iOS 开发如何给直播流添加动效? - V2EX
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rickll
V2EX    iDev

iOS 开发如何给直播流添加动效?

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  •   rickll Dec 16, 2022 5251 views
    This topic created in 1249 days ago, the information mentioned may be changed or developed.
    具体需求是在采集到的视频流上添加动画效果(这个动画效果可能是 gif 、或者一个视频)叠加到直播流上。 这个效果是需要推送到直播服务器的。

    我能想到的方案是在采集端对 CMSampleBuffer 进行每一帧处理,合成图片。 但是这样的效果性能消耗太大,加上不是很好处理动画效果跟直播流帧的关系。

    大家有咩有其他更好的方案呢?
    andyskaura
        1
    andyskaura  
       Dec 16, 2022
    可以在 c 端用 canvas 播放
    andyskaura
        2
    andyskaura  
       Dec 16, 2022
    @andyskaura #1 不好意思 我以为是 web 打扰了
    holy_sin
        3
    holy_sin  
       Dec 16, 2022
    拿到主播端的 pixelbuffer ,用 gl blend 一下 git 或着视频 再推出去。
    rickll
        4
    rickll  
    OP
       Dec 16, 2022
    @andyskaura 就是不能在 C 端播放,需要在主播端 推流上去
    rickll
        5
    rickll  
    OP
       Dec 16, 2022
    @holy_sin 不是很明白,能详细说说吗?
    96HN29Sby9aZ0g81
        6
    96HN29Sby9aZ0g81  
       Jan 10, 2023
    简单的说就是把你要直播的 gif 动画或者视频转换为流式数据,然后跟直播方式一样进行推流
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