blocks|key|4636531|text|这是不可能创建缩略图从蒸汽链接，你必须显示它从服务器。最好沿着视频上传一个缩略图。使用以下代码生成缩略图|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4636532|Bitmap+bitmap+=+ThumbnailUtils.createVideoThumbnail("picturePath",+MediaStore.Video.Thumbnails.MINI_KIND);|code-block|syntax|javascript|4636533|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

It is not possible to create thumbnail from steaming link, you have to show it from server. Better upload a thumbnail along the video.
Use the below code to generate thumbnail

<pre><code>Bitmap bitmap = ThumbnailUtils.createVideoThumbnail("picturePath", MediaStore.Video.Thumbnails.MINI_KIND);
</code></pre>

blocks|key|4636585|text|我在glide上试过了，Glide版本的4.3.1|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4636586|++++GlideApp.with(context)
++++++++++++++++.asBitmap()
++++++++++++++++.load(FILE_URL)
++++++++++++++++.diskCacheStrategy(DiskCacheStrategy.DATA)
++++++++++++++++.into(iv_picture);|code-block|syntax|javascript|4636587|编辑:+Glide对我来说工作很慢|4636588|最好的答案是没有给出一些视频的结果，下面是我是如何做到的|4636589|MediaMetadataRetriever+retriever+=+new+MediaMetadataRetriever();
+//give+YourVideoUrl+below
retriever.setDataSource("YourVideoUrl",+new+HashMap<String,+String>());
//+this+gets+frame+at+2nd+second
Bitmap+image+=+retriever.getFrameAtTime(2000000,+MediaMetadataRetriever.OPTION_CLOSEST_SYNC);+
//use+this+bitmap+image|4636590|entityMap^0|K|5|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|W|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|X|8|@]|D|@]|E|$]]|$1|O|3|P|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|Q|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|R|$]]

I tried this with glide and it worked , Glide version <code>4.3.1</code>

<pre><code> GlideApp.with(context)
 .asBitmap()
 .load(FILE_URL)
 .diskCacheStrategy(DiskCacheStrategy.DATA)
 .into(iv_picture);
</code></pre>

Edit : Glide was working slow for me

The Top answer was not giving result for some videos , here is how i did it

<pre><code>MediaMetadataRetriever retriever = new MediaMetadataRetriever();
 //give YourVideoUrl below
retriever.setDataSource("YourVideoUrl", new HashMap&lt;String, String&gt;());
// this gets frame at 2nd second
Bitmap image = retriever.getFrameAtTime(2000000, MediaMetadataRetriever.OPTION_CLOSEST_SYNC); 
//use this bitmap image
</code></pre>

blocks|key|130289|text|Bitmap+bitmap+=+ThumbnailUtils.createVideoThumbnail("VIDEO+FILE+ADDRESS",+MediaStore.Video.Thumbnails.MINI_KIND);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|130290|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>Bitmap bitmap = ThumbnailUtils.createVideoThumbnail(&quot;VIDEO FILE ADDRESS&quot;, MediaStore.Video.Thumbnails.MINI_KIND);
</code></pre>

blocks|key|4636631|text|这个方法会给你手机里所有视频文件的缩略图...请随时提问。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4636632|public+static+Bitmap[]+getThumbnail(Context+context){
++++++++Uri+uri=MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
++++++++String[]+projection=new+String[]+{+MediaStore.Video.Thumbnails._ID+};
++++++++Cursor+ca+=+context.getContentResolver().query(uri,+projection,+null,+null,+null);
++++++++Bitmap[]+b=new+Bitmap[ca.getCount()];
++++++++int+i=0;
++++++++ca.moveToFirst();
++++++++while(i<ca.getCount())+{
++++++++++++int+id+=+ca.getInt(ca.getColumnIndex(MediaStore.Video.Thumbnails._ID));
++++++++++++b[i%2B%2B]=MediaStore.Video.Thumbnails.getThumbnail(context.getContentResolver(),id,+MediaStore.Images.Thumbnails.MINI_KIND,+null+);
++++++++++++ca.moveToNext();
++++++++}
++++++++ca.close();
++++++++return+b;
++++}|code-block|syntax|javascript|4636633|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This method will give you thumbnails of all the video files in your phone... feel free to ask questions

<pre><code>public static Bitmap[] getThumbnail(Context context){
 Uri uri=MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
 String[] projection=new String[] { MediaStore.Video.Thumbnails._ID };
 Cursor ca = context.getContentResolver().query(uri, projection, null, null, null);
 Bitmap[] b=new Bitmap[ca.getCount()];
 int i=0;
 ca.moveToFirst();
 while(i&lt;ca.getCount()) {
 int id = ca.getInt(ca.getColumnIndex(MediaStore.Video.Thumbnails._ID));
 b[i++]=MediaStore.Video.Thumbnails.getThumbnail(context.getContentResolver(),id, MediaStore.Images.Thumbnails.MINI_KIND, null );
 ca.moveToNext();
 }
 ca.close();
 return b;
 }
</code></pre>

blocks|key|4636648|text|这是最好的解决方案|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4636649|"https://img.youtube.com/vi/“%2B+videoID+%2B+"/0.jpg”|offset|length|4636650|这是你从youtube+Url得到的videoID。|4636651|entityMap|0|LINK|mutability|MUTABLE|url|https://img.youtube.com/vi/^0|0|1|R|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@$D|R|E|S|1|T]]|A|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

Here is the best solution
&quot;https://img.youtube.com/vi/&quot; + videoID + &quot;/0.jpg&quot;
Here videoID you get from youtube Url.

blocks|key|4636550|text|我们在Android手机中获取所有的视频。http://sunilkmrnishad.blogspot.in/2017/03/read-files-apps-photos-media-from.html|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4636551|public+class+ThumbnailExtract+extends+AsyncTask<String,+long[],+Bitmap>+{

++++private+final+String+videoUrl;
++++private+final+ImageView+mThumbnail;
++++private+final+boolean+mIsVideo;
++++private+MediaMetadataRetriever+mmr;

++++public+ThumbnailExtract(String+videoLocalUrl,+ImageView+thumbnail,+boolean+isVideo)+{
++++++++this.videoUrl+=+videoLocalUrl;
++++++++mThumbnail+=+thumbnail;
++++++++mIsVideo+=+isVideo;
++++++++if+(!isVideo)+{
++++++++++++mmr+=+new+MediaMetadataRetriever();
++++++++}
++++}

++++@Override
++++protected+Bitmap+doInBackground(String...+params)+{
++++++++if+(!mIsVideo)+{
++++++++++++return+getBitmap(videoUrl);
++++++++}+else+{
++++++++++++return+ThumbnailUtils.createVideoThumbnail(videoUrl,
++++++++++++++++++++MediaStore.Images.Thumbnails.MINI_KIND);
++++++++}
++++}

++++@Override
++++protected+void+onPostExecute(Bitmap+thumb)+{
++++++++if+(thumb+!=+null)+{
++++++++++++mThumbnail.setImageBitmap(thumb);
++++++++}
++++}

++++private+Bitmap+getBitmap(String+fileUrl)+{
++++++++mmr.setDataSource(fileUrl);
++++++++byte[]+data+=+mmr.getEmbeddedPicture();
++++++++Bitmap+bitmap+=+null;
++++++++//+convert+the+byte+array+to+a+bitmap
++++++++if+(data+!=+null)+{
++++++++++++bitmap+=+BitmapFactory.decodeByteArray(data,+0,+data.length);

++++++++}
++++++++return+bitmap+!=+null+?+ScalingUtilities.createScaledBitmap(bitmap,+40,+40,+ScalingUtilities.ScalingLogic.FIT)+:+bitmap;
++++}
}|code-block|syntax|javascript|4636552|entityMap|0|LINK|mutability|MUTABLE|url|http://sunilkmrnishad.blogspot.in/2017/03/read-files-apps-photos-media-from.html^0|L|28|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

We fetch all video in Android Phone. <a href="http://sunilkmrnishad.blogspot.in/2017/03/read-files-apps-photos-media-from.html" rel="nofollow noreferrer">http://sunilkmrnishad.blogspot.in/2017/03/read-files-apps-photos-media-from.html</a>

<pre><code>public class ThumbnailExtract extends AsyncTask&lt;String, long[], Bitmap&gt; {

 private final String videoUrl;
 private final ImageView mThumbnail;
 private final boolean mIsVideo;
 private MediaMetadataRetriever mmr;

 public ThumbnailExtract(String videoLocalUrl, ImageView thumbnail, boolean isVideo) {
 this.videoUrl = videoLocalUrl;
 mThumbnail = thumbnail;
 mIsVideo = isVideo;
 if (!isVideo) {
 mmr = new MediaMetadataRetriever();
 }
 }

 @Override
 protected Bitmap doInBackground(String... params) {
 if (!mIsVideo) {
 return getBitmap(videoUrl);
 } else {
 return ThumbnailUtils.createVideoThumbnail(videoUrl,
 MediaStore.Images.Thumbnails.MINI_KIND);
 }
 }

 @Override
 protected void onPostExecute(Bitmap thumb) {
 if (thumb != null) {
 mThumbnail.setImageBitmap(thumb);
 }
 }

 private Bitmap getBitmap(String fileUrl) {
 mmr.setDataSource(fileUrl);
 byte[] data = mmr.getEmbeddedPicture();
 Bitmap bitmap = null;
 // convert the byte array to a bitmap
 if (data != null) {
 bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);

 }
 return bitmap != null ? ScalingUtilities.createScaledBitmap(bitmap, 40, 40, ScalingUtilities.ScalingLogic.FIT) : bitmap;
 }
}
</code></pre>

I am working on a video app. I am streaming a video from server link , is it possible for me to generate a video thumbnail from the URL without downloading the video.

Is it possible to Generate a thumbnail from a video url in android

服务器

Android

我正在开发一个视频应用程序。我正在从服务器链接流式传输视频，是否可以让我从URL生成视频缩略图，而无需下载视频。

问在android中可以从视频url生成缩略图吗？
EN

回答 6

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问在android中可以从视频url生成缩略图吗？EN

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问在android中可以从视频url生成缩略图吗？
EN