ircmd_audio.c

mp3 player program please read carefully.

/**************************************************************************
 *                                                                        *
 *         Copyright (c) 2002 by Sunplus Technology Co., Ltd.             *
 *                                                                        *
 *  This software is copyrighted by and is the property of Sunplus        *
 *  Technology Co., Ltd. All rights are reserved by Sunplus Technology    *
 *  Co., Ltd. This software may only be used in accordance with the       *
 *  corresponding license agreement. Any unauthorized use, duplication,   *
 *  distribution, or disclosure of this software is expressly forbidden.  *
 *                                                                        *
 *  This Copyright notice MUST not be removed or modified without prior   *
 *  written consent of Sunplus Technology Co., Ltd.                       *
 *                                                                        *
 *  Sunplus Technology Co., Ltd. reserves the right to modify this        *
 *  software without notice.                                              *
 *                                                                        *
 *  Sunplus Technology Co., Ltd.                                          *
 *  19, Innovation First Road, Science-Based Industrial Park,             *
 *  Hsin-Chu, Taiwan, R.O.C.                                              *
 **************************************************************************/
/*--------------------------------------------------------------------------
|  File Name   :  ircmd_audio.c
|
|  Description :  realize audio language function in IR audio language key.
|
|  Version    :  0.1  
| 
| 
|  Rev	Date	        Author(s)      Status & Comments
|---------------------------------------------------------------------------------
|  0.1	2004/1/14        Terry         Creating
|--------------------------------------------------------------------------------*/

#define is_dvd()    (cd_type_loaded == CDDVD)//move from ircmd_3dsound.c 2004-4-10 17:24

//wangap add for downmix off volume 2004/3/3
#ifndef AC3_BASS_MANAGEMENT
extern  BYTE    cspk_volume;
extern  BYTE    fspk_volume;
extern  BYTE    sspk_volume;
extern  int    downmix_off;
#endif

//Maoyong add 2004.02.14 must be same with the one in disp.c
#define		MAX_ENG_WORDS   3		
static inline void set_audio_pl2(void)
{
#ifdef  AUDIO_2CH_5_1CH//zhaoyanhua add 03-11-3 15:07
  #ifdef SUPPORT_PROLOGIC_II //axel 2004/1/28 10:39 
    if(pDSV->dNs_Audio_ch!=5)//when 2channle auido,must open PROLOGIC II
    {
        if(ChannelFlag == AUDIO_5_1CH)
           AudioSetPrologic_IIOutput();
    }
    else
  #endif //SUPPORT_PROLOGIC_II
    {
         //when 5.1channelaudio, current output mode is PROLOGIC II
         // must change to 5.1ch.
  #ifdef SUPPORT_PROLOGIC_II  //axel 2004/1/28 10:39
        if((ChannelFlag == AUDIO_5_1CH)&&(setup_GetPrologicII() != 4))
  #else
        if(ChannelFlag == AUDIO_5_1CH)
  #endif  //SUPPORT_PROLOGIC_II
           AudioSet5_1chOutput();	
    }
#endif    
}
/**************************************************************************
 *  Function Name: only_audio_mute                           
 *  Purposes:                                                             
 *       audio mute when enter one playing.                          
 *  Descriptions:                                                         
 *       mute audio when FF switch to play and play switch to FF.
 *  Arguments:                                                            
 *       audioNotContinuous:>0:audio is not continuous.                        
 *       for example, audioNotContinuous=5:mute 50ms.
 *       
 *  Returns:     NONE
 *  See also:    NONE                                                          
 *    
 **************************************************************************/

void only_audio_mute(void)
{
    if ( ( (cd_type_loaded==CDDA) || (cd_type_loaded==CDROM) ) && 
          (adv_search_time<=2) && (adv_search_time>=-2) )
    { //Jeff 20020918
        audioNotContinuous=5; //to do extra mute(50ms) when enter one playing, Jeff 20020910
    }
}
    
/*
* Terry,2004/1/13 11:58AM
* mute = 1 : mute
* mute = 2 : demute
* other    : abort
*/
#if 0 
void audio_codec_chg_mute(int mute)
{     	
    if(mute==1)	
    {
      if (!user_mute) 
      {
         audioNotContinuous=5;
         AudioSetVolume(0);
         #ifdef CHANGE_DSP_SPDIF_OFF
	   AudioSetSPDIF(0); //S-PDIF off mode command to DSP(0:off)
	   delay_srv_10ms(5);
         #endif//CHANGE_DSP_SPDIF_OFF
      }
    }else if(mute==2)
    { 

       //to unmute immediatelly when no audio-language could be selected.
       //Because valid selection is (determined and set) in deep (Audio_stream_Chg-Select_ASTN),
       //we undo former mute work here.       
       #ifdef CHANGE_DSP_SPDIF_OFF //nono 2003-12-23 20:14
        setup_SetSPDIFConfig();      
        AudioSetPause();
        AudioSetPlay();
       #endif//#ifdef CHANGE_DSP_SPDIF_OFF	
       audioNotContinuous=0;
       AudioDemute();
    }
}
#endif


#ifdef SUPPORT_MP4
void set_audio_language_Ns(UINT8 Ns)
{
    //pDSV->dAv_AST_Ns = Ns-1;
    pDSV->dAv_AST_Ns = Ns;//nono 4-8-25 15:49
}
#endif

//terry,2004/4/8 05:38PM
#define is_svcd() (cd_type_loaded==CDSVCD)
#ifdef SUPPORT_MP4
#define is_mp4()  (GetCurrentFileType()==CDROM_MP4)
#else
#define is_mp4()  (0)
#endif

#ifdef CHANNEL_SVCD_VALID//EASTECH
#define is_channel() ( (!is_dvd())&&(!is_mp4()) )   //(!is_svcd())&&  Modified by Tom
#else
#define is_channel() ( (!is_svcd())&&(!is_dvd())&&(!is_mp4()) )
#endif

#define is_language() ( is_svcd()||is_mp4() )

/*
*  Terry,2004/1/13 11:46AM
*/
/**************************************************************************
 *  Function Name: ircmd_audio_language                           
 *  Purposes:                                                             
 *      realize audio language function using IR language key,
 *      switch different audio track for dvd .                          
 *  Descriptions:                                                         
 *   
 *  Arguments:                                                            
 *     id: audio stream.
 *     Audio_stream_Chg: Ouput: 0~7:audio stream id  0xf:fail
 *                       The operation to set the stream number of
                         the audio and to change SPRM.
 *  Returns:     NONE
 *  See also:    NONE                                                          
 *    
 **************************************************************************/
 #ifdef SUPPORT_LINE_OUT_MUTE
    extern void use_rom_line_out_mute(void);
    extern void use_rom_line_out_demute(void);
#endif

void ircmd_audio_language(void)
{
#ifndef MAKE_ONLY_UPDATE_CODE//MAKE_ONLY_UPDATE_CODE:20050305 linrc only for make romA.bin(BootLoad).
    UINT16 id = 0;

    //----------------------------------------------------------------
    // Conditions in which we wish to override the whole function
    //----------------------------------------------------------------
    #ifdef AUDIO_KEY_CONTROL_CHANNEL    //libing 2005-4-21 22:00
    if((cd_type_loaded == CDVCD10)||(cd_type_loaded == CDVCD20))//||(cd_type_loaded==CDSVCD))
    {
        ircmd_channel();
        return;
    }
    if( is_channel() )
    {
        #ifdef CHANNEL_CD_MP3_INVALID
        if(Is_MP3_STATE()==1 || Is_JPEG_STATE() )  //add by Tom 
        {
            invalid_key();
            return;
        }
        #endif  //#ifdef CHANNEL_CD_MP3_INVALID
        ircmd_channel();
        return;
    }
    #endif  //#ifdef AUDIO_KEY_CONTROL_CHANNEL

    #ifdef DVB1000_NON_OS //moved from dvb_gui_util.c for supporting multi-APID by liuchuanyi 05/04/18
    if(system_state==SYSTEM_TS)
    {
        dvbAPIDSwitch();
        return;
    }
    #endif  //#ifdef DVB1000_NON_OS

    //-------------------------------------------------------------------------
    // Conditions in which we want to show invalid key or just ignore the key
    //-------------------------------------------------------------------------

    //kevinmonkey 060606 if IR command flows to this place, check stream number. 
    //currently meant for mpeg2 and AVI with subpicture/subtitle or multi audio track