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Add subtitle metadata and improve downloader UI

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Expose subtitle information in the API and update the frontend to use it: backend adds subtitle_languages and has_subtitles to the downloader serializer/response (computed from subtitles and automatic_captions). Generated TypeScript models (public & private) now include these fields. Downloader UI: gather available subtitle languages, show a select when languages exist, provide contextual input/placeholder when only auto-captions exist, and disable/annotate embed controls when subtitles or thumbnails are unavailable. These changes enable subtitle selection/embedding and surface thumbnail availability to users.
This commit is contained in:
David Bruno Vontor
2026-05-11 00:53:24 +02:00
parent f8150eeda7
commit e1df55df0e
4 changed files with 105 additions and 23 deletions
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16
backend/thirdparty/downloader/views.py vendored
View File

@@ -96,6 +96,13 @@ class Downloader(APIView):
child=serializers.CharField(),
help_text="List of available audio format options"
),
"subtitle_languages": serializers.ListField(
child=serializers.CharField(),
help_text="List of manually available subtitle language codes (e.g., 'en', 'cs')"
),
"has_subtitles": serializers.BooleanField(
help_text="True if any subtitles or auto-captions are available"
),
}
),
help_text="Array of video information (single video for individual URLs, multiple for playlists)"
@@ -177,13 +184,20 @@ class Downloader(APIView):
# If thumbnail fetch fails, just continue without it
pass
subtitles_data = video_data.get("subtitles") or {}
auto_captions = video_data.get("automatic_captions") or {}
subtitle_languages = sorted(subtitles_data.keys())
has_subtitles = bool(subtitles_data) or bool(auto_captions)
return {
"id": video_data.get("id", ""),
"title": video_data.get("title", ""),
"duration": video_data.get("duration"),
"thumbnail": thumbnail_blob, # Now a base64 blob instead of URL
"thumbnail": thumbnail_blob,
"video_resolutions": video_resolutions,
"audio_resolutions": audio_resolutions,
"subtitle_languages": subtitle_languages,
"has_subtitles": has_subtitles,
}
# Check if this is a playlist