getManifest method

Future<ClosedCaptionManifest> getManifest(dynamic videoId, { @Deprecated('Not used anymore, use track.isAutoGenerated to see if a track is autogenerated or not.') bool autoGenerated = false, List<ClosedCaptionFormat> formats = const [ClosedCaptionFormat.srv1, ClosedCaptionFormat.srv2, ClosedCaptionFormat.srv3, ClosedCaptionFormat.ttml, ClosedCaptionFormat.vtt], })

Gets the manifest that contains information about available closed caption tracks in the specified video.

Implementation

Future<ClosedCaptionManifest> getManifest(
    dynamic videoId,
    {@Deprecated('Not used anymore, use track.isAutoGenerated to see if a track is autogenerated or not.') // ignore: lines_longer_than_80_chars
        bool autoGenerated = false,
    List<ClosedCaptionFormat> formats = const [
      ClosedCaptionFormat.srv1,
      ClosedCaptionFormat.srv2,
      ClosedCaptionFormat.srv3,
      ClosedCaptionFormat.ttml,
      ClosedCaptionFormat.vtt
    ]}) async {
  videoId = VideoId.fromString(videoId);
  var tracks = <ClosedCaptionTrackInfo>{};
  var watchPage =
      await WatchPage.get(_httpClient, (videoId as VideoId).value);
  var playerResponse = watchPage.playerResponse!;

  for (final track in playerResponse.closedCaptionTrack) {
    for (final ext in formats) {
      tracks.add(ClosedCaptionTrackInfo(
          Uri.parse(track.url)
              .replaceQueryParameters({'fmt': ext.formatCode}),
          Language(track.languageCode, track.languageName ?? ''),
          isAutoGenerated: track.autoGenerated,
          format: ext));
    }
  }
  return ClosedCaptionManifest(tracks);
}