CCS: TDA2x: display problem

Yes!

This is because of dup link.

Dup Link: 

Used to duplicate “buffer information” from input Q into
multiple output Q’s
• Only duplicates “information”, pixel data is not copied
• Purpose is to send same input buffer to multiple consumers

Thanks

Gaviraju

But my question is why i am getting color image in one case and gray in another while displaying input (which  should come as color) just by changing the txt file of the use case

CASE 1:

when i use the below txt file then i got both images gray

NullSource -> Dup-> VPE_color-> Display_color

Dup->Alg_ColorToGray_YUV(DSP1)->VPE_gray-> Display_gray

GrpxSrc -> Display_Grpx

CASE 2:

but when i change the txt file to

NullSource -> Dup->Alg_ColorToGray_YUV(DSP1)->VPE_gray-> Display_gray

Dup->  VPE_color-> Display_color

GrpxSrc -> Display_Grpx

then i got the color and gray images on display_color and display_gray respectively

Hi,

In case :2 the link VPE_color is executing early before  the link Alg_ColorToGray_YUV(DSP1)  so why in case 1 the same thing is not happening.

Regards,

Pari Sharma

Hi,

I already mentioned it is depend on scheduler, Scheduler will decide when to run the link & we not recommended to do in-place algorithm computation for this use-case

Thanks

Gaviraju  

Hi,

i am a beginner in vision SDK programming so can please tell me what is scheduler and how it is working ,is there any document that i can refer for the same? 

Regards,

Pari Sharma 

Hi,

We don't have any document & you can find many resource in google regarding scheduler.

Thanks

Gaviraju

Hi,

I tried the same use case with non in place algorithm and still got the same output(both input and output images were gray).

I have one more question what is the significance of timer period millisecond parameter set in null source link ,does this parameter has any impact on the output?

Regards,

Pari Sharma

Hi,

I have one more question what is the significance of timer period millisecond parameter set in null source link ,does this parameter has any impact on the output?

>>> This will trigger the NEW_DATA_CMD in NullSrc link for every timer period. After this data will read from file & pass to the next link. This will impact on output.

Can I know what changes you have done in the Algorithm for NOTINPLACE mode?

Thanks

Gaviraju

colorToGray_Link_algPlugin.zip

Hi,

i have followed the frame copy algorithm for writing the algplugin.c  file.and in  process function  of algo.c file the below code is used .

Int32 Alg_ColorToGray_YUVProcess(Alg_ColorToGray_Obj *algHandle,
UInt32 *inPtr[],
UInt32 *outPtr[],
UInt32 width,
UInt32 height,
UInt32 inPitch[],
UInt32 outPitch[],
UInt32 dataFormat
)
{ Vps_printf("\n algorithm colour to gray process function \n");
Int32 rowIdx;
Int32 colIdx;

UInt32 wordWidth;

UInt32 *inputPtr;
UInt32 *outputPtr;
UInt32 mask = 0x00FF00FF;
UInt32 mask1 = 0x80008000;

if(dataFormat == SYSTEM_DF_YUV422I_YUYV)
{
wordWidth = (width*2)>>2;
}
else
{
return SYSTEM_LINK_STATUS_EFAIL;
}

inputPtr = inPtr[0];
outputPtr = outPtr[0];
for(rowIdx = 0; rowIdx < height ; rowIdx++)
{
for(colIdx = 0; colIdx < wordWidth ; colIdx++)
{
/* Masking chroma component */
*(outputPtr+colIdx) = *(inputPtr+colIdx);
*(outputPtr+colIdx) &= mask;
*(outputPtr+colIdx) |= mask1;

}
inputPtr += (inPitch[0] >> 2);
outputPtr += (outPitch[0] >> 2);
}
return SYSTEM_LINK_STATUS_SOK;
}

Regards,

Pari Sharma

Hi,

i have attached the algplugin.c file in previous reply

Regards,

Pari Sharma