What is the input resolution limitation of standalone Scalar link in RDK01.09.00.16?

James Chu

Hi everyone,

I try to use the standalone scalar link in RDK01.09.00.16. But I find when input frame resolution

is 704x576, the standalone scalar link can work properly. But If the input frame resolution is 720p or 1080p,

the system will be down. it halts at

pObj->fvidHandle = FVID2_create(FVID2_VPS_M2M_SC_DRV,
                                       pathId,
                                       &pObj->scCreateParams,
                                       &pObj->scCreateStatus, &cbParams);

So, is this the input resolution limitation of standardalone scalar link? Or I do the wrong thing? If the limitation

exists, what is the limitation? Thanks.

Sincerely,

James

over 13 years ago

0 HardikShah over 13 years ago

TI__Mastermind 20245 points

Hi,

Scalar cant take more than 960 Pixels per line in horizontal direction for YUV422 format. So if you are using YUV422 format scalar wont work for 720P and 1080P.

Regards,

Hardik shah

0 James Chu over 13 years ago in reply to HardikShah

Intellectual 480 points

Dear Hardik,

Thank you for your reply. Is there still a limitation if I use YUV420 format? And what is the limitation for YUV420 format?

Thanks.

Sincerely,

James

0 HardikShah over 13 years ago in reply to James Chu

TI__Mastermind 20245 points

Hi,

For YUV420 limitation is 1920 pixels in a line. For ES2.0 version of silicon YUV422 is also having 1920 pixels. Only for ES1.1 we have 960 pixels.

Regards,

Hardik Shah

0 James Chu over 13 years ago in reply to HardikShah

Intellectual 480 points

Dear Hardik,

I try below use case (partial)

smMs->sclr->nsf->ipc->enc->ipc

It cas run properly and generate bitstream. However, if I try below use case (partial)

smMs->nsf->sclr->nsf->ipc->enc->ipc

It still can run. But no bitstream is generated. And if I stop chains, it will be down.

The cause I use nsf is for 422 to 420 transform. So I can let sclr input's resoluion large enough.

Does I do something wrong? Please give me some advices. Thanks.

Sincerely,

James

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What is the input resolution limitation of standalone Scalar link in RDK01.09.00.16?