[utils, cleanup] Consolidate known media extensions

[yt-dlp.git] / yt_dlp / options.py

diff --git a/yt_dlp/options.py b/yt_dlp/options.py
index 1e23e2b98cda6327f751fbebd2c5ab77b1cbcc2a..43d1af96df18deab89ad4c69f97c17cb8a857589 100644 (file)
--- a/yt_dlp/options.py
+++ b/yt_dlp/options.py
@@ -972,7 +972,7 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
         }, help=(
             'Name or path of the external downloader to use (optionally) prefixed by '
             'the protocols (http, ftp, m3u8, dash, rstp, rtmp, mms) to use it for. '
-            f'Currently supports native, {", ".join(list_external_downloaders())}. '
+            f'Currently supports native, {", ".join(sorted(list_external_downloaders()))}. '
             'You can use this option multiple times to set different downloaders for different protocols. '
             'For example, --downloader aria2c --downloader "dash,m3u8:native" will use '
             'aria2c for http/ftp downloads, and the native downloader for dash/m3u8 downloads '
@@ -1469,7 +1469,7 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
         '--audio-format', metavar='FORMAT', dest='audioformat', default='best',
         help=(
             'Format to convert the audio to when -x is used. '
-            f'(currently supported: best (default), {", ".join(FFmpegExtractAudioPP.SUPPORTED_EXTS)}). '
+            f'(currently supported: best (default), {", ".join(sorted(FFmpegExtractAudioPP.SUPPORTED_EXTS))}). '
             'You can specify multiple rules using similar syntax as --remux-video'))
     postproc.add_option(
         '--audio-quality', metavar='QUALITY',
@@ -1652,13 +1652,13 @@ def _alias_callback(option, opt_str, value, parser, opts, nargs):
         metavar='FORMAT', dest='convertsubtitles', default=None,
         help=(
             'Convert the subtitles to another format (currently supported: %s) '
-            '(Alias: --convert-subtitles)' % ', '.join(FFmpegSubtitlesConvertorPP.SUPPORTED_EXTS)))
+            '(Alias: --convert-subtitles)' % ', '.join(sorted(FFmpegSubtitlesConvertorPP.SUPPORTED_EXTS))))
     postproc.add_option(
         '--convert-thumbnails',
         metavar='FORMAT', dest='convertthumbnails', default=None,
         help=(
             'Convert the thumbnails to another format '
-            f'(currently supported: {", ".join(FFmpegThumbnailsConvertorPP.SUPPORTED_EXTS)}). '
+            f'(currently supported: {", ".join(sorted(FFmpegThumbnailsConvertorPP.SUPPORTED_EXTS))}). '
             'You can specify multiple rules using similar syntax as --remux-video'))
     postproc.add_option(
         '--split-chapters', '--split-tracks',