MediaExtractor, MediaMetadataRetriever with Raw/Asset File

Question

I try to read a video file inside either raw/assets folder, I have tried the following approaches but none of them works. I am testing on API 16. Each approach, I try with and without mp4 extension. I really appreciate that somebody can help me with it

All approaches will not crash, MediaMetadataRetriever can set data source, but cannot get width, height and screenshot. VideoExtractor always return

06-04 16:44:10.519: E/FileSource(8695): Failed to open file FILE_PATH. (No such file or directory) 06-04 16:44:10.519: E/DecodeActivity(8695): Can't find video info! 

Approach 1:android.resource

String filePath = "android.resource://" + this.activity.getPackageName() + "/raw/green_backhand_slice"; videoExtractor.setDataSource(activity.getApplicationContext(), Uri.parse(filePath), null); metaRetriever.setDataSource(act.getApplication(), Uri.parse(filePath)); 

Approach 2: android_asset

this.filePath = "file:///android_asset/green_backhand_slice"; videoExtractor.setDataSource(activity.getApplicationContext(), Uri.parse(this.filePath), null); metaRetriever.setDataSource(act.getApplication(), Uri.parse(filePath)); 

Approach 3: asset file descriptor

AssetFileDescriptor assetFD = null; try {     assetFD = getAssets().openFd("green_backhand_slice.mp4"); } catch (IOException e) {     e.printStackTrace(); }  metaRetriever.setDataSource(assetFD.getFileDescriptor()); 

Answer 1

Here are some ways to do it:

1.raw:

final AssetFileDescriptor afd=getResources().openRawResourceFd(R.raw.t); mediaMetadataRetriever.setDataSource(afd.getFileDescriptor(),afd.getStartOffset(),afd.getLength()); 

2.raw as uri:

final String uriPath="android.resource://"+getPackageName()+"/raw/t"; final Uri uri=Uri.parse(uriPath); mediaMetadataRetriever.setDataSource(getApplication(),uri); 

3.assets:

final AssetFileDescriptor afd=getAssets().openFd("t.mp4"); mediaMetadataRetriever.setDataSource(afd.getFileDescriptor(),afd.getStartOffset(),afd.getLength());