packagecom.z.z.utils;/** ：Created by z on 2020-08-31*/
importandroid.content.Context;importandroid.graphics.Bitmap;importandroid.media.MediaMetadataRetriever;importandroid.util.Log;importandroid.widget.ImageView;importandroidx.annotation.NonNull;importcom.bumptech.glide.Glide;importcom.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;importcom.bumptech.glide.load.resource.bitmap.BitmapTransformation;importcom.bumptech.glide.load.resource.bitmap.VideoDecoder;importcom.bumptech.glide.request.RequestOptions;importjava.security.MessageDigest;importjava.util.HashMap;public classVideoFrameTool {private staticVideoFrameTool instance;public staticVideoFrameTool getInstance() {if (instance == null) {
instance= newVideoFrameTool();
}returninstance;
}/*** 获取网络视频第一帧
*
*@paramvideoUrl
*@return
*/
public voidloadFirst(String videoUrl, @NonNull ImageView cover) {
Bitmap bitmap= null;
MediaMetadataRetriever retriever= newMediaMetadataRetriever();try{//根据url获取缩略图
retriever.setDataSource(videoUrl, newHashMap());//获得第一帧图片
bitmap =retriever.getFrameAtTime();
}catch(IllegalArgumentException e) {//e.printStackTrace();
Log.e(“zhu”, e.toString());
}finally{
retriever.release();
}if (bitmap != null) {
cover.setImageBitmap(bitmap);
}
}/*** context 上下文
* uri 视频地址
* imageView 设置image
* frameTimeMicros 获取某一时间帧*/
public void loadFirstWithGlide(final Context context, String uri, ImageView imageView, longframeTimeMicros) {
RequestOptions requestOptions=RequestOptions.frameOf(frameTimeMicros);
requestOptions.set(VideoDecoder.FRAME_OPTION, MediaMetadataRetriever.OPTION_CLOSEST);
requestOptions.transform(newBitmapTransformation() {
@Overrideprotected Bitmap transform(@NonNull BitmapPool pool, @NonNull Bitmap toTransform, int outWidth, intoutHeight) {returntoTransform;
}
@Overridepublic voidupdateDiskCacheKey(MessageDigest messageDigest) {try{
messageDigest.update((context.getPackageName()+ “RotateTransform”).getBytes(“utf-8”));
}catch(Exception e) {
e.printStackTrace();
}
}
});
Glide.with(context).load(uri).apply(requestOptions).into(imageView);
}/*** 获取本地视频的第一帧
*
*@paramlocalPath
*@return
*/
publicBitmap getLocalVideoBitmap(String localPath) {
Bitmap bitmap= null;
MediaMetadataRetriever retriever= newMediaMetadataRetriever();try{//根据文件路径获取缩略图
retriever.setDataSource(localPath);//获得第一帧图片
bitmap =retriever.getFrameAtTime();
}catch(IllegalArgumentException e) {
e.printStackTrace();
}finally{
retriever.release();
}returnbitmap;
}
}