hi,all
I met some problem when i use the functions of c6accel to convert yuvu to rgb565.
The code is as follow:
void c6accel_IMG_YUYV_to_RGB(C6accel_Handle hC6accel,unsigned char *yuyv,unsigned char *rgb,int captureWidth,int captureHeight,int displayWidth,int displayHeight)
{ unsigned int h,w;
unsigned char *pY, *pCb, *pCr;
struct timeval before, after, result;
/* Create a CMem heap array that can be translated for DSP */
short *pYUV2RGB_Cmem;
pYUV2RGB_Cmem = Memory_alloc(5*sizeof(short),&testfxnsMemParams);
memset (pOutBuf_16bpp,0x00,captureWidth*captureHeight*2*sizeof(char));
memset (pSrcBuf_16bpp,0x00,captureWidth*captureHeight*2*sizeof(char));
memcpy (pSrcBuf_16bpp,yuyv,captureWidth*captureHeight*2*sizeof(char));
pY = pOutBuf_16bpp;
//pY = pSrcBuf_16bpp;
pCb = pY + captureWidth*captureHeight;
pCr = pCb + (captureWidth*captureHeight)/2;
/* Call the yc_demux_be8 to generate 422*/
C6accel_IMG_yc_demux_le8_8(hC6accel,captureWidth*captureHeight,(unsigned char*)pSrcBuf_16bpp,pY, pCr, pCb);
memset (pRefBuf_16bpp,0x00,captureWidth*captureHeight*2*sizeof(char));
/* Call the _ycbcr422pl_to_rgb565 as we have 422P data in memory */
gettimeofday(&before, NULL);
C6accel_IMG_ycbcr422pl_to_rgb565(hC6accel,pYUV2RGB_Cmem,pY, pCb, pCr,(unsigned short*)pRefBuf_16bpp,captureWidth*captureHeight);
gettimeofday(&after, NULL);
/*after calling C6accel_IMG_yc_demux_le8_8 & C6accel_IMG_ycbcr422pl_to_rgb565, what i see on the display device is all black*/
/*if i don't call the function C6accel_IMG_yc_demux_le8_8 and set the pY = pSrcBuf_16bpp; then call the function C6accel_IMG_ycbcr422pl_to_rgb565,i can see double image on the display device */
timeval_subtract(&result, &after, &before);
printf("C6accel_IMG_ycbcr422pl_to_rgb565() Result Time:\t%ld %ld\n",result.tv_sec, result.tv_usec);
/*the time C6accel_IMG_ycbcr422pl_to_rgb565 cost each time is 0.06s,is this too long?*/
if (C6Accel_readCallType(hC6accel) == ASYNC){
// Now wait for the callback
//LOG_STRING(" ,C6accel_IMG_ycbcr422pl_to_rgb565() wait for callback,");
//START_BENCHMARK();
C6accel_waitAsyncCall(hC6accel);
//END_AND_WRITE_BENCHMARK();
}
unsigned char *temp=(unsigned char*)pRefBuf_16bpp;
for(h=0;h<displayHeight;h++)
{
for(w=0;w<captureWidth*2;w++)
rgb[w]=temp[w];
rgb +=displayWidth*2;
//pOutBuf_16bpp +=captureWidth*2*sizeof(char);
temp +=captureWidth*2;
}
/* Free YUV2RGB CMEM array*/
Memory_free(pYUV2RGB_Cmem,sizeof(short)*5,&testfxnsMemParams);
}
the problems i described above and marked red, i am new ,please help me,thanks~~