MediaPlayer API is unable to play custom content provider uri from external usb drive.

[Maqsood007]

You have done a very good job to write this code but now there is a problem that i have to fetch videos from external usb and trim them. but Android Native MediaPlayer API is not playing them. so kindly help me.

Regards

[ferPrieto]

If you are trying to access to an external path, you must make the next change in TimeLineView.java

private void getBitmap(final int viewWidth) {
        BackgroundExecutor.execute(new BackgroundExecutor.Task("", 0L, "") {
                                       @Override
                                       public void execute() {
                                           try {
                                               LongSparseArray<Bitmap> thumbnailList = new LongSparseArray<>();

                                               MediaMetadataRetriever mediaMetadataRetriever = new MediaMetadataRetriever();
                                              //  mediaMetadataRetriever.setDataSource(getContext(), videoUri); //NOT VALID FOR STREAMING VIDEOS
                                               mediaMetadataRetriever.setDataSource(videoUri.toString(), new HashMap<String, String>());

                                               // Retrieve media data
                                               long videoLengthInMs = Integer.parseInt(mediaMetadataRetriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION)) * 1000;

                                               // Set thumbnail properties (Thumbs are squares)
                                               final int thumbWidth = heightView;
                                               final int thumbHeight = heightView;

                                               int numThumbs = (int) Math.ceil(((float) viewWidth) / thumbWidth);

                                               final long interval = videoLengthInMs / numThumbs;

                                               for (int i = 0; i < numThumbs; ++i) {
                                                   Bitmap bitmap = mediaMetadataRetriever.getFrameAtTime(i * interval, MediaMetadataRetriever.OPTION_CLOSEST_SYNC);
                                                   // TODO: bitmap might be null here, hence throwing NullPointerException. You were right
                                                   try {
                                                       bitmap = Bitmap.createScaledBitmap(bitmap, thumbWidth, thumbHeight, false);
                                                   } catch (Exception e) {
                                                       e.printStackTrace();
                                                   }
                                                   thumbnailList.put(i, bitmap);
                                               }

                                               mediaMetadataRetriever.release();
                                               returnBitmaps(thumbnailList);
                                           } catch (final Throwable e) {
                                               Thread.getDefaultUncaughtExceptionHandler().uncaughtException(Thread.currentThread(), e);
                                           }
                                       }
                                   }
        );
    }