TDA2EVM5777: Vision SDK Use case : merge three link into single link with sync

Hi Rajesh,

I have forwarded your question to a VisionSDK expert.

Regards,
Yordan

Hi ,

While creating merge we get error in create function, please see below log for more information.

32.367504 s: CAPTURE: Create in progress !!! [IPU1-0] 32.367748 s: CAPTURE: VIP1 Slice0 PortA capture mode is [ 8-bit] !!! [IPU1-0] 32.486915 s: CAPTURE: VIP1 Slice1 PortA capture mode is [ 8-bit] !!! [IPU1-0] 32.605990 s: CAPTURE: VIP2 Slice0 PortA capture mode is [ 8-bit] !!! [IPU1-0] 32.725218 s: CAPTURE: Create Done !!! [IPU1-0] 32.725858 s: IPC_OUT_0 : Create in progress !!! [IPU1-0] 32.726224 s: IPC_OUT_0 : Create Done !!! [IPU1-0] 32.734429 s: IPC_IN_0 : Create in progress !!! [IPU1-0] 32.735405 s: IPC_IN_0 : Create Done !!! [IPU1-0] 32.736533 s: IPC_OUT_1 : Create in progress !!! [IPU1-0] 32.736869 s: IPC_OUT_1 : Create Done !!! [IPU1-0] 32.755779 s: IPC_IN_1 : Create in progress !!! [IPU1-0] 32.756816 s: IPC_IN_1 : Create Done !!! [IPU1-0] 32.757426 s: IPC_OUT_2 : Create in progress !!! [IPU1-0] 32.757762 s: IPC_OUT_2 : Create Done !!! [HOST ] 32.726377 s: IPC_IN_0 : Create in progress !!! [HOST ] 32.726682 s: IPC_IN_0 : Create Done !!! [HOST ] 32.726834 s: ALGORITHM: Create in progress (algId = 15) !!! [HOST ] 32.726865 s: [HOST ] LLUT:0 :71 :0 [HOST ] 32.726865 s: [HOST ] LLUT:819 :359 :528 [HOST ] 32.726865 s: [HOST ] RLUT:9 :463 :0 [HOST ] 32.726895 s: [HOST ] RLUT:1239 :359 :520 [HOST ] 32.726895 s: [HOST ] CLUT:2 :0 :0 [HOST ] 32.726926 s: [HOST ] CLUT:1277 :359 :849 [HOST ] 32.730982 s: UTILS: DMA: Allocated CH (TCC) = 0 (0) [HOST ] 32.731013 s: UTILS: DMA: 0 of 8: Allocated PaRAM = 0 (0x43305600) [HOST ] 32.731013 s: UTILS: DMA: 1 of 8: Allocated PaRAM = 177 (0x43305620) [HOST ] 32.731043 s: UTILS: DMA: 2 of 8: Allocated PaRAM = 178 (0x43305640) [HOST ] 32.731074 s: UTILS: DMA: 3 of 8: Allocated PaRAM = 179 (0x43305660) [HOST ] 32.731074 s: UTILS: DMA: 4 of 8: Allocated PaRAM = 180 (0x43305680) [HOST ] 32.731104 s: UTILS: DMA: 5 of 8: Allocated PaRAM = 181 (0x433056A0) [HOST ] 32.731104 s: UTILS: DMA: 6 of 8: Allocated PaRAM = 182 (0x433056C0) [HOST ] 32.731135 s: UTILS: DMA: 7 of 8: Allocated PaRAM = 183 (0x433056E0) [HOST ] 32.734185 s: ALGORITHM: Create Done (algId = 15) !!! [HOST ] 32.734307 s: IPC_OUT_0 : Create in progress !!! [HOST ] 32.734368 s: IPC_OUT_0 : Create Done !!! [HOST ] 32.757914 s: IPC_IN_1 : Create in progress !!! [HOST ] 32.758219 s: IPC_IN_1 : Create Done !!! [HOST ] 32.758311 s: ALGORITHM: Create in progress (algId = 0) !!! [HOST ] 32.762307 s: Assertion @ Line: 415 in algorithmLink_algPluginSupport.c: status == SYSTEM_LINK_STATUS_SOK : failed !!! [DSP1 ] 32.737082 s: IPC_IN_0 : Create in progress !!! [DSP1 ] 32.737509 s: IPC_IN_0 : Create Done !!! [DSP1 ] 32.737662 s: ALGORITHM: Create in progress (algId = 38) !!! [DSP1 ] 32.737784 s: ALG_CRMODULE: DMA: Allocated CH (TCC) = 0 (0) [DSP1 ] 32.755413 s: ALGORITHM: Create Done (algId = 38) !!! [DSP1 ] 32.755596 s: IPC_OUT_0 : Create in progress !!! [DSP1 ] 32.755688 s: IPC_OUT_0 : Create Done !!!

Could please help us , to identify issue here and how can we fix it ?

Thanks

Hi Rajesh,

Would require more information on your usecase. From the LOG it seems like IPC creation failed, probably, you are trying to connect more than 1 input into IPC.

Can you share the usecase diagram?

I would recommend to start another thread, as your question is answered and this error seems to be an implementation issue.

Regards,
Sujith

Thank you for your quick response

this is our flow

UseCase: chains_lvdsVipMultiCamViewMosaicWithLut

Capture -> Sync -> Alg_DmaSwMsWithLeftLut (A15) -> Dup

Dup -> Alg_CrModule (DSP1) -> Merge

Dup -> Alg_LrModule (DSP2) -> Merge

Dup -> Merge

Merge -> Alg_FrameCopy (A15) -> Display_video

GrpxSrc -> Display_Grpx

we have created priv.c and priv.h using usecase genration tool

it gives me error at

AlgorithmLink_putEmptyOutputBuffer(pObj, outputQId, pSystemBuffer);

our querys are

1)what other modification do we need to apply to merge 2 queue input ?

2)do we need to make modification in algorithm file ?

Hi Yash,

I guess you have 2 threads on the same topic, please use one.

The display can't display composite buffer, after merge, the video frames are sent as composite buffer. You will have to update the frame-copy or write your own algo plugin to do that.

I am not sure what your algo's do on DSP1/DSP2, If you objective is to display all three buffer (in a single screen). It's better you implement a simple algo-plugin which can do so. Ensure that this algo output's a video buffer.

Please elaborate on the system that you plan to implement
1. What is the output of Alog's on DSP1 and 2.
2. What do you plan to do with that data
3. Will you algo's complete execution within a frame-period time
4. What would happen if one of the algo completes and other dosen't
5. etc...

Regards,
Sujith

Hi,

Please read below for some details...

1. Capture three camera input say left, centre and right. (They will have some overlapped area between left and centre and centre and right).
2. We do the dup to make three copy of composite buffer.
3. We send two copy of composite buffer to DSP1 and DSP2 to find left seam line and right seam line.
4. Once we find left seam line and right seam line we would like to use it with first dup copy of composite buffer, so we would like to merge them.
5. After merge we would like to use three inputs as mentioned in point 4 to stitch image as a single buffer.

Here we can not specify which algorithm we use because of some limitation.

Assume that algorithm running on DSP will finish in time and if not then should we apply sync to make sure they are synchronised.

I hope this will help you to understand our case.

Thanks,