ffmpegmediametadataretriever将实现您想要的功能，它与api 7+一起工作：

FFmpegMediaMetadataRetriever retriever = new FFmpegMediaMetadataRetriever();
try {
    retriever.setDataSource(filePath);
    //here 5 means frame at the 5th sec.
    bitmap = retriever.getFrameAtTime(5);
} catch (Exception ex) {
    // Assume this is a corrupt video file
}

是的，你可以从下面走。。

MediaMetadataRetriever retriever = new MediaMetadataRetriever();
try {
   retriever.setDataSource(filePath);
   //here 5 means frame at the 5th sec.
    bitmap = retriever.getFrameAtTime(5);
    } catch (Exception ex) {
   // Assume this is a corrupt video file
}

有关更多信息，请查看mediametadataretriever