[go,viu] Extract subtitles from the m3u8 manifest (#3219)

Authored by: fstirlitz

README.md

@@ -144,6 +144,7 @@ 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
 
 For ease of use, a few more compat options are available:
 * `--compat-options all`: Use all compat options
@@ -1655,7 +1656,7 @@ Some extractors accept additional arguments which can be passed using `--extract
 The following extractors use this feature:
 
 #### youtube
-* `skip`: `hls` or `dash` (or both) to skip download of the respective manifests
+* `skip`: One or more of `hls`, `dash` or `translated_subs` to skip extraction of the m3u8 manifests, dash manifests and auto-translated subtitles respectively
 * `player_client`: Clients to extract video data from. The main clients are `web`, `android`, `ios`, `mweb`. These also have `_music`, `_embedded`, `_agegate`, and `_creator` variants (Eg: `web_embedded`) (`mweb` has only `_agegate`). By default, `android,web` is used, but the agegate and creator variants are added as required for age-gated videos. Similarly the music variants are added for `music.youtube.com` urls. You can also use `all` to use all the clients, and `default` for the default clients.
 * `player_skip`: Skip some network requests that are generally needed for robust extraction. One or more of `configs` (skip client configs), `webpage` (skip initial webpage), `js` (skip js player). While these options can help reduce the number of requests needed or avoid some rate-limiting, they could cause some issues. See [#860](https://github.com/yt-dlp/yt-dlp/pull/860) for more details
 * `include_live_dash`: Include live dash formats even without `--live-from-start` (These formats don't download properly)

test/test_utils.py

@@ -160,10 +160,12 @@ class TestUtil(unittest.TestCase):
             sanitize_filename('New World record at 0:12:34'),
             'New World record at 0_12_34')
 
-        self.assertEqual(sanitize_filename('--gasdgf'), '_-gasdgf')
+        self.assertEqual(sanitize_filename('--gasdgf'), '--gasdgf')
         self.assertEqual(sanitize_filename('--gasdgf', is_id=True), '--gasdgf')
-        self.assertEqual(sanitize_filename('.gasdgf'), 'gasdgf')
+        self.assertEqual(sanitize_filename('--gasdgf', is_id=False), '_-gasdgf')
+        self.assertEqual(sanitize_filename('.gasdgf'), '.gasdgf')
         self.assertEqual(sanitize_filename('.gasdgf', is_id=True), '.gasdgf')
+        self.assertEqual(sanitize_filename('.gasdgf', is_id=False), 'gasdgf')
 
         forbidden = '"\0\\/'
         for fc in forbidden:

yt_dlp/YoutubeDL.py

@@ -87,6 +87,7 @@ from .utils import (
     MaxDownloadsReached,
     merge_headers,
     network_exceptions,
+    NO_DEFAULT,
     number_of_digits,
     orderedSet,
     OUTTMPL_TYPES,
@@ -1150,8 +1151,10 @@ class YoutubeDL(object):
         na = self.params.get('outtmpl_na_placeholder', 'NA')
 
         def filename_sanitizer(key, value, restricted=self.params.get('restrictfilenames')):
-            return sanitize_filename(str(value), restricted=restricted,
-                                     is_id=re.search(r'(^|[_.])id(\.|$)', key))
+            return sanitize_filename(str(value), restricted=restricted, is_id=(
+                bool(re.search(r'(^|[_.])id(\.|$)', key))
+                if 'filename-sanitization' in self.params.get('compat_opts', [])
+                else NO_DEFAULT))
 
         sanitizer = sanitize if callable(sanitize) else filename_sanitizer
         sanitize = bool(sanitize)
@@ -2456,6 +2459,11 @@ class YoutubeDL(object):
         info_dict['__has_drm'] = any(f.get('has_drm') for f in formats)
         if not self.params.get('allow_unplayable_formats'):
             formats = [f for f in formats if not f.get('has_drm')]
+            if info_dict['__has_drm'] and all(
+                    f.get('acodec') == f.get('vcodec') == 'none' for f in formats):
+                self.report_warning(
+                    'This video is DRM protected and only images are available for download. '
+                    'Use --list-formats to see them')
 
         get_from_start = not info_dict.get('is_live') or bool(self.params.get('live_from_start'))
         if not get_from_start:
@@ -2628,8 +2636,9 @@ class YoutubeDL(object):
 
         if not formats_to_download:
             if not self.params.get('ignore_no_formats_error'):
-                raise ExtractorError('Requested format is not available', expected=True,
-                                     video_id=info_dict['id'], ie=info_dict['extractor'])
+                raise ExtractorError(
+                    'Requested format is not available. Use --list-formats for a list of available formats',
+                    expected=True, video_id=info_dict['id'], ie=info_dict['extractor'])
             self.report_warning('Requested format is not available')
             # Process what we can, even without any available formats.
             formats_to_download = [{}]

yt_dlp/extractor/banbye.py

@@ -0,0 +1,153 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+import math
+
+from .common import InfoExtractor
+from ..compat import (
+    compat_urllib_parse_urlparse,
+    compat_parse_qs,
+)
+from ..utils import (
+    format_field,
+    InAdvancePagedList,
+    traverse_obj,
+    unified_timestamp,
+)
+
+
+class BanByeBaseIE(InfoExtractor):
+    _API_BASE = 'https://api.banbye.com'
+    _CDN_BASE = 'https://cdn.banbye.com'
+    _VIDEO_BASE = 'https://banbye.com/watch'
+
+    @staticmethod
+    def _extract_playlist_id(url, param='playlist'):
+        return compat_parse_qs(
+            compat_urllib_parse_urlparse(url).query).get(param, [None])[0]
+
+    def _extract_playlist(self, playlist_id):
+        data = self._download_json(f'{self._API_BASE}/playlists/{playlist_id}', playlist_id)
+        return self.playlist_result([
+            self.url_result(f'{self._VIDEO_BASE}/{video_id}', BanByeIE)
+            for video_id in data['videoIds']], playlist_id, data.get('name'))
+
+
+class BanByeIE(BanByeBaseIE):
+    _VALID_URL = r'https?://(?:www\.)?banbye.com/(?:en/)?watch/(?P<id>\w+)'
+    _TESTS = [{
+        'url': 'https://banbye.com/watch/v_ytfmvkVYLE8T',
+        'md5': '2f4ea15c5ca259a73d909b2cfd558eb5',
+        'info_dict': {
+            'id': 'v_ytfmvkVYLE8T',
+            'ext': 'mp4',
+            'title': 'md5:5ec098f88a0d796f987648de6322ba0f',
+            'description': 'md5:4d94836e73396bc18ef1fa0f43e5a63a',
+            'uploader': 'wRealu24',
+            'channel_id': 'ch_wrealu24',
+            'channel_url': 'https://banbye.com/channel/ch_wrealu24',
+            'timestamp': 1647604800,
+            'upload_date': '20220318',
+            'duration': 1931,
+            'thumbnail': r're:https?://.*\.webp',
+            'tags': 'count:5',
+            'like_count': int,
+            'dislike_count': int,
+            'view_count': int,
+            'comment_count': int,
+        },
+    }, {
+        'url': 'https://banbye.com/watch/v_2JjQtqjKUE_F?playlistId=p_Ld82N6gBw_OJ',
+        'info_dict': {
+            'title': 'Krzysztof Karoń',
+            'id': 'p_Ld82N6gBw_OJ',
+        },
+        'playlist_count': 9,
+    }]
+
+    def _real_extract(self, url):
+        video_id = self._match_id(url)
+        playlist_id = self._extract_playlist_id(url, 'playlistId')
+
+        if self._yes_playlist(playlist_id, video_id):
+            return self._extract_playlist(playlist_id)
+
+        data = self._download_json(f'{self._API_BASE}/videos/{video_id}', video_id)
+        thumbnails = [{
+            'id': f'{quality}p',
+            'url': f'{self._CDN_BASE}/video/{video_id}/{quality}.webp',
+        } for quality in [48, 96, 144, 240, 512, 1080]]
+        formats = [{
+            'format_id': f'http-{quality}p',
+            'quality': quality,
+            'url': f'{self._CDN_BASE}/video/{video_id}/{quality}.mp4',
+        } for quality in data['quality']]
+
+        self._sort_formats(formats)
+
+        return {
+            'id': video_id,
+            'title': data.get('title'),
+            'description': data.get('desc'),
+            'uploader': traverse_obj(data, ('channel', 'name')),
+            'channel_id': data.get('channelId'),
+            'channel_url': format_field(data, 'channelId', 'https://banbye.com/channel/%s'),
+            'timestamp': unified_timestamp(data.get('publishedAt')),
+            'duration': data.get('duration'),
+            'tags': data.get('tags'),
+            'formats': formats,
+            'thumbnails': thumbnails,
+            'like_count': data.get('likes'),
+            'dislike_count': data.get('dislikes'),
+            'view_count': data.get('views'),
+            'comment_count': data.get('commentCount'),
+        }
+
+
+class BanByeChannelIE(BanByeBaseIE):
+    _VALID_URL = r'https?://(?:www\.)?banbye.com/(?:en/)?channel/(?P<id>\w+)'
+    _TESTS = [{
+        'url': 'https://banbye.com/channel/ch_wrealu24',
+        'info_dict': {
+            'title': 'wRealu24',
+            'id': 'ch_wrealu24',
+            'description': 'md5:da54e48416b74dfdde20a04867c0c2f6',
+        },
+        'playlist_mincount': 791,
+    }, {
+        'url': 'https://banbye.com/channel/ch_wrealu24?playlist=p_Ld82N6gBw_OJ',
+        'info_dict': {
+            'title': 'Krzysztof Karoń',
+            'id': 'p_Ld82N6gBw_OJ',
+        },
+        'playlist_count': 9,
+    }]
+    _PAGE_SIZE = 100
+
+    def _real_extract(self, url):
+        channel_id = self._match_id(url)
+        playlist_id = self._extract_playlist_id(url)
+
+        if playlist_id:
+            return self._extract_playlist(playlist_id)
+
+        def page_func(page_num):
+            data = self._download_json(f'{self._API_BASE}/videos', channel_id, query={
+                'channelId': channel_id,
+                'sort': 'new',
+                'limit': self._PAGE_SIZE,
+                'offset': page_num * self._PAGE_SIZE,
+            }, note=f'Downloading page {page_num+1}')
+            return [
+                self.url_result(f"{self._VIDEO_BASE}/{video['_id']}", BanByeIE)
+                for video in data['items']
+            ]
+
+        channel_data = self._download_json(f'{self._API_BASE}/channels/{channel_id}', channel_id)
+        entries = InAdvancePagedList(
+            page_func,
+            math.ceil(channel_data['videoCount'] / self._PAGE_SIZE),
+            self._PAGE_SIZE)
+
+        return self.playlist_result(
+            entries, channel_id, channel_data.get('name'), channel_data.get('description'))

yt_dlp/extractor/extractors.py

@@ -122,6 +122,10 @@ from .awaan import (
 )
 from .azmedien import AZMedienIE
 from .baidu import BaiduVideoIE
+from .banbye import (
+    BanByeIE,
+    BanByeChannelIE,
+)
 from .bandaichannel import BandaiChannelIE
 from .bandcamp import (
     BandcampIE,
@@ -674,6 +678,12 @@ from .iqiyi import (
     IqIE,
     IqAlbumIE
 )
+
+from .itprotv import (
+    ITProTVIE,
+    ITProTVCourseIE
+)
+
 from .itv import (
     ITVIE,
     ITVBTCCIE,

yt_dlp/extractor/go.py

@@ -217,6 +217,7 @@ class GoIE(AdobePassIE):
         title = video_data['title']
 
         formats = []
+        subtitles = {}
         for asset in video_data.get('assets', {}).get('asset', []):
             asset_url = asset.get('value')
             if not asset_url:
@@ -256,8 +257,10 @@ class GoIE(AdobePassIE):
                     error_message = ', '.join([error['message'] for error in errors])
                     raise ExtractorError('%s said: %s' % (self.IE_NAME, error_message), expected=True)
                 asset_url += '?' + entitlement['uplynkData']['sessionKey']
-                formats.extend(self._extract_m3u8_formats(
-                    asset_url, video_id, 'mp4', m3u8_id=format_id or 'hls', fatal=False))
+                fmts, subs = self._extract_m3u8_formats_and_subtitles(
+                    asset_url, video_id, 'mp4', m3u8_id=format_id or 'hls', fatal=False)
+                formats.extend(fmts)
+                self._merge_subtitles(subs, target=subtitles)
             else:
                 f = {
                     'format_id': format_id,
@@ -281,7 +284,6 @@ class GoIE(AdobePassIE):
                 formats.append(f)
         self._sort_formats(formats)
 
-        subtitles = {}
         for cc in video_data.get('closedcaption', {}).get('src', []):
             cc_url = cc.get('value')
             if not cc_url:

yt_dlp/extractor/itprotv.py

@@ -0,0 +1,141 @@
+# coding: utf-8
+
+import re
+
+from .common import InfoExtractor
+
+from ..utils import (
+    int_or_none,
+    str_or_none,
+    traverse_obj,
+    urljoin
+)
+
+
+class ITProTVBaseIE(InfoExtractor):
+    _ENDPOINTS = {
+        'course': 'course?url={}&brand=00002560-0000-3fa9-0000-1d61000035f3',
+        'episode': 'brand/00002560-0000-3fa9-0000-1d61000035f3/episode?url={}'
+    }
+
+    def _call_api(self, ep, item_id, webpage):
+        return self._download_json(
+            f'https://api.itpro.tv/api/urza/v3/consumer-web/{self._ENDPOINTS[ep].format(item_id)}',
+            item_id, note=f'Fetching {ep} data API',
+            headers={'Authorization': f'Bearer {self._fetch_jwt(webpage)}'})[ep]
+
+    def _fetch_jwt(self, webpage):
+        return self._search_regex(r'{"passedToken":"([\w-]+\.[\w-]+\.[\w-]+)",', webpage, 'jwt')
+
+    def _check_if_logged_in(self, webpage):
+        if re.match(r'{\s*member\s*:\s*null', webpage):
+            self.raise_login_required()
+
+
+class ITProTVIE(ITProTVBaseIE):
+    _VALID_URL = r'https://app.itpro.tv/course/(?P<course>[\w-]+)/(?P<id>[\w-]+)'
+    _TESTS = [{
+        'url': 'https://app.itpro.tv/course/guided-tour/introductionitprotv',
+        'md5': 'bca4a28c2667fd1a63052e71a94bb88c',
+        'info_dict': {
+            'id': 'introductionitprotv',
+            'ext': 'mp4',
+            'title': 'An Introduction to ITProTV 101',
+            'thumbnail': 'https://itprotv-image-bucket.s3.amazonaws.com/getting-started/itprotv-101-introduction-PGM.11_39_56_02.Still001.png',
+            'description': 'md5:b175c2c3061ce35a4dd33865b2c1da4e',
+            'duration': 269,
+            'series': 'ITProTV 101',
+            'series_id': 'guided-tour',
+            'availability': 'needs_auth',
+            'chapter': 'ITProTV 101',
+            'chapter_number': 1,
+            'chapter_id': '5dbb3de426b46c0010b5d1b6'
+        },
+    },
+        {
+        'url': 'https://app.itpro.tv/course/beyond-tech/job-interview-tips',
+        'md5': '101a299b98c47ccf4c67f9f0951defa8',
+        'info_dict': {
+            'id': 'job-interview-tips',
+            'ext': 'mp4',
+            'title': 'Job Interview Tips',
+            'thumbnail': 'https://s3.amazonaws.com:443/production-itprotv-thumbnails/2f370bf5-294d-4bbe-ab80-c0b5781630ea.png',
+            'description': 'md5:30d8ba483febdf89ec85623aad3c3cb6',
+            'duration': 267,
+            'series': 'Beyond Tech',
+            'series_id': 'beyond-tech',
+            'availability': 'needs_auth',
+            'chapter': 'Job Development',
+            'chapter_number': 2,
+            'chapter_id': '5f7c78d424330c000edf04d9'
+        },
+    }]
+
+    def _real_extract(self, url):
+        episode_id, course_name = self._match_valid_url(url).group('id', 'course')
+        webpage = self._download_webpage(url, episode_id)
+        self._check_if_logged_in(webpage)
+        course = self._call_api('course', course_name, webpage)
+        episode = self._call_api('episode', episode_id, webpage)
+
+        chapter_number, chapter = next((
+            (i, topic) for i, topic in enumerate(course.get('topics') or [], 1)
+            if traverse_obj(topic, 'id') == episode.get('topic')), {})
+
+        return {
+            'id': episode_id,
+            'title': episode.get('title'),
+            'description': episode.get('description'),
+            'thumbnail': episode.get('thumbnail'),
+            'formats': [
+                {'url': episode[f'jwVideo{h}Embed'], 'height': h}
+                for h in (320, 480, 720, 1080) if episode.get(f'jwVideo{h}Embed')
+            ],
+            'duration': int_or_none(episode.get('length')),
+            'series': course.get('name'),
+            'series_id': course.get('url'),
+            'chapter': str_or_none(chapter.get('title')),
+            'chapter_number': chapter_number,
+            'chapter_id': str_or_none(chapter.get('id')),
+            'subtitles': {
+                'en': [{'ext': 'vtt', 'data': episode['enCaptionData']}]
+            } if episode.get('enCaptionData') else None,
+        }
+
+
+class ITProTVCourseIE(ITProTVBaseIE):
+    _VALID_URL = r'https?://app.itpro.tv/course/(?P<id>[\w-]+)/?(?:$|[#?])'
+    _TESTS = [
+        {
+            'url': 'https://app.itpro.tv/course/guided-tour',
+            'info_dict': {
+                'id': 'guided-tour',
+                'description': 'md5:b175c2c3061ce35a4dd33865b2c1da4e',
+                'title': 'ITProTV 101',
+            },
+            'playlist_count': 6
+        },
+        {
+            'url': 'https://app.itpro.tv/course/beyond-tech',
+            'info_dict': {
+                'id': 'beyond-tech',
+                'description': 'md5:44cd99855e7f81a15ce1269bd0621fed',
+                'title': 'Beyond Tech'
+            },
+            'playlist_count': 15
+        },
+    ]
+
+    def _real_extract(self, url):
+        course_id = self._match_id(url)
+        webpage = self._download_webpage(url, course_id)
+        self._check_if_logged_in(webpage)
+        course = self._call_api('course', course_id, webpage)
+
+        entries = [self.url_result(
+            urljoin(url, f'{course_id}/{episode["url"]}'), ITProTVIE,
+            episode['url'], episode.get('title'), url_transparent=True)
+            for episode in course['episodes']]
+
+        return self.playlist_result(
+            entries, course_id, course.get('name'), course.get('description'))

yt_dlp/extractor/viu.py

@@ -88,10 +88,9 @@ class ViuIE(ViuBaseIE):
             #     r'(/hlsc_)[a-z]+(\d+\.m3u8)',
             #     r'\1whe\2', video_data['href'])
             m3u8_url = video_data['href']
-        formats = self._extract_m3u8_formats(m3u8_url, video_id, 'mp4')
+        formats, subtitles = self._extract_m3u8_formats_and_subtitles(m3u8_url, video_id, 'mp4')
         self._sort_formats(formats)
 
-        subtitles = {}
         for key, value in video_data.items():
             mobj = re.match(r'^subtitle_(?P<lang>[^_]+)_(?P<ext>(vtt|srt))', key)
             if not mobj:

yt_dlp/extractor/youtube.py

@@ -818,12 +818,17 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
             renderer, ('thumbnailOverlays', ..., 'thumbnailOverlayTimeStatusRenderer', 'style'), get_all=False, expected_type=str)
         badges = self._extract_badges(renderer)
         thumbnails = self._extract_thumbnails(renderer, 'thumbnail')
+        navigation_url = urljoin('https://www.youtube.com/', traverse_obj(
+            renderer, ('navigationEndpoint', 'commandMetadata', 'webCommandMetadata', 'url'), expected_type=str))
+        url = f'https://www.youtube.com/watch?v={video_id}'
+        if overlay_style == 'SHORTS' or (navigation_url and '/shorts/' in navigation_url):
+            url = f'https://www.youtube.com/shorts/{video_id}'
 
         return {
             '_type': 'url',
             'ie_key': YoutubeIE.ie_key(),
             'id': video_id,
-            'url': f'https://www.youtube.com/watch?v={video_id}',
+            'url': url,
             'title': title,
             'description': description,
             'duration': duration,
@@ -3018,7 +3023,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         streaming_formats = traverse_obj(streaming_data, (..., ('formats', 'adaptiveFormats'), ...), default=[])
 
         for fmt in streaming_formats:
-            if fmt.get('targetDurationSec') or fmt.get('drmFamilies'):
+            if fmt.get('targetDurationSec'):
                 continue
 
             itag = str_or_none(fmt.get('itag'))
@@ -3100,6 +3105,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                 'fps': int_or_none(fmt.get('fps')) or None,
                 'height': height,
                 'quality': q(quality),
+                'has_drm': bool(fmt.get('drmFamilies')),
                 'tbr': tbr,
                 'url': fmt_url,
                 'width': int_or_none(fmt.get('width')),
@@ -3473,6 +3479,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             subtitles, automatic_captions = {}, {}
             for lang_code, caption_track in captions.items():
                 base_url = caption_track.get('baseUrl')
+                orig_lang = parse_qs(base_url).get('lang', [None])[-1]
                 if not base_url:
                     continue
                 lang_name = self._get_text(caption_track, 'name', max_runs=1)
@@ -3486,19 +3493,20 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                 for trans_code, trans_name in translation_languages.items():
                     if not trans_code:
                         continue
+                    orig_trans_code = trans_code
                     if caption_track.get('kind') != 'asr':
+                        if 'translated_subs' in self._configuration_arg('skip'):
+                            continue
                         trans_code += f'-{lang_code}'
                         trans_name += format_field(lang_name, template=' from %s')
                     # Add an "-orig" label to the original language so that it can be distinguished.
                     # The subs are returned without "-orig" as well for compatibility
-                    if lang_code == f'a-{trans_code}':
+                    if lang_code == f'a-{orig_trans_code}':
                         process_language(
                             automatic_captions, base_url, f'{trans_code}-orig', f'{trans_name} (Original)', {})
                     # Setting tlang=lang returns damaged subtitles.
-                    # Not using lang_code == f'a-{trans_code}' here for future-proofing
-                    orig_lang = parse_qs(base_url).get('lang', [None])[-1]
                     process_language(automatic_captions, base_url, trans_code, trans_name,
-                                     {} if orig_lang == trans_code else {'tlang': trans_code})
+                                     {} if orig_lang == orig_trans_code else {'tlang': trans_code})
             info['automatic_captions'] = automatic_captions
             info['subtitles'] = subtitles
 

yt_dlp/options.py

@@ -338,7 +338,7 @@ def create_parser():
         action='callback', callback=_set_from_options_callback,
         callback_kwargs={
             'allowed_values': {
-                'filename', 'format-sort', 'abort-on-error', 'format-spec', 'no-playlist-metafiles',
+                'filename', 'filename-sanitization', 'format-sort', 'abort-on-error', 'format-spec', 'no-playlist-metafiles',
                 'multistreams', 'no-live-chat', 'playlist-index', 'list-formats', 'no-direct-merge',
                 'no-youtube-channel-redirect', 'no-youtube-unavailable-videos', 'no-attach-info-json', 'embed-metadata',
                 'embed-thumbnail-atomicparsley', 'seperate-video-versions', 'no-clean-infojson', 'no-keep-subs', 'no-certifi',

yt_dlp/postprocessor/ffmpeg.py

@@ -553,9 +553,9 @@ class FFmpegVideoConvertorPP(FFmpegPostProcessor):
 
     @staticmethod
     def _options(target_ext):
+        yield from FFmpegPostProcessor.stream_copy_opts(False)
         if target_ext == 'avi':
-            return ['-c:v', 'libxvid', '-vtag', 'XVID']
-        return []
+            yield from ('-c:v', 'libxvid', '-vtag', 'XVID')
 
     @PostProcessor._restrict_to(images=False)
     def run(self, info):
@@ -1129,6 +1129,8 @@ class FFmpegConcatPP(FFmpegPostProcessor):
         super().__init__(downloader)
 
     def concat_files(self, in_files, out_file):
+        if not self._downloader._ensure_dir_exists(out_file):
+            return
         if len(in_files) == 1:
             if os.path.realpath(in_files[0]) != os.path.realpath(out_file):
                 self.to_screen(f'Moving "{in_files[0]}" to "{out_file}"')

yt_dlp/utils.py

@@ -705,36 +705,40 @@ def timeconvert(timestr):
     return timestamp
 
 
-def sanitize_filename(s, restricted=False, is_id=False):
+def sanitize_filename(s, restricted=False, is_id=NO_DEFAULT):
     """Sanitizes a string so it could be used as part of a filename.
-    If restricted is set, use a stricter subset of allowed characters.
-    Set is_id if this is not an arbitrary string, but an ID that should be kept
-    if possible.
+    @param restricted   Use a stricter subset of allowed characters
+    @param is_id        Whether this is an ID that should be kept unchanged if possible.
+                        If unset, yt-dlp's new sanitization rules are in effect
     """
+    if s == '':
+        return ''
+
     def replace_insane(char):
         if restricted and char in ACCENT_CHARS:
             return ACCENT_CHARS[char]
         elif not restricted and char == '\n':
-            return ' '
+            return '\0 '
         elif char == '?' or ord(char) < 32 or ord(char) == 127:
             return ''
         elif char == '"':
             return '' if restricted else '\''
         elif char == ':':
-            return '_-' if restricted else ' -'
+            return '\0_\0-' if restricted else '\0 \0-'
         elif char in '\\/|*<>':
-            return '_'
-        if restricted and (char in '!&\'()[]{}$;`^,#' or char.isspace()):
-            return '_'
-        if restricted and ord(char) > 127:
-            return '_'
+            return '\0_'
+        if restricted and (char in '!&\'()[]{}$;`^,#' or char.isspace() or ord(char) > 127):
+            return '\0_'
         return char
 
-    if s == '':
-        return ''
-    # Handle timestamps
-    s = re.sub(r'[0-9]+(?::[0-9]+)+', lambda m: m.group(0).replace(':', '_'), s)
+    s = re.sub(r'[0-9]+(?::[0-9]+)+', lambda m: m.group(0).replace(':', '_'), s)  # Handle timestamps
     result = ''.join(map(replace_insane, s))
+    if is_id is NO_DEFAULT:
+        result = re.sub('(\0.)(?:(?=\\1)..)+', r'\1', result)  # Remove repeated substitute chars
+        STRIP_RE = '(?:\0.|[ _-])*'
+        result = re.sub(f'^\0.{STRIP_RE}|{STRIP_RE}\0.$', '', result)  # Remove substitute chars from start/end
+    result = result.replace('\0', '') or '_'
+
     if not is_id:
         while '__' in result:
             result = result.replace('__', '_')