Buffer significance

pari sharma

Prodigy 240 points

TDA2XX processor

in Use case null_src_dec_display

while setting null src parameters there is one parameters called numbuffer which was set to 4

why number of buffers used is 4

Void chains_nullSrcDecDisplay_SetNullSrcPrms(Chains_NullSrcDisplayAppObj *pObj,NullSrcLink_CreateParams *pPrm)

{

pPrm->channelParams[chId].numBuffers = 4;

}

over 5 years ago

0 Keerthy J over 5 years ago

TI__Guru**** 169380 points

Hello Pari Sharma,

Can you tell us which SDK you are using?

- Keerthy

0 pari sharma over 5 years ago in reply to Keerthy J

Prodigy 240 points

PROCESSOR_SDK_VISION_03_04_00_00

0 Gaviraju Doddabettahalli Bettegowda over 5 years ago in reply to pari sharma

TI__Genius 14305 points

Hi,

When pPrm->channelParams[chId].numBuffers = 1;

From the above parameter setting, only one buffer is available in the NULL link buffer queue. When the NEW_DATA_CMD is triggered in the NULL link, it will take the buffer from the queue & fill the data then this buffer is passing to the next link. Again the NEW_DATA_CMD is triggered in the NULL link & it will try take the buffer from the queue but buffer is not available. So the NULL link will block until the next link release the buffer back to the NULL link queue. Due to this FPS will decreased. Because of this reason we recommended to set

pPrm->channelParams[chId].numBuffers = 4;

Thanks

Gaviraju

0 pari sharma over 5 years ago in reply to Gaviraju Doddabettahalli Bettegowda

Prodigy 240 points

Hi ,

Thanks a lot .

regards,

Pari Sharma

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Buffer significance