Hi3519、3536音频单声道改双声道

3519音频单声道改双声道部分：

修改源文件Hi3519AV100_SDK_V2.0.2.0/smp/a53_linux/mpp/sample/audio/sample_audio.c

单声道

AUDIO_DEV   AiDev = SAMPLE_AUDIO_EXTERN_AI_DEV;
AUDIO_DEV   AoDev = SAMPLE_AUDIO_EXTERN_AO_DEV;
stAioAttr.enSamplerate   = AUDIO_SAMPLE_RATE_48000;
stAioAttr.enBitwidth     = AUDIO_BIT_WIDTH_16;
stAioAttr.enWorkmode     = AIO_MODE_I2S_MASTER;
stAioAttr.enSoundmode    = AUDIO_SOUND_MODE_MONO;        //单声道
stAioAttr.u32EXFlag      = 0;
stAioAttr.u32FrmNum      = 30;
stAioAttr.u32PtNumPerFrm = AACLC_SAMPLES_PER_FRAME;
stAioAttr.u32ChnCnt      = 1;
stAioAttr.u32ClkSel      = 1;
stAioAttr.enI2sType      = AIO_I2STYPE_EXTERN;          //对接外接设备

双声道

AUDIO_DEV   AiDev = SAMPLE_AUDIO_INNER_AI_DEV;
AUDIO_DEV   AoDev = SAMPLE_AUDIO_INNER_AO_DEV;
stAioAttr.enSamplerate   = AUDIO_SAMPLE_RATE_48000;
stAioAttr.enBitwidth     = AUDIO_BIT_WIDTH_16;
stAioAttr.enWorkmode     = AIO_MODE_I2S_MASTER;    
stAioAttr.enSoundmode    = AUDIO_SOUND_MODE_STEREO;        //双声道
stAioAttr.u32EXFlag      = 0;
stAioAttr.u32FrmNum      = 30;
stAioAttr.u32PtNumPerFrm = AACLC_SAMPLES_PER_FRAME;
stAioAttr.u32ChnCnt      = 2;                  //从1改成2
stAioAttr.u32ClkSel      = 0;
stAioAttr.enI2sType      = AIO_I2STYPE_INNERCODEC;        //对接内置 CODEC

3536音频单声道改双声道部分

单声道参数设置：

    stAioAttr.enSamplerate   = AUDIO_SAMPLE_RATE_8000;            
    stAioAttr.enBitwidth     = AUDIO_BIT_WIDTH_16;
    stAioAttr.enWorkmode     = AIO_MODE_I2S_MASTER;
    stAioAttr.enSoundmode    = AUDIO_SOUND_MODE_MONO;
    stAioAttr.u32EXFlag      = 1;
    stAioAttr.u32FrmNum      = 30;
    stAioAttr.u32PtNumPerFrm = SAMPLE_AUDIO_PTNUMPERFRM;
    stAioAttr.u32ChnCnt      = 1;
    stAioAttr.u32ClkChnCnt   = 2;
    stAioAttr.u32ClkSel      = 0;

双声道参数设置：

  stAioAttr.enSamplerate   = AUDIO_SAMPLE_RATE_8000;
  stAioAttr.enBitwidth     = AUDIO_BIT_WIDTH_16;
  stAioAttr.enWorkmode     = AIO_MODE_I2S_MASTER;
  stAioAttr.enSoundmode    = AUDIO_SOUND_MODE_MONO;  //仍为单声道模式
  stAioAttr.u32EXFlag      = 1;
  stAioAttr.u32FrmNum      = 30;
  stAioAttr.u32PtNumPerFrm = SAMPLE_AUDIO_PTNUMPERFRM;
  stAioAttr.u32ChnCnt      = 2;                //通道数改为2
  stAioAttr.u32ClkChnCnt   = 2;
  stAioAttr.u32ClkSel      = 0;

单声道绑定输入输出

/* bind AI to AO channle */
    if (HI_TRUE == gs_bUserGetMode)
    {
        s32Ret = SAMPLE_COMM_AUDIO_CreatTrdAiAo(AiDev, AiChn, AoDev, AoChn);        //左声道
        if (s32Ret != HI_SUCCESS)
        {
            SAMPLE_DBG(s32Ret);
            return HI_FAILURE;
        }
    }
    else
    {   
        s32Ret = SAMPLE_COMM_AUDIO_AoBindAi(AiDev, AiChn, AoDev, AoChn);          //左声道
        if (s32Ret != HI_SUCCESS)
        {
            SAMPLE_DBG(s32Ret);
            return HI_FAILURE;
        }
    }
  printf("ai(%d,%d) bind to ao(%d,%d) ok\n", AiDev, AiChn, AoDev, AoChn);          //左声道

双声道绑定输入输出

 /* bind AI to AO channle */
    if (HI_TRUE == gs_bUserGetMode)
    {
        s32Ret = SAMPLE_COMM_AUDIO_CreatTrdAiAo(AiDev, AiChn, AoDev, AoChn);        //左声道
        if (s32Ret != HI_SUCCESS)
        {
            SAMPLE_DBG(s32Ret);
            return HI_FAILURE;
        }


    s32Ret = SAMPLE_COMM_AUDIO_CreatTrdAiAo(AiDev, AiChn, AoDev, AoChn+1);        //右声道
        if (s32Ret != HI_SUCCESS)
        {
            SAMPLE_DBG(s32Ret);
            return HI_FAILURE;
        }
    }
    else
    {   
        s32Ret = SAMPLE_COMM_AUDIO_AoBindAi(AiDev, AiChn, AoDev, AoChn);          //左声道
        if (s32Ret != HI_SUCCESS)
        {
            SAMPLE_DBG(s32Ret);
            return HI_FAILURE;
        }


    s32Ret = SAMPLE_COMM_AUDIO_AoBindAi(AiDev, AiChn, AoDev, AoChn+1);          //右声道
        if (s32Ret != HI_SUCCESS)
        {
            SAMPLE_DBG(s32Ret);
            return HI_FAILURE;
        }
    }
  printf("ai(%d,%d) bind to ao(%d,%d) ok\n", AiDev, AiChn, AoDev, AoChn);          //左声道
    printf("ai(%d,%d) bind to ao(%d,%d) ok\n", AiDev, AiChn, AoDev, AoChn+1);        //右声道