问题描述
我正在尝试设计一个小模块来接收rtp流量并将其显示在android电视的直播频道应用程序中。有问题的应用程序可以接收声音和所有内容,但是当涉及到在屏幕上绘制图像时,记录中的情况就发生了。
logcat:
08-23 02:03:06.339 31050 31195 E VLC : [e6831cb0/79db] libvlc window: request 1 not implemented
08-23 02:03:06.339 31050 31195 D VLC : [d573bc30/79db] libvlc vout display: VoutdisplayEvent 'resize' 1920x1080
08-23 02:03:06.339 31050 31195 D VLC : [e6831db0/79db] libvlc gl: looking for opengl es2 module matching "any": 1 candidates
08-23 02:03:06.341 31050 31195 D VLC : [e6831db0/79db] libvlc gl: no opengl es2 modules matched
08-23 02:03:06.341 31050 31195 E VLC : [e6831cb0/79db] libvlc window: request 1 not implemented
08-23 02:03:06.341 31050 31195 D VLC : [d573bc30/79db] libvlc vout display: VoutdisplayEvent 'resize' 1920x1080
08-23 02:03:06.341 31050 31195 D VLC : [d573bc30/79db] libvlc vout display: no vout display modules matched
08-23 02:03:06.341 31050 31098 E VLC : [ed07a330/797a] libvlc video output: video output creation Failed
08-23 02:03:06.343 31050 31098 D VLC : [d5751cb0/797a] libvlc spu text: removing module "freetype"
08-23 02:03:06.345 31050 31098 D VLC : [d5753830/797a] libvlc scale: removing module "yuvp"
08-23 02:03:06.345 31050 31098 D VLC : [d5752bb0/797a] libvlc scale: removing module "swscale"
08-23 02:03:06.346 31050 31098 E VLC : [e684a730/797a] libvlc decoder: Failed to create video output
AppPlayer.java:
/*
* copyright 2016 The Android Open Source Project.
*
* Licensed under the Apache License,Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,software
* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.neirth.player;
import android.content.Context;
import android.content.res.Resources;
import android.media.PlaybackParams;
import android.net.Uri;
import android.util.displayMetrics;
import android.view.Surface;
import android.view.SurfaceView;
import com.google.android.media.tv.companionlibrary.TvPlayer;
import org.videolan.libvlc.IVLCVout;
import org.videolan.libvlc.LibVLC;
import org.videolan.libvlc.Media;
import org.videolan.libvlc.MediaPlayer;
import java.util.ArrayList;
/**
* A wrapper around ExoPlayer which implements TvPlayer. This is the class that actually renders
* the video,subtitles and all these sorts of things.
*/
public class AppPlayer implements TvPlayer {
private LibVLC libVlc;
private MediaPlayer player;
/**
* AppPlayer constructor
* @param context Context
*/
public AppPlayer(Context context) {
ArrayList<String> options = new ArrayList<>();
options.add("-vv");
options.add("--aout=opensles");
libVlc = new LibVLC(context,options);
player = new MediaPlayer(libVlc);
}
/**
* Load media
* @param mediaUri Media URI
*/
public void loadMedia(String mediaUri) {
loadMedia(Uri.parse(mediaUri));
}
/**
* Load media
* @param mediaUri Media URI
*/
public void loadMedia(Uri mediaUri) {
final Media media = new Media(libVlc,mediaUri);
media.setHWDecoderEnabled(true,false);
media.addOption(":clock-jitter=0");
media.addOption(":clock-synchro=0");
media.addOption(":network-caching=1000"); // In milliseconds
media.addOption(":sout-keep");
media.addOption(":audio-time-stretch");
player.setMedia(media);
media.release();
}
/**
* Release player
*/
public void release() {
player.release();
libVlc.release();
}
/**
* Set surface
* @param surface Video surface
*/
@Override
public void setSurface(Surface surface) {
final IVLCVout vlcVout = player.getVLCVout();
if (surface != null) {
displayMetrics dm = Resources.getSystem().getdisplayMetrics();
vlcVout.setVideoSurface(surface,null);
vlcVout.setwindowSize(dm.widthPixels,dm.heightPixels);
vlcVout.attachViews();
} else {
vlcVout.detachViews();
}
}
/**
* Get current position
* @return Current position in milliseconds
*/
@Override
public long getCurrentPosition() {
return (long) (player.getPosition() * 1000);
}
/**
* Get duration
* @return Duration in milliseconds
*/
@Override
public long getDuration() {
return player.getLength();
}
/**
* Start or resume player
*/
@Override
public void play() {
player.play();
}
/**
* Pause player
*/
@Override
public void pause() {
player.pause();
}
/**
* Stop player
*/
public void stop() {
player.stop();
}
/**
* Seek to
* @param position Position in milliseconds
*/
@Override
public void seekTo(long position) {
float pos = (float) position;
pos /= 1000;
player.setPosition(pos);
}
/**
* Set volume
* @param volume Volume between 0 and 1
*/
@Override
public void setVolume(float volume) {
player.setVolume((int) (volume * 100));
}
@Override
public void setPlaybackParams(PlaybackParams params) {}
@Override
public void registerCallback(Callback callback) {}
@Override
public void unregisterCallback(Callback callback) {}
}
我希望能回答这个问题。
解决方法
问题来自您的setSurface()
方法。
这是一个自包含的工作样本
import android.os.Bundle;
import androidx.appcompat.app.AppCompatActivity;
import org.videolan.libvlc.LibVLC;
import org.videolan.libvlc.Media;
import org.videolan.libvlc.MediaPlayer;
import org.videolan.libvlc.util.VLCVideoLayout;
import java.io.IOException;
import java.util.ArrayList;
public class JavaActivity extends AppCompatActivity {
private static final boolean USE_TEXTURE_VIEW = false;
private static final boolean ENABLE_SUBTITLES = true;
private static final String ASSET_FILENAME = "bbb.m4v";
private VLCVideoLayout mVideoLayout = null;
private LibVLC mLibVLC = null;
private MediaPlayer mMediaPlayer = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final ArrayList<String> args = new ArrayList<>();
args.add("-vvv");
mLibVLC = new LibVLC(this,args);
mMediaPlayer = new MediaPlayer(mLibVLC);
mVideoLayout = findViewById(R.id.video_layout);
}
@Override
protected void onDestroy() {
super.onDestroy();
mMediaPlayer.release();
mLibVLC.release();
}
@Override
protected void onStart() {
super.onStart();
mMediaPlayer.attachViews(mVideoLayout,null,ENABLE_SUBTITLES,USE_TEXTURE_VIEW);
try {
final Media media = new Media(mLibVLC,getAssets().openFd(ASSET_FILENAME));
mMediaPlayer.setMedia(media);
media.release();
} catch (IOException e) {
throw new RuntimeException("Invalid asset folder");
}
mMediaPlayer.play();
}
@Override
protected void onStop() {
super.onStop();
mMediaPlayer.stop();
mMediaPlayer.detachViews();
}
}