Question

其实我为iPhone和Android设备制作了一个应用程序..并且该视频功能可用，因此iphone设备上传的视频，视频（mp4）无法在Android设备中播放，所以请任何机构帮助我

pDialog = new ProgressDialog(this);

    // Set progressbar message
    pDialog.setMessage("Buffering...");
    pDialog.setIndeterminate(false);
    pDialog.setCancelable(false);
    // Show progressbar
    pDialog.show();

    try {
        // Start the MediaController
        MediaController mediacontroller = new MediaController(
                PlayVideoViewFromURLActivity.this);
        mediacontroller.setAnchorView(mVideoView);

        // Get the URL from String VideoURL

        Uri videoUri = Uri.parse(vidUrl); // vidUrl is url of video which on server 

        mVideoView.setMediaController(mediacontroller);
        mVideoView.setVideoURI(videoUri);

    } catch (Exception e) {

        e.printStackTrace();
    }

    mVideoView.requestFocus();
    mVideoView.setOnPreparedListener(new OnPreparedListener() {
        // Close the progress bar and play the video
        public void onPrepared(MediaPlayer mp) {
            pDialog.dismiss();
            mVideoView.start();
        }
    });
    mVideoView.setOnCompletionListener(new OnCompletionListener() {

        public void onCompletion(MediaPlayer mp) {
            if (pDialog.isShowing()) {
                pDialog.dismiss();
            }
            finish();
        }
    });

完整的Logcat错误：

08-13 09:45:10.062: D/MediaPlayer(1929): Couldn't open file on client side, trying server side

08-13 09:45:11.770: E/MediaPlayer(1929): error (1, -2147483648)

08-13 09:45:11.790: E/MediaPlayer(1929): Error (1,-2147483648)

08-13 09:45:11.790: D/VideoView(1929): Error: 1,-2147483648

Answer 1

有一种使用MediaPlayer类流式传输视频的替代方法，就像我们在创建音乐播放器时一样。您可以使用曲面视图将媒体（包括视频）流式传输到MediaPlayer对象。例如，您可以使用以下布局：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#000000"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >

<SurfaceView
    android:id="@+id/surfView"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" />

<强> MainActivity.java

public class TestAct extends Activity implements SurfaceHolder.Callback, OnPreparedListener
{

private MediaPlayer mediaPlayer;
private SurfaceHolder vidHolder;
private SurfaceView vidSurface;
String vidAddress = "https://archive.org/download/ksnn_compilation_master_the_internet/ksnn_compilation_master_the_internet_512kb.mp4";

@Override
protected void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.test);

    vidSurface = (SurfaceView) findViewById(R.id.surfView);
    vidHolder = vidSurface.getHolder();
    vidHolder.addCallback(this);
}

@Override
public void surfaceCreated(SurfaceHolder arg0)
{
    try
    {
        mediaPlayer = new MediaPlayer();
        mediaPlayer.setDisplay(vidHolder);
        mediaPlayer.setDataSource(vidAddress);
        mediaPlayer.prepare();
        mediaPlayer.setOnPreparedListener(this);
        mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
    }
    catch (Exception e)
    {
        e.printStackTrace();
    }
}

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

@Override
public void surfaceDestroyed(SurfaceHolder holder)
{
}

@Override
public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3)
{
}

}

希望这会有所帮助：）

Answer 2

<强>问题：

关于视频与设备平台支持之间的编码 - 解码冲突的问题。

<强>解决方案：

我会坚持使用Vitamio库在android中播放视频。它使用起来非常简单，也很可靠。

示例：

您可以将其添加到xml文件中，例如VideoView，

<io.vov.vitamio.widget.VideoView android:id="@+id/surface_view" android:layout_width="wrap_content" android:layout_height="wrap_content" />

您可以轻松控制播放器，

public class VideoViewDemo extends Activity { /** * TODO: Set the path variable to a streaming video URL or a local media file * path. */ private String path = ""; private VideoView mVideoView; private EditText mEditText; @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); if (!LibsChecker.checkVitamioLibs(this)) return; setContentView(R.layout.videoview); mEditText = (EditText) findViewById(R.id.url); mVideoView = (VideoView) findViewById(R.id.surface_view); if (path == "") { // Tell the user to provide a media file URL/path. Toast.makeText(VideoViewDemo.this, "Please edit VideoViewDemo Activity, and set path" + " variable to your media file URL/path", Toast.LENGTH_LONG).show(); return; } else { /* * Alternatively,for streaming media you can use * mVideoView.setVideoURI(Uri.parse(URLstring)); */ mVideoView.setVideoPath(path); mVideoView.setMediaController(new MediaController(this)); mVideoView.requestFocus(); mVideoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() { @Override public void onPrepared(MediaPlayer mediaPlayer) { // optional need Vitamio 4.0 mediaPlayer.setPlaybackSpeed(1.0f); } }); } } public void startPlay(View view) { String url = mEditText.getText().toString(); path = url; if (!TextUtils.isEmpty(url)) { mVideoView.setVideoPath(url); } } public void openVideo(View View) { mVideoView.setVideoPath(path); } }

<强>参考：

VideoViewDemo

我希望它会对你有所帮助。

Answer 3

Can't Play video in android uploded from iphone

为什么mp4不能分4个步骤播放：

使用'ffmpeg'将vidView网址下载到PC
$ ffmpeg -i $ downloadFileName
检查报告的编解码器的详细信息
将这些报告的编解码器与android media supports

注意：＃2很可能会报告未在＃4

Answer 4

虽然视频是.mp4，但视频是在iOS上压缩的，原生Android播放器无法播放/解码。

我遇到OP在开发跨平台时遇到的这个问题。一个简单的替代方案是使用VLC for Android，它是开源的，基于FFMPEG并使用SurfaceViews。

为此，请在build.grade文件中包含以下内容：

compile "de.mrmaffen:vlc-android-sdk:1.0.3"

例如，您可以为视频制作新活动，并在onCreate中执行以下操作：

mSurfaceView = (SurfaceView) findViewById(R.id.player_surface);
mSurfaceHolder = mSurfaceView.getHolder();

mSurfaceFrame = (FrameLayout) findViewById(R.id.player_surface_frame);
mMediaUrl = getIntent().getExtras().getString("videoUrl");

try {
    mLibVLC = LibVLC.getInstance();
    mLibVLC.setAout(mLibVLC.AOUT_AUDIOTRACK);
    mLibVLC.setVout(mLibVLC.VOUT_ANDROID_SURFACE);
    mLibVLC.setHardwareAcceleration(LibVLC.HW_ACCELERATION_FULL);
    mLibVLC.eventVideoPlayerActivityCreated(Boolean.TRUE);

    mLibVLC.init(getApplicationContext());
} catch (LibVlcException e){
    Log.e(TAG, e.toString());
}

mSurfaceHolder.addCallback(mSurfaceCallback);
mSurface = mSurfaceHolder.getSurface();

mLibVLC.attachSurface(mSurface, VideoVLCActivity.this);
mLibVLC.playMRL(mMediaUrl);

可在此处找到大量信息以进行故障排除： VLC for Android VideoLAN Forums

有一个更详细的例子here，虽然它使用不同版本的libvlc.LibVLC并包含不同的方法，但它会让你很好地了解添加控件需要哪些步骤，设置正确的尺寸，纵横比，方向等。

在Android上从iPhone上传的Cant Play Video（.mp4）

4 个答案: