Using DSP codecs on AM57x

Hi,

What software is this?

Hi,

I'm using AM57x/PSDK.
we are planning to use codecs available at software-dl.ti.com/.../index.html on AM57x/PSDK by integrating them with DSP-DCE.

I have successfully integrated the jpegdec IIMGDEC1, but while calling the process() API i'm getting the mentioned error

Thanks. The software team have been notified. They will respond here.

Hi Ramprasad,

Thank you for your response
One more problem is,codec_process() API in dsp-dce is expecting 7 params to be send, but if i follow OMAP_DCE_VIDDEC3, i'll have to send 6 params, and if i modify the dsp-dce codec_process() API to accept 6 params will this create any issue?

Hi Ramprasad,

As you said i followed the OMAP_DCE_VIDDEC3 for OMAP_DCE _IMGDEC1, but from mmrpc i'm getting error as write failed.

Hi Ramprasad,

I'm getting error while writing into the file as , "rpmsg_rpc rpmsg-dce-dsp: number of parameters mismatch! params = 6 expected = 7"
and this statement is present in rpmsg.c

ok,
I understood your issue.
In dce.c , below code is expecting 7 input paramters

{ "codec_process", 8,

but in libdce , I guess you have added below code.

} else if( codec_id == OMAP_DCE_IMGDEC1 ) {

numInBufs = ((XDM1_BufDesc *)inBufs)->numBufs;
numOutBufs = ((XDM1_BufDesc *)outBufs)->numBufs;
numXltAry = numInBufs + numOutBufs;
numParams = 6;

}

Since VIDDEC2 expects 7, you may have xlate one dummy buffer pointer in libdce for OMAP_DCE_IMGDEC1 and ignore this buffer pointer .
You need to do something like this.

Regarding memory allocation for the dsp-dce, where i have to adjust the memory for dsp-dce, as of now it is only 2 MB for data area, how to increase it?

Refer dsp_dce_1_xx/platform/ti/dce/baseimage/custom_rsc_table_vayu_dsp.h
It allocates 2MB for code and data and 40MB for heap.
#define DSP_MEM_TEXT_SIZE (SZ_1M * 2)

#define DSP_MEM_DATA_SIZE (SZ_1M * 2)
#define DSP_MEM_HEAP_SIZE (SZ_1M * 40)


Is this not sufficeint to your image decoder? Refer the image decoder's datasheet.

As u told me to create a dummy pointer and buffer to fill xlate array, i tried doing it but again i got the same error as yesterday

the code is as follows:
buf_arry = (void * *)(&(((XDM1_BufDesc *)outBufs)->descs[0].buf));
Fill_MmRpc_fxnCtx_OffPtr_Params(&(fxnCtx.params[OUTBUFS_PTR_INDEX]), (size_t)*buf_arry, (size_t)*buf_arry,
sizeof(MemHeader), (size_t)*buf_arry);
data_buf = (void * *)(&(((XDM1_BufDesc *)outBufs)->descs[0].buf));
Fill_MmRpc_fxnCtx_Xlt_Array(&(fxnCtx.xltAry[total_count]), OUTBUFS_PTR_INDEX,
MmRpc_OFFSET((int32_t)*buf_arry, (int32_t)data_buf), (size_t)*data_buf, (size_t)*data_buf);

buf_arry = (void * *)(&(((XDM1_BufDesc *)outBufs)->descs[1].buf));
Fill_MmRpc_fxnCtx_OffPtr_Params(&(fxnCtx.params[OUTBUFS_PTR_INDEX]), (size_t)*buf_arry, (size_t)*buf_arry,
sizeof(MemHeader), (size_t)*buf_arry);
data_buf = (void * *)(&(((XDM1_BufDesc *)outBufs)->descs[1].buf));
Fill_MmRpc_fxnCtx_Xlt_Array(&(fxnCtx.xltAry[total_count]), OUTBUFS_PTR_INDEX,
MmRpc_OFFSET((int32_t)*buf_arry, (int32_t)data_buf), (size_t)*data_buf, (size_t)*data_buf);

The error which i'm getting is :
rpmsg_rpc rpmsg-dce-dsp: xlate[3] offset is larger than data area! (sec_offset = 3069419537 size = 25363)

Please tell me what should i do for this, is that i'm xlating the buffers in wrong way, or some other problem?

Why can't i change the dsp_dce code to accept 6 params, i tried changing it to 6 but from rpmsg-dce i got an exception saying expected 7 but numparams are 6, please let me know how to come out of this issue.

Hi Ramprasad,


As per my understanding, for the OMAP_DCE_VIDDEC2( for which dsp-dce expects 8 arguments), the mmrps params array looks like this


codec_id, codec_name, inbufs, outbufs, inargs, outargs, outbufptr


and xlate array is something like this,

inbufs[0], outbufarray, outbufsizearray, outbuf[0], outbuf[1]


so, for OMAP_DCE_IMGDEC1,is it the same way i have to follow to manipulate these 2 arrays??

because when i tried filling these 3 extra things dummy, i got the same error as before.

Hi Neha,
There seems still some issue with libdce.
I am able to exeucte copycodectest with IMGDEC1 interface. It is working . Will let you know the details.

Hi Ramprsad,

Thank you for your response.
Please let me know how did u modify the libdce code to support IMGDEC1, and copycodectest.

I have modified libdce.c, dce.c and copycodectest.c
Can you share your mail-id?

yeah sure,

nehakhan1911@gmail.com

This is my pathpartner mail id,

neha.kauser@pathpartnertech.com