创建具有LibVLC为Android一个录像机 [英] Create a videoplayer with the LibVLC for android
本文介绍了创建具有LibVLC为Android一个录像机的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我试图创造一个视频播放器与上次LibVLC一个Android应用程序。
I am trying to creat a video player for an android app with the last LibVLC.
问题是，我不知道这是如何的lib工程，我无法找到样本帮我（因为它是在这里说的 https://bitbucket.org/edwardcw/libvlc-android-sample ）
The problem is that I don't know how this lib works and I can't find sample to help me (as it is say here https://bitbucket.org/edwardcw/libvlc-android-sample)
所以，我尝试对我自己创建的视频播放器：
So I try on my own to create the video player :
public class VideoPlayerActivity extends AppCompatActivity implements IVideoPlayer, GestureDetector.OnDoubleTapListener, IDelayController {
private static LibVLC LibVLC() {
return VLCInstance.get();
}
private static MediaPlayer MediaPlayer() {
return VLCInstance.getMainMediaPlayer();
}
@Override
@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Toast.makeText(getApplicationContext(), "Ca start VideoPlayerActivity !!", Toast.LENGTH_SHORT).show();
if (!VLCInstance.testCompatibleCPU(this)) {
// exit(RESULT_CANCELED);
return;
}
extras = getIntent().getExtras();
mUri = extras.getParcelable(PLAY_EXTRA_ITEM_LOCATION);
Toast.makeText(getApplicationContext(), "Oui ça start le VideoPlayer", Toast.LENGTH_SHORT).show();
setContentView(R.layout.player_test);
}
@Override
public void onResume() {
super.onResume();
mSurfaceView = (SurfaceView) findViewById(R.id.player_surface_test);
setSurfaceLayout(100, 100, 100, 100, 100, 100);
mSurfaceHolder = mSurfaceView.getHolder();
mSurfaceFrame = (FrameLayout) findViewById(R.id.player_surface_frame_test);
mSurfaceHolder.addCallback(mSurfaceCallback);
}
private static class ConfigureSurfaceHolder {
private final Surface surface;
private boolean configured;
private ConfigureSurfaceHolder(Surface surface) {
this.surface = surface;
}
}
@Override
public void setSurfaceLayout(int width, int height, int visible_width, int visible_height, int sar_num, int sar_den) {
/*if (width * height == 0)
return;*/
// store video size
mVideoHeight = height;
mVideoWidth = width;
mVideoVisibleHeight = visible_height;
mVideoVisibleWidth = visible_width;
mSarNum = sar_num;
mSarDen = sar_den;
Toast.makeText(this, "mVideoHeight = " + mVideoHeight, Toast.LENGTH_SHORT).show();
}
@Override
public int configureSurface(Surface surface, final int width, final int height, final int hal) {
if (AndroidUtil.isICSOrLater() || surface == null)
return -1;
if (width * height == 0)
return 0;
Log.i(TAG, "configureSurface: " + width +"x"+height);
final ConfigureSurfaceHolder holder = new ConfigureSurfaceHolder(surface);
final Handler handler = new Handler(Looper.getMainLooper());
handler.post(new Runnable() {
@Override
public void run() {
if (mSurface == holder.surface && mSurfaceHolder != null) {
if (hal != 0)
mSurfaceHolder.setFormat(hal);
mSurfaceHolder.setFixedSize(width, height);
}
synchronized (holder) {
holder.configured = true;
holder.notifyAll();
}
}
});
try {
synchronized (holder) {
while (!holder.configured)
holder.wait();
}
} catch (InterruptedException e) {
return 0;
}
return 1;
}
@Override
public void eventHardwareAccelerationError() {
}
private void startVideo() {
// LibVLC lib = new LibVLC();
mMediaPlayer = VLCInstance.getMainMediaPlayer();
Media media = new Media(VLCInstance.get(), mUri.getPath());
media.parse();
Toast.makeText(this, "le media dure : "+media.getDuration(), Toast.LENGTH_SHORT).show();
// Toast.makeText(this, "le media dure : "+media., Toast.LENGTH_SHORT).show();
mMediaPlayer.setMedia(media);
//mMediaPlayer.setVideoTrackEnabled(true);
//media.release();
// mMediaPlayer.setEqualizer(VLCOptions.getEqualizer());
// mMediaPlayer.setVideoTitleDisplay(MediaPlayer.Position.Disable, 0);
int sw = getWindow().getDecorView().getWidth();
int sh = getWindow().getDecorView().getHeight();
VLCInstance.get().setWindowSize(sw, sh);
mMediaPlayer.play();
Toast.makeText(this, "le player a une valeur de : "+mMediaPlayer.isPlaying(), Toast.LENGTH_SHORT).show();
// media.parse();
// media.release();
// mMediaPlayer.setMedia(media);
// mMediaPlayer.play();
}
private final SurfaceHolder.Callback mSurfaceCallback = new SurfaceHolder.Callback() {
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
if(MediaPlayer() != null) {
width = 100;
height =100;
Toast.makeText(getApplicationContext(), "surface width = "+width, Toast.LENGTH_SHORT).show();
Toast.makeText(getApplicationContext(), "surface height = "+height, Toast.LENGTH_SHORT).show();
final Surface newSurface = holder.getSurface();
if (mSurface != newSurface) {
mSurface = newSurface;
Toast.makeText(getApplicationContext(), "surfaceChanged: " + mSurface, Toast.LENGTH_SHORT).show();
LibVLC().attachSurface(mSurface, VideoPlayerActivity.this);
mSurfaceReady = true;
startVideo();
//mHandler.sendEmptyMessage(1);
}
}
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
Log.i(TAG, "surfaceDestroyed");
if(MediaPlayer() != null) {
mSurface = null;
LibVLC().detachSurface();
mSurfaceReady = false;
}
}
};
private final Handler mHandler = new VideoPlayerHandler(this);
private static class VideoPlayerHandler extends WeakHandler<VideoPlayerActivity> {
public VideoPlayerHandler(VideoPlayerActivity owner) {
super(owner);
}
@Override
public void handleMessage(Message msg) {
VideoPlayerActivity activity = getOwner();
if(activity == null) // WeakReference could be GC'ed early
return;
switch (msg.what) {
case 1:
activity.startVideo();
break;
default:
break;
}
}
};
public static void start(Context context, Uri uri) {
start(context, uri, null, false, -1);
}
public static void start(Context context, Uri uri, boolean fromStart) {
start(context, uri, null, fromStart, -1);
}
public static void start(Context context, Uri uri, String title) {
start(context, uri, title, false, -1);
}
private static void start(Context context, Uri uri, String title, boolean fromStart, int openedPosition) {
Intent intent = new Intent(context, VideoPlayerActivity.class);
intent.setAction(PLAY_FROM_VIDEOGRID);
intent.putExtra(PLAY_EXTRA_ITEM_LOCATION, uri);
intent.putExtra(PLAY_EXTRA_ITEM_TITLE, title);
intent.putExtra(PLAY_EXTRA_FROM_START, fromStart);
intent.putExtra(PLAY_EXTRA_OPENED_POSITION, openedPosition);
/*if (openedPosition != -1)
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_MULTIPLE_TASK);*/
Toast.makeText(context, "uri = "+uri.toString(), Toast.LENGTH_SHORT).show();
context.startActivity(intent); // /!\ start the activity /!\ !!!
}
@Override
public void showAudioDelaySetting() {
}
@Override
public void showSubsDelaySetting() {
}
@Override
public void endDelaySetting() {
}
@Override
public boolean onSingleTapConfirmed(MotionEvent motionEvent) {
return false;
}
@Override
public boolean onDoubleTap(MotionEvent motionEvent) {
return false;
}
@Override
public boolean onDoubleTapEvent(MotionEvent motionEvent) {
return false;
}
}
要启动videoPlayerActivity我称之为启动（上下文的背景下，开放的URI），它会创造活动。
To start the videoPlayerActivity I call start(Context context, Uri uri) and it will creat the activity.
要resum此code：
To resum this code :
在 oncreat（）我称之为 onResum（）将调用一个 mSurfaceHolder .addCallback（mSurfaceCallback）; 这回拨电话 startVideo（）应该启动视频，但没有启动。
After the oncreat() I call onResum() that will call a mSurfaceHolder.addCallback(mSurfaceCallback); and this callback call startVideo() that should start the video, but nothing start..
因此，如果有人已经对如何创建与上次LibVLC简单的视频播放器或一个想法，我失败的样本，这将是有益的。
So if someone have a sample of how to create a simple video player with the last LibVLC or an idea where I fail, it would be helpful
推荐答案
请参阅我创建了下面的示例回购。它没有所有的钟声和口哨声，但它只是起到任何有效的视频网址。它使用mrmaffen好心提供的VLC SDK：
Please see the below sample repo I created. It doesn't have all the bells and whistles, but it simply plays any valid video url. It uses a VLC SDK kindly provided by mrmaffen:
https://github.com/gareoke/VLCPlayer
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