AM62P-Q1: encode error

z lin

Part Number: AM62P-Q1

hi experts ,

SDK version: 11.01

we use V4l2 interface to encode, sometimes, when call

xioctl(handle->fd, VIDIOC_QBUF, &buf)) function, report "contiguous chunk is too small 212992/2119680" error. when this error occours, need to restart system, then the encode function may work normally.

Meanwhile, we found that the remaining CMA is sufficient.

1 month ago

0 z lin 1 month ago

Prodigy 80 points

our encode image size is 1920*736

0 Suren Porwar 1 month ago in reply to z lin

TI__Mastermind 32960 points

Hi,

Can you help us reproduce this issue on our EVM?

Best Regards,

Suren

0 z lin 1 month ago in reply to Suren Porwar

Prodigy 80 points

Hi,

Is the memory allocated by the

gbm_bo_create() function physically contiguous?

Best Regards,

linz

0 Suren Porwar 1 month ago in reply to z lin

TI__Mastermind 32960 points

Please share your pipeline or parameters you are setting for the encoder?

How can we reproduce the issue?

Best Regards,

Suren

0 z lin 1 month ago in reply to Suren Porwar

Prodigy 80 points

Hi,

our pipeline is camera->GPU->encode(H.264).

Previous we use

V4L2_MEMORY_DMABUF memory to encode(the buffer use gbm_bo_create() functiion allocated), power on, power off system sometime will reproduce this issue,

The probability is 1%. you can check why use V4L2_MEMORY_DMABUF memory cause this issue

now we use

V4L2_MEMORY_MMAP memory, don't reproduce this issue.

0 Suren Porwar 29 days ago in reply to z lin

TI__Mastermind 32960 points

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/791/4118.0001_2D00_Fixes_2D00_for_2D00_memory_2D00_leak_2D00_v4l2.patch

Hi,

Can you please add the above patch and give it a try. Add the patch to gst-plugins-good and build the Gstreamer package.

Let us know how it goes.

Best Regards,

Suren

0 z lin 23 days ago in reply to Suren Porwar

Prodigy 80 points

Hi，

we didn't obtain Gstreamer sourcecode, so we can't build it.

Best Regards,

linz

0 Suren Porwar 23 days ago in reply to z lin

TI__Mastermind 32960 points

Gstreamer package is part of the yocto build. Are you using yocto to build the wic image?

Best Regards

Suren

0 z lin 23 days ago in reply to Suren Porwar

Prodigy 80 points

Hi,

NO, we didn't use yocto build. can you provie a patch of v4l2, we build the kernel, then we will try to test it.

Best Regards

linz

0 Suren Porwar 22 days ago in reply to z lin

TI__Mastermind 32960 points

So how do you build the entire SDK image? The SDK has Gstreamer included?

Best Regards,

Suren

0 z lin 22 days ago in reply to Suren Porwar

Prodigy 80 points

The sdk include a default image, it's included Gstreamer.

Best Regards,

linz

0 Suren Porwar 6 days ago in reply to z lin

TI__Mastermind 32960 points

Hi,

Please let me know with whom you are working in the China Field team, to better support you.

Best Regards

Suren

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AM62P-Q1: encode error