open_tray_audio.c

凌阳8202T的红外接收代码及LED屏的驱动代码

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};

int qry_mp3_len(void)
{
    return sizeof(open_audio_data);
}    

void mem_play_mp3(int mute_flag,int len_play)
{ 
    BYTE    *ab = abv_start;
    UINT32  al  = abv_size;
    UINT32  apb = 0;;
    int  ip = 0;    
    int free;
    int bytes_for_play = 0;
    BYTE *mp3_data;        
    
    mp3_data = (BYTE*)open_audio_data;                                       
    coding_mode_now = 0;
    audio_only = 1;
    AUDIF_Init_MP3();
    AUDIF_Set_SampleRate(FS_22K);
    if(mute_flag)
    {
        if (len_play > 10*1024)  //play 10k data in mute, for lpcm perormance
            bytes_for_play = 10*1024;
        else
            bytes_for_play = len_play;                
        AUDIF_Set_Volume(0);
    }
    else   
         bytes_for_play = len_play;    
          
    while(1)
    {                                                                  
    WAIT_FREE1:                              
        if (ip > bytes_for_play)
            break;                                                       
        free = dsp3_get_rest_buf_size();     
        //polling();      
         if ((free < 1024)&&(mute_flag==0))
        {            
            goto WAIT_FREE1;    //Wait 1K DSP Word
        }                                                
        
        if ((ip % 1024)==0)
            printf("ip=%d\n",ip);
                    
        memcpy((ab+apb),(mp3_data+ip),512);
        apb+=512;
        ip+=512;
        if (apb>=al) 
            {apb=0;}                                                  
        AudioSetBytePtr(apb);
        AudioSetDumpPointer(apb/3);                        
    }    
    if(!mute_flag)
    { 
        delay_srv_10ms(160);
    }    
    AUDIF_Set_Stop();          
}

extern int qry_mp3_len();