-kemasan-sederhana-seharga-rp-14-ribu',
+            'like_count': int,
+            'uploader': 'SCTV',
+            'description': 'md5:6c374d82589b71fb98b3d550edb6873f',
+            'duration': 99,
+            'uploader_id': 'sctv',
+            'thumbnail': 'https://thumbor.prod.vidiocdn.com/AAIOjz-64hKojjdw5hr0oNNEeJg=/640x360/filters:quality(70)/vidio-web-prod-video/uploads/video/image/7082543/program-minyakita-minyak-goreng-kemasan-sederhana-seharga-rp14-ribu-_-liputan-6-7d9fbb.jpg',
+            'channel': 'Liputan 6 Pagi',
+            'view_count': int,
+        }
+    }]
+
+    def _real_extract(self, url):
+        display_id = self._match_id(url)
+        webpage = self._download_webpage(url, display_id)
+
+        json_data = self._search_json(
+            r'window.kmklabs.gtm\s*=\s*', webpage, 'json_data', display_id)
+        video_id = json_data['videos']['video_1']['video_id']
+
+        return self.url_result(
+            f'https://www.vidio.com/watch/{video_id}-{display_id}', ie=VidioIE, video_id=display_id)

yt_dlp/options.py

@@ -428,9 +428,9 @@ def create_parser():
         action='store_false', dest='mark_watched',
         help='Do not mark videos watched (default)')
     general.add_option(
-        '--no-colors',
+        '--no-colors', '--no-colours',
         action='store_true', dest='no_color', default=False,
-        help='Do not emit color codes in output')
+        help='Do not emit color codes in output (Alias: --no-colours)')
     general.add_option(
         '--compat-options',
         metavar='OPTS', dest='compat_opts', default=set(), type='str',

yt_dlp/postprocessor/ffmpeg.py

@@ -725,11 +725,10 @@ class FFmpegMetadataPP(FFmpegPostProcessor):
                 value = value.replace('\0', '')  # nul character cannot be passed in command line
                 metadata['common'].update({meta_f: value for meta_f in variadic(meta_list)})
 
-        # See [1-4] for some info on media metadata/metadata supported
+        # Info on media metadata/metadata supported by ffmpeg:
-        # by ffmpeg.
+        # https://wiki.multimedia.cx/index.php/FFmpeg_Metadata
-        # 1. https://kdenlive.org/en/project/adding-meta-data-to-mp4-video/
+        # https://kdenlive.org/en/project/adding-meta-data-to-mp4-video/
-        # 2. https://wiki.multimedia.cx/index.php/FFmpeg_Metadata
+        # https://kodi.wiki/view/Video_file_tagging
-        # 3. https://kodi.wiki/view/Video_file_tagging
 
         add('title', ('track', 'title'))
         add('date', 'upload_date')

yt_dlp/utils.py

@@ -1908,6 +1908,10 @@ class DateRange:
     def __str__(self):
         return f'{self.start.isoformat()} - {self.end.isoformat()}'
 
+    def __eq__(self, other):
+        return (isinstance(other, DateRange)
+                and self.start == other.start and self.end == other.end)
+
 
 def platform_name():
     """ Returns the platform name as a str """
@@ -2660,7 +2664,7 @@ class LazyList(collections.abc.Sequence):
 
     @staticmethod
     def _reverse_index(x):
-        return None if x is None else -(x + 1)
+        return None if x is None else ~x
 
     def __getitem__(self, idx):
         if isinstance(idx, slice):
@@ -3662,21 +3666,26 @@ def match_filter_func(filters):
     return _match_func
 
 
-def download_range_func(chapters, ranges):
+class download_range_func:
-    def inner(info_dict, ydl):
+    def __init__(self, chapters, ranges):
+        self.chapters, self.ranges = chapters, ranges
+
+    def __call__(self, info_dict, ydl):
         warning = ('There are no chapters matching the regex' if info_dict.get('chapters')
                    else 'Cannot match chapters since chapter information is unavailable')
-        for regex in chapters or []:
+        for regex in self.chapters or []:
             for i, chapter in enumerate(info_dict.get('chapters') or []):
                 if re.search(regex, chapter['title']):
                     warning = None
                     yield {**chapter, 'index': i}
-        if chapters and warning:
+        if self.chapters and warning:
             ydl.to_screen(f'[info] {info_dict["id"]}: {warning}')
 
-        yield from ({'start_time': start, 'end_time': end} for start, end in ranges or [])
+        yield from ({'start_time': start, 'end_time': end} for start, end in self.ranges or [])
 
-    return inner
+    def __eq__(self, other):
+        return (isinstance(other, download_range_func)
+                and self.chapters == other.chapters and self.ranges == other.ranges)
 
 
 def parse_dfxp_time_expr(time_expr):