Android 获取视频缩略图

1.引用第三方库

   implementation 'com.github.wseemann:FFmpegMediaMetadataRetriever:1.0.14'

2.实现

/**
     * 获取本地视频缩略图
     *
     * @param filePath
     * @return
     */
    public static Bitmap getVideoThumbnail(String filePath) {
        Log.d(TAG, "getVideoThumbnail:" + filePath);
        Bitmap b = null;
        //FFmpegMediaMetadataRetriever
        FFmpegMediaMetadataRetriever retriever = new FFmpegMediaMetadataRetriever();
        File file = new File(filePath);
        try {
            retriever.setDataSource(file.getPath());
            b = retriever.getFrameAtTime(1000 * 1000, MediaMetadataRetriever.OPTION_CLOSEST_SYNC);//微秒
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (RuntimeException e) {
            e.printStackTrace();

        } finally {
            try {
                retriever.release();
            } catch (RuntimeException e) {
                e.printStackTrace();
            }
        }
        return b;
    }
    
 /**
     * Bitmap保存成File
     *
     * @param bitmap input bitmap
     * @param name   output file's name
     * @return String output file's path
     */

    public static String bitmap2File(Bitmap bitmap, String name) {

        File f = new File(Api.UPanFilePathPrefix + "/Bus/video/" + name + ".jpg");

        if (f.exists()) f.delete();

        FileOutputStream fOut = null;

        try {

            fOut = new FileOutputStream(f);

            bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fOut);

            fOut.flush();

            fOut.close();

        } catch (IOException e) {

            return null;

        }

        return f.getAbsolutePath();

    }