TDA2PXEVM: Getting separate Video Buffer input to process and display

Shantanu Joshi

Expert 1320 points

Part Number: TDA2PXEVM

Hello all,

I am working on following usecase,

NetworkRx (A15) -> Decode -> Dup -> Sync -> Alg_A(DSP2)

Dup -> Alg_B (DSP1) -> VPE -> Alg_C(DSP1) -> Display_Video

My objective here is to check and display 4 different frame input from 4 different cameras (right now Network link is used) at Alg_C so as to process on any of 4 frame received as per selection given. Right now this usecase is able to run for single video frame only. How can I be able to achieve for 4 video frames using Video Buffer and not by Composite buffer?

Please provide your inputs.

Thanks & regards,

Shantanu

over 7 years ago

0 Yordan Kamenov over 7 years ago

TI__Mastermind 42515 points

Hi Shantanu,

would it be possible to use 4 channels? Can you check any of the existing multicam usecases for example.

Regards,
Yordan

0 Shantanu Joshi over 7 years ago in reply to Yordan Kamenov

Expert 1320 points

Hi Yordan,

I have used 4 channels but I am not able to understand how to use different channel for different frame and pass on to next link

Code Snippet :-

/*
* Populating parameters corresponding to Q usage of frame copy
* algorithm link
*/
numInputQUsed = 1;//4
numOutputQUsed = 1;//4
numChannelsUsed = 4; //1
pInputQInfo->qMode = ALGORITHM_LINK_QUEUEMODE_NOTINPLACE;
pOutputQInfo->qMode = ALGORITHM_LINK_QUEUEMODE_NOTINPLACE;
channelId = 0;
outputQId = 0;
inputQId = 0;
pOutputQInfo->queInfo.numCh = numChannelsUsed;

Also I am getting these values for following variables:-
inputBufList.numBuf = 1 and pSysBufferInput->chNum = 0/1/2/3

Please provide your inputs.

Thanks & Regards,
Shantanu

0 Anuj Gupta over 7 years ago in reply to Shantanu Joshi

TI__Genius 15985 points

Hi,

Whats the purpose of sync link in your usecase.
You can use select link to select any particular channel in a que and pass it to nect link for processing.

regards,
Anuj

0 Shantanu Joshi over 7 years ago in reply to Anuj Gupta

Expert 1320 points

Hi Anuj,

I have used Sync as Alg_A needs composite input.
Thanks for your input I am currently not working on this issue, but whenever I resume ,I will try out using select link.

Regards,
Shantanu

0 Anuj Gupta over 7 years ago in reply to Shantanu Joshi

TI__Genius 15985 points

Hi,

If this issue is not open then verify answer and close it.

Regards,
Anuj

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TDA2PXEVM: Getting separate Video Buffer input to process and display