decoder Getting Failed at algInit

Anshul Maheshwari

Other Parts Discussed in Thread: SYSBIOS

i was trying to understand sv04

there I did wrote copied ti function and gave them name with ch2

            ret = _ALG_allocMemory_ch2(memTab, n);
           if ( ret == TRUE)
           {
               alg = (IALG_Handle) memTab[0].base;
               alg->fxns = fxns;

//               t_errno = 8989;
//               return NULL;

//               if ((ret = fxns->algInit(alg, memTab, p, params)) == IALG_EOK)
               if ((ret = fxns->algInit(alg,memTab,NULL, NULL)) == IALG_EOK)

               {
                   t_errno = -999;
                   return NULL;

                   return (alg);
               }
               t_errno = 9090;
               return NULL;

Mine objervation over here were i do get 8989 error but dont get 9090 and 999 error.

i feel like there is some kind of segmentation fault in alg_init

this is the code snippet from siuvctmemmgr.c

Sorry guys i dont have any emulator, working on advantech pcie 8581, yesterday i implemented provision for an intiger through mailbox

so errorno is all what i have for debuugiing

over 12 years ago

0 Paula Carrillo over 12 years ago

TI__Mastermind 40580 points

Anshul which decoder is giving you the error?

Paula

0 Hongmei Gou over 12 years ago in reply to Paula Carrillo

TI__Expert 4335 points

Hi Anshul,

One more follow up question: as you mentioned "ch2", are you attempting multiple channels with sv04?

Also we strongly recommend using emulator for the debugging, which will be great help.

Thanks,

Hongmei

0 Anshul Maheshwari over 12 years ago in reply to Hongmei Gou

Intellectual 790 points

HI paulo

H264hpdecoder (C66x_h264hpvdec_01_01_01_04_ELF)

Hi Hongmei

NO just now, its not multichannel, it was multichannel before,

emulator too costly : out of my budget :-(

regards

Anshul

0 Hongmei Gou over 12 years ago in reply to Anshul Maheshwari

TI__Expert 4335 points

Hi Anshul,

Are you able to run H264HP decoder with sv04.out packaged in the MCSDK Video release?

It looks like you made the following changes when calling algInit:

// if ((ret = fxns->algInit(alg, memTab, p, params)) == IALG_EOK)
if ((ret = fxns->algInit(alg,memTab,NULL, NULL)) == IALG_EOK)

Replacing p and params with NULL is incorrect, and I think that is why you got the error.

Thanks,

Hongmei

0 Anshul Maheshwari over 12 years ago in reply to Hongmei Gou

Intellectual 790 points

hi hongmei

the above statement that seems to be commented.

but that way i want to say none of statement was working,

my question was why that function is not returning me any error, instead just crashing whole of the thing.

thanks

0 Hongmei Gou over 12 years ago in reply to Anshul Maheshwari

TI__Expert 4335 points

Hi Anshul,

If there is invalid memory access or jumping to a NULL pointer, it can crash the DSP before returning any error.

Thanks,

Hongmei

0 Anshul Maheshwari over 12 years ago in reply to Hongmei Gou

Intellectual 790 points

got your point.

dont you feel like we should have an error checking if not for invalid memory, aleast for NULL

before giving any binary file to end user, end user can never get to know whether his parameter is wrong

or some thing else have happened.

thanks

anshul

0 Hongmei Gou over 12 years ago in reply to Anshul Maheshwari

TI__Expert 4335 points

Hi Anshul,

Thanks for the suggestion. There is error checking inside the codec. We will check if more can be added. In some cases, even error checking cannot avoid DSP crash, such as when program memory is corrupted.

Regards,

Hongmei

0 Rafael Kamm over 12 years ago in reply to Hongmei Gou

Intellectual 465 points

Hello,

I have problem with fxns->algInit(alg, memTab, p, params);

This function returns me -1 instead of 0 so my program is not working properly.

I have Omap L138, CCS 5.3, Sys/Bios 6.x, can somebody help?

0 Anshul Maheshwari over 12 years ago in reply to Rafael Kamm

Intellectual 790 points

Hi rafael

Do Check Memory given to algorithm. before looking for anything else.

have You written whole code yourself or taken reference from somewhere.

If Taken reference from existing code , please check the function pointer that you have given before algInit.

If You have written that code yourself you have do some changes in bios.cfg so that debug symbol can be printed.

Thanks

Anshul

0 Rafael Kamm over 12 years ago in reply to Anshul Maheshwari

Intellectual 465 points

I have an example form TI - mpeg4 libraty c64x+. Unfortunately this is for CCS 3.3 and I have CCS 5.3. I think I have something wrong in cfg file or in my main.c. In this thread I explained this:

http://e2e.ti.com/support/embedded/multimedia_software_codecs/f/356/p/278750/974890.aspx#974890

Please look at it if you can.

Raf

0 Anshul Maheshwari over 12 years ago in reply to Rafael Kamm

Intellectual 790 points

i saw ur other post ,plzz cross check the sysbios version and sysbios , why dont u give a try to run the

codec of latest version. u sud read the migration document from ccs 3 to cc5

thanks

anshul

0 Rafael Kamm over 12 years ago in reply to Anshul Maheshwari

Intellectual 465 points

Anshul,

I don't have other version. There is only one for c64x+.

Raf

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decoder Getting Failed at algInit