Chromecast MediaTrack

Question

如何将字幕加载到chromecast Media player？

List<MediaTrack> subs = new ArrayList<MediaTrack>();
... MediaTrack.Builder(long trackid, MediaTrack.TYPE_TEXT);

我不知道如何获得trackid....

编辑：

long subId = 12;
long[] subIds = {subId};
MediaTrack track = new MediaTrack.Builder(subId,MediaTrack.TYPE_TEXT).setContentId("http://example.com/abc.srt").build();
    subs.add(track);
...
mediaInfo.setMediaTracks(subs);
...
mRemoteMediaPlayer.setActiveMediaTracks(mApiClient,subIds);

字幕未显示

Answer 1

根据新的文档-您必须将语言设置为subtitle：

  MediaTrack englishSubtitle = new MediaTrack.Builder(1 /* ID */, MediaTrack.TYPE_TEXT)
  .setName("English Subtitle")
  .setSubtype(MediaTrack.SUBTYPE_SUBTITLE)
  .setContentId("https://some-url/caption_en.vtt")
  /* language is required for subtitle type but optional otherwise */
  .setLanguage("en-US")
  .build();

Answer 2

trackId是您在为MediaInfo构建轨迹时在轨迹上设置的东西；它是您设置的唯一标识符，以便以后可以引用该轨迹。