在视频仍在播放视频时，用外字幕切换视频字幕

发布于 2025-02-10 22:14:05 字数 994 浏览 0 评论 0原文

假设我有两个视频字幕，当视频播放而不重置播放器本身时，如何切换外部字幕？例如，例如，当用户单击按钮时，

请按照

binding.button.setOnClickListener {
    val k = player.currentPosition // Get the latest player's current position
    subtitle = SubtitleConfiguration.Builder(newSubtitleUri)
        .setMimeType(MimeTypes.APPLICATION_SUBRIP)
        .setSelectionFlags(C.SELECTION_FLAG_DEFAULT)
        .build()
    mediaItem = MediaItem.Builder()
        .setUri(videoUri)
        .setSubtitleConfigurations(ImmutableList.of(subtitle))
        .build()
    player.setMediaItem(mediaItem)
    player.prepare()
    player.seekTo(k) // seek to the latest position, if we don't do this it would just play back to the beginning of the video
}

这是一个缺点，因为玩家一旦将黑屏拆分一秒钟，然后返回最新的播放器位置。我想更改字幕而不代表视频，因此字幕切换可以是无缝的，并且不会导致我指的是我所指的分裂黑屏。

此github问题post 告诉我，当前的Exoplayer不支持此问题。但是，嘿，如果YouTube可以做到，为什么不能？

原文

Let's say I have two subtitles for a video, how do you switch an exoplayer's subtitles while the video is playing without resetting the player itself? Like for an example when a user click a button

By following the exoplayer documentation, my current implementation is like this:

binding.button.setOnClickListener {
    val k = player.currentPosition // Get the latest player's current position
    subtitle = SubtitleConfiguration.Builder(newSubtitleUri)
        .setMimeType(MimeTypes.APPLICATION_SUBRIP)
        .setSelectionFlags(C.SELECTION_FLAG_DEFAULT)
        .build()
    mediaItem = MediaItem.Builder()
        .setUri(videoUri)
        .setSubtitleConfigurations(ImmutableList.of(subtitle))
        .build()
    player.setMediaItem(mediaItem)
    player.prepare()
    player.seekTo(k) // seek to the latest position, if we don't do this it would just play back to the beginning of the video
}

This has a downside, for once the player would show a black screen for a split second and return to the latest player position. I want to change the subtitle without repreparing the video, so the subtitle switching can be seamless and it wouldn't lead to the split-second black screen I was referring about.

This GitHub issue post tells me that exoplayer doesn't support this currently. But hey, if YouTube could do it, why couldn't I?

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