Linux/DRA72XEVM: System_Buffer support to handle multiple channels in nullSrc Decode Display

Rajesh Kannan

Part Number: DRA72XEVM

Tool/software: Linux

Hi TI,

Using PVSDK_03_04 SDK in DRA72XEVM board. Using NullSrc + Decode + Display usecase.

In NullSrcLink_processData() function, based on channel number OSA_bufGetEmptyBuffer(&pObj->outBufQue, &pBuffer, OSA_TIMEOUT_NONE); function will be called.

For each channel number 104 bytes will be assigned for System_Buffer *pBuffer. (Getting the address and processing and releasing mechanism should happen)

In a couple of iterations between the channels 1560 is getting incremented instead of increasing 104 bytes.

[HOST] [HOST ] 43.252851 s: ITS getting empty pBuffer is 0x2f7878 ChId = 0

[HOST] [HOST ] 43.252912 s: ITS putting full pBuffer is 0x2f7878 ChId = 0
[HOST] [HOST ] 43.252912 s: ITS getting empty pBuffer is 0x2f78e0 ChId = 1 8e0 - 878 = 104 bytes

[HOST] [HOST ] 43.252943 s: ITS putting full pBuffer is 0x2f78e0 ChId = 1
[HOST] [HOST ] 43.252943 s: ITS getting empty pBuffer is 0x2f7948 ChId = 2

[HOST] [HOST ] 43.252943 s: ITS putting full pBuffer is 0x2f7948 ChId = 2
[HOST] [HOST ] 43.252973 s: ITS getting empty pBuffer is 0x2f79b0 ChId = 3

[HOST] [HOST ] 43.252973 s: ITS putting full pBuffer is 0x2f79b0 ChId = 3
[HOST] [HOST ] 43.285731 s: ITS getting empty pBuffer is 0x2f7ef8 ChId = 0

[HOST] [HOST ] 43.285731 s: ITS putting full pBuffer is 0x2f7ef8 ChId = 0
[HOST] [HOST ] 43.285762 s: ITS getting empty pBuffer is 0x2f7f60 ChId = 1

[HOST] [HOST ] 43.285762 s: ITS putting full pBuffer is 0x2f7f60 ChId = 1
[HOST] [HOST ] 43.285762 s: ITS getting empty pBuffer is 0x2f7fc8 ChId = 2

[HOST] [HOST ] 43.285792 s: ITS putting full pBuffer is 0x2f7fc8 ChId = 2
[HOST] [HOST ] 43.285792 s: ITS getting empty pBuffer is 0x2f8030 ChId = 3

[HOST] [HOST ] 43.285853 s: ITS putting full pBuffer is 0x2f8030 ChId = 3
[HOST] [HOST ] 43.318642 s: ITS getting empty pBuffer is 0x2f8578 ChId = 0

[HOST] [HOST ] 43.318642 s: ITS putting full pBuffer is 0x2f8578 ChId = 0
[HOST] [HOST ] 43.318642 s: ITS getting empty pBuffer is 0x2f85e0 ChId = 1

[HOST] [HOST ] 43.318672 s: ITS putting full pBuffer is 0x2f85e0 ChId = 1
[HOST] [HOST ] 43.318672 s: ITS getting empty pBuffer is 0x2f8648 ChId = 2

[HOST] [HOST ] 43.318672 s: ITS putting full pBuffer is 0x2f8648 ChId = 2
[HOST] [HOST ] 43.318703 s: ITS getting empty pBuffer is 0x2f86b0 ChId = 3

[HOST] [HOST ] 43.318703 s: ITS putting full pBuffer is 0x2f86b0 ChId = 3
[HOST] [HOST ] 43.351674 s: ITS getting empty pBuffer is 0x2f8bf8 ChId = 0

[HOST] [HOST ] 43.351704 s: ITS putting full pBuffer is 0x2f8bf8 ChId = 0
[HOST] [HOST ] 43.351735 s: ITS getting empty pBuffer is 0x2f8c60 ChId = 1

[HOST] [HOST ] 43.351765 s: ITS putting full pBuffer is 0x2f8c60 ChId = 1
[HOST] [HOST ] 43.351765 s: ITS getting empty pBuffer is 0x2f8cc8 ChId = 2

[HOST] [HOST ] 43.351765 s: ITS putting full pBuffer is 0x2f8cc8 ChId = 2
[HOST] [HOST ] 43.351796 s: ITS getting empty pBuffer is 0x2f8d30 ChId = 3

[HOST] [HOST ] 43.351796 s: ITS putting full pBuffer is 0x2f8d30 ChId = 3
[HOST] [HOST ] 43.384645 s: ITS getting empty pBuffer is 0x2f7878 ChId = 0

[HOST] [HOST ] 43.384676 s: ITS putting full pBuffer is 0x2f7878 ChId = 0
[HOST] [HOST ] 43.384676 s: ITS getting empty pBuffer is 0x2f78e0 ChId = 1

[HOST] [HOST ] 43.384676 s: ITS putting full pBuffer is 0x2f78e0 ChId = 1
[HOST] [HOST ] 43.384706 s: ITS getting empty pBuffer is 0x2f7ef8 ChId = 2

[HOST] [HOST ] 43.384706 s: ITS putting full pBuffer is 0x2f7ef8 ChId = 2 ef8 -8e0 = Decimal value: 1560, Hex value: 618
[HOST] [HOST ] 43.384706 s: ITS getting empty pBuffer is (nil) ChId = 3

[HOST] [HOST ] 43.384706 s: pBuffer is NULL ERROR ChId = 3

In which scenario is it happening ?

Kindly suggest me to solve this issue !!!

Regards,

Rajesh Kannan S

over 6 years ago

0 Anuj Gupta over 6 years ago

TI__Genius 15985 points

Hi,

Multiple channel support is not available with nullSrc link.

/* Only one channel is supported as of now */
OSA_assert(pPrm->outQueInfo.numCh == 1U);

Regards,
Anuj

0 Rajesh Kannan over 6 years ago in reply to Anuj Gupta

Genius 4480 points

Hi Anuj,

I have customized nullSrc with 4 channel its working fine.

For 4th channel, I have enabled SwMs link for MOSAIC VIEW support. After enabled MOSAIC support I'm getting pBuffer is NULL for different iterations. Debugging this issue. Kindly suggest

Regards,

Rajesh Kannan S

0 Rajesh Kannan over 6 years ago in reply to Rajesh Kannan

Genius 4480 points

Hi Anuj,

Pbuffer is getting NULL, because of SR2 region is having only 64MB.

If I'm trying to increase the channel number its getting NULL. Could you suggest me how to increase the SR2 memory region.

SR1 is having 250MB. I'm not using SR1 region.

Kindly suggest me to solve this issue !!!

Regards,

Rajesh Kannan S

0 Rajesh Kannan over 6 years ago in reply to Rajesh Kannan

Genius 4480 points

Hi,

Anybody can reply this forum. SR2 region mem size how it will be increased from .xs file.

Is it falling second 512 memory ? How I can adjust the sector size for each region ?

Regards,

Rajesh Kannan S

0 Anuj Gupta over 6 years ago in reply to Rajesh Kannan

TI__Genius 15985 points

Hi,

I hope you are using OSA_memAllocSR to allocate memory.
What is heap id are you giving.

Regards,
Anuj

0 Rajesh Kannan over 6 years ago in reply to Anuj Gupta

Genius 4480 points

Hi,

Using heap Id is OSA_HEAPID_DDR_CACHED_SR1.

In NullSrcLink_processData() for each frame, OSA_bufGetEmptyBuffer() will be called... Is getting failed and return pBuffer as NULL.

Regards,

Rajesh Kannan S

0 Sujith over 6 years ago in reply to Rajesh Kannan

TI__Genius 12455 points

Hi Rajesh,

Can you clarify, if the allocation is failing or getEmptyBuffer is failing in process call

Regards,
Sujith

0 Rajesh Kannan over 6 years ago in reply to Sujith

Genius 4480 points

Hi Sujith,

Thanks for your reply.

Allocation is success. Failing OSA_bufGetEmptyBuffer() in process call.

Kindly suggest !!!

Regards,

Rajesh Kannan S

0 Sujith over 6 years ago in reply to Rajesh Kannan

TI__Genius 12455 points

Hi Rajesh,

It could be that the next link in the chain is not releasing the buffer. Simple check would be look the number of frames processed by this link. It would remain constant across multiple print stats "p"

Regards,
Sujith

0 Rajesh Kannan over 6 years ago in reply to Sujith

Genius 4480 points

Hi Sujith,

Thanks for your reply.

For two channel, the bit-streams processed by NullSrc then decoder to display is fine.

If it's three channel, before processing itself it's getting NULL. Couldn't able to process the frames.
In my uscease, next chain is decoder.

Regards,

Rajesh Kannan S

0 Sujith over 6 years ago in reply to Rajesh Kannan

TI__Genius 12455 points

I will have to check on the multiple instantiation of the NullSrc, a quick hack would be to increase the number of frames allocated at create time of the NullSrc Link.

i.e. NullSrcLink_CreateParams.channelParams[chId].numBuffers = bigger number

Regards,
Sujith

0 Rajesh Kannan over 6 years ago in reply to Sujith

Genius 4480 points

Hi Sujith,

Thanks for your reply.

I have increased the numBuffers as 8. I could able to stream third camera couple of minutes. After that is getting stopped. I'm debugging this issue.

Kindly suggest

Regards,

Rajesh Kannan S

0 Sujith over 6 years ago in reply to Rajesh Kannan

TI__Genius 12455 points

Hi Rajesh,

Glad it worked out.
I would like to understand your usecase more, can we close this thread and request you to create a new thread for this follow up.

Regards,
Sujith

0 Rajesh Kannan over 6 years ago in reply to Sujith

Genius 4480 points

Hi Sujith,

Upto 2 channel its working fine. Increasing number of buffers is not a solution. It's extending the streaming time.

For 2 channel decoder link is releasing the buffers. If 3 channel is not releasing the buffer means, It needs to check an issue in terms of framework level.

In Process data call, OSA_BufHndl is giving address to System_Buffer *pBuffer.

While creating OSA_queCreate() function setted SYSTEM_IPC_MSGQ_MAX_ELEMENTS as 20. This malloc which is falling in SR2 region I guess.

Is there anyway to increase the size ? via memory map

Kindly suggest !!!

Regards,

Rajesh Kannan S

0 Anuj Gupta over 6 years ago in reply to Rajesh Kannan

TI__Genius 15985 points

Hi,

SYSTEM_IPC_MSGQ_MAX_ELEMENTS is the no of element is the ipc queue for the internal purpose of all cores communicating with each other.
So increasing this is not going to help.
Can you explain your usecase here.

Or a you can put a null link for the channel of nullSrc which is creating the issue and check.

Regards,
Anuj

0 Anuj Gupta over 6 years ago in reply to Anuj Gupta

TI__Genius 15985 points

Hi,

I hope you are able to resolve your issue with the inputs provided.
Please create a new thread if you have any other query.

Regards,
Anuj

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Linux/DRA72XEVM: System_Buffer support to handle multiple channels in nullSrc Decode Display