在ExoPlayer上静音 [英] Mute audio on ExoPlayer

问题描述

我正在使用名为ExoPlayer的Google新MediaPlayer，却找不到静音的方法

I'm using Google new MediaPlayer named ExoPlayer and cannot find a way to mute the sound

是否有一种简单的方法可以使Google ExoPlayer上的音轨静音?或更改音量?

Is there an easy way to mute audio track on Google ExoPlayer ? Or changing volume ?

推荐答案

Exoplayer 2.x.x

获取当前音量: int currentvolume = player.getVolume();
静音: player.setVolume(0f);
取消静音: player.setVolume(currentVolume);

Exoplayer 2.x.x

Get the current volume: int currentvolume = player.getVolume();
Mute: player.setVolume(0f);
Unmute: player.setVolume(currentVolume);

我找到了两种方法来编辑

I found two ways to achieve it by editing DemoPlayer from ExoPlayer.

基本上，您需要获取作为ExoPlayerComponent的audioTrackRenderer并向其发送消息. 所以:

Basicly, you need to get the audioTrackRenderer which is a ExoPlayerComponent and send message to it. So :

1. 添加audioRenderer成员并将其设置在onRenderers中:

1. Add audioRenderer member and set it in onRenderers:

// Complete preparation.  
this.videoRenderer = renderers[TYPE_VIDEO];  
this.audioRenderer = renderers[TYPE_AUDIO];  

添加公共方法:

Add public method :

public void setMute(boolean toMute){
    if(toMute){
        player.sendMessage(audioRenderer, MediaCodecAudioTrackRenderer.MSG_SET_VOLUME, 0f);
    } else {
        player.sendMessage(audioRenderer, MediaCodecAudioTrackRenderer.MSG_SET_VOLUME, 1f);
    }
}

用法:
静音:player.setMute(true);
取消静音:player.setMute(false);

Usage :
mute : player.setMute(true);
unmute : player.setMute(false);

这不是一个好的解决方案，因为播放器在取消静音时需要重新缓冲.
包括将音频轨道更改为空轨道:

This is not a good solution has the player will need to rebuffer when unmuting.
Consist of changing the audio track to an empty one:

// mute
player.selectTrack(FullPlayer.TYPE_AUDIO, ExoPlayer.TRACK_DISABLED);

// Unmute
player.selectTrack(FullPlayer.TYPE_AUDIO, ExoPlayer.TRACK_DEFAULT);

这篇关于在ExoPlayer上静音的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！