视频逐帧搜索
有没有办法逐帧浏览视频文件？我尝试过使用 VideoView 并且取得了小小的成功。我可以通过关键帧而不是单个帧来获取视频。我认为这将是默认设置，尤其是视频压缩的工作方式。有没有办法覆盖此默认行为或我可以更改的配置？
Is there a way to step through a video file frame by frame? I've tried using a VideoView and I've had minor success. I can get the video the step through key frames but not individual frames. I figured this would be the default settings, especially with the way video compression works. Is there a way to override this default behavior or a configuration I can change?
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stagefright 媒体框架中的默认行为始终是寻找关键帧。 （与早期框架相反 - opencore 的默认搜索行为是寻找时间。）
您无法使用 Android 提供的 MediaPlayer API 进行逐帧搜索。
如果您确实想实现逐帧搜索，那么您将必须使用 FFMPEG 等第 3 方多媒体框架，或者您需要实现自己的框架。
The default behaviour in stagefright media framework is always to seek to key frame. (As opposed to the earlier framework's - opencore whose default seeking behaviour was to seek to time.)
You cannot do frame by frame seeking by using the MediaPlayer API's provided by Android.
If you really want implement frame by frame seeking then you will have to use a 3rd party multimedia framework like FFMPEG or you will need to implement your own.
您看过 MediaMetadataRetriever 吗？您可以在此处使用 getFrameAtTime(long timeUs, int option) 并返回位图。
根据用途，也许这就是您所需要的。
Have you looked at MediaMetadataRetriever ? There you can use
getFrameAtTime(long timeUs, int option)and return aBitmap.Depending of the use, maybe it's what you need.