TDA2xEVM: Need help dumping output of segmentation demo to a file instead of display

Bhargav Dave

Hi,

I'm trying to modify the segmentation demo (by adding another use case - segWrite) and dumping to file instead of displaying the segmented output.

I've changed the final link from Display to Null and have implemented the null line callback function and file write task similar to the tidl usecase.

However, I'm not getting proper output. Do you have a patch for this change?

Here is my implementation: segWrite.zip

over 7 years ago

0 Yordan Kamenov over 7 years ago

TI__Mastermind 42515 points

Hi Bhargav,

I have forwarded your question to an expert for comment.

Regards,
Yordan

0 Prasad Jondhale over 7 years ago

TI__Mastermind 27743 points

Hello Bhargav,

Are you getting any output frames dumped? or not at all?
Can you please refer to below use-case which uses file write?
vision_sdk\apps\src\rtos\usecases\tidl
vision_sdk\apps\src\rtos\usecases\saveDisFrame

0 Bhargav Dave over 7 years ago in reply to Prasad Jondhale

Intellectual 820 points

Hi Prasad,

I am getting some output but it's not making sense.

I have referred the TIDL for implementing segWrite shared in the original post. It would be a great help if you can have a look and let me know if something obvious is wrong with it. I'm new to links and chains and may have made some obvious mistake.

0 Prasad Jondhale over 7 years ago in reply to Bhargav Dave

TI__Mastermind 27743 points

Hello Bhargav,

I see you have made some changes in the file write callback (some part commented out).
Is this because use-case input is changed?

0 Bhargav Dave over 7 years ago in reply to Prasad Jondhale

Intellectual 820 points

Hi Prasad,

My use case is same as semSeg use case except that the last link is Null instead of Display. So I've tried to modify the write callback as per that.
Do you see any problems with the code?

However, even with the original implemntation of callback I was not getting correct outputs.

0 Prasad Jondhale over 7 years ago in reply to Bhargav Dave

TI__Mastermind 27743 points

Bhargav,

Not sure why you are dumping the metadata into the file whereas you have video data coming from the previous link.

Please try attached. If it doesnt work change ChainsCommon_Osal_fileWrite to write whole frame in single call as you were doing earlier keeping remaining part same

./cfs-file/__key/communityserver-discussions-components-files/791/7853.chains_5F00_segWrite.c

0 Prasad Jondhale over 7 years ago in reply to Prasad Jondhale

TI__Mastermind 27743 points

Also i would request you to refer vision_sdk\apps\src\rtos\usecases\saveDisFrame as this is also dumping frames.
TIDL use case you are referring dumps metadata.

0 Bhargav Dave over 7 years ago in reply to Prasad Jondhale

Intellectual 820 points

Hi Prasad,

Your change of dumping frames directly to file using ChainsCommon_Osal_fileWrite() worked!

Really, really appreciate your help on this matter!

0 Prasad Jondhale over 7 years ago in reply to Bhargav Dave

TI__Mastermind 27743 points

Bhargav,

Glad to help. Thanks.

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TDA2xEVM: Need help dumping output of segmentation demo to a file instead of display