TDA4VM: Multi-process encode in Linux will cause stuck

Ming Zhong10

Part Number: TDA4VM

Dear experts,

I am helping our customer to reproduce this issue. Now, I am working on 7.0 SDK release.

By default, VIDEO_ENCODER_MAX_HANDLES = 2. In most of our use case, we will use more than 2 channel encoding, so we change it to 8.

When you launched one process to do encoding, it works fine, and let it run background. Then launch the second one, it works fine. When you launch the third process, encoder will got stuck(all 3 encoder process stopped).

CMDs to reproduce: (you need to find a longer yuv file for encoding, so that all 3 process can run background at the same time.)

1. VX_TEST_DATA_PATH=/opt/vision_apps/test_data ./vx_app_conformance.out --filter=tivxHwaVideoEncoder.SingleStreamProcessing &

2. VX_TEST_DATA_PATH=/opt/vision_apps/test_data ./vx_app_conformance.out --filter=tivxHwaVideoEncoder.SingleStreamProcessing &

3. VX_TEST_DATA_PATH=/opt/vision_apps/test_data ./vx_app_conformance.out --filter=tivxHwaVideoEncoder.SingleStreamProcessing &

Thanks & Best Regards!

over 5 years ago

0 Brijesh Jadav over 5 years ago

TI__Guru**** 481095 points

Hi ZM,

Do you see any memory allocation issue? Just wondering if it is failing due to some memory allocation issue.

Rgds,

Brijesh

0 Ming Zhong10 over 5 years ago in reply to Brijesh Jadav

TI__Intellectual 2235 points

No. If you do not change VIDEO_ENCODER_MAX_HANDLES, you will get some error messages.

After changing VIDEO_ENCODER_MAX_HANDLES, you will not get any message.

0 David Huang over 5 years ago in reply to Ming Zhong10

TI__Intellectual 2440 points

Hi ZM,

Can you clarify for me, do we see this issue if you run the SingleStreamProcessing test only twice simultaneously?

Thanks,

David

0 Ming Zhong10 over 5 years ago in reply to David Huang

TI__Intellectual 2235 points

Hi David,

No issue with 2 singleStreamProcessing.

I can see issue with 3 singleStreamProcessing. (That's why I mentioned how I modified the micro in my question)

Thanks & Best Regards!

0 Brijesh Jadav over 5 years ago in reply to Ming Zhong10

TI__Guru**** 481095 points

Hi ZM,

I guess you are able to make some progress, correct?

Regards,

Brijesh

0 Ming Zhong10 over 5 years ago in reply to Brijesh Jadav

TI__Intellectual 2235 points

Hi Brijesh,

I have done some test, but did not succeed. I have an internal mail to discuss this.

I will update this thread once I got the solution.

Thanks & Best Regards!

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TDA4VM: Multi-process encode in Linux will cause stuck