Java 如何在android中更改Exo player中的音轨
我有一些带有两个音轨的视频,我想在视频播放期间将音轨更改为另一种语言。 我什么都试过了,但还是没有成功 这是我的代码,我使用firebase存储来存储视频 我到处都找遍了,但找不到解决办法 我的代码正在运行,但仍然没有收到任何错误,但我似乎不可能更改音轨Java 如何在android中更改Exo player中的音轨,java,android,exoplayer2.x,Java,Android,Exoplayer2.x,我有一些带有两个音轨的视频,我想在视频播放期间将音轨更改为另一种语言。 我什么都试过了,但还是没有成功 这是我的代码,我使用firebase存储来存储视频 我到处都找遍了,但找不到解决办法 我的代码正在运行,但仍然没有收到任何错误,但我似乎不可能更改音轨 public class NewVideoActivity extends AppCompatActivity { SimpleExoPlayerView exoPlayerView; SimpleExoPlayer exoP
public class NewVideoActivity extends AppCompatActivity {
SimpleExoPlayerView exoPlayerView;
SimpleExoPlayer exoPlayer;
String videoURL;
private ImageView selectTracksButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_new_video);
getSupportActionBar().hide();
selectTracksButton = findViewById(R.id.audioTrack);
videoURL = getIntent().getStringExtra("Link");
exoPlayerView = (SimpleExoPlayerView) findViewById(R.id.exo_player_view);
try {
BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
TrackSelector trackSelector = new DefaultTrackSelector(new AdaptiveTrackSelection.Factory(bandwidthMeter));
exoPlayer = ExoPlayerFactory.newSimpleInstance(this, trackSelector);
Uri videoURI = Uri.parse(videoURL);
DefaultHttpDataSourceFactory dataSourceFactory = new DefaultHttpDataSourceFactory("exoplayer_video");
ExtractorsFactory extractorsFactory = new DefaultExtractorsFactory();
MediaSource mediaSource = new ExtractorMediaSource(videoURI, dataSourceFactory, extractorsFactory, null, null);
exoPlayerView.setPlayer(exoPlayer);
exoPlayer.prepare(mediaSource);
exoPlayer.setPlayWhenReady(true);
}catch (Exception e){
Log.e("MainAcvtivity"," exoplayer error "+ e.toString());
}
}
您可以使用hls视频(.m3u8扩展名)格式进行解决 简单代码
trackSelector = new DefaultTrackSelector();
trackSelector.setParameters(
trackSelector.getParameters().buildUpon().setMaxVideoSizeSd()
.setPreferredTextLanguage("en")
.setPreferredAudioLanguage("en").build());
您可以在此处为方法提供支持的语言作为参数
此外,如果支持多子文本,也可以用同样的方式将其作为参数提供给方法(setPreferredTextLanguage)
为您提供hls视频url示例
此hls视频支持两种音频语言;英语和西班牙语(英语、西班牙语)
我希望对您有所帮助您可以使用hls视频(.m3u8扩展名)格式来解决问题 简单代码
trackSelector = new DefaultTrackSelector();
trackSelector.setParameters(
trackSelector.getParameters().buildUpon().setMaxVideoSizeSd()
.setPreferredTextLanguage("en")
.setPreferredAudioLanguage("en").build());
您可以在此处为方法提供支持的语言作为参数
此外,如果支持多子文本,也可以用同样的方式将其作为参数提供给方法(setPreferredTextLanguage)
为您提供hls视频url示例
此hls视频支持两种音频语言;英语和西班牙语(英语、西班牙语)
我希望能对玩家2.11.7有所帮助。这段代码对我来说非常有效:
public void setAudioTrack(int track) {
System.out.println("setAudioTrack: " + track);
MappingTrackSelector.MappedTrackInfo mappedTrackInfo = Assertions.checkNotNull(trackSelector.getCurrentMappedTrackInfo());
DefaultTrackSelector.Parameters parameters = trackSelector.getParameters();
DefaultTrackSelector.ParametersBuilder builder = parameters.buildUpon();
for (int rendererIndex = 0; rendererIndex < mappedTrackInfo.getRendererCount(); rendererIndex++) {
int trackType = mappedTrackInfo.getRendererType(rendererIndex);
if (trackType == C.TRACK_TYPE_AUDIO) {
builder.clearSelectionOverrides(rendererIndex).setRendererDisabled(rendererIndex, false);
int groupIndex = track -1;
int [] tracks = {0};
DefaultTrackSelector.SelectionOverride override = new DefaultTrackSelector.SelectionOverride(groupIndex,tracks);
builder.setSelectionOverride(rendererIndex, mappedTrackInfo.getTrackGroups(rendererIndex), override);
}
}
trackSelector.setParameters(builder);
curentAudioTrack = track;
}
public void setAudioTrack(int-track){
System.out.println(“setAudioTrack:+track”);
MappingTrackSelector.MappedTrackInfo MappedTrackInfo=Assertions.checkNotNull(trackSelector.getCurrentMappedTrackInfo());
DefaultTrackSelector.Parameters=trackSelector.getParameters();
DefaultTrackSelector.ParametersBuilder=parameters.buildOn();
对于(int renderindex=0;renderindex
希望能帮助您。播放器2.11.7。这段代码对我来说非常有效:
public void setAudioTrack(int track) {
System.out.println("setAudioTrack: " + track);
MappingTrackSelector.MappedTrackInfo mappedTrackInfo = Assertions.checkNotNull(trackSelector.getCurrentMappedTrackInfo());
DefaultTrackSelector.Parameters parameters = trackSelector.getParameters();
DefaultTrackSelector.ParametersBuilder builder = parameters.buildUpon();
for (int rendererIndex = 0; rendererIndex < mappedTrackInfo.getRendererCount(); rendererIndex++) {
int trackType = mappedTrackInfo.getRendererType(rendererIndex);
if (trackType == C.TRACK_TYPE_AUDIO) {
builder.clearSelectionOverrides(rendererIndex).setRendererDisabled(rendererIndex, false);
int groupIndex = track -1;
int [] tracks = {0};
DefaultTrackSelector.SelectionOverride override = new DefaultTrackSelector.SelectionOverride(groupIndex,tracks);
builder.setSelectionOverride(rendererIndex, mappedTrackInfo.getTrackGroups(rendererIndex), override);
}
}
trackSelector.setParameters(builder);
curentAudioTrack = track;
}
public void setAudioTrack(int-track){
System.out.println(“setAudioTrack:+track”);
MappingTrackSelector.MappedTrackInfo MappedTrackInfo=Assertions.checkNotNull(trackSelector.getCurrentMappedTrackInfo());
DefaultTrackSelector.Parameters=trackSelector.getParameters();
DefaultTrackSelector.ParametersBuilder=parameters.buildOn();
对于(int renderindex=0;renderindex
希望能帮助你