Android无法使用VideoView播放mp4视频？

Question

I am trying to stream mp4 video with fullscreen activity only contain of videoview. But even though it easily play on my galaxt s3, it does not play most of the devices. I suspect its about encoding of the video (by the way you have to be codec guru to know which video play which not).

Here is the code I am using.

    //make screen full with video
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFormat(PixelFormat.TRANSLUCENT);
    setContentView(R.layout.full_screen_video);

    //get extra video source string
    Intent intent = getIntent();
    if(intent != null){
        videoSrc = intent.getStringExtra(TefalTvApp.RECIPE_VIDEO_SOURCE);
        if (DEBUG) {
            Log.d(TAG, "Recipe title : " + videoSrc);   
        }
    }

    video = (VideoView) findViewById(R.id.recipeVideo);
    controller = new MediaController(FullScreenVideoActivity.this);
    controller.setMediaPlayer(video);
    video.setMediaController(controller);
    video.setVideoPath(videoSrc);
    video.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View arg0) {
            // TODO Auto-generated method stub
            if (DEBUG) {
                Log.d(TAG, "Hello wworld");
            }
        }
    });

    video.setOnPreparedListener(new OnPreparedListener() {

        @Override
        public void onPrepared(MediaPlayer mp) {
            video.requestFocus();
            video.start();  
        }
    });

Here is the debug result. You have the video url in the debug.

08-23 23:25:53.349: D/RecipeDetailActivity(18179): Video src : http://www.tefaltv.com/Upload/Video/acticook_kiymalifasulye.mp4
08-23 23:25:53.379: I/ApplicationPackageManager(18179): cscCountry is not German : TUR
08-23 23:25:53.389: D/FullScreenVideoActivity(18179): Recipe title : http://www.tefaltv.com/Upload/Video/acticook_kiymalifasulye.mp4
08-23 23:25:53.399: D/VideoView(18179): onMeasure()
08-23 23:25:53.399: I/VideoView(18179):     Setting size: 480x295
08-23 23:25:53.439: I/MediaPlayer(18179): uri is:http://www.tefaltv.com/Upload/Video/acticook_kiymalifasulye.mp4
08-23 23:25:53.439: I/MediaPlayer(18179): path is null
08-23 23:25:53.439: D/MediaPlayer(18179): Couldn't open file on client side, trying server side
08-23 23:25:53.519: D/VideoView(18179): onMeasure()
08-23 23:25:53.519: I/VideoView(18179):     Setting size: 480x295
08-23 23:25:57.689: I/VideoView(18179): start()
08-23 23:25:57.739: D/VideoView(18179): onMeasure()
08-23 23:25:57.739: I/VideoView(18179):     Setting size: 480x270
08-23 23:25:57.759: E/MediaPlayer(18179): error (1, -2147483648)
08-23 23:25:57.769: I/VideoView(18179): start()
08-23 23:25:57.779: E/MediaPlayer(18179): start called in state 0
08-23 23:25:57.779: E/MediaPlayer(18179): error (-38, 0)
08-23 23:25:57.799: E/MediaPlayer(18179): Error (1,-2147483648)
08-23 23:25:57.799: D/VideoView(18179): Error: 1,-2147483648
08-23 23:25:57.799: E/MediaPlayer(18179): Error (-38,0)
08-23 23:25:57.799: D/VideoView(18179): Error: -38,0

UPDATE : Video encoding details : Format : H.264, 624 x 351 AAC, 44100 Hz, Stereo (LR) FPS : 25 Data Rate: 2.23mbit/s Current size : 624x351 px actual

Answer 1

This is mostly because of the encoding . I see that your video file resolution is 624x351 which is not standard, so that might be one reason . Also check the maximum bit rate and fps as all the mobile devices have some cap over it , like for most of android mobile phones its 30fps. You should refer this document to make your file compatible with all the android phones. Android Media Formats

Also, if you can share the encoding command (if you are executing one), it will be easy to trace the issue.

Answer 2

I suggest you for the following Code wherein i am running my application successfully

The Code is as Follows:

XML file:

     <?xml version="1.0" encoding="utf-8"?>
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#f0f0f0" >

        <Button
            android:id="@+id/btnVideoGallery"
            android:layout_width="75dp"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_marginTop="15dp"
            android:text="@string/gallery" />

        <Button
            android:id="@+id/btnCancel"
            android:layout_width="120dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/btnVideoGallery"
            android:layout_centerHorizontal="true"
            android:layout_marginTop="22dp"
            android:text="@string/cancel" />

        <TextView
            android:id="@+id/lblDisplayImage"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@+id/btnCancel"
            android:layout_centerHorizontal="true"
            android:layout_marginTop="10dp"
            android:text="@string/below_this_text_video_will_be_displayed"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:textColor="#000000"
            android:textSize="13dp" />

        <VideoView
            android:id="@+id/vvDisplayVideo"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/lblDisplayImage"
            android:layout_marginTop="15dp" />

    </RelativeLayout>

Java File:

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.MediaController;
import android.widget.VideoView;

public class VideoActivity extends Activity {

    private Button btnVideoGallery,btnCancel;
    private VideoView vvDisplayVideo;
    /** The Constant PICK_VIDEO. */
    private static final int PICK_VIDEO=1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_video_options);

        btnVideoGallery=(Button)findViewById(R.id.btnVideoGallery);
        vvDisplayVideo=(VideoView)findViewById(R.id.vvDisplayVideo);
        btnCancel=(Button)findViewById(R.id.btnCancel);
        vvDisplayVideo.setVisibility(View.GONE);

        btnVideoGallery.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {

                Intent video=new Intent();
                video.setAction(Intent.ACTION_PICK);
                video.setType("video/*");
                startActivityForResult(video, PICK_VIDEO);

            }
        });

        btnCancel.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {

                Intent goStartUp=new Intent(VideoActivity.this, StartUpActivity.class);
                goStartUp.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                startActivity(goStartUp);
                finish();
            }
        });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // TODO Auto-generated method stub
        if (resultCode==Activity.RESULT_OK && requestCode == PICK_VIDEO) {

            vvDisplayVideo.setVisibility(View.VISIBLE);
            vvDisplayVideo.setVideoURI(data.getData());
            vvDisplayVideo.setFocusable(true);
            MediaController mc=new MediaController(this);
            vvDisplayVideo.setMediaController(mc);
            Log.i("True", "Executed");
        }
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        // TODO Auto-generated method stub

        Intent goStartUp=new Intent(VideoActivity.this, StartUpActivity.class);
        goStartUp.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        startActivity(goStartUp);
        finish();
        return super.onKeyDown(keyCode, event);
    }
}

Also you can modify the Manifest File as per your use:

<manifest ...
<uses-sdk...  />
<uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.RECORD_VIDEO" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

    <uses-feature
        android:name="android.hardware.camera"
        android:required="false" />

<application .....
</application>

</manifest>

Answer 3

您正在流式传输的视频大小与视频观看大小不同