Android Is it possible to display video thumbnails

Question

I created a video recording application with library dialog  The library dialog displays the list of recorded videos where each item consists of icon  video title  tags and location information the following way     Does anyone know whether it is possible to replace icons with video thumbnails  single frame preview    Thanks

User · Answer

Try this it s working for me  RequestOptions requestOptions   new RequestOptions     Glide with getContext           load  video url          apply requestOptions         thumbnail Glide with getContext    load  video url           into  yourimageview

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This solution will work for any version of Android  It has proven to work in 1 5 and 2 2 This is not another  This is for Android 2 0   solution  I found this through an email message board collection page and cannot find the original link  All credit goes to the original poster   In your app you would use this by calling   Bitmap bm   getVideoFrame VideoStringUri     Somewhere in it s own function  outside the OnCreate  ect   you would need    private Bitmap getVideoFrame String uri            MediaMetadataRetriever retriever   new MediaMetadataRetriever            try               retriever setMode MediaMetadataRetriever MODE CAPTURE FRAME ONLY               retriever setDataSource uri               return retriever captureFrame              catch  IllegalArgumentException ex                ex printStackTrace              catch  RuntimeException ex                ex printStackTrace              finally               try                   retriever release                  catch  RuntimeException ex                                    return null          In your src folder  you need a new subdirectory android media which will house the class  copied from the android source itself  which allows you to use this function  This part should not be changed  renamed  or placed anywhere else  MediaMetadataRetriever java needs to be under android media in your source folder for this all to work         Copyright  C  2008 The Android Open Source Project       Licensed under the Apache License  Version 2 0  the  License       you may not use this file except in compliance with the License     You may obtain a copy of the License at            http   www apache org licenses LICENSE-2 0       Unless required by applicable law or agreed to in writing  software    distributed under the License is distributed on an  AS IS  BASIS     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND  either express or implied     See the License for the specific language governing permissions and    limitations under the License       package android media   import java io FileDescriptor  import java io FileNotFoundException  import java io IOException   import android content ContentResolver  import android content Context  import android content res AssetFileDescriptor  import android graphics Bitmap  import android net Uri          MediaMetadataRetriever class provides a unified interface for retrieving    frame and meta data from an input media file    hide      public class MediaMetadataRetriever       static           System loadLibrary  media jni            native init                  The field below is accessed by native methods     private int mNativeContext       public MediaMetadataRetriever             native setup                          Call this method before setDataSource   so that the mode becomes        effective for subsequent operations  This method can be called only once        at the beginning if the intended mode of operation for a        MediaMetadataRetriever object remains the same for its whole lifetime         and thus it is unnecessary to call this method each time setDataSource          is called  If this is not never called  which is allowed   by default the        intended mode of operation is to both capture frame and retrieve meta        data  i e   MODE GET METADATA ONLY   MODE CAPTURE FRAME ONLY   Often         this may not be what one wants  since doing this has negative performance        impact on execution time of a call to setDataSource    since both types        of operations may be time consuming                  param mode                   The intended mode of operation  Can be any combination of                   MODE GET METADATA ONLY and MODE CAPTURE FRAME ONLY  1                    MODE GET METADATA ONLY  amp  MODE CAPTURE FRAME ONLY  For neither                   frame capture nor meta data retrieval 2                    MODE GET METADATA ONLY  For meta data retrieval only 3                    MODE CAPTURE FRAME ONLY  For frame capture only 4                    MODE GET METADATA ONLY   MODE CAPTURE FRAME ONLY  For both                   frame capture and meta data retrieval             public native void setMode int mode                    return the current mode of operation  A negative return value indicates                some runtime error has occurred              public native int getMode                    Sets the data source  file pathname  to use  Call this method before the        rest of the methods in this class  This method may be time-consuming                  param path                   The path of the input media file          throws IllegalArgumentException                    If the path is invalid              public native void setDataSource String path              throws IllegalArgumentException                  Sets the data source  FileDescriptor  to use  It is the caller s        responsibility to close the file descriptor  It is safe to do so as soon        as this call returns  Call this method before the rest of the methods in        this class  This method may be time-consuming                  param fd                   the FileDescriptor for the file you want to play         param offset                   the offset into the file where the data to be played starts                    in bytes  It must be non-negative         param length                   the length in bytes of the data to be played  It must be                   non-negative          throws IllegalArgumentException                    if the arguments are invalid             public native void setDataSource FileDescriptor fd  long offset  long length              throws IllegalArgumentException                  Sets the data source  FileDescriptor  to use  It is the caller s        responsibility to close the file descriptor  It is safe to do so as soon        as this call returns  Call this method before the rest of the methods in        this class  This method may be time-consuming                  param fd                   the FileDescriptor for the file you want to play         throws IllegalArgumentException                    if the FileDescriptor is invalid             public void setDataSource FileDescriptor fd              throws IllegalArgumentException              intentionally less than LONG MAX         setDataSource fd  0  0x7ffffffffffffffL                         Sets the data source as a content Uri  Call this method before the rest        of the methods in this class  This method may be time-consuming                  param context                   the Context to use when resolving the Uri         param uri                   the Content URI of the data you want to play         throws IllegalArgumentException                    if the Uri is invalid         throws SecurityException                    if the Uri cannot be used due to lack of permission              public void setDataSource Context context  Uri uri              throws IllegalArgumentException  SecurityException           if  uri    null                throw new IllegalArgumentException                       String scheme   uri getScheme            if  scheme    null    scheme equals  file                  setDataSource uri getPath                 return                     AssetFileDescriptor fd   null          try               ContentResolver resolver   context getContentResolver                try                   fd   resolver openAssetFileDescriptor uri   r                  catch  FileNotFoundException e                    throw new IllegalArgumentException                              if  fd    null                    throw new IllegalArgumentException                              FileDescriptor descriptor   fd getFileDescriptor                if   descriptor valid                      throw new IllegalArgumentException                                 Note  using getDeclaredLength so that our behavior is the same                as previous versions when the content provider is returning                a full file              if  fd getDeclaredLength    lt  0                    setDataSource descriptor                 else                   setDataSource descriptor  fd getStartOffset                            fd getDeclaredLength                               return            catch  SecurityException ex              finally               try                   if  fd    null                        fd close                                    catch  IOException ioEx                                    setDataSource uri toString                           Call this method after setDataSource    This method retrieves the meta        data value associated with the keyCode                 The keyCode currently supported is listed below as METADATA XXX        constants  With any other value  it returns a null pointer                  param keyCode                   One of the constants listed below at the end of the class          return The meta data value associate with the given keyCode on success                 null on failure              public native String extractMetadata int keyCode                   Call this method after setDataSource    This method finds a        representative frame if successful and returns it as a bitmap  This is        useful for generating a thumbnail for an input media source                  return A Bitmap containing a representative video frame  which can be                null  if such a frame cannot be retrieved              public native Bitmap captureFrame                    Call this method after setDataSource    This method finds the optional        graphic or album art associated  embedded or external url linked  the        related data source                  return null if no such graphic is found              public native byte   extractAlbumArt                    Call it when one is done with the object  This method releases the memory        allocated internally              public native void release         private native void native setup         private static native void native init         private native final void native finalize          Override     protected void finalize   throws Throwable           try               native finalize              finally               super finalize                         public static final int MODE GET METADATA ONLY   0x01      public static final int MODE CAPTURE FRAME ONLY   0x02                 Do not change these values without updating their counterparts in        include media mediametadataretriever h              public static final int METADATA KEY CD TRACK NUMBER   0      public static final int METADATA KEY ALBUM   1      public static final int METADATA KEY ARTIST   2      public static final int METADATA KEY AUTHOR   3      public static final int METADATA KEY COMPOSER   4      public static final int METADATA KEY DATE   5      public static final int METADATA KEY GENRE   6      public static final int METADATA KEY TITLE   7      public static final int METADATA KEY YEAR   8      public static final int METADATA KEY DURATION   9      public static final int METADATA KEY NUM TRACKS   10      public static final int METADATA KEY IS DRM CRIPPLED   11      public static final int METADATA KEY CODEC   12      public static final int METADATA KEY RATING   13      public static final int METADATA KEY COMMENT   14      public static final int METADATA KEY COPYRIGHT   15      public static final int METADATA KEY BIT RATE   16      public static final int METADATA KEY FRAME RATE   17      public static final int METADATA KEY VIDEO FORMAT   18      public static final int METADATA KEY VIDEO HEIGHT   19      public static final int METADATA KEY VIDEO WIDTH   20      public static final int METADATA KEY WRITER   21      public static final int METADATA KEY MIMETYPE   22      public static final int METADATA KEY DISCNUMBER   23      public static final int METADATA KEY ALBUMARTIST   24         Add more here

User · Answer

I really suggest you to use the Glide library  It s among the most efficient way to generate and display a video thumbnail for a local video file   Just add this line to your gradle file    compile  com github bumptech glide glide 3 7 0    And it will become as simple as    String filePath     storage emulated 0 Pictures example video mp4    Glide        with  context        load  Uri fromFile  new File  filePath            into  imageViewGifAsBitmap      You can find more informations here   https   futurestud io blog glide-displaying-gifs-and-videos  Cheers

User · Answer

I am answering this question late but hope it will help the other candidate facing same problem   I have used two methods to load thumbnail for videos list the first was      Bitmap bmThumbnail      bmThumbnail   ThumbnailUtils createVideoThumbnail FILE PATH                       videoList get position               MediaStore Video Thumbnails MINI KIND        if  bmThumbnail    null            Log d  VideoAdapter   video thumbnail found            holder imgVideo setImageBitmap bmThumbnail         else           Log d  VideoAdapter   video thumbnail not found            its look good but there was a problem with this solution because when i scroll video list it will freeze some time due to its large processing   so after this i found another solution which works perfectly by using Glide Library    Glide              with  mContext                load  Uri fromFile  new File  FILE PATH videoList get position                     into  holder imgVideo      I recommended the later solution for showing thumbnail with video list   thanks

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This is code for live Video thumbnail   public class LoadVideoThumbnail extends AsyncTask lt Object  Object  Bitmap gt             Override         protected Bitmap doInBackground Object    params   try                String mMediaPath    http   commonsware com misc test2 3gp               Log e  TEST Chirag    lt  lt  thumbnail doInBackground   mMediaPath               FileOutputStream out              File land new File Environment getExternalStorageDirectory   getAbsoluteFile                                  portland jpg                     Bitmap bitmap   ThumbnailUtils createVideoThumbnail mMediaPath  MediaStore Video Thumbnails MICRO KIND                           ByteArrayOutputStream stream   new ByteArrayOutputStream                            bitmap compress Bitmap CompressFormat JPEG  100  stream                           byte   byteArray   stream toByteArray                             out new  FileOutputStream land getPath                             out write byteArray                           out close                     return bitmap                 catch  FileNotFoundException e                       TODO Auto-generated catch block                 e printStackTrace                  catch  IOException e                       TODO Auto-generated catch block                 e printStackTrace                          return null                         Override         protected void onPostExecute Bitmap result                   TODO Auto-generated method stub             super onPostExecute result               if result    null                      ImageView findViewById R id imageView1   setImageBitmap result                             Log e  TEST Chirag        gt  End

User · Answer

Android 1 5 and 1 6 do not offer this thumbnails  but 2 0 does  as seen on the official release notes   Media  MediaScanner now generates thumbnails for all images when they are inserted into MediaStore  New Thumbnail API for retrieving image and video thumbnails on demand

User · Answer

if you don t or cannot go through cursor and if you have only paths or File objects  you can use since API level 8  2 2      public static Bitmap createVideoThumbnail  String filePath  int kind   Android documentation  The following code runs perfectly   Bitmap bMap   ThumbnailUtils createVideoThumbnail file getAbsolutePath    MediaStore Video Thumbnails MICRO KIND

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If you are using API 2 0 or newer this will work   int id      The Video s ID    ImageView iv    ImageView   convertView findViewById R id imagePreview   ContentResolver crThumb   getContentResolver    BitmapFactory Options options new BitmapFactory Options    options inSampleSize   1  Bitmap curThumb   MediaStore Video Thumbnails getThumbnail crThumb  id  MediaStore Video Thumbnails MICRO KIND  options   iv setImageBitmap curThumb

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Using the class  import android provider MediaStore Video Thumbnails   We can get two preview thumbnail sizes from the video  Thumbnails MICRO KIND for 96 x 96 Thumbnails MINI KIND for 512 x 384 px This is a code example  String filePath    quot  sdcard DCIM Camera my video mp4 quot     change the location of your file   ImageView imageview mini    ImageView findViewById R id thumbnail mini   ImageView imageview micro    ImageView findViewById R id thumbnail micro    Bitmap bmThumbnail     MICRO KIND  size  96 x 96 thumbnail bmThumbnail   ThumbnailUtils createVideoThumbnail filePath  Thumbnails MICRO KIND   imageview micro setImageBitmap bmThumbnail            MINI KIND  size  512 x 384 thumbnail  bmThumbnail   ThumbnailUtils createVideoThumbnail filePath  Thumbnails MINI KIND   imageview mini setImageBitmap bmThumbnail

User · Answer

Currently I Use following code     Bitmap bMap   ThumbnailUtils createVideoThumbnail file getAbsolutePath    MediaStore Video Thumbnails MICRO KIND     But I found better solution with Glide library with following code   It also cache your image and have better performance than previous approach    Glide with context                   load uri                   placeholder R drawable ic video place holder                   into imageView

[android] Android: Is it possible to display video thumbnails?

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