capture->DSP loop back ->Display with OMX components

Gabi Gvili

Hi TI experts,

I am tyring to create a capture->DSP loop back -> Display example on OMX by merging two TI OMX examples: capture-encode and c6xtest.
The merge was done by connecting VLPB input buffer to DEI output buffer that was connected previously to display input buffer and connecting VLPB output buffer to display input buffer.
The example is going through the states of load, idle and execute OK, in execute state the example get stuck.
i see with the CCS that we arrive to the dsp functions OMX_TI_VLPB_DataNotify and not getting out.
Can anyone please help?

Thanks,
Gabi

over 14 years ago

0 Anirban Sengupta over 14 years ago

TI__Intellectual 1915 points

Gabi,

Can you share some more information about where it is stuck in the OMX_TI_VLPB_DataNotify function? You can enable the VLPB_DEBUG switch in omx_vlpb.c, recompile and re-run your test. And then share the CCS console output of DSP. Also please share the M3 firmware logs following the instructions given in http://processors.wiki.ti.com/index.php/OMX_Viewing_Media_Controller_Traces

Regards,

Anirban

0 Gabi Gvili over 14 years ago in reply to Anirban Sengupta

Genius 4120 points

Hi Anirban,

I have enabled VLPB_DEBUG recompiled and re-run, please see the attached CCS log file

7824.ccs.log

regarding the M3 firmware logs, i have been doing as instucted in http://processors.wiki.ti.com/index.php/OMX_Viewing_Media_Controller_Traces , but the log file created is empty.
Can you please advice regarding M3 logs?

Thanks,
Gabi

0 Gabi Gvili over 14 years ago in reply to Gabi Gvili

Genius 4120 points

Hello, anyone can help please?

0 Anirban Sengupta over 14 years ago in reply to Gabi Gvili

TI__Intellectual 1915 points

Gabi,

The ccs log indicates that there are no frames arriving on the input port of VLPB (DSP)

[C674X_0] Entered: OMX_TI_VLPB_DataNotify (0x99511b70)VLPB.A8: Number of Filled Frames in port: 0 is 0

The M3 firmware logs would help here as VFCC is connected to VLPB here.

Which version of EZSDK are you using? If its 05.03.00.09 or later, please be sure to use loggerSMDump as mentioned at http://processors.wiki.ti.com/index.php/OMX_Viewing_Media_Controller_Traces#LoggerSMDump_Utility

target #./loggerSMDump.out 0x9E400000 0x100000 vpss

Regards,

Anirban

0 Gabi Gvili over 14 years ago in reply to Anirban Sengupta

Genius 4120 points

Hi Anirban,

Thanks for your reply, i have managed to make the example work. what is important to do when trying to merge these two examples capture_encode and c6xtest is that allocation of both VLPB input and output buffers should be done by the VLPB component and all the components that connect to the VLPB must use (OMX_UseBuffer) the buffers allocated by the VLPB.

Gabi

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capture->DSP loop back ->Display with OMX components