TM6437原始碼問題

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TM6437原始碼問題 [复制链接]

以下為官方原始碼

/*

*/

/*

* Video Loopback Test

*

*/

#include "stdio.h"

#include "evmdm6437_dip.h"

#include "tvp5146.h"

#include<math.h>

#define NTSC 1

#define PAL 0

#define COLORBARS 1

#define LOOPBACK 0

#define SVIDEO_OUT 1

#define COMPOSITE_OUT 0

#define buf_size 720*480

#pragma DATA_SECTION(videoIn_buffer,".videoInbuffer");

#pragma DATA_SECTION(videoPro_buffer,".videoProbuffer");

#pragma DATA_SECTION(videoOut_buffer,".videoOutbuffer");

unsigned char videoIn_buffer[buf_size];

unsigned char videoPro_buffer[buf_size];

unsigned char videoOut_buffer[buf_size];

int i;

/* ------------------------------------------------------------------------ *

* *

* vpfe_init( ntsc/pal ) *

* *

* ------------------------------------------------------------------------ */

static void vpfe_init( Uint32 ntsc_pal_mode )

{

Uint32 video_buffer = DDR_BASE + ( DDR_SIZE / 2 );

Uint32 width=720;

Uint32 height=480;

VPFE_CCDC_SYN_MODE = 0x00032F84; // interlaced, with VD pority as negative

VPFE_CCDC_HD_VD_WID = 0;

VPFE_CCDC_PIX_LINES = 0x02CF020D;

/*

* sph = 1, nph = 1440, according to page 32-33 of the CCDC spec

* for BT.656 mode, this setting captures only the 720x480 of the

* active NTSV video window

*/

VPFE_CCDC_HORZ_INFO = width << 1; // Horizontal lines

VPFE_CCDC_HSIZE_OFF = width << 1; // Horizontal line offset

VPFE_CCDC_VERT_START = 0; // Vertical start line

VPFE_CCDC_VERT_LINES = height >> 1; // Vertical lines

VPFE_CCDC_CULLING = 0xFFFF00FF; // Disable cullng

/*

* Interleave the two fields

*/

VPFE_CCDC_SDOFST = 0x00000249;

VPFE_CCDC_SDR_ADDR = video_buffer;

// VPFE_CCDC_SDR_ADDR =0x83000000;

VPFE_CCDC_CLAMP = 0;

VPFE_CCDC_DCSUB = 0;

VPFE_CCDC_COLPTN = 0xEE44EE44;

VPFE_CCDC_BLKCMP = 0;

VPFE_CCDC_FPC_ADDR = 0x86800000;

VPFE_CCDC_FPC = 0;

VPFE_CCDC_VDINT = 0;

VPFE_CCDC_ALAW = 0;

VPFE_CCDC_REC656IF = 0x00000003;

/*

* Input format is Cb:Y:Cr:Y, w/ Y in odd-pixel position

*/

VPFE_CCDC_CCDCFG = 0x00000800;

VPFE_CCDC_FMTCFG = 0;

VPFE_CCDC_FMT_HORZ = 0x000002D0;

VPFE_CCDC_FMT_VERT = 0x0000020E;

VPFE_CCDC_FMT_ADDR0 = 0;

VPFE_CCDC_FMT_ADDR1 = 0;

VPFE_CCDC_FMT_ADDR2 = 0;

VPFE_CCDC_FMT_ADDR3 = 0;

VPFE_CCDC_FMT_ADDR4 = 0;

VPFE_CCDC_FMT_ADDR5 = 0;

VPFE_CCDC_FMT_ADDR6 = 0;

VPFE_CCDC_FMT_ADDR7 = 0;

VPFE_CCDC_PRGEVEN_0 = 0;

VPFE_CCDC_PRGEVEN_1 = 0;

VPFE_CCDC_PRGODD_0 = 0;

VPFE_CCDC_PRGODD_1 = 0;

VPFE_CCDC_VP_OUT = 0x041A2D00;

VPFE_CCDC_PCR = 0x00000001; // Enable CCDC

}

/* ------------------------------------------------------------------------ *

* *

* vpbe_init( colorbars/loopback, ntsc/pal, svideo/composite ) *

* *

* ------------------------------------------------------------------------ */

static void vpbe_init( Uint32 colorbar_loopback_mode, Uint32 ntsc_pal_mode, Uint32 output_mode )

{

Uint32 video_buffer = DDR_BASE + ( DDR_SIZE / 2 );

Uint32 basep_x;

Uint32 basep_y;

Uint32 width;

Uint32 height;

if ( ntsc_pal_mode == NTSC )

{

basep_x = 122;

basep_y = 18;

width = 720;

height = 480;

}

else

{

basep_x = 132;

basep_y = 22;

width = 720;

height = 480;

}

/*

* Setup VPBE

*/

VPSS_CLK_CTRL = 0x00000018; // Enable DAC and VENC clock, both at 27 MHz

VPBE_PCR = 0; // No clock div, clock enable

/*

* Setup OSD

*/

VPBE_OSD_MODE = 0x000000fc; // Blackground color blue using clut in ROM0

VPBE_OSD_OSDWIN0MD = 0; // Disable both osd windows and cursor window

VPBE_OSD_OSDWIN1MD = 0;

VPBE_OSD_RECTCUR = 0;

VPBE_OSD_VIDWIN0OFST = width >> 4;

VPBE_OSD_VIDWIN0ADR = video_buffer;

//VPBE_OSD_VIDWIN0ADR=0x85000000;

VPBE_OSD_BASEPX = basep_x;

VPBE_OSD_BASEPY = basep_y;

VPBE_OSD_VIDWIN0XP = 0;

VPBE_OSD_VIDWIN0YP = 0;

VPBE_OSD_VIDWIN0XL = width;

VPBE_OSD_VIDWIN0YL = height >> 1;

VPBE_OSD_MISCCTL = 0;

VPBE_OSD_VIDWINMD = 0x00000003; // Disable vwindow 1 and enable vwindow 0

// Frame mode with no up-scaling

/*

* Setup VENC

*/

if ( ntsc_pal_mode == NTSC )

VPBE_VENC_VMOD = 0x00000003; // Standard NTSC interlaced output

else

VPBE_VENC_VMOD = 0x00000043; // Standard PAL interlaced output

VPBE_VENC_VDPRO = colorbar_loopback_mode << 8;

VPBE_VENC_DACTST = 0;

VPBE_VENC_DACSEL = 0x00000000; //0x00004210 限用s端子

/*

* Choose Output mode

*/

/*

if ( output_mode == COMPOSITE_OUT )

VPBE_VENC_DACSEL = 0x00000000;

else if ( output_mode == SVIDEO_OUT )

VPBE_VENC_DACSEL = 0x00004210;

*/

}

/* ------------------------------------------------------------------------ *

* *

* video_loopback_test( ) *

* *

* ------------------------------------------------------------------------ */

Int16 video_loopback_test( )

{

Int16 ntsc_pal_mode;

Int16 output_mode;

EVMDM6437_DIP_init( );

do

{

for( i=0;i<buf_size;i++)

video_buffer=0;

// Check Video Settings

ntsc_pal_mode = EVMDM6437_DIP_get( JP1_JUMPER ); // NTSC/PAL

output_mode = EVMDM6437_DIP_get( SW7_SWITCH ); // SVideo/Composite

if ( ntsc_pal_mode == NTSC )

{

if ( output_mode == COMPOSITE_OUT )

printf( " Video Loopback test: [NTSC][COMPOSITE]\n" );

else if ( output_mode == SVIDEO_OUT )

printf( " Video Loopback test: [NTSC][S-VIDEO]\n" );

else

return -1;

}

else if ( ntsc_pal_mode == PAL )

{

if ( output_mode == COMPOSITE_OUT )

printf( " Video Loopback test: [PAL][COMPOSITE]\n" );

else if ( output_mode == SVIDEO_OUT )

printf( " Video Loopback test: [PAL][S-VIDEO]\n" );

else

return -1;

}

else

return -2;

// Setup Front-End

tvp5146_init( ntsc_pal_mode, output_mode );

vpfe_init( ntsc_pal_mode );

// Setup Back-End

vpbe_init( LOOPBACK, ntsc_pal_mode, output_mode );

// Wait for the USER to press something useful

while ( 1 )

{

EVMDM6437_I2C_GPIO_waitForIntr( -1 );

if ( EVMDM6437_DIP_get( JP1_JUMPER ) != ntsc_pal_mode )

break;

if ( EVMDM6437_DIP_get( SW7_SWITCH ) != output_mode )

break;

}

} while ( 1 );

return 0;

}

//================================================================//

想問一下，我想要編撰輸出影像的暫存器，讓輸出影像可以直接看的到影像處理後的結果

EX:動態SOBEL側邊.........現在問題卡在我完全不了解BUFFER在哪邊可以改邊直接修改輸出影像

#pragma DATA_SECTION(videoIn_buffer,".videoInbuffer");

#pragma DATA_SECTION(videoPro_buffer,".videoProbuffer");

#pragma DATA_SECTION(videoOut_buffer,".videoOutbuffer");

unsigned char videoIn_buffer[buf_size];

unsigned char videoPro_buffer[buf_size];

unsigned char videoOut_buffer[buf_size];

這段是我試打上去的，對其修改沒特別變化

希望哪位高手能幫幫忙

3Q