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FFmpegAndroid/app/src/main/java/com/frank/ffmpeg/MediaPlayer.java

45 lines
1.3 KiB

package com.frank.ffmpeg;
import android.media.AudioFormat;
import android.media.AudioManager;
import android.media.AudioTrack;
/**
* 音视频播放器
* Created by frank on 2018/2/12.
*/
public class MediaPlayer {
static {
System.loadLibrary("media-handle");
}
public native int setup(String filePath, Object surface);
public native int play();
public native void release();
/**
* 创建一个AudioTrack对象
* @param sampleRate 采样率
* @param channels 声道布局
* @return AudioTrack
*/
public AudioTrack createAudioTrack(int sampleRate, int channels){
int audioFormat = AudioFormat.ENCODING_PCM_16BIT;
int channelConfig;
if(channels == 1){
channelConfig = android.media.AudioFormat.CHANNEL_OUT_MONO;
}else if(channels == 2){
channelConfig = android.media.AudioFormat.CHANNEL_OUT_STEREO;
}else{
channelConfig = android.media.AudioFormat.CHANNEL_OUT_STEREO;
}
int bufferSizeInBytes = AudioTrack.getMinBufferSize(sampleRate, channelConfig, audioFormat);
return new AudioTrack(AudioManager.STREAM_MUSIC, sampleRate, channelConfig, audioFormat,
bufferSizeInBytes, AudioTrack.MODE_STREAM);
}
}