Android video issues when loading a Samba video file from router

Hey all I have the following Java code I did in Android Studio that I am needing some help with.

I am needing to be able to load a shared file from my router (It's running OpenWRT/Luci) with the Samba file sharing turned on. I have tested the code out below to make sure it's finding the file and I can confirm It can find it when it checks for SMB file found? and it comes back true.

When loading local file:


However, the issue is that when I switch over to getting the SMB video it does not load like the other tests that I did - loading it up from local storage.

When loading from SMB file:


My full code that I am currently using:

       package com.example.smbvidoverhttp;        import android.content.Context;    import android.net.Uri;    import android.os.Bundle;    import android.util.Log;    import android.view.View;    import android.widget.Button;    import android.widget.MediaController;    import android.widget.VideoView;        import androidx.annotation.Nullable;    import androidx.appcompat.app.AppCompatActivity;        import java.io.ByteArrayInputStream;    import java.io.File;    import java.io.FileInputStream;    import java.io.FileNotFoundException;    import java.io.IOException;    import java.io.InputStream;    import java.io.RandomAccessFile;    import java.lang.reflect.InvocationTargetException;    import java.lang.reflect.Method;    import java.net.MalformedURLException;    import java.util.HashMap;    import java.util.Map;        import fi.iki.elonen.NanoHTTPD;    import jcifs.smb.NtlmPasswordAuthentication;    import jcifs.smb.SmbAuthException;    import jcifs.smb.SmbFile;    import jcifs.smb.SmbFileInputStream;    import jcifs.smb.SmbFileOutputStream;        public class MainActivity2 extends AppCompatActivity {        Button btn;        Button btn2;        VideoView videoView;            @Override        protected void onCreate(Bundle savedInstanceState) {            super.onCreate(savedInstanceState);            setContentView(R.layout.activity_main);                btn = findViewById(R.id.button);            btn2 = findViewById(R.id.button2);            videoView = findViewById(R.id.videoView);            MediaController mediaController = new MediaController(this);            videoView.setMediaController(mediaController);                    btn.setOnClickListener(v -> {                try {                    VideoServer blah = new VideoServer();                    blah.start();                } catch (IOException e) {                    throw new RuntimeException(e);                }            });                btn2.setOnClickListener(v -> {                try {                    videoView.setVideoURI(Uri.parse("http://127.0.0.1:7777/bun33s.mp4"));                    //videoView.requestFocus();                    videoView.start();                } catch (Exception e) {                    Log.d("", "ERROR: " + e.getMessage());                }            });        }            @Nullable        @SuppressWarnings("JavaReflectionMemberAccess")        public String findSDCardPath() {            try {                final Class<?> surfaceControlClass = Class.forName("android.os.storage.StorageManager");                Object StorageServ = getApplicationContext().getSystemService(Context.STORAGE_SERVICE);                    Method method1 = surfaceControlClass.getMethod("getVolumePaths");                method1.setAccessible(true);                String[] volumes = (String[]) method1.invoke(StorageServ);                    if (volumes.length > 1) {                    Log.d("smbTest", "External: " + volumes[1]);                    return volumes[1];                } else {                    Log.d("smbTest", "Internal: " + volumes[0]);                    return volumes[0];                }            } catch (ClassNotFoundException | InvocationTargetException | NoSuchMethodException |                     IllegalAccessException ex) {                Log.d("smbTest", "ERROR: " + ex.getMessage());            }                return null;        }            public class VideoServer extends NanoHTTPD {            String filePath = "";                public VideoServer() {                super(7777);            }                @Override            public Response serve(IHTTPSession session) {                final String theVidName = ((HTTPSession) session).getUri(); // /bun33s.mp4                  String range = null;                Map<String, String> headers = session.getHeaders();                    for (String key : headers.keySet()) {                    if ("range".equals(key)) {                        range = headers.get(key);                        break;                    }                }                if (range != null) {                    try {                        return getPartialResponse("video/mp4", range);                    } catch (IOException e) {                        throw new RuntimeException(e);                    }                } else {                    return responseVideoStream(session, filePath);                }            }                public Response responseVideoStream(IHTTPSession session, String videopath) {                try {                    NtlmPasswordAuthentication auth = new NtlmPasswordAuthentication(null, "user here", "password here");                    SmbFile source = new SmbFile("smb://192.168.8.1/GL-Samba/bun33s.mp4", auth);                    SmbFileInputStream inputStream = new SmbFileInputStream(source);                    boolean b;                        try {                        b = source.exists();                        Log.d("", "SMB file found? " + b);                    }                    catch(SmbAuthException e) {                        Log.d("", "Exception caught while calling SmbFile#exists(): " + e.getMessage());                    }                    //InputStream in = source.getInputStream();                        //FileInputStream fis = new FileInputStream(videopath);                    return newChunkedResponse(Response.Status.OK, "video/mp4", inputStream);                } catch (MalformedURLException e) {                    throw new RuntimeException(e);                } catch (IOException e) {                    throw new RuntimeException(e);                }            }                private Response getPartialResponse(String mimeType, String rangeHeader) throws IOException {                File file = new File(filePath);                String rangeValue = rangeHeader.trim().substring("bytes=".length());                long fileLength = file.length();                long start, end;                    if (rangeValue.startsWith("-")) {                    end = fileLength - 1;                    start = fileLength - 1 - Long.parseLong(rangeValue.substring("-".length()));                } else {                    String[] range = rangeValue.split("-");                    start = Long.parseLong(range[0]);                    end = range.length > 1 ? Long.parseLong(range[1]) : fileLength - 1;                }                    if (end > fileLength - 1) {                    end = fileLength - 1;                }                    if (start <= end) {                    long contentLength = end - start + 1;                    FileInputStream fileInputStream = new FileInputStream(file);                        fileInputStream.skip(start);                    Response response = newFixedLengthResponse(Response.Status.PARTIAL_CONTENT, mimeType, fileInputStream, contentLength);                    response.addHeader("Content-Length", contentLength + "");                    response.addHeader("Content-Range", "bytes " + start + "-" + end + "/" + fileLength);                    response.addHeader("Content-Type", mimeType);                        return response;                } else {                    return newChunkedResponse(Response.Status.INTERNAL_ERROR, "text/html", null);                }            }        }    }

For testing it out I'm just using the ADB with the correct device number to send a http request to the built in browser:

adb -s 25131HFDD6222C shell am start -a android.intent.action.VIEW -d http://127.0.0.1:7777/bun33s.mp4

And like I said, it plays when I test it out loading a local file on the device but wont play when using the SMB file.

What am I missing?

I am also looking at other ways to connect my Android tablet to my Win10 PC.  I have downloaded many  bits of code and libraries in a search for working code.  No luck yet.
Please be sure to post your solution when you find it.