调试|Android平台的声音播放|AudioTrack|JNI|悲催的侧边键

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1.AudioTrack的用法

MODE_STREAM用法：

param.audiotrack_buffersize = AudioTrack.getMinBufferSize(freq, chnls, fmt);
AudioTrack audiotrack=new AudioTrack(AudioManager.STREAM_MUSIC,freq,chnls,fmt,param.audiotrack_buffersize,AudioTrack.MODE_STREAM);

getMinBufferSize(int sampleRateInHz, int channelConfig, int audioFormat) Returns the minimum buffer size required for the successful creation of an AudioTrack object to be created in the MODE_STREAM mode.

MODE_STATIC用法：

        int iMinBufSize = AudioTrack.getMinBufferSize(16000,  
                AudioFormat.CHANNEL_CONFIGURATION_MONO,
                            AudioFormat.ENCODING_PCM_16BIT);
     

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