How to get frame by frame from MP4?

Actually I am working with OpenGL and I would like to put all my textures in MP4 in order to compress them.

Then I need to get it from MP4 on my Android

I need somehow decode MP4 and get frame by frame by request.

I found this MediaCodec

https://developer.android.com/reference/android/media/MediaCodec

and this MediaMetadataRetriever

https://developer.android.com/reference/android/media/MediaMetadataRetriever

But I did not see approach how to request frame by frame...

If there is someone who worked with MP4, please give me a way where to go.

P.S. I am working with native way (JNI), so does not matter how to do it.. Java or native, but I need to understand the concept.

EDIT1

I make some kind of movie (just one 3d model), so I am changing my geometry as well as textures every 32 milliseconds. So, it is seems to me reasonable to use mp4 for tex because of each new frame (32 milliseconds) very similar to privious one...

Now I use 400 frames for one model. For geometry I use .mtr and for tex I use .pkm (because it optimized for android) , so I have around 350 .mtr files(because some files include subindex) and 400 .pkm files ...

This is the reason why I am going to use mp4 for tex. Because one mp4 much more smaller than 400 .pkm

EDIT2

Plase take a look at Edit1

Actually all that I need to know is there API of Android that could read MP4 by frames? Maybe some kind of getNextFrame() method?

Something like this

MP4Player player = new MP4Player(PATH_TO_MY_MP4_FILE);

void readMP4(){
   Bitmap b;

   while(player.hasNext()){
      b = player.getNextFrame();

      ///.... my code here ...///
   }
}

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