vmbaddi.c

这是韩国EQUATOR公司提供的DEMO程序

/**
*** Copyright (c) 2001 Equator Technologies, Inc.
**/

//---------------------------------------------
//
// vlxmain()
//
//---------------------------------------------
//---------------------------------------------

//#define CONFIG_OVERRIDE_DEFAULT_YIELD_HANDLER
//#define CONFIG_NO_YIELD_HANDLER

// Declare standard virtual registers

register void (*pGbStallHandler)() asm ("greg0");

#include <vlxapi/vlxstd.h>
#include <vlxapi/vlx_mpeg_decode.h>

#include "vdata.h"
#include "vdata.c"
#include "vgetsc.c"

void _Error(int flag);

int main()
{

    //---------------------------------------------
    // Declarations
    //---------------------------------------------
    volatile int* pSema;

    int i;

    //---------------------------------------------
    // Execution
    //---------------------------------------------

    //
    // Init function pointer to gb stall handler
    //
    pGbStallHandler  = &VlxGbStallHandler; 

    //
    // Init pointers to data structs
    //
    pSema   = &sema.data;

    //
    // Setup GB configuration
    //

    VlxGbConfigDS(gb_config.data);
    VlxGbSetOptions( _GK2_SETOPT_COUNT_ONES );

    //
    // Find start code
    //
    if ( !GetStartcode() ) {
        status.start_code_found  = 0xe; 
        _Error(1);
    }
    status.start_code_found  = 0xb; 

    //
    // Process the macroblock_address_increment VLCs
    //
    for ( i = 0 ; i < 6 ; i++ ) {
       mbaddi_data.data[i] = VlxMpeg2GetMbAddrInc();
    }

    //
    // Signal the core that the vlx processing is complete
    //
    *pSema = 0;

} // end vlxmain()

//----------------------------------------------------
// Function : _Error
// Purpose  : Exit loop (if an error is detected)
//----------------------------------------------------
void _Error (int flag)
{
    status.exit_code  = flag;
    while(1);
}