RTOS/DRA76P: VIP capture use VPE link to convert UYUV to YUV_SP not show correct

fanok

Expert 2400 points

Part Number: DRA76P

Tool/software: TI-RTOS

hi all,

can VPE convert SYSTEM_DF_YUV422I_UYVY to SYSTEM_DF_YUV420SP_UV ?

my link design as following:

NullSource_Animation (A15) -> Decode -> Merge_Vid3 -> Display_vid3

Capture -> Dup_Cap -> VPE_Cap -> Merge_Vid3

Dup_Cap -> Gate_Cap -> Null_Cap (A15)

As animation output is SYSTEM_DF_YUV420SP_UV fomat, so i need convert Capture to SYSTEM_DF_YUV420SP_UV,

my capture output is 720x480 , format is SYSTEM_DF_YUV422I_UYVY, and screen size is 1920x720, so i add the VPE link setting as following:

pPrm->enableOut[0] = TRUE;

pPrm->chParams[0].outParams[0].numBufsPerCh = VPE_LINK_NUM_BUFS_PER_CH_DEFAULT;

            pPrm->chParams[0].outParams[0].width = 1920;
            pPrm->chParams[0].outParams[0].height = 720;
            pPrm->chParams[0].outParams[0].dataFormat = SYSTEM_DF_YUV420SP_UV; //SYSTEM_DF_YUV422I_UYVY;

            pPrm->chParams[0].scCfg.bypass       = FALSE;
            pPrm->chParams[0].scCfg.nonLinear    = FALSE;
            pPrm->chParams[0].scCfg.stripSize    = 0;

            pPrm->chParams[0].scCropCfg.cropStartX = 0;
            pPrm->chParams[0].scCropCfg.cropStartY = 0;
            pPrm->chParams[0].scCropCfg.cropWidth = 1920;
            pPrm->chParams[0].scCropCfg.cropHeight = 720;

animation can show well, but when i switch to capture it not show correct. why?

if just only capture without animation, VIP link work well. whether the index of chParams and outParams are wrong ?

over 6 years ago

0 Brijesh Jadav over 6 years ago

TI__Guru**** 475745 points

Hi,

Yes, VPE can convert YUV422 to YUV420.. what artifacts/error are you seeing? Any error reported by VPE?

Rgds,
Brijesh

0 fanok over 6 years ago in reply to Brijesh Jadav

Expert 2400 points

hi Brijesh,

there are not report any error,

the result is:

if only have capture, and link as following:

Capture -> Dup_Cap -> VPE_Cap -> Display_vid3

Dup_Cap -> Gate_Cap -> Null_Cap (A15)

the vpe can work well.

best regard!

0 fanok over 6 years ago in reply to Brijesh Jadav

Expert 2400 points

hi Brijesh,

i change the link as following:

NullSource_Animation (A15) -> Decode -> Merge_Vid3

Capture -> VPE_Cap -> Dup_Cap -> Merge_Vid3 -> Display_vid3

Dup_Cap -> Gate_Cap -> Null_Cap (A15)

then i dump the capture images by Null link, it seem VPE is not work. the image is also 720x240, and the data is not correct.

and if i change size to 1920x720 to show:

this picture is the same to the image show on the screen.

so i think VPE is not work correct.

best regards!

0 fanok over 6 years ago in reply to Brijesh Jadav

Expert 2400 points

hi Brijesh,

if i change the link path to :

Capture -> Dup_Cap -> VPE_Cap -> Merge_Vid3

Dup_Cap -> Gate_Cap -> Null_Cap (A15)

NullSource_Animation (A15) -> Decode -> Merge_Vid3 -> Display_vid3

then Capture can show normally but Animation can not show normally, why? it is just adjust the order of capture and animation into Merge_Vid3 link.

best regards!

0 Brijesh Jadav over 6 years ago in reply to fanok

TI__Guru**** 475745 points

Hi,

I have question, how do you switch display from capture to animation? Is it just changing the input channel in display?
Since capture is working, it means VPE parameter and config is correct. Are the resolution for both decode and VPE outputs are same? Do you require to change in input resolution/scaling for VPE and/or decode output?

Rgds,
Brijesh

0 fanok over 6 years ago in reply to Brijesh Jadav

Expert 2400 points

hi Brijesh,

yes, i change the input channel of display.

yes the resolution of decode and VPE output are the same that is 1920x720.

the following is my designed plan:
animation file(H264 , 1920x720) ---> decode (YUV420_SP, 1920X720)---> Merge
capture -> VIP (UYUV, 720x240) -> VPE (YUV420_SP, 1920X720) -> Merge -> Display (1920x720)

best regards!

0 Brijesh Jadav over 6 years ago in reply to fanok

TI__Guru**** 475745 points

Hi fanok,

Are there any difference in image pitch? If i remember correctly, decoder output will have some padding and so pitch could be different, even though resolution is same.

Rgds,
Brijesh

0 fanok over 6 years ago in reply to Brijesh Jadav

Expert 2400 points

hi Brijesh,

i dump the buffer info of two input channel in merger link:
[HOST] [IPU2 ] 96.997224 s: MERGE: que[1] numBuf = 1, chNum = 1
[HOST] [IPU2 ] 96.997346 s: width = 1920, height = 720, pitch[0] = 2048

[HOST] [IPU2 ] 97.005703 s: MERGE: que[0] numBuf = 1, chNum = 0
[HOST] [IPU2 ] 97.005825 s: width = 1920, height = 720, pitch[0] = 1920

you can see that animation pitch is 2048 not 1920, and capture pitch is 1920.

and what can i do the decoder pitch is no 1920?

best regards!

0 Brijesh Jadav over 6 years ago in reply to fanok

TI__Guru**** 475745 points

Hi fanok,

For both the outputs, frame size are different. decoder output frame size is 1920x720 with 2048 as pitch, whereas VPE output frame size is 720x240 with 720 frame size..
This is why display goes bad when you switch the channel..
Please output same frame size with pitch for both the outputs..

Regards,
Brijesh

0 fanok over 6 years ago in reply to Brijesh Jadav

Expert 2400 points

hi Brijesh,

i make a mistake, i redump the log

[HOST] [IPU2 ] 96.997224 s: MERGE: que[1] numBuf = 1, chNum = 1
[HOST] [IPU2 ] 96.997346 s: width = 1920, height = 720, pitch[0] = 2048

[HOST] [IPU2 ] 97.005703 s: MERGE: que[0] numBuf = 1, chNum = 0
[HOST] [IPU2 ] 97.005825 s: width = 1920, height = 720, pitch[0] = 1920

i want to know how to set the decoder paramter so that the pitch is the same to width.

best regards!

0 Brijesh Jadav over 6 years ago in reply to fanok

TI__Guru**** 475745 points

Hi fanok,

Give me some time for decoder link.

Meanwhile, can you try changing VPE link output pitch?
Can you hard code output pitch to 2048 in VpeLink_drvCreateOutObj API in the vision_sdk\links_fw\src\rtos\links_ipu\vpe\vpeLink_drvCommon.c file? at around line number 520? This will make pitch same for both VPE and decode output..

Rgds,
Brijesh

0 Brijesh Jadav over 6 years ago in reply to Brijesh Jadav

TI__Guru**** 475745 points

Just change to

pFormat->pitch[0] = 2048;
pFormat->pitch[1] = pFormat->pitch[0];
pFormat->pitch[2] = pFormat->pitch[0];

0 fanok over 6 years ago in reply to Brijesh Jadav

Expert 2400 points

hi Brijesh,

thanks for your help, i will try.

Processors

Processors forum

RTOS/DRA76P: VIP capture use VPE link to convert UYUV to YUV_SP not show correct